./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--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 006aa960ed1622b337a2cda4a1ad6a685b212b2d57c6c6998da1e861381a253d --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 12:38:58,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 12:38:58,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 12:38:58,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 12:38:58,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 12:38:58,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 12:38:58,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 12:38:58,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 12:38:58,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 12:38:58,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 12:38:58,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 12:38:58,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 12:38:58,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 12:38:58,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 12:38:58,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 12:38:58,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 12:38:58,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 12:38:58,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 12:38:58,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 12:38:59,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 12:38:59,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 12:38:59,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 12:38:59,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 12:38:59,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 12:38:59,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 12:38:59,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 12:38:59,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 12:38:59,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 12:38:59,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 12:38:59,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 12:38:59,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 12:38:59,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 12:38:59,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 12:38:59,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 12:38:59,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 12:38:59,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 12:38:59,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 12:38:59,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 12:38:59,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 12:38:59,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 12:38:59,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 12:38:59,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 12:38:59,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 12:38:59,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 12:38:59,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 12:38:59,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 12:38:59,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 12:38:59,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 12:38:59,049 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 12:38:59,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 12:38:59,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 12:38:59,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 12:38:59,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 12:38:59,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 12:38:59,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 12:38:59,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 12:38:59,051 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 12:38:59,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 12:38:59,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 12:38:59,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 12:38:59,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 12:38:59,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:38:59,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 12:38:59,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 12:38:59,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 12:38:59,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 12:38:59,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 12:38:59,053 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 12:38:59,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 12:38:59,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 12:38:59,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 12:38:59,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 006aa960ed1622b337a2cda4a1ad6a685b212b2d57c6c6998da1e861381a253d [2021-11-07 12:38:59,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 12:38:59,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 12:38:59,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 12:38:59,238 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 12:38:59,251 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 12:38:59,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-11-07 12:38:59,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0084cb09f/560df4b0b08e41a389741415ec7096ee/FLAGab28353d3 [2021-11-07 12:38:59,914 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 12:38:59,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-11-07 12:38:59,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0084cb09f/560df4b0b08e41a389741415ec7096ee/FLAGab28353d3 [2021-11-07 12:39:00,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0084cb09f/560df4b0b08e41a389741415ec7096ee [2021-11-07 12:39:00,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 12:39:00,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 12:39:00,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 12:39:00,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 12:39:00,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 12:39:00,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:39:00" (1/1) ... [2021-11-07 12:39:00,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2721c453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:00, skipping insertion in model container [2021-11-07 12:39:00,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:39:00" (1/1) ... [2021-11-07 12:39:00,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 12:39:00,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 12:39:01,227 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[171620,171633] [2021-11-07 12:39:01,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:39:02,072 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 12:39:02,157 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[171620,171633] [2021-11-07 12:39:02,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:39:02,553 INFO L208 MainTranslator]: Completed translation [2021-11-07 12:39:02,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:02 WrapperNode [2021-11-07 12:39:02,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 12:39:02,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 12:39:02,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 12:39:02,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 12:39:02,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:02" (1/1) ... [2021-11-07 12:39:02,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:02" (1/1) ... [2021-11-07 12:39:03,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 12:39:03,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 12:39:03,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 12:39:03,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 12:39:03,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:02" (1/1) ... [2021-11-07 12:39:03,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:02" (1/1) ... [2021-11-07 12:39:03,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:02" (1/1) ... [2021-11-07 12:39:03,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:02" (1/1) ... [2021-11-07 12:39:03,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:02" (1/1) ... [2021-11-07 12:39:03,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:02" (1/1) ... [2021-11-07 12:39:03,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:02" (1/1) ... [2021-11-07 