./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--usb--class--cdc-acm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.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 73338d683e10a9827a18cf31e1247b64129367b1297cba22c91c243b4552d29d --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 12:59:38,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 12:59:38,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 12:59:38,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 12:59:38,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 12:59:38,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 12:59:38,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 12:59:38,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 12:59:38,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 12:59:38,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 12:59:38,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 12:59:38,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 12:59:38,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 12:59:38,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 12:59:38,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 12:59:38,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 12:59:38,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 12:59:38,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 12:59:38,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 12:59:38,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 12:59:38,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 12:59:38,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 12:59:38,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 12:59:38,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 12:59:38,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 12:59:38,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 12:59:38,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 12:59:38,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 12:59:38,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 12:59:38,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 12:59:38,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 12:59:38,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 12:59:38,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 12:59:38,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 12:59:38,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 12:59:38,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 12:59:38,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 12:59:38,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 12:59:38,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 12:59:38,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 12:59:38,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 12:59:38,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 12:59:38,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 12:59:38,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 12:59:38,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 12:59:38,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 12:59:38,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 12:59:38,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 12:59:38,354 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 12:59:38,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 12:59:38,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 12:59:38,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 12:59:38,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 12:59:38,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 12:59:38,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 12:59:38,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 12:59:38,356 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 12:59:38,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 12:59:38,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 12:59:38,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 12:59:38,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 12:59:38,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:59:38,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 12:59:38,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 12:59:38,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 12:59:38,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 12:59:38,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 12:59:38,357 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 12:59:38,357 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 12:59:38,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 12:59:38,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 12:59:38,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73338d683e10a9827a18cf31e1247b64129367b1297cba22c91c243b4552d29d [2021-11-07 12:59:38,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 12:59:38,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 12:59:38,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 12:59:38,630 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 12:59:38,630 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 12:59:38,631 INFO L432 ainManager$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--usb--class--cdc-acm.ko-entry_point.cil.out.i [2021-11-07 12:59:38,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec873af31/d3ba3332b2934939adba6611730c2037/FLAG4643ef736 [2021-11-07 12:59:39,260 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 12:59:39,260 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--usb--class--cdc-acm.ko-entry_point.cil.out.i [2021-11-07 12:59:39,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec873af31/d3ba3332b2934939adba6611730c2037/FLAG4643ef736 [2021-11-07 12:59:39,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec873af31/d3ba3332b2934939adba6611730c2037 [2021-11-07 12:59:39,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 12:59:39,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 12:59:39,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 12:59:39,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 12:59:39,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 12:59:39,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:39" (1/1) ... [2021-11-07 12:59:39,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77be07dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:39, skipping insertion in model container [2021-11-07 12:59:39,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:39" (1/1) ... [2021-11-07 12:59:39,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 12:59:39,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 12:59:40,381 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--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2021-11-07 12:59:40,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:59:40,792 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 12:59:40,880 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--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2021-11-07 12:59:41,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:59:41,141 INFO L208 MainTranslator]: Completed translation [2021-11-07 12:59:41,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:41 WrapperNode [2021-11-07 12:59:41,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 12:59:41,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 12:59:41,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 12:59:41,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 12:59:41,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:41" (1/1) ... [2021-11-07 