./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 5f08f0f0 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-5f08f0f [2021-11-05 16:03:05,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 16:03:05,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 16:03:05,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 16:03:05,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 16:03:05,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 16:03:05,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 16:03:05,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 16:03:05,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 16:03:05,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 16:03:05,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 16:03:05,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 16:03:05,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 16:03:05,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 16:03:05,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 16:03:05,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 16:03:05,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 16:03:05,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 16:03:05,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 16:03:05,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 16:03:05,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 16:03:05,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 16:03:05,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 16:03:05,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 16:03:05,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 16:03:05,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 16:03:05,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 16:03:05,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 16:03:05,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 16:03:05,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 16:03:05,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 16:03:05,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 16:03:05,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 16:03:05,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 16:03:05,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 16:03:05,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 16:03:05,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 16:03:05,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 16:03:05,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 16:03:05,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 16:03:05,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 16:03:05,606 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 16:03:05,627 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 16:03:05,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 16:03:05,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 16:03:05,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 16:03:05,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 16:03:05,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 16:03:05,629 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 16:03:05,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 16:03:05,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 16:03:05,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 16:03:05,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 16:03:05,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 16:03:05,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 16:03:05,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 16:03:05,630 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 16:03:05,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 16:03:05,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 16:03:05,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 16:03:05,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 16:03:05,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 16:03:05,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 16:03:05,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 16:03:05,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 16:03:05,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 16:03:05,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 16:03:05,632 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 16:03:05,632 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 16:03:05,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 16:03:05,633 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 16:03:05,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 006aa960ed1622b337a2cda4a1ad6a685b212b2d57c6c6998da1e861381a253d [2021-11-05 16:03:05,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 16:03:05,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 16:03:05,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 16:03:05,937 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 16:03:05,938 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 16:03:05,939 INFO L432 ainManager$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 [2021-11-05 16:03:05,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8caa4249/0034800ad20a48b3b9e0d4a82da73560/FLAG0f37cc51c [2021-11-05 16:03:06,676 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 16:03:06,677 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 [2021-11-05 16:03:06,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8caa4249/0034800ad20a48b3b9e0d4a82da73560/FLAG0f37cc51c [2021-11-05 16:03:06,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8caa4249/0034800ad20a48b3b9e0d4a82da73560 [2021-11-05 16:03:06,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 16:03:06,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 16:03:06,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 16:03:06,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 16:03:06,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 16:03:06,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 04:03:06" (1/1) ... [2021-11-05 16:03:06,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6755d95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:06, skipping insertion in model container [2021-11-05 16:03:06,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 04:03:06" (1/1) ... [2021-11-05 16:03:06,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 16:03:06,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 16:03:07,842 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] [2021-11-05 16:03:08,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 16:03:08,764 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 16:03:08,830 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] [2021-11-05 16:03:09,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 16:03:09,231 INFO L208 MainTranslator]: Completed translation [2021-11-05 16:03:09,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:09 WrapperNode [2021-11-05 16:03:09,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 16:03:09,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 16:03:09,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 16:03:09,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 16:03:09,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:09" (1/1) ... [2021-11-05 16:03:09,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:09" (1/1) ... [2021-11-05 16:03:09,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 16:03:09,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 16:03:09,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 16:03:09,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 16:03:09,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:09" (1/1) ... [2021-11-05 