12:39:03,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 12:39:03,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 12:39:03,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 12:39:03,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 12:39:03,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:02" (1/1) ... [2021-11-07 12:39:03,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:39:03,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:39:03,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 12:39:03,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 12:39:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-07 12:39:03,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-07 12:39:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2021-11-07 12:39:03,670 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2021-11-07 12:39:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2021-11-07 12:39:03,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2021-11-07 12:39:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2021-11-07 12:39:03,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2021-11-07 12:39:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 12:39:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 12:39:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 12:39:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2021-11-07 12:39:03,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2021-11-07 12:39:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2021-11-07 12:39:03,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2021-11-07 12:39:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_18 [2021-11-07 12:39:03,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_18 [2021-11-07 12:39:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2021-11-07 12:39:03,672 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2021-11-07 12:39:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 12:39:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure read_int_callback [2021-11-07 12:39:03,672 INFO L138 BoogieDeclarations]: Found implementation of procedure read_int_callback [2021-11-07 12:39:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 12:39:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure read_ctrl_callback [2021-11-07 12:39:03,673 INFO L138 BoogieDeclarations]: Found implementation of procedure read_ctrl_callback [2021-11-07 12:39:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2021-11-07 12:39:03,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2021-11-07 12:39:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2021-11-07 12:39:03,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2021-11-07 12:39:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2021-11-07 12:39:03,673 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2021-11-07 12:39:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 12:39:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2021-11-07 12:39:03,674 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2021-11-07 12:39:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 12:39:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 12:39:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2021-11-07 12:39:03,674 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2021-11-07 12:39:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure write_command_callback [2021-11-07 12:39:03,674 INFO L138 BoogieDeclarations]: Found implementation of procedure write_command_callback [2021-11-07 12:39:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 12:39:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 12:39:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 12:39:03,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 12:39:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure write_ctrl_callback [2021-11-07 12:39:03,675 INFO L138 BoogieDeclarations]: Found implementation of procedure write_ctrl_callback [2021-11-07 12:39:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure read_iso_callback [2021-11-07 12:39:03,676 INFO L138 BoogieDeclarations]: Found implementation of procedure read_iso_callback [2021-11-07 12:39:03,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 12:39:03,676 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2021-11-07 12:39:03,676 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2021-11-07 12:39:03,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 12:39:03,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 12:39:23,094 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 12:39:23,094 INFO L299 CfgBuilder]: Removed 2883 assume(true) statements. [2021-11-07 12:39:23,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:39:23 BoogieIcfgContainer [2021-11-07 12:39:23,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 12:39:23,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 12:39:23,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 12:39:23,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 12:39:23,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:39:00" (1/3) ... [2021-11-07 12:39:23,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5b12af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:39:23, skipping insertion in model container [2021-11-07 12:39:23,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:39:02" (2/3) ... [2021-11-07 12:39:23,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5b12af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:39:23, skipping insertion in model container [2021-11-07 12:39:23,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:39:23" (3/3) ... [2021-11-07 12:39:23,106 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-11-07 12:39:23,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 12:39:23,110 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 12:39:23,166 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 12:39:23,171 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 [2021-11-07 12:39:23,171 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 12:39:23,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 3647 states, 3536 states have (on average 1.529128959276018) internal successors, (5407), 3574 states have internal predecessors, (5407), 85 states have call successors, (85), 20 states have call predecessors, (85), 20 states have return successors, (85), 64 states have call predecessors, (85), 85 states have call successors, (85) [2021-11-07 12:39:23,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 12:39:23,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:23,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:39:23,235 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:23,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:23,239 INFO L85 PathProgramCache]: Analyzing trace with hash 431961628, now seen corresponding path program 1 times [2021-11-07 12:39:23,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:23,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645998131] [2021-11-07 12:39:23,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:23,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:23,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:39:23,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:23,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645998131] [2021-11-07 12:39:23,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645998131] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:39:23,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:39:23,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:39:23,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096102777] [2021-11-07 12:39:23,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:39:23,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:39:23,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:39:23,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:39:23,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:23,987 INFO L87 Difference]: Start difference. First operand has 3647 states, 3536 states have (on average 1.529128959276018) internal successors, (5407), 3574 states have internal predecessors, (5407), 85 states have call successors, (85), 20 states have call predecessors, (85), 20 states have return successors, (85), 64 states have call predecessors, (85), 85 states have call successors, (85) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:39:26,111 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:39:26,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:39:26,475 INFO L93 Difference]: Finished difference Result 10822 states and 16745 transitions. [2021-11-07 12:39:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:39:26,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-07 12:39:26,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:39:26,522 INFO L225 Difference]: With dead ends: 10822 [2021-11-07 12:39:26,523 INFO L226 Difference]: Without dead ends: 7156 [2021-11-07 12:39:26,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:26,548 INFO L933 BasicCegarLoop]: 5608 mSDtfsCounter, 5404 mSDsluCounter, 5489 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2121.