12:59:41,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:41" (1/1) ... [2021-11-07 12:59:41,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 12:59:41,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 12:59:41,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 12:59:41,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 12:59:41,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:41" (1/1) ... [2021-11-07 12:59:41,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:41" (1/1) ... [2021-11-07 12:59:41,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:41" (1/1) ... [2021-11-07 12:59:41,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:41" (1/1) ... [2021-11-07 12:59:41,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:41" (1/1) ... [2021-11-07 12:59:42,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:41" (1/1) ... [2021-11-07 12:59:42,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:41" (1/1) ... [2021-11-07 12:59:42,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 12:59:42,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 12:59:42,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 12:59:42,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 12:59:42,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:41" (1/1) ... [2021-11-07 12:59:42,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:59:42,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:59:42,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 12:59:42,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 12:59:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 12:59:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 12:59:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-07 12:59:42,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-07 12:59:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 12:59:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 12:59:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 12:59:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-07 12:59:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 12:59:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 12:59:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 12:59:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 12:59:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2021-11-07 12:59:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2021-11-07 12:59:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2021-11-07 12:59:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2021-11-07 12:59:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 12:59:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2021-11-07 12:59:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2021-11-07 12:59:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 12:59:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2021-11-07 12:59:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2021-11-07 12:59:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 12:59:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 12:59:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 12:59:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 12:59:42,241 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2021-11-07 12:59:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2021-11-07 12:59:42,241 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2021-11-07 12:59:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2021-11-07 12:59:42,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 12:59:42,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 12:59:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 12:59:42,242 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2021-11-07 12:59:42,242 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2021-11-07 12:59:58,536 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 12:59:58,537 INFO L299 CfgBuilder]: Removed 1975 assume(true) statements. [2021-11-07 12:59:58,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:58 BoogieIcfgContainer [2021-11-07 12:59:58,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 12:59:58,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 12:59:58,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 12:59:58,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 12:59:58,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:59:39" (1/3) ... [2021-11-07 12:59:58,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65caf4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:58, skipping insertion in model container [2021-11-07 12:59:58,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:41" (2/3) ... [2021-11-07 12:59:58,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65caf4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:58, skipping insertion in model container [2021-11-07 12:59:58,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:58" (3/3) ... [2021-11-07 12:59:58,546 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2021-11-07 12:59:58,549 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 12:59:58,551 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-07 12:59:58,602 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 12:59:58,608 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 12:59:58,608 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-07 12:59:58,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 1922 states, 1880 states have (on average 1.373404255319149) internal successors, (2582), 1892 states have internal predecessors, (2582), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-07 12:59:58,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 12:59:58,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:59:58,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:59:58,661 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 12:59:58,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:59:58,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2106712065, now seen corresponding path program 1 times [2021-11-07 12:59:58,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:59:58,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598072612] [2021-11-07 12:59:58,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:59:58,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:59:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:59:59,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:59:59,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:59:59,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598072612] [2021-11-07 12:59:59,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598072612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:59:59,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:59:59,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:59:59,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021184261] [2021-11-07 12:59:59,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:59:59,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:59:59,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:59:59,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:59:59,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:59:59,370 INFO L87 Difference]: Start difference. First operand has 1922 states, 1880 states have (on average 1.373404255319149) internal successors, (2582), 1892 states have internal predecessors, (2582), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:01,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:00:01,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:00:01,887 INFO L93 Difference]: Finished difference Result 5543 states and 7638 transitions. [2021-11-07 13:00:01,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:00:01,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2021-11-07 13:00:01,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:00:01,935 INFO L225 Difference]: With dead ends: 5543 [2021-11-07 13:00:01,936 INFO L226 Difference]: Without dead ends: 3574 [2021-11-07 13:00:01,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.81ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:01,950 INFO L933 BasicCegarLoop]: 2539 mSDtfsCounter, 2307 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2128.