16:03:09,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:09" (1/1) ... [2021-11-05 16:03:09,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:09" (1/1) ... [2021-11-05 16:03:09,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:09" (1/1) ... [2021-11-05 16:03:10,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:09" (1/1) ... [2021-11-05 16:03:10,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:09" (1/1) ... [2021-11-05 16:03:10,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:09" (1/1) ... [2021-11-05 16:03:10,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 16:03:10,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 16:03:10,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 16:03:10,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 16:03:10,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:09" (1/1) ... [2021-11-05 16:03:10,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 16:03:10,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 16:03:10,238 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) [2021-11-05 16:03:10,244 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 [2021-11-05 16:03:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-05 16:03:10,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-05 16:03:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2021-11-05 16:03:10,265 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2021-11-05 16:03:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2021-11-05 16:03:10,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2021-11-05 16:03:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2021-11-05 16:03:10,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2021-11-05 16:03:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 16:03:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-05 16:03:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 16:03:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2021-11-05 16:03:10,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2021-11-05 16:03:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2021-11-05 16:03:10,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2021-11-05 16:03:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_18 [2021-11-05 16:03:10,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_18 [2021-11-05 16:03:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2021-11-05 16:03:10,267 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2021-11-05 16:03:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 16:03:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure read_int_callback [2021-11-05 16:03:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure read_int_callback [2021-11-05 16:03:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 16:03:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure read_ctrl_callback [2021-11-05 16:03:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure read_ctrl_callback [2021-11-05 16:03:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2021-11-05 16:03:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2021-11-05 16:03:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2021-11-05 16:03:10,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2021-11-05 16:03:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2021-11-05 16:03:10,269 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2021-11-05 16:03:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 16:03:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2021-11-05 16:03:10,269 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2021-11-05 16:03:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 16:03:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 16:03:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2021-11-05 16:03:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2021-11-05 16:03:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure write_command_callback [2021-11-05 16:03:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure write_command_callback [2021-11-05 16:03:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 16:03:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 16:03:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 16:03:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 16:03:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure write_ctrl_callback [2021-11-05 16:03:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure write_ctrl_callback [2021-11-05 16:03:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure read_iso_callback [2021-11-05 16:03:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure read_iso_callback [2021-11-05 16:03:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 16:03:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2021-11-05 16:03:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2021-11-05 16:03:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 16:03:10,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 16:03:29,733 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 16:03:29,734 INFO L299 CfgBuilder]: Removed 2883 assume(true) statements. [2021-11-05 16:03:29,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 04:03:29 BoogieIcfgContainer [2021-11-05 16:03:29,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 16:03:29,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 16:03:29,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 16:03:29,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 16:03:29,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 04:03:06" (1/3) ... [2021-11-05 16:03:29,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1c7700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 04:03:29, skipping insertion in model container [2021-11-05 16:03:29,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:03:09" (2/3) ... [2021-11-05 16:03:29,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1c7700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 04:03:29, skipping insertion in model container [2021-11-05 16:03:29,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 04:03:29" (3/3) ... [2021-11-05 16:03:29,746 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-11-05 16:03:29,749 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 16:03:29,750 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-05 16:03:29,797 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 16:03:29,803 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 [2021-11-05 16:03:29,803 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-05 16:03:29,862 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) [2021-11-05 16:03:29,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-05 16:03:29,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:03:29,875 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] [2021-11-05 16:03:29,875 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)] === [2021-11-05 16:03:29,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:03:29,879 INFO L85 PathProgramCache]: Analyzing trace with hash 431961628, now seen corresponding path program 1 times [2021-11-05 16:03:29,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:03:29,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563227394] [2021-11-05 16:03:29,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:29,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:03:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:30,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:03:30,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:03:30,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563227394] [2021-11-05 16:03:30,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563227394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:03:30,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:03:30,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 