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5404 SdHoareTripleChecker+Valid, 11097 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.39ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2210.09ms IncrementalHoareTripleChecker+Time [2021-11-07 12:39:26,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5404 Valid, 11097 Invalid, 15 Unknown, 0 Unchecked, 35.39ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2210.09ms Time] [2021-11-07 12:39:26,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7156 states. [2021-11-07 12:39:26,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7156 to 7156. [2021-11-07 12:39:26,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7156 states, 6941 states have (on average 1.5170724679441003) internal successors, (10530), 7011 states have internal predecessors, (10530), 170 states have call successors, (170), 40 states have call predecessors, (170), 40 states have return successors, (170), 128 states have call predecessors, (170), 170 states have call successors, (170) [2021-11-07 12:39:26,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7156 states to 7156 states and 10870 transitions. [2021-11-07 12:39:26,802 INFO L78 Accepts]: Start accepts. Automaton has 7156 states and 10870 transitions. Word has length 36 [2021-11-07 12:39:26,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:39:26,803 INFO L470 AbstractCegarLoop]: Abstraction has 7156 states and 10870 transitions. [2021-11-07 12:39:26,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:39:26,804 INFO L276 IsEmpty]: Start isEmpty. Operand 7156 states and 10870 transitions. [2021-11-07 12:39:26,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 12:39:26,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:26,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:39:26,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 12:39:26,811 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:26,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:26,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1223951380, now seen corresponding path program 1 times [2021-11-07 12:39:26,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:26,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705402395] [2021-11-07 12:39:26,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:26,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:39:27,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:27,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705402395] [2021-11-07 12:39:27,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705402395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:39:27,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:39:27,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:39:27,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636169309] [2021-11-07 12:39:27,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:39:27,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:39:27,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:39:27,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:39:27,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:27,131 INFO L87 Difference]: Start difference. First operand 7156 states and 10870 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:39:27,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:39:27,574 INFO L93 Difference]: Finished difference Result 21389 states and 32516 transitions. [2021-11-07 12:39:27,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:39:27,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 12:39:27,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:39:27,636 INFO L225 Difference]: With dead ends: 21389 [2021-11-07 12:39:27,637 INFO L226 Difference]: Without dead ends: 14267 [2021-11-07 12:39:27,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:27,659 INFO L933 BasicCegarLoop]: 5580 mSDtfsCounter, 5484 mSDsluCounter, 5448 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5484 SdHoareTripleChecker+Valid, 11028 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.04ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 169.13ms IncrementalHoareTripleChecker+Time [2021-11-07 12:39:27,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5484 Valid, 11028 Invalid, 22 Unknown, 0 Unchecked, 20.04ms Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 169.13ms Time] [2021-11-07 12:39:27,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14267 states. [2021-11-07 12:39:28,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14267 to 7157. [2021-11-07 12:39:28,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7157 states, 6942 states have (on average 1.5169979832901181) internal successors, (10531), 7012 states have internal predecessors, (10531), 170 states have call successors, (170), 40 states have call predecessors, (170), 40 states have return successors, (170), 128 states have call predecessors, (170), 170 states have call successors, (170) [2021-11-07 12:39:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7157 states to 7157 states and 10871 transitions. [2021-11-07 12:39:28,069 INFO L78 Accepts]: Start accepts. Automaton has 7157 states and 10871 transitions. Word has length 39 [2021-11-07 12:39:28,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:39:28,070 INFO L470 AbstractCegarLoop]: Abstraction has 7157 states and 10871 transitions. [2021-11-07 12:39:28,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:39:28,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7157 states and 10871 transitions. [2021-11-07 12:39:28,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 12:39:28,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:28,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:39:28,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 12:39:28,073 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:28,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:28,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1438559663, now seen corresponding path program 1 times [2021-11-07 12:39:28,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:28,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244845961] [2021-11-07 12:39:28,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:28,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:39:28,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:28,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244845961] [2021-11-07 12:39:28,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244845961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:39:28,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:39:28,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 12:39:28,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895884826] [2021-11-07 12:39:28,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:39:28,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:39:28,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:39:28,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:39:28,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:28,688 INFO L87 Difference]: Start difference. First operand 7157 states and 10871 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:39:29,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:39:29,188 INFO L93 Difference]: Finished difference Result 21401 states and 33042 transitions. [2021-11-07 12:39:29,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:39:29,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 12:39:29,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:39:29,246 INFO L225 Difference]: With dead ends: 21401 [2021-11-07 12:39:29,246 INFO L226 Difference]: Without dead ends: 14278 [2021-11-07 12:39:29,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:29,272 INFO L933 BasicCegarLoop]: 5678 mSDtfsCounter, 5512 mSDsluCounter, 5384 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 172.