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2307 SdHoareTripleChecker+Valid, 5006 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.26ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2253.67ms IncrementalHoareTripleChecker+Time [2021-11-07 13:00:01,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2307 Valid, 5006 Invalid, 15 Unknown, 0 Unchecked, 15.26ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2253.67ms Time] [2021-11-07 13:00:01,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2021-11-07 13:00:02,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3566. [2021-11-07 13:00:02,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3566 states, 3493 states have (on average 1.3160606928141998) internal successors, (4597), 3507 states have internal predecessors, (4597), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) [2021-11-07 13:00:02,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3566 states to 3566 states and 4689 transitions. [2021-11-07 13:00:02,115 INFO L78 Accepts]: Start accepts. Automaton has 3566 states and 4689 transitions. Word has length 47 [2021-11-07 13:00:02,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:00:02,116 INFO L470 AbstractCegarLoop]: Abstraction has 3566 states and 4689 transitions. [2021-11-07 13:00:02,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:02,119 INFO L276 IsEmpty]: Start isEmpty. Operand 3566 states and 4689 transitions. [2021-11-07 13:00:02,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 13:00:02,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:00:02,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:00:02,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 13:00:02,129 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 13:00:02,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:00:02,130 INFO L85 PathProgramCache]: Analyzing trace with hash -277741212, now seen corresponding path program 1 times [2021-11-07 13:00:02,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:00:02,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879387304] [2021-11-07 13:00:02,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:00:02,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:00:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:02,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:00:02,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:00:02,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879387304] [2021-11-07 13:00:02,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879387304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:00:02,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:00:02,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:00:02,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118908142] [2021-11-07 13:00:02,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:00:02,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:00:02,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:00:02,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:00:02,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:02,744 INFO L87 Difference]: Start difference. First operand 3566 states and 4689 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:03,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:00:03,037 INFO L93 Difference]: Finished difference Result 10434 states and 13912 transitions. [2021-11-07 13:00:03,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:00:03,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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 55 [2021-11-07 13:00:03,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:00:03,066 INFO L225 Difference]: With dead ends: 10434 [2021-11-07 13:00:03,066 INFO L226 Difference]: Without dead ends: 6999 [2021-11-07 13:00:03,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:03,078 INFO L933 BasicCegarLoop]: 2485 mSDtfsCounter, 2420 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2420 SdHoareTripleChecker+Valid, 4762 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.00ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 129.19ms IncrementalHoareTripleChecker+Time [2021-11-07 13:00:03,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2420 Valid, 4762 Invalid, 84 Unknown, 0 Unchecked, 12.00ms Time], IncrementalHoareTripleChecker [24 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 129.19ms Time] [2021-11-07 13:00:03,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6999 states. [2021-11-07 13:00:03,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6999 to 6979. [2021-11-07 13:00:03,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6979 states, 6842 states have (on average 1.3164279450453085) internal successors, (9007), 6862 states have internal predecessors, (9007), 92 states have call successors, (92), 36 states have call predecessors, (92), 36 states have return successors, (138), 84 states have call predecessors, (138), 92 states have call successors, (138) [2021-11-07 13:00:03,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6979 states to 6979 states and 9237 transitions. [2021-11-07 13:00:03,250 INFO L78 Accepts]: Start accepts. Automaton has 6979 states and 9237 transitions. Word has length 55 [2021-11-07 13:00:03,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:00:03,250 INFO L470 AbstractCegarLoop]: Abstraction has 6979 states and 9237 transitions. [2021-11-07 13:00:03,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:03,251 INFO L276 IsEmpty]: Start isEmpty. Operand 6979 states and 9237 transitions. [2021-11-07 13:00:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 13:00:03,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:00:03,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:00:03,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 13:00:03,253 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 13:00:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:00:03,254 INFO L85 PathProgramCache]: Analyzing trace with hash -20038658, now seen corresponding path program 1 times [2021-11-07 13:00:03,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:00:03,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239970022] [2021-11-07 13:00:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:00:03,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:00:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:03,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:00:03,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:00:03,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239970022] [2021-11-07 13:00:03,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239970022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:00:03,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:00:03,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:00:03,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743066233] [2021-11-07 