16:03:30,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57632236] [2021-11-05 16:03:30,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:03:30,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:03:30,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:03:30,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:03:30,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:30,576 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) [2021-11-05 16:03:32,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 16:03:33,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:03:33,078 INFO L93 Difference]: Finished difference Result 10822 states and 16745 transitions. [2021-11-05 16:03:33,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:03:33,080 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 [2021-11-05 16:03:33,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:03:33,129 INFO L225 Difference]: With dead ends: 10822 [2021-11-05 16:03:33,130 INFO L226 Difference]: Without dead ends: 7156 [2021-11-05 16:03:33,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.61ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:33,157 INFO L933 BasicCegarLoop]: 5608 mSDtfsCounter, 5404 mSDsluCounter, 5489 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2131.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5404 SdHoareTripleChecker+Valid, 11097 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.04ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2229.60ms IncrementalHoareTripleChecker+Time [2021-11-05 16:03:33,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5404 Valid, 11097 Invalid, 15 Unknown, 0 Unchecked, 31.04ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2229.60ms Time] [2021-11-05 16:03:33,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7156 states. [2021-11-05 16:03:33,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7156 to 7156. [2021-11-05 16:03:33,359 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) [2021-11-05 16:03:33,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7156 states to 7156 states and 10870 transitions. [2021-11-05 16:03:33,394 INFO L78 Accepts]: Start accepts. Automaton has 7156 states and 10870 transitions. Word has length 36 [2021-11-05 16:03:33,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:03:33,395 INFO L470 AbstractCegarLoop]: Abstraction has 7156 states and 10870 transitions. [2021-11-05 16:03:33,395 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) [2021-11-05 16:03:33,396 INFO L276 IsEmpty]: Start isEmpty. Operand 7156 states and 10870 transitions. [2021-11-05 16:03:33,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-05 16:03:33,400 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:03:33,400 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] [2021-11-05 16:03:33,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 16:03:33,402 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)] === [2021-11-05 16:03:33,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:03:33,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1223951380, now seen corresponding path program 1 times [2021-11-05 16:03:33,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:03:33,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019948499] [2021-11-05 16:03:33,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:33,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:03:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:33,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:03:33,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:03:33,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019948499] [2021-11-05 16:03:33,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019948499] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:03:33,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:03:33,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 16:03:33,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548681859] [2021-11-05 16:03:33,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:03:33,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:03:33,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:03:33,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:03:33,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:33,760 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) [2021-11-05 16:03:34,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:03:34,142 INFO L93 Difference]: Finished difference Result 21389 states and 32516 transitions. [2021-11-05 16:03:34,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:03:34,143 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 [2021-11-05 16:03:34,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:03:34,201 INFO L225 Difference]: With dead ends: 21389 [2021-11-05 16:03:34,202 INFO L226 Difference]: Without dead ends: 14267 [2021-11-05 16:03:34,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:34,225 INFO L933 BasicCegarLoop]: 5580 mSDtfsCounter, 5484 mSDsluCounter, 5448 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5484 SdHoareTripleChecker+Valid, 11028 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.93ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 130.29ms IncrementalHoareTripleChecker+Time [2021-11-05 16:03:34,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5484 Valid, 11028 Invalid, 22 Unknown, 0 Unchecked, 17.93ms Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 130.29ms Time] [2021-11-05 16:03:34,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14267 states. [2021-11-05 16:03:34,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14267 to 7157. [2021-11-05 16:03:34,408 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) [2021-11-05 16:03:34,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7157 states to 7157 states and 10871 transitions. [2021-11-05 16:03:34,428 INFO L78 Accepts]: Start accepts. Automaton has 7157 states and 10871 transitions. Word has length 39 [2021-11-05 16:03:34,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:03:34,429 INFO L470 AbstractCegarLoop]: Abstraction has 7157 states and 10871 transitions. [2021-11-05 16:03:34,429 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) [2021-11-05 16:03:34,429 INFO L276 IsEmpty]: Start isEmpty. Operand 7157 states and 10871 transitions. [2021-11-05 16:03:34,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-05 16:03:34,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:03:34,431 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] [2021-11-05 16:03:34,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 16:03:34,432 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)] === [2021-11-05 16:03:34,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:03:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1438559663, now seen corresponding path program 1 times [2021-11-05 16:03:34,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:03:34,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713437209] [2021-11-05 16:03:34,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:34,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:03:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:03:35,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:03:35,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713437209] [2021-11-05 16:03:35,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713437209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:03:35,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:03:35,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 16:03:35,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657914900] [2021-11-05 16:03:35,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:03:35,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:03:35,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:03:35,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:03:35,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:35,035 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) [2021-11-05 16:03:35,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:03:35,542 INFO L93 Difference]: Finished difference Result 21401 states and 33042 transitions. [2021-11-05 16:03:35,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:03:35,543 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 [2021-11-05 16:03:35,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:03:35,613 INFO L225 Difference]: With dead ends: 21401 [2021-11-05 16:03:35,614 INFO L226 Difference]: Without dead ends: 14278 [2021-11-05 16:03:35,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:35,646 INFO L933 BasicCegarLoop]: 5678 mSDtfsCounter, 5512 mSDsluCounter, 5384 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 181.