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5512 SdHoareTripleChecker+Valid, 11062 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.41ms SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 208.37ms IncrementalHoareTripleChecker+Time [2021-11-07 12:39:29,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5512 Valid, 11062 Invalid, 149 Unknown, 0 Unchecked, 19.41ms Time], IncrementalHoareTripleChecker [60 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 208.37ms Time] [2021-11-07 12:39:29,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14278 states. [2021-11-07 12:39:29,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14278 to 14266. [2021-11-07 12:39:29,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14266 states, 13841 states have (on average 1.513546709052814) internal successors, (20949), 13977 states have internal predecessors, (20949), 340 states have call successors, (340), 80 states have call predecessors, (340), 80 states have return successors, (510), 256 states have call predecessors, (510), 340 states have call successors, (510) [2021-11-07 12:39:29,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14266 states to 14266 states and 21799 transitions. [2021-11-07 12:39:29,611 INFO L78 Accepts]: Start accepts. Automaton has 14266 states and 21799 transitions. Word has length 39 [2021-11-07 12:39:29,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:39:29,611 INFO L470 AbstractCegarLoop]: Abstraction has 14266 states and 21799 transitions. [2021-11-07 12:39:29,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:39:29,616 INFO L276 IsEmpty]: Start isEmpty. Operand 14266 states and 21799 transitions. [2021-11-07 12:39:29,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 12:39:29,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:29,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:39:29,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 12:39:29,620 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:29,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:29,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1645686712, now seen corresponding path program 1 times [2021-11-07 12:39:29,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:29,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329656779] [2021-11-07 12:39:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:29,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:29,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:39:30,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:30,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329656779] [2021-11-07 12:39:30,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329656779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:39:30,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:39:30,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 12:39:30,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410530693] [2021-11-07 12:39:30,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:39:30,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:39:30,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:39:30,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:39:30,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:30,002 INFO L87 Difference]: Start difference. First operand 14266 states and 21799 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:39:30,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:39:30,682 INFO L93 Difference]: Finished difference Result 42712 states and 66814 transitions. [2021-11-07 12:39:30,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:39:30,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-07 12:39:30,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:39:30,781 INFO L225 Difference]: With dead ends: 42712 [2021-11-07 12:39:30,782 INFO L226 Difference]: Without dead ends: 28480 [2021-11-07 12:39:30,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:30,833 INFO L933 BasicCegarLoop]: 5713 mSDtfsCounter, 5534 mSDsluCounter, 5445 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5534 SdHoareTripleChecker+Valid, 11158 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.33ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.95ms IncrementalHoareTripleChecker+Time [2021-11-07 12:39:30,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5534 Valid, 11158 Invalid, 27 Unknown, 0 Unchecked, 17.33ms Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 41.95ms Time] [2021-11-07 12:39:30,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28480 states. [2021-11-07 12:39:31,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28480 to 28469. [2021-11-07 12:39:31,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28469 states, 27624 states have (on average 1.5131407471763685) internal successors, (41799), 27892 states have internal predecessors, (41799), 680 states have call successors, (680), 160 states have call predecessors, (680), 160 states have return successors, (1530), 512 states have call predecessors, (1530), 680 states have call successors, (1530) [2021-11-07 12:39:31,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28469 states to 28469 states and 44009 transitions. [2021-11-07 12:39:31,534 INFO L78 Accepts]: Start accepts. Automaton has 28469 states and 44009 transitions. Word has length 40 [2021-11-07 12:39:31,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:39:31,537 INFO L470 AbstractCegarLoop]: Abstraction has 28469 states and 44009 transitions. [2021-11-07 12:39:31,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:39:31,537 INFO L276 IsEmpty]: Start isEmpty. Operand 28469 states and 44009 transitions. [2021-11-07 12:39:31,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 12:39:31,542 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:31,542 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] [2021-11-07 12:39:31,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 12:39:31,543 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:31,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:31,543 INFO L85 PathProgramCache]: Analyzing trace with hash -523309351, now seen corresponding path program 1 times [2021-11-07 12:39:31,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:31,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126620524] [2021-11-07 12:39:31,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:31,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:39:31,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:31,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126620524] [2021-11-07 12:39:31,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126620524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:39:31,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:39:31,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 12:39:31,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140013502] [2021-11-07 12:39:31,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:39:31,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:39:31,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:39:31,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:39:31,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:31,798 INFO L87 Difference]: Start difference. First operand 28469 states and 44009 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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) [2021-11-07 12:39:32,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:39:32,256 INFO L93 Difference]: Finished difference Result 28474 states and 44013 transitions. [2021-11-07 12:39:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:39:32,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 