13:00:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:00:03,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:00:03,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:00:03,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:00:03,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:03,636 INFO L87 Difference]: Start difference. First operand 6979 states and 9237 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:03,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:00:03,884 INFO L93 Difference]: Finished difference Result 6979 states and 9237 transitions. [2021-11-07 13:00:03,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:00:03,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 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 56 [2021-11-07 13:00:03,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:00:03,913 INFO L225 Difference]: With dead ends: 6979 [2021-11-07 13:00:03,913 INFO L226 Difference]: Without dead ends: 6977 [2021-11-07 13:00:03,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:03,922 INFO L933 BasicCegarLoop]: 2464 mSDtfsCounter, 2411 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.74ms IncrementalHoareTripleChecker+Time [2021-11-07 13:00:03,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2411 Valid, 2464 Invalid, 1 Unknown, 0 Unchecked, 6.12ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.74ms Time] [2021-11-07 13:00:03,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6977 states. [2021-11-07 13:00:04,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6977 to 6977. [2021-11-07 13:00:04,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6977 states, 6841 states have (on average 1.316328022218974) internal successors, (9005), 6860 states have internal predecessors, (9005), 92 states have call successors, (92), 36 states have call predecessors, (92), 36 states have return successors, (138), 84 states have call predecessors, (138), 92 states have call successors, (138) [2021-11-07 13:00:04,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6977 states to 6977 states and 9235 transitions. [2021-11-07 13:00:04,130 INFO L78 Accepts]: Start accepts. Automaton has 6977 states and 9235 transitions. Word has length 56 [2021-11-07 13:00:04,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:00:04,133 INFO L470 AbstractCegarLoop]: Abstraction has 6977 states and 9235 transitions. [2021-11-07 13:00:04,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:04,133 INFO L276 IsEmpty]: Start isEmpty. Operand 6977 states and 9235 transitions. [2021-11-07 13:00:04,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 13:00:04,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:00:04,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:00:04,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 13:00:04,136 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 13:00:04,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:00:04,136 INFO L85 PathProgramCache]: Analyzing trace with hash -621194066, now seen corresponding path program 1 times [2021-11-07 13:00:04,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:00:04,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810304847] [2021-11-07 13:00:04,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:00:04,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:00:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:04,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:00:04,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:00:04,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810304847] [2021-11-07 13:00:04,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810304847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:00:04,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:00:04,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:00:04,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759176701] [2021-11-07 13:00:04,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:00:04,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:00:04,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:00:04,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:00:04,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:04,395 INFO L87 Difference]: Start difference. First operand 6977 states and 9235 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:04,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:00:04,526 INFO L93 Difference]: Finished difference Result 6977 states and 9235 transitions. [2021-11-07 13:00:04,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:00:04,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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 57 [2021-11-07 13:00:04,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:00:04,554 INFO L225 Difference]: With dead ends: 6977 [2021-11-07 13:00:04,555 INFO L226 Difference]: Without dead ends: 6975 [2021-11-07 13:00:04,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:04,562 INFO L933 BasicCegarLoop]: 2462 mSDtfsCounter, 2408 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 2462 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.14ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.34ms IncrementalHoareTripleChecker+Time [2021-11-07 13:00:04,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2408 Valid, 2462 Invalid, 1 Unknown, 0 Unchecked, 5.14ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.34ms Time] [2021-11-07 13:00:04,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6975 states. [2021-11-07 13:00:04,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6975 to 6975. [2021-11-07 13:00:04,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6975 states, 6840 states have (on average 1.3162280701754385) internal successors, (9003), 6858 states have internal predecessors, (9003), 92 states have call successors, (92), 36 states have call predecessors, (92), 36 states have return successors, (138), 84 states have call predecessors, (138), 92 states have call successors, (138) [2021-11-07 13:00:04,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6975 states to 6975 states and 9233 transitions. [2021-11-07 13:00:04,795 INFO L78 Accepts]: Start accepts. Automaton has 6975 states and 9233 transitions. Word has length 57 [2021-11-07 13:00:04,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:00:04,797 INFO L470 AbstractCegarLoop]: Abstraction has 6975 states and 9233 transitions. [2021-11-07 13:00:04,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:04,798 INFO L276 IsEmpty]: Start isEmpty. Operand 6975 states and 9233 transitions. [2021-11-07 13:00:04,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 13:00:04,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:00:04,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:00:04,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 13:00:04,802 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 13:00:04,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:00:04,803 INFO L85 PathProgramCache]: Analyzing trace with hash -2077142520, now seen corresponding path program 1 times [2021-11-07 13:00:04,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:00:04,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360811854] [2021-11-07 13:00:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:00:04,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:00:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:00:05,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:00:05,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360811854] [2021-11-07 13:00:05,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360811854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:00:05,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:00:05,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:00:05,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739487735] [2021-11-07 