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5512 SdHoareTripleChecker+Valid, 11062 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.05ms SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 218.21ms IncrementalHoareTripleChecker+Time [2021-11-05 16:03:35,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5512 Valid, 11062 Invalid, 149 Unknown, 0 Unchecked, 24.05ms Time], IncrementalHoareTripleChecker [60 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 218.21ms Time] [2021-11-05 16:03:35,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14278 states. [2021-11-05 16:03:35,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14278 to 14266. [2021-11-05 16:03:35,943 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) [2021-11-05 16:03:35,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14266 states to 14266 states and 21799 transitions. [2021-11-05 16:03:35,979 INFO L78 Accepts]: Start accepts. Automaton has 14266 states and 21799 transitions. Word has length 39 [2021-11-05 16:03:35,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:03:35,980 INFO L470 AbstractCegarLoop]: Abstraction has 14266 states and 21799 transitions. [2021-11-05 16:03:35,980 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) [2021-11-05 16:03:35,981 INFO L276 IsEmpty]: Start isEmpty. Operand 14266 states and 21799 transitions. [2021-11-05 16:03:35,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-05 16:03:35,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:03:35,984 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] [2021-11-05 16:03:35,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 16:03:35,984 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)] === [2021-11-05 16:03:35,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:03:35,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1645686712, now seen corresponding path program 1 times [2021-11-05 16:03:35,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:03:35,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418980616] [2021-11-05 16:03:35,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:35,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:03:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:36,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:03:36,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:03:36,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418980616] [2021-11-05 16:03:36,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418980616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:03:36,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:03:36,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 16:03:36,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896790921] [2021-11-05 16:03:36,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:03:36,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:03:36,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:03:36,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:03:36,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:36,385 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) [2021-11-05 16:03:36,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:03:36,890 INFO L93 Difference]: Finished difference Result 42712 states and 66814 transitions. [2021-11-05 16:03:36,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:03:36,891 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 [2021-11-05 16:03:36,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:03:36,996 INFO L225 Difference]: With dead ends: 42712 [2021-11-05 16:03:36,996 INFO L226 Difference]: Without dead ends: 28480 [2021-11-05 16:03:37,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.61ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:37,053 INFO L933 BasicCegarLoop]: 5713 mSDtfsCounter, 5534 mSDsluCounter, 5445 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5534 SdHoareTripleChecker+Valid, 11158 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.85ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.45ms IncrementalHoareTripleChecker+Time [2021-11-05 16:03:37,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5534 Valid, 11158 Invalid, 27 Unknown, 0 Unchecked, 15.85ms Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 41.45ms Time] [2021-11-05 16:03:37,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28480 states. [2021-11-05 16:03:37,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28480 to 28469. [2021-11-05 16:03:37,951 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) [2021-11-05 16:03:38,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28469 states to 28469 states and 44009 transitions. [2021-11-05 16:03:38,033 INFO L78 Accepts]: Start accepts. Automaton has 28469 states and 44009 transitions. Word has length 40 [2021-11-05 16:03:38,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:03:38,033 INFO L470 AbstractCegarLoop]: Abstraction has 28469 states and 44009 transitions. [2021-11-05 16:03:38,033 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) [2021-11-05 16:03:38,034 INFO L276 IsEmpty]: Start isEmpty. Operand 28469 states and 44009 transitions. [2021-11-05 16:03:38,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-05 16:03:38,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:03:38,038 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] [2021-11-05 16:03:38,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 16:03:38,039 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)] === [2021-11-05 16:03:38,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:03:38,039 INFO L85 PathProgramCache]: Analyzing trace with hash -523309351, now seen corresponding path program 1 times [2021-11-05 16:03:38,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:03:38,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678657232] [2021-11-05 16:03:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:38,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:03:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:38,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:03:38,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:03:38,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678657232] [2021-11-05 16:03:38,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678657232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:03:38,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:03:38,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 16:03:38,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526626354] [2021-11-05 