41 [2021-11-07 12:39:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:39:32,351 INFO L225 Difference]: With dead ends: 28474 [2021-11-07 12:39:32,351 INFO L226 Difference]: Without dead ends: 28472 [2021-11-07 12:39:32,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:32,370 INFO L933 BasicCegarLoop]: 5717 mSDtfsCounter, 5531 mSDsluCounter, 5444 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5531 SdHoareTripleChecker+Valid, 11161 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.95ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.19ms IncrementalHoareTripleChecker+Time [2021-11-07 12:39:32,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5531 Valid, 11161 Invalid, 15 Unknown, 0 Unchecked, 14.95ms Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 21.19ms Time] [2021-11-07 12:39:32,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28472 states. [2021-11-07 12:39:33,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28472 to 28470. [2021-11-07 12:39:33,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28470 states, 27625 states have (on average 1.5131221719457013) internal successors, (41800), 27893 states have internal predecessors, (41800), 680 states have call successors, (680), 160 states have call predecessors, (680), 160 states have return successors, (1530), 512 states have call predecessors, (1530), 680 states have call successors, (1530) [2021-11-07 12:39:33,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28470 states to 28470 states and 44010 transitions. [2021-11-07 12:39:33,418 INFO L78 Accepts]: Start accepts. Automaton has 28470 states and 44010 transitions. Word has length 41 [2021-11-07 12:39:33,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:39:33,419 INFO L470 AbstractCegarLoop]: Abstraction has 28470 states and 44010 transitions. [2021-11-07 12:39:33,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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) [2021-11-07 12:39:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 28470 states and 44010 transitions. [2021-11-07 12:39:33,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 12:39:33,422 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:33,422 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] [2021-11-07 12:39:33,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 12:39:33,422 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:33,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:33,423 INFO L85 PathProgramCache]: Analyzing trace with hash 957289442, now seen corresponding path program 1 times [2021-11-07 12:39:33,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:33,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572590584] [2021-11-07 12:39:33,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:33,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:33,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:39:33,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:33,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572590584] [2021-11-07 12:39:33,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572590584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:39:33,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:39:33,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 12:39:33,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745715266] [2021-11-07 12:39:33,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:39:33,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:39:33,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:39:33,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:39:33,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:33,698 INFO L87 Difference]: Start difference. First operand 28470 states and 44010 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2021-11-07 12:39:34,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:39:34,179 INFO L93 Difference]: Finished difference Result 28470 states and 44010 transitions. [2021-11-07 12:39:34,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:39:34,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2021-11-07 12:39:34,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:39:34,281 INFO L225 Difference]: With dead ends: 28470 [2021-11-07 12:39:34,281 INFO L226 Difference]: Without dead ends: 28468 [2021-11-07 12:39:34,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.09ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:34,302 INFO L933 BasicCegarLoop]: 5499 mSDtfsCounter, 5460 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5460 SdHoareTripleChecker+Valid, 5499 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.61ms IncrementalHoareTripleChecker+Time [2021-11-07 12:39:34,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5460 Valid, 5499 Invalid, 1 Unknown, 0 Unchecked, 8.29ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.61ms Time] [2021-11-07 12:39:34,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28468 states. [2021-11-07 12:39:35,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28468 to 28468. [2021-11-07 12:39:35,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28468 states, 27624 states have (on average 1.5131045467709239) internal successors, (41798), 27891 states have internal predecessors, (41798), 680 states have call successors, (680), 160 states have call predecessors, (680), 160 states have return successors, (1530), 512 states have call predecessors, (1530), 680 states have call successors, (1530) [2021-11-07 12:39:35,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28468 states to 28468 states and 44008 transitions. [2021-11-07 12:39:35,169 INFO L78 Accepts]: Start accepts. Automaton has 28468 states and 44008 transitions. Word has length 42 [2021-11-07 12:39:35,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:39:35,169 INFO L470 AbstractCegarLoop]: Abstraction has 28468 states and 44008 transitions. [2021-11-07 12:39:35,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2021-11-07 12:39:35,170 INFO L276 IsEmpty]: Start isEmpty. Operand 28468 states and 44008 transitions. [2021-11-07 12:39:35,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 12:39:35,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:35,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:39:35,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 12:39:35,174 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:35,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:35,175 INFO L85 PathProgramCache]: Analyzing trace with hash -388788221, now seen corresponding path program 1 times [2021-11-07 12:39:35,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:35,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204124991] [2021-11-07 12:39:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:35,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:35,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:39:35,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:35,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204124991] [2021-11-07 12:39:35,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204124991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:39:35,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:39:35,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 12:39:35,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143800302] [2021-11-07 12:39:35,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:39:35,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:39:35,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:39:35,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:39:35,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:35,433 INFO L87 Difference]: Start difference. First operand 28468 states and 44008 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:39:35,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:39:35,784 INFO L93 Difference]: Finished difference Result 28468 states and 44008 transitions. [2021-11-07 12:39:35,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:39:35,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-07 12:39:35,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:39:35,887 INFO L225 Difference]: With dead ends: 28468 [2021-11-07 12:39:35,887 INFO L226 Difference]: Without dead