13:00:05,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:00:05,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:00:05,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:00:05,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:00:05,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:05,088 INFO L87 Difference]: Start difference. First operand 6975 states and 9233 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:05,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:00:05,556 INFO L93 Difference]: Finished difference Result 20574 states and 27566 transitions. [2021-11-07 13:00:05,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:00:05,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 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 58 [2021-11-07 13:00:05,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:00:05,616 INFO L225 Difference]: With dead ends: 20574 [2021-11-07 13:00:05,616 INFO L226 Difference]: Without dead ends: 13730 [2021-11-07 13:00:05,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.11ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:05,636 INFO L933 BasicCegarLoop]: 2556 mSDtfsCounter, 2373 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2373 SdHoareTripleChecker+Valid, 4876 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.49ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.14ms IncrementalHoareTripleChecker+Time [2021-11-07 13:00:05,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2373 Valid, 4876 Invalid, 29 Unknown, 0 Unchecked, 9.49ms Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 66.14ms Time] [2021-11-07 13:00:05,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13730 states. [2021-11-07 13:00:05,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13730 to 13555. [2021-11-07 13:00:05,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13555 states, 13296 states have (on average 1.31911853188929) internal successors, (17539), 13329 states have internal predecessors, (17539), 180 states have call successors, (180), 72 states have call predecessors, (180), 72 states have return successors, (402), 161 states have call predecessors, (402), 180 states have call successors, (402) [2021-11-07 13:00:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13555 states to 13555 states and 18121 transitions. [2021-11-07 13:00:05,982 INFO L78 Accepts]: Start accepts. Automaton has 13555 states and 18121 transitions. Word has length 58 [2021-11-07 13:00:05,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:00:05,983 INFO L470 AbstractCegarLoop]: Abstraction has 13555 states and 18121 transitions. [2021-11-07 13:00:05,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:05,983 INFO L276 IsEmpty]: Start isEmpty. Operand 13555 states and 18121 transitions. [2021-11-07 13:00:05,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 13:00:05,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:00:05,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:00:05,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 13:00:05,986 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 13:00:05,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:00:05,986 INFO L85 PathProgramCache]: Analyzing trace with hash 33095672, now seen corresponding path program 1 times [2021-11-07 13:00:05,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:00:05,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432677398] [2021-11-07 13:00:05,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:00:05,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:00:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:06,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:00:06,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:00:06,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432677398] [2021-11-07 13:00:06,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432677398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:00:06,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:00:06,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:00:06,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510970053] [2021-11-07 13:00:06,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:00:06,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:00:06,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:00:06,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:00:06,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:06,271 INFO L87 Difference]: Start difference. First operand 13555 states and 18121 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:06,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:00:06,502 INFO L93 Difference]: Finished difference Result 13555 states and 18121 transitions. [2021-11-07 13:00:06,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:00:06,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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 59 [2021-11-07 13:00:06,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:00:06,540 INFO L225 Difference]: With dead ends: 13555 [2021-11-07 13:00:06,540 INFO L226 Difference]: Without dead ends: 13544 [2021-11-07 13:00:06,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:06,550 INFO L933 BasicCegarLoop]: 2461 mSDtfsCounter, 2404 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2404 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.86ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 13:00:06,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2404 Valid, 2461 Invalid, 0 Unknown, 0 Unchecked, 4.86ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 13:00:06,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13544 states. [2021-11-07 13:00:07,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13544 to 13544. [2021-11-07 13:00:07,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13544 states, 13286 states have (on average 1.3189823874755382) internal successors, (17524), 13318 states have internal predecessors, (17524), 180 states have call successors, (180), 72 states have call predecessors, (180), 72 states have return successors, (402), 161 states have call predecessors, (402), 180 states have call successors, (402) [2021-11-07 13:00:07,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13544 states to 13544 states and 18106 transitions. [2021-11-07 13:00:07,079 INFO L78 Accepts]: Start accepts. Automaton has 13544 states and 18106 transitions. Word has length 59 [2021-11-07 13:00:07,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:00:07,079 INFO L470 AbstractCegarLoop]: Abstraction has 13544 states and 18106 transitions. [2021-11-07 13:00:07,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:07,080 INFO L276 IsEmpty]: Start isEmpty. Operand 13544 states and 18106 transitions. [2021-11-07 13:00:07,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 13:00:07,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:00:07,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:00:07,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 13:00:07,084 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 13:00:07,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:00:07,084 INFO L85 PathProgramCache]: Analyzing trace with hash 572587737, now seen corresponding path program 1 times [2021-11-07 13:00:07,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:00:07,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164548523] [2021-11-07 