16:03:38,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:03:38,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:03:38,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:03:38,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:03:38,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:38,290 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) [2021-11-05 16:03:38,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:03:38,686 INFO L93 Difference]: Finished difference Result 28474 states and 44013 transitions. [2021-11-05 16:03:38,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:03:38,687 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 [2021-11-05 16:03:38,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:03:38,791 INFO L225 Difference]: With dead ends: 28474 [2021-11-05 16:03:38,792 INFO L226 Difference]: Without dead ends: 28472 [2021-11-05 16:03:38,810 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 [2021-11-05 16:03:38,811 INFO L933 BasicCegarLoop]: 5717 mSDtfsCounter, 5531 mSDsluCounter, 5444 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5531 SdHoareTripleChecker+Valid, 11161 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.47ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.85ms IncrementalHoareTripleChecker+Time [2021-11-05 16:03:38,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5531 Valid, 11161 Invalid, 15 Unknown, 0 Unchecked, 15.47ms Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 17.85ms Time] [2021-11-05 16:03:38,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28472 states. [2021-11-05 16:03:39,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28472 to 28470. [2021-11-05 16:03:39,677 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) [2021-11-05 16:03:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28470 states to 28470 states and 44010 transitions. [2021-11-05 16:03:39,748 INFO L78 Accepts]: Start accepts. Automaton has 28470 states and 44010 transitions. Word has length 41 [2021-11-05 16:03:39,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:03:39,749 INFO L470 AbstractCegarLoop]: Abstraction has 28470 states and 44010 transitions. [2021-11-05 16:03:39,749 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) [2021-11-05 16:03:39,749 INFO L276 IsEmpty]: Start isEmpty. Operand 28470 states and 44010 transitions. [2021-11-05 16:03:39,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-05 16:03:39,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:03:39,752 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] [2021-11-05 16:03:39,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 16:03:39,752 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)] === [2021-11-05 16:03:39,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:03:39,752 INFO L85 PathProgramCache]: Analyzing trace with hash 957289442, now seen corresponding path program 1 times [2021-11-05 16:03:39,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:03:39,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953176447] [2021-11-05 16:03:39,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:39,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:03:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:40,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:03:40,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:03:40,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953176447] [2021-11-05 16:03:40,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953176447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:03:40,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:03:40,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 16:03:40,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659000882] [2021-11-05 16:03:40,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:03:40,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:03:40,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:03:40,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:03:40,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:40,023 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) [2021-11-05 16:03:40,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:03:40,391 INFO L93 Difference]: Finished difference Result 28470 states and 44010 transitions. [2021-11-05 16:03:40,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:03:40,391 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 [2021-11-05 16:03:40,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:03:40,486 INFO L225 Difference]: With dead ends: 28470 [2021-11-05 16:03:40,486 INFO L226 Difference]: Without dead ends: 28468 [2021-11-05 16:03:40,504 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 [2021-11-05 16:03:40,505 INFO L933 BasicCegarLoop]: 5499 mSDtfsCounter, 5460 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5460 SdHoareTripleChecker+Valid, 5499 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.43ms IncrementalHoareTripleChecker+Time [2021-11-05 16:03:40,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5460 Valid, 5499 Invalid, 1 Unknown, 0 Unchecked, 7.75ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.43ms Time] [2021-11-05 16:03:40,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28468 states. [2021-11-05 16:03:41,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28468 to 28468. [2021-11-05 16:03:41,225 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) [2021-11-05 16:03:41,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28468 states to 28468 states and 44008 transitions. [2021-11-05 16:03:41,313 INFO L78 Accepts]: Start accepts. Automaton has 28468 states and 44008 transitions. Word has length 42 [2021-11-05 16:03:41,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:03:41,314 INFO L470 AbstractCegarLoop]: Abstraction has 28468 states and 44008 transitions. [2021-11-05 16:03:41,314 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) [2021-11-05 16:03:41,314 INFO L276 IsEmpty]: Start isEmpty. Operand 28468 states and 44008 transitions. [2021-11-05 16:03:41,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-05 16:03:41,318 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:03:41,318 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] [2021-11-05 16:03:41,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 16:03:41,319 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)] === [2021-11-05 16:03:41,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:03:41,321 INFO L85 PathProgramCache]: Analyzing trace with hash -388788221, now seen corresponding path program 1 times [2021-11-05 16:03:41,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:03:41,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294175744] [2021-11-05 16:03:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:41,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:03:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:03:41,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:03:41,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294175744] [2021-11-05 16:03:41,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294175744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:03:41,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:03:41,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 16:03:41,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782992521] [2021-11-05 16:03:41,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:03:41,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:03:41,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:03:41,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:03:41,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:41,589 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) [2021-11-05 16:03:41,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:03:41,949 INFO L93 Difference]: Finished difference Result 28468 states and 