ends: 28429 [2021-11-07 12:39:35,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:35,906 INFO L933 BasicCegarLoop]: 5498 mSDtfsCounter, 5457 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5457 SdHoareTripleChecker+Valid, 5498 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.15ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 12:39:35,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5457 Valid, 5498 Invalid, 0 Unknown, 0 Unchecked, 6.15ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 12:39:35,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28429 states. [2021-11-07 12:39:36,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28429 to 28429. [2021-11-07 12:39:36,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28429 states, 27586 states have (on average 1.5133401000507505) internal successors, (41747), 27852 states have internal predecessors, (41747), 680 states have call successors, (680), 160 states have call predecessors, (680), 160 states have return successors, (1530), 512 states have call predecessors, (1530), 680 states have call successors, (1530) [2021-11-07 12:39:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28429 states to 28429 states and 43957 transitions. [2021-11-07 12:39:36,706 INFO L78 Accepts]: Start accepts. Automaton has 28429 states and 43957 transitions. Word has length 43 [2021-11-07 12:39:36,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:39:36,707 INFO L470 AbstractCegarLoop]: Abstraction has 28429 states and 43957 transitions. [2021-11-07 12:39:36,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:39:36,707 INFO L276 IsEmpty]: Start isEmpty. Operand 28429 states and 43957 transitions. [2021-11-07 12:39:36,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 12:39:36,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:36,733 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:39:36,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 12:39:36,733 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:36,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:36,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1406530503, now seen corresponding path program 1 times [2021-11-07 12:39:36,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:36,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614395514] [2021-11-07 12:39:36,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:36,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:36,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:39:36,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:36,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614395514] [2021-11-07 12:39:36,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614395514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:39:36,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:39:36,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:39:36,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766880351] [2021-11-07 12:39:36,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:39:36,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:39:36,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:39:36,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:39:36,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:36,978 INFO L87 Difference]: Start difference. First operand 28429 states and 43957 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-07 12:39:38,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:39:38,003 INFO L93 Difference]: Finished difference Result 81002 states and 125728 transitions. [2021-11-07 12:39:38,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:39:38,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2021-11-07 12:39:38,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:39:38,207 INFO L225 Difference]: With dead ends: 81002 [2021-11-07 12:39:38,208 INFO L226 Difference]: Without dead ends: 52607 [2021-11-07 12:39:38,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.77ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:38,436 INFO L933 BasicCegarLoop]: 5637 mSDtfsCounter, 4716 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4716 SdHoareTripleChecker+Valid, 11068 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.68ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 130.99ms IncrementalHoareTripleChecker+Time [2021-11-07 12:39:38,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4716 Valid, 11068 Invalid, 24 Unknown, 0 Unchecked, 10.68ms Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 130.99ms Time] [2021-11-07 12:39:38,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52607 states. [2021-11-07 12:39:39,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52607 to 52505. [2021-11-07 12:39:39,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52505 states, 50862 states have (on average 1.5215288427509732) internal successors, (77388), 51392 states have internal predecessors, (77388), 1320 states have call successors, (1320), 320 states have call predecessors, (1320), 320 states have return successors, (2970), 984 states have call predecessors, (2970), 1320 states have call successors, (2970) [2021-11-07 12:39:39,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52505 states to 52505 states and 81678 transitions. [2021-11-07 12:39:39,911 INFO L78 Accepts]: Start accepts. Automaton has 52505 states and 81678 transitions. Word has length 98 [2021-11-07 12:39:39,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:39:39,912 INFO L470 AbstractCegarLoop]: Abstraction has 52505 states and 81678 transitions. [2021-11-07 12:39:39,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-07 12:39:39,913 INFO L276 IsEmpty]: Start isEmpty. Operand 52505 states and 81678 transitions. [2021-11-07 12:39:39,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 12:39:39,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:39,962 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:39:39,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 12:39:39,962 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:39,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:39,963 INFO L85 PathProgramCache]: Analyzing trace with hash -459747046, now seen corresponding path program 1 times [2021-11-07 12:39:39,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:39,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527503852] [2021-11-07 12:39:39,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:39,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:40,204 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 12:39:40,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:40,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527503852] [2021-11-07 12:39:40,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527503852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:39:40,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:39:40,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 12:39:40,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914266766] [2021-11-07 12:39:40,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:39:40,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 12:39:40,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:39:40,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 12:39:40,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 12:39:40,207 INFO L87 Difference]: Start difference. First operand 52505 states and 81678 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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) [2021-11-07 12:39:42,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:39:42,235 INFO L93 Difference]: Finished difference Result 120312 states and 186774 transitions. [2021-11-07 12:39:42,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 12:39:42,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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 120 [2021-11-07 12:39:42,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:39:42,447 INFO L225 Difference]: With dead ends: 120312 [2021-11-07 12:39:42,447 INFO L226 Difference]: Without dead ends: 67841 [2021-11-07 12:39:42,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.23ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:39:42,551 INFO L933 BasicCegarLoop]: 8688 mSDtfsCounter, 8781 mSDsluCounter, 5560 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 285.