13:00:07,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:00:07,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:00:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:00:07,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:00:07,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164548523] [2021-11-07 13:00:07,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164548523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:00:07,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:00:07,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:00:07,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125228067] [2021-11-07 13:00:07,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:00:07,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:00:07,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:00:07,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:00:07,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:07,406 INFO L87 Difference]: Start difference. First operand 13544 states and 18106 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:08,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:00:08,260 INFO L93 Difference]: Finished difference Result 39620 states and 53051 transitions. [2021-11-07 13:00:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:00:08,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2021-11-07 13:00:08,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:00:08,345 INFO L225 Difference]: With dead ends: 39620 [2021-11-07 13:00:08,346 INFO L226 Difference]: Without dead ends: 26207 [2021-11-07 13:00:08,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:08,387 INFO L933 BasicCegarLoop]: 2493 mSDtfsCounter, 2282 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 4795 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.04ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 161.62ms IncrementalHoareTripleChecker+Time [2021-11-07 13:00:08,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2282 Valid, 4795 Invalid, 14 Unknown, 0 Unchecked, 10.04ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 161.62ms Time] [2021-11-07 13:00:08,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26207 states. [2021-11-07 13:00:09,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26207 to 26164. [2021-11-07 13:00:09,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26164 states, 25666 states have (on average 1.3212031481337179) internal successors, (33910), 25722 states have internal predecessors, (33910), 348 states have call successors, (348), 144 states have call predecessors, (348), 144 states have return successors, (780), 313 states have call predecessors, (780), 348 states have call successors, (780) [2021-11-07 13:00:09,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26164 states to 26164 states and 35038 transitions. [2021-11-07 13:00:09,299 INFO L78 Accepts]: Start accepts. Automaton has 26164 states and 35038 transitions. Word has length 67 [2021-11-07 13:00:09,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:00:09,300 INFO L470 AbstractCegarLoop]: Abstraction has 26164 states and 35038 transitions. [2021-11-07 13:00:09,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:09,300 INFO L276 IsEmpty]: Start isEmpty. Operand 26164 states and 35038 transitions. [2021-11-07 13:00:09,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 13:00:09,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:00:09,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:00:09,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 13:00:09,309 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 13:00:09,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:00:09,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1004174795, now seen corresponding path program 1 times [2021-11-07 13:00:09,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:00:09,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711133900] [2021-11-07 13:00:09,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:00:09,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:00:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:09,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:00:09,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:00:09,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711133900] [2021-11-07 13:00:09,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711133900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:00:09,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:00:09,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:00:09,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096691923] [2021-11-07 13:00:09,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:00:09,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:00:09,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:00:09,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:00:09,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:09,551 INFO L87 Difference]: Start difference. First operand 26164 states and 35038 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:10,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:00:10,618 INFO L93 Difference]: Finished difference Result 66269 states and 89517 transitions. [2021-11-07 13:00:10,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:00:10,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-07 13:00:10,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:00:10,762 INFO L225 Difference]: With dead ends: 66269 [2021-11-07 13:00:10,763 INFO L226 Difference]: Without dead ends: 40236 [2021-11-07 13:00:10,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.61ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:10,837 INFO L933 BasicCegarLoop]: 2479 mSDtfsCounter, 1487 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 4768 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.14ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 134.09ms IncrementalHoareTripleChecker+Time [2021-11-07 13:00:10,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1487 Valid, 4768 Invalid, 25 Unknown, 0 Unchecked, 8.14ms Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 134.09ms Time] [2021-11-07 13:00:10,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40236 states. [2021-11-07 13:00:12,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40236 to 40152. [2021-11-07 13:00:12,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40152 states, 39258 states have (on average 1.3391665393040908) internal successors, (52573), 39366 states have internal predecessors, (52573), 600 states have call successors, (600), 288 states have call predecessors, (600), 288 states have return successors, (1344), 529 states have call predecessors, (1344), 600 states have call successors, (1344) [2021-11-07 13:00:12,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40152 states to 40152 states and 54517 transitions. [2021-11-07 13:00:12,230 INFO L78 Accepts]: Start accepts. Automaton has 40152 states and 54517 transitions. Word has length 96 [2021-11-07 13:00:12,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:00:12,230 INFO L470 AbstractCegarLoop]: Abstraction has 40152 states and 54517 transitions. [2021-11-07 13:00:12,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:12,231 INFO L276 IsEmpty]: Start isEmpty. Operand 40152 states and 54517 transitions. [2021-11-07 13:00:12,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-07 13:00:12,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:00:12,247 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 13:00:12,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 13:00:12,247 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 13:00:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:00:12,248 INFO L85 