44008 transitions. [2021-11-05 16:03:41,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:03:41,950 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 [2021-11-05 16:03:41,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:03:42,044 INFO L225 Difference]: With dead ends: 28468 [2021-11-05 16:03:42,045 INFO L226 Difference]: Without dead ends: 28429 [2021-11-05 16:03:42,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:42,065 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, 6.93ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 16:03:42,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5457 Valid, 5498 Invalid, 0 Unknown, 0 Unchecked, 6.93ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 16:03:42,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28429 states. [2021-11-05 16:03:42,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28429 to 28429. [2021-11-05 16:03:42,763 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) [2021-11-05 16:03:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28429 states to 28429 states and 43957 transitions. [2021-11-05 16:03:42,847 INFO L78 Accepts]: Start accepts. Automaton has 28429 states and 43957 transitions. Word has length 43 [2021-11-05 16:03:42,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:03:42,848 INFO L470 AbstractCegarLoop]: Abstraction has 28429 states and 43957 transitions. [2021-11-05 16:03:42,848 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) [2021-11-05 16:03:42,848 INFO L276 IsEmpty]: Start isEmpty. Operand 28429 states and 43957 transitions. [2021-11-05 16:03:42,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-05 16:03:42,873 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:03:42,873 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] [2021-11-05 16:03:42,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 16:03:42,874 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)] === [2021-11-05 16:03:42,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:03:42,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1406530503, now seen corresponding path program 1 times [2021-11-05 16:03:42,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:03:42,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601186381] [2021-11-05 16:03:42,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:42,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:03:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:43,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:03:43,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:03:43,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601186381] [2021-11-05 16:03:43,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601186381] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:03:43,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:03:43,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 16:03:43,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747707827] [2021-11-05 16:03:43,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:03:43,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:03:43,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:03:43,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:03:43,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:43,143 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) [2021-11-05 16:03:44,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:03:44,368 INFO L93 Difference]: Finished difference Result 81002 states and 125728 transitions. [2021-11-05 16:03:44,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:03:44,368 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 [2021-11-05 16:03:44,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:03:44,587 INFO L225 Difference]: With dead ends: 81002 [2021-11-05 16:03:44,588 INFO L226 Difference]: Without dead ends: 52607 [2021-11-05 16:03:44,680 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 [2021-11-05 16:03:44,681 INFO L933 BasicCegarLoop]: 5637 mSDtfsCounter, 4716 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4716 SdHoareTripleChecker+Valid, 11068 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.10ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.56ms IncrementalHoareTripleChecker+Time [2021-11-05 16:03:44,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4716 Valid, 11068 Invalid, 24 Unknown, 0 Unchecked, 13.10ms Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 125.56ms Time] [2021-11-05 16:03:44,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52607 states. [2021-11-05 16:03:45,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52607 to 52505. [2021-11-05 16:03:46,065 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) [2021-11-05 16:03:46,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52505 states to 52505 states and 81678 transitions. [2021-11-05 16:03:46,231 INFO L78 Accepts]: Start accepts. Automaton has 52505 states and 81678 transitions. Word has length 98 [2021-11-05 16:03:46,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:03:46,232 INFO L470 AbstractCegarLoop]: Abstraction has 52505 states and 81678 transitions. [2021-11-05 16:03:46,233 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) [2021-11-05 16:03:46,233 INFO L276 IsEmpty]: Start isEmpty. Operand 52505 states and 81678 transitions. [2021-11-05 16:03:46,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-05 16:03:46,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:03:46,292 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] [2021-11-05 16:03:46,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 16:03:46,292 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)] === [2021-11-05 16:03:46,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:03:46,293 INFO L85 PathProgramCache]: Analyzing trace with hash -459747046, now seen corresponding path program 1 times [2021-11-05 16:03:46,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:03:46,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603135749] [2021-11-05 16:03:46,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:46,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:03:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:46,571 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 16:03:46,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:03:46,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603135749] [2021-11-05 16:03:46,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603135749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:03:46,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:03:46,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 16:03:46,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885118855] [2021-11-05 16:03:46,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:03:46,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 16:03:46,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:03:46,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 16:03:46,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 16:03:46,575 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) [2021-11-05 16:03:48,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:03:48,341 INFO L93 Difference]: Finished difference Result 120312 states and 186774 transitions. [2021-11-05 16:03:48,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 16:03:48,342 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 [2021-11-05 16:03:48,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:03:48,568 INFO L225 Difference]: With dead ends: 120312 [2021-11-05 16:03:48,569 INFO L226 Difference]: Without dead ends: 67841 [2021-11-05 16:03:48,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.28ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 16:03:48,684 INFO L933 BasicCegarLoop]: 8688 mSDtfsCounter, 8781 mSDsluCounter, 5560 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 299.