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8781 SdHoareTripleChecker+Valid, 14248 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.42ms SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 328.06ms IncrementalHoareTripleChecker+Time [2021-11-07 12:39:42,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8781 Valid, 14248 Invalid, 121 Unknown, 0 Unchecked, 20.42ms Time], IncrementalHoareTripleChecker [57 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 328.06ms Time] [2021-11-07 12:39:42,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67841 states. [2021-11-07 12:39:43,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67841 to 52513. [2021-11-07 12:39:44,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52513 states, 50870 states have (on average 1.5213288775309612) internal successors, (77390), 51400 states have internal predecessors, (77390), 1320 states have call successors, (1320), 320 states have call predecessors, (1320), 320 states have return successors, (2970), 984 states have call predecessors, (2970), 1320 states have call successors, (2970) [2021-11-07 12:39:44,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52513 states to 52513 states and 81680 transitions. [2021-11-07 12:39:44,291 INFO L78 Accepts]: Start accepts. Automaton has 52513 states and 81680 transitions. Word has length 120 [2021-11-07 12:39:44,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:39:44,291 INFO L470 AbstractCegarLoop]: Abstraction has 52513 states and 81680 transitions. [2021-11-07 12:39:44,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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) [2021-11-07 12:39:44,292 INFO L276 IsEmpty]: Start isEmpty. Operand 52513 states and 81680 transitions. [2021-11-07 12:39:44,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-07 12:39:44,335 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:44,335 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:39:44,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 12:39:44,336 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:44,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:44,336 INFO L85 PathProgramCache]: Analyzing trace with hash 225860666, now seen corresponding path program 1 times [2021-11-07 12:39:44,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:44,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208460480] [2021-11-07 12:39:44,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:44,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:44,601 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 12:39:44,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:44,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208460480] [2021-11-07 12:39:44,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208460480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:39:44,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:39:44,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:39:44,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280593015] [2021-11-07 12:39:44,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:39:44,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:39:44,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:39:44,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:39:44,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:44,603 INFO L87 Difference]: Start difference. First operand 52513 states and 81680 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2021-11-07 12:39:46,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:39:46,167 INFO L93 Difference]: Finished difference Result 105280 states and 163704 transitions. [2021-11-07 12:39:46,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:39:46,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 121 [2021-11-07 12:39:46,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:39:46,372 INFO L225 Difference]: With dead ends: 105280 [2021-11-07 12:39:46,372 INFO L226 Difference]: Without dead ends: 52801 [2021-11-07 12:39:46,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:46,464 INFO L933 BasicCegarLoop]: 5487 mSDtfsCounter, 45 mSDsluCounter, 5478 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 10965 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.33ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.02ms IncrementalHoareTripleChecker+Time [2021-11-07 12:39:46,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 10965 Invalid, 28 Unknown, 0 Unchecked, 9.33ms Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 42.02ms Time] [2021-11-07 12:39:46,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52801 states. [2021-11-07 12:39:47,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52801 to 52537. [2021-11-07 12:39:47,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52537 states, 50894 states have (on average 1.5210830353283296) internal successors, (77414), 51424 states have internal predecessors, (77414), 1320 states have call successors, (1320), 320 states have call predecessors, (1320), 320 states have return successors, (2970), 984 states have call predecessors, (2970), 1320 states have call successors, (2970) [2021-11-07 12:39:48,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52537 states to 52537 states and 81704 transitions. [2021-11-07 12:39:48,032 INFO L78 Accepts]: Start accepts. Automaton has 52537 states and 81704 transitions. Word has length 121 [2021-11-07 12:39:48,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:39:48,032 INFO L470 AbstractCegarLoop]: Abstraction has 52537 states and 81704 transitions. [2021-11-07 12:39:48,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2021-11-07 12:39:48,032 INFO L276 IsEmpty]: Start isEmpty. Operand 52537 states and 81704 transitions. [2021-11-07 12:39:48,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-07 12:39:48,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:48,068 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:39:48,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 12:39:48,069 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:48,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:48,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1615663599, now seen corresponding path program 1 times [2021-11-07 12:39:48,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:48,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678950717] [2021-11-07 12:39:48,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:48,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 12:39:48,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:48,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678950717] [2021-11-07 12:39:48,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678950717] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:39:48,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:39:48,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:39:48,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984384926] [2021-11-07 12:39:48,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:39:48,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:39:48,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:39:48,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:39:48,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:48,340 INFO L87 Difference]: Start difference. First operand 52537 states and 81704 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-07 12:39:49,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:39:49,578 INFO L93 Difference]: Finished difference Result 105280 states and 163680 transitions. [2021-11-07 12:39:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:39:49,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 125 [2021-11-07 12:39:49,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:39:49,764 INFO L225 Difference]: With dead ends: 105280 [2021-11-07 12:39:49,765 INFO L226 Difference]: Without dead ends: 52777 [2021-11-07 12:39:49,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:39:49,879 INFO L933 BasicCegarLoop]: 5472 mSDtfsCounter, 30 mSDsluCounter, 5460 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 10932 