PathProgramCache]: Analyzing trace with hash 873586975, now seen corresponding path program 1 times [2021-11-07 13:00:12,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:00:12,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975266192] [2021-11-07 13:00:12,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:00:12,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:00:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:12,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:00:12,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:00:12,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975266192] [2021-11-07 13:00:12,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975266192] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:00:12,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:00:12,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 13:00:12,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325800901] [2021-11-07 13:00:12,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:00:12,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 13:00:12,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:00:12,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 13:00:12,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 13:00:12,544 INFO L87 Difference]: Start difference. First operand 40152 states and 54517 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:14,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:00:16,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:00:16,034 INFO L93 Difference]: Finished difference Result 80231 states and 108973 transitions. [2021-11-07 13:00:16,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 13:00:16,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 95 [2021-11-07 13:00:16,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:00:16,243 INFO L225 Difference]: With dead ends: 80231 [2021-11-07 13:00:16,243 INFO L226 Difference]: Without dead ends: 40198 [2021-11-07 13:00:16,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.93ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:00:16,320 INFO L933 BasicCegarLoop]: 2464 mSDtfsCounter, 19 mSDsluCounter, 4908 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2092.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 7372 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.93ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2218.34ms IncrementalHoareTripleChecker+Time [2021-11-07 13:00:16,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 7372 Invalid, 15 Unknown, 0 Unchecked, 12.93ms Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2218.34ms Time] [2021-11-07 13:00:16,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40198 states. [2021-11-07 13:00:17,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40198 to 40161. [2021-11-07 13:00:17,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40161 states, 39267 states have (on average 1.3389869355947743) internal successors, (52578), 39375 states have internal predecessors, (52578), 600 states have call successors, (600), 288 states have call predecessors, (600), 288 states have return successors, (1344), 529 states have call predecessors, (1344), 600 states have call successors, (1344) [2021-11-07 13:00:17,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40161 states to 40161 states and 54522 transitions. [2021-11-07 13:00:17,758 INFO L78 Accepts]: Start accepts. Automaton has 40161 states and 54522 transitions. Word has length 95 [2021-11-07 13:00:17,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:00:17,759 INFO L470 AbstractCegarLoop]: Abstraction has 40161 states and 54522 transitions. [2021-11-07 13:00:17,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:17,759 INFO L276 IsEmpty]: Start isEmpty. Operand 40161 states and 54522 transitions. [2021-11-07 13:00:17,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-07 13:00:17,768 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:00:17,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:00:17,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 13:00:17,768 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 13:00:17,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:00:17,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2032334625, now seen corresponding path program 1 times [2021-11-07 13:00:17,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:00:17,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708833389] [2021-11-07 13:00:17,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:00:17,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:00:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:17,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:00:17,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:00:17,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708833389] [2021-11-07 13:00:17,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708833389] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:00:18,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:00:18,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:00:18,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159411153] [2021-11-07 13:00:18,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:00:18,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:00:18,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:00:18,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:00:18,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:18,002 INFO L87 Difference]: Start difference. First operand 40161 states and 54522 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:20,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:00:20,151 INFO L93 Difference]: Finished difference Result 102385 states and 138000 transitions. [2021-11-07 13:00:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:00:20,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-07 13:00:20,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:00:20,347 INFO L225 Difference]: With dead ends: 102385 [2021-11-07 13:00:20,347 INFO L226 Difference]: Without dead ends: 62355 [2021-11-07 13:00:20,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:20,413 INFO L933 BasicCegarLoop]: 2687 mSDtfsCounter, 1748 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 300.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 4917 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.35ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 367.80ms IncrementalHoareTripleChecker+Time [2021-11-07 13:00:20,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1748 Valid, 4917 Invalid, 86 Unknown, 0 Unchecked, 9.35ms Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 367.80ms Time] [2021-11-07 13:00:20,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62355 states. [2021-11-07 13:00:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62355 to 62181. [2021-11-07 13:00:22,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62181 states, 60663 states have (on average 1.3210358867843661) internal successors, (80138), 60851 states have internal predecessors, (80138), 1008 states have call successors, (1008), 504 states have call predecessors, (1008), 504 states have return successors, (2256), 881 states have call predecessors, (2256), 1008 states have call successors, (2256) [2021-11-07 13:00:22,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62181 states to 62181 states and 83402 transitions. [2021-11-07 13:00:22,354 INFO L78 Accepts]: Start accepts. Automaton has 62181 states and 83402 transitions. Word has length 99 [2021-11-07 13:00:22,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:00:22,355 