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8781 SdHoareTripleChecker+Valid, 14248 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.37ms SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 356.21ms IncrementalHoareTripleChecker+Time [2021-11-05 16:03:48,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8781 Valid, 14248 Invalid, 121 Unknown, 0 Unchecked, 24.37ms Time], IncrementalHoareTripleChecker [57 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 356.21ms Time] [2021-11-05 16:03:48,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67841 states. [2021-11-05 16:03:50,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67841 to 52513. [2021-11-05 16:03:50,277 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) [2021-11-05 16:03:50,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52513 states to 52513 states and 81680 transitions. [2021-11-05 16:03:50,401 INFO L78 Accepts]: Start accepts. Automaton has 52513 states and 81680 transitions. Word has length 120 [2021-11-05 16:03:50,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:03:50,402 INFO L470 AbstractCegarLoop]: Abstraction has 52513 states and 81680 transitions. [2021-11-05 16:03:50,402 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) [2021-11-05 16:03:50,402 INFO L276 IsEmpty]: Start isEmpty. Operand 52513 states and 81680 transitions. [2021-11-05 16:03:50,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-05 16:03:50,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:03:50,441 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] [2021-11-05 16:03:50,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 16:03:50,441 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)] === [2021-11-05 16:03:50,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:03:50,442 INFO L85 PathProgramCache]: Analyzing trace with hash 225860666, now seen corresponding path program 1 times [2021-11-05 16:03:50,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:03:50,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881728608] [2021-11-05 16:03:50,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:50,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:03:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:50,697 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 16:03:50,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:03:50,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881728608] [2021-11-05 16:03:50,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881728608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:03:50,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:03:50,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 16:03:50,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779064311] [2021-11-05 16:03:50,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:03:50,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:03:50,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:03:50,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:03:50,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:50,700 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) [2021-11-05 16:03:52,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:03:52,023 INFO L93 Difference]: Finished difference Result 105280 states and 163704 transitions. [2021-11-05 16:03:52,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:03:52,023 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 [2021-11-05 16:03:52,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:03:52,381 INFO L225 Difference]: With dead ends: 105280 [2021-11-05 16:03:52,381 INFO L226 Difference]: Without dead ends: 52801 [2021-11-05 16:03:52,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:52,460 INFO L933 BasicCegarLoop]: 5487 mSDtfsCounter, 45 mSDsluCounter, 5478 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 10965 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.75ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.18ms IncrementalHoareTripleChecker+Time [2021-11-05 16:03:52,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 10965 Invalid, 28 Unknown, 0 Unchecked, 10.75ms Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 34.18ms Time] [2021-11-05 16:03:52,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52801 states. [2021-11-05 16:03:53,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52801 to 52537. [2021-11-05 16:03:53,633 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) [2021-11-05 16:03:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52537 states to 52537 states and 81704 transitions. [2021-11-05 16:03:53,914 INFO L78 Accepts]: Start accepts. Automaton has 52537 states and 81704 transitions. Word has length 121 [2021-11-05 16:03:53,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:03:53,915 INFO L470 AbstractCegarLoop]: Abstraction has 52537 states and 81704 transitions. [2021-11-05 16:03:53,915 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) [2021-11-05 16:03:53,915 INFO L276 IsEmpty]: Start isEmpty. Operand 52537 states and 81704 transitions. [2021-11-05 16:03:53,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-05 16:03:53,955 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:03:53,955 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] [2021-11-05 16:03:53,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 16:03:53,955 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)] === [2021-11-05 16:03:53,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:03:53,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1615663599, now seen corresponding path program 1 times [2021-11-05 16:03:53,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:03:53,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445893646] [2021-11-05 16:03:53,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:53,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:03:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:54,325 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 16:03:54,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:03:54,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445893646] [2021-11-05 16:03:54,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445893646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:03:54,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:03:54,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 16:03:54,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767132582] [2021-11-05 16:03:54,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:03:54,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:03:54,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:03:54,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:03:54,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:54,327 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) [2021-11-05 16:03:55,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:03:55,611 INFO L93 Difference]: Finished difference Result 105280 states and 163680 transitions. [2021-11-05 16:03:55,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:03:55,612 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 [2021-11-05 16:03:55,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:03:55,771 INFO L225 Difference]: With dead ends: 105280 [2021-11-05 16:03:55,771 INFO L226 Difference]: Without dead ends: 52777 [2021-11-05 16:03:55,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:03:55,968 INFO L933 BasicCegarLoop]: 5472 mSDtfsCounter, 30 mSDsluCounter, 5460 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 10932 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.14ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.04ms