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.31ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.24ms IncrementalHoareTripleChecker+Time [2021-11-07 12:39:49,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 10932 Invalid, 64 Unknown, 0 Unchecked, 6.31ms Time], IncrementalHoareTripleChecker [10 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 69.24ms Time] [2021-11-07 12:39:50,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52777 states. [2021-11-07 12:39:51,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52777 to 52585. [2021-11-07 12:39:51,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52585 states, 50942 states have (on average 1.5205920458560716) internal successors, (77462), 51472 states have internal predecessors, (77462), 1320 states have call successors, (1320), 320 states have call predecessors, (1320), 320 states have return successors, (2970), 984 states have call predecessors, (2970), 1320 states have call successors, (2970) [2021-11-07 12:39:51,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52585 states to 52585 states and 81752 transitions. [2021-11-07 12:39:51,538 INFO L78 Accepts]: Start accepts. Automaton has 52585 states and 81752 transitions. Word has length 125 [2021-11-07 12:39:51,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:39:51,538 INFO L470 AbstractCegarLoop]: Abstraction has 52585 states and 81752 transitions. [2021-11-07 12:39:51,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-07 12:39:51,538 INFO L276 IsEmpty]: Start isEmpty. Operand 52585 states and 81752 transitions. [2021-11-07 12:39:51,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-07 12:39:51,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:51,574 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:39:51,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 12:39:51,575 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:51,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:51,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2070297612, now seen corresponding path program 1 times [2021-11-07 12:39:51,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:51,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477378182] [2021-11-07 12:39:51,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:51,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:51,826 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 12:39:51,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:51,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477378182] [2021-11-07 12:39:51,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477378182] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:39:51,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771341198] [2021-11-07 12:39:51,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:51,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:39:51,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:39:51,829 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 12:39:51,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 12:39:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:53,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 6497 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 12:39:53,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:39:53,883 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 12:39:53,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 12:39:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 12:39:54,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771341198] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 12:39:54,084 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 12:39:54,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-11-07 12:39:54,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460552729] [2021-11-07 12:39:54,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 12:39:54,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 12:39:54,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:39:54,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 12:39:54,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 12:39:54,085 INFO L87 Difference]: Start difference. First operand 52585 states and 81752 transitions. Second operand has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:39:55,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:39:55,533 INFO L93 Difference]: Finished difference Result 105616 states and 164088 transitions. [2021-11-07 12:39:55,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 12:39:55,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-11-07 12:39:55,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:39:55,674 INFO L225 Difference]: With dead ends: 105616 [2021-11-07 12:39:55,674 INFO L226 Difference]: Without dead ends: 53065 [2021-11-07 12:39:55,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11.20ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 12:39:55,745 INFO L933 BasicCegarLoop]: 5472 mSDtfsCounter, 90 mSDsluCounter, 16380 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 21852 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.45ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.14ms IncrementalHoareTripleChecker+Time [2021-11-07 12:39:55,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 21852 Invalid, 152 Unknown, 0 Unchecked, 10.45ms Time], IncrementalHoareTripleChecker [32 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 105.14ms Time] [2021-11-07 12:39:55,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53065 states. [2021-11-07 12:39:56,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53065 to 53065. [2021-11-07 12:39:56,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53065 states, 51422 states have (on average 1.516666018435689) internal successors, (77990), 51952 states have internal predecessors, (77990), 1320 states have call successors, (1320), 320 states have call predecessors, (1320), 320 states have return successors, (2970), 984 states have call predecessors, (2970), 1320 states have call successors, (2970) [2021-11-07 12:39:57,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53065 states to 53065 states and 82280 transitions. [2021-11-07 12:39:57,091 INFO L78 Accepts]: Start accepts. Automaton has 53065 states and 82280 transitions. Word has length 135 [2021-11-07 12:39:57,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:39:57,091 INFO L470 AbstractCegarLoop]: Abstraction has 53065 states and 82280 transitions. [2021-11-07 12:39:57,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:39:57,091 INFO L276 IsEmpty]: Start isEmpty. Operand 53065 states and 82280 transitions. [2021-11-07 12:39:57,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-07 12:39:57,145 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:39:57,145 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:39:57,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 12:39:57,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-07 12:39:57,346 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 12:39:57,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:39:57,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1676782612, now seen corresponding path program 2 times [2021-11-07 12:39:57,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:39:57,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643832343] [2021-11-07 12:39:57,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:39:57,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:39:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:39:57,627 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-07 12:39:57,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:39:57,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643832343] [2021-11-07 12:39:57,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643832343] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:39:57,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392756278] [2021-11-07 12:39:57,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 12:39:57,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:39:57,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:39:57,629 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 12:39:57,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process