IncrementalHoareTripleChecker+Time [2021-11-05 16:03:55,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 10932 Invalid, 64 Unknown, 0 Unchecked, 10.14ms Time], IncrementalHoareTripleChecker [10 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 71.04ms Time] [2021-11-05 16:03:56,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52777 states. [2021-11-05 16:03:57,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52777 to 52585. [2021-11-05 16:03:57,156 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) [2021-11-05 16:03:57,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52585 states to 52585 states and 81752 transitions. [2021-11-05 16:03:57,296 INFO L78 Accepts]: Start accepts. Automaton has 52585 states and 81752 transitions. Word has length 125 [2021-11-05 16:03:57,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:03:57,296 INFO L470 AbstractCegarLoop]: Abstraction has 52585 states and 81752 transitions. [2021-11-05 16:03:57,296 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) [2021-11-05 16:03:57,296 INFO L276 IsEmpty]: Start isEmpty. Operand 52585 states and 81752 transitions. [2021-11-05 16:03:57,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-05 16:03:57,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:03:57,332 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] [2021-11-05 16:03:57,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 16:03:57,333 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)] === [2021-11-05 16:03:57,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:03:57,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2070297612, now seen corresponding path program 1 times [2021-11-05 16:03:57,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:03:57,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904948115] [2021-11-05 16:03:57,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:57,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:03:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:57,724 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 16:03:57,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:03:57,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904948115] [2021-11-05 16:03:57,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904948115] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 16:03:57,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992679379] [2021-11-05 16:03:57,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:03:57,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 16:03:57,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 16:03:57,726 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) [2021-11-05 16:03:57,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 16:03:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:03:59,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 6497 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 16:03:59,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 16:03:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 16:03:59,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 16:03:59,996 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 16:03:59,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992679379] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 16:03:59,997 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 16:03:59,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-11-05 16:03:59,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209377212] [2021-11-05 16:03:59,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 16:03:59,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 16:03:59,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:03:59,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 16:03:59,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-05 16:03:59,998 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) [2021-11-05 16:04:01,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:04:01,320 INFO L93 Difference]: Finished difference Result 105616 states and 164088 transitions. [2021-11-05 16:04:01,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 16:04:01,320 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 [2021-11-05 16:04:01,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:04:01,477 INFO L225 Difference]: With dead ends: 105616 [2021-11-05 16:04:01,478 INFO L226 Difference]: Without dead ends: 53065 [2021-11-05 16:04:01,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11.49ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-05 16:04:01,564 INFO L933 BasicCegarLoop]: 5472 mSDtfsCounter, 90 mSDsluCounter, 16380 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 105.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 21852 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.96ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126.86ms IncrementalHoareTripleChecker+Time [2021-11-05 16:04:01,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 21852 Invalid, 152 Unknown, 0 Unchecked, 10.96ms Time], IncrementalHoareTripleChecker [32 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 126.86ms Time] [2021-11-05 16:04:01,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53065 states. [2021-11-05 16:04:02,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53065 to 53065. [2021-11-05 16:04:02,909 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) [2021-11-05 16:04:03,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53065 states to 53065 states and 82280 transitions. [2021-11-05 16:04:03,041 INFO L78 Accepts]: Start accepts. Automaton has 53065 states and 82280 transitions. Word has length 135 [2021-11-05 16:04:03,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:04:03,042 INFO L470 AbstractCegarLoop]: Abstraction has 53065 states and 82280 transitions. [2021-11-05 16:04:03,042 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) [2021-11-05 16:04:03,042 INFO L276 IsEmpty]: Start isEmpty. Operand 53065 states and 82280 transitions. [2021-11-05 16:04:03,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-05 16:04:03,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:04:03,086 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] [2021-11-05 16:04:03,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-05 16:04:03,286 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 [2021-11-05 16:04:03,287 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)] === [2021-11-05 16:04:03,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:04:03,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1676782612, now seen corresponding path program 2 times [2021-11-05 16:04:03,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:04:03,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342761603] [2021-11-05 16:04:03,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:04:03,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:04:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:04:03,648 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-05 16:04:03,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:04:03,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342761603] [2021-11-05 16:04:03,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342761603] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 16:04:03,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692384310] [2021-11-05 16:04:03,649 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 16:04:03,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 16:04:03,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 16:04:03,650 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) [2021-11-05 16:04:03,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process