INFO L470 AbstractCegarLoop]: Abstraction has 62181 states and 83402 transitions. [2021-11-07 13:00:22,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:22,355 INFO L276 IsEmpty]: Start isEmpty. Operand 62181 states and 83402 transitions. [2021-11-07 13:00:22,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-07 13:00:22,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:00:22,364 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:00:22,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 13:00:22,364 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 13:00:22,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:00:22,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1623526599, now seen corresponding path program 1 times [2021-11-07 13:00:22,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:00:22,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571813684] [2021-11-07 13:00:22,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:00:22,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:00:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:22,634 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:00:22,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:00:22,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571813684] [2021-11-07 13:00:22,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571813684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:00:22,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:00:22,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:00:22,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360578441] [2021-11-07 13:00:22,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:00:22,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:00:22,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:00:22,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:00:22,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:22,636 INFO L87 Difference]: Start difference. First operand 62181 states and 83402 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:24,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:00:27,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:00:27,372 INFO L93 Difference]: Finished difference Result 153047 states and 205476 transitions. [2021-11-07 13:00:27,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:00:27,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2021-11-07 13:00:27,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:00:27,652 INFO L225 Difference]: With dead ends: 153047 [2021-11-07 13:00:27,652 INFO L226 Difference]: Without dead ends: 90997 [2021-11-07 13:00:27,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:00:27,794 INFO L933 BasicCegarLoop]: 3900 mSDtfsCounter, 2248 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2170.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 6235 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.72ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2333.64ms IncrementalHoareTripleChecker+Time [2021-11-07 13:00:27,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2248 Valid, 6235 Invalid, 20 Unknown, 0 Unchecked, 12.72ms Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2333.64ms Time] [2021-11-07 13:00:27,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90997 states. [2021-11-07 13:00:30,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90997 to 90945. [2021-11-07 13:00:30,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90945 states, 88779 states have (on average 1.3220468804559637) internal successors, (117370), 89039 states have internal predecessors, (117370), 1440 states have call successors, (1440), 720 states have call predecessors, (1440), 720 states have return successors, (3228), 1265 states have call predecessors, (3228), 1440 states have call successors, (3228) [2021-11-07 13:00:30,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90945 states to 90945 states and 122038 transitions. [2021-11-07 13:00:30,730 INFO L78 Accepts]: Start accepts. Automaton has 90945 states and 122038 transitions. Word has length 99 [2021-11-07 13:00:30,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:00:30,730 INFO L470 AbstractCegarLoop]: Abstraction has 90945 states and 122038 transitions. [2021-11-07 13:00:30,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:00:30,731 INFO L276 IsEmpty]: Start isEmpty. Operand 90945 states and 122038 transitions. [2021-11-07 13:00:30,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 13:00:30,739 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:00:30,739 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 13:00:30,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 13:00:30,739 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 13:00:30,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:00:30,740 INFO L85 PathProgramCache]: Analyzing trace with hash -716096722, now seen corresponding path program 1 times [2021-11-07 13:00:30,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:00:30,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122651294] [2021-11-07 13:00:30,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:00:30,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:00:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:31,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-07 13:00:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:31,105 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 13:00:31,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:00:31,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122651294] [2021-11-07 13:00:31,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122651294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:00:31,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:00:31,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 13:00:31,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677019235] [2021-11-07 13:00:31,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:00:31,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 13:00:31,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:00:31,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 13:00:31,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 13:00:31,108 INFO L87 Difference]: Start difference. First operand 90945 states and 122038 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 13:00:33,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:00:35,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:00:40,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:00:40,801 INFO L93 Difference]: Finished difference Result 143584 states and 195094 transitions. [2021-11-07 13:00:40,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 13:00:40,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2021-11-07 13:00:40,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:00:41,325 INFO L225 Difference]: With dead ends: 143584 [2021-11-07 13:00:41,325 INFO L226 Difference]: Without dead ends: 143576 [2021-11-07 13:00:41,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 90.40ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-07 13:00:41,388 INFO L933 BasicCegarLoop]: 4688 mSDtfsCounter, 5778 mSDsluCounter, 9159 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 393 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5795.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5778 SdHoareTripleChecker+Valid, 13847 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.17ms SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6325.63ms IncrementalHoareTripleChecker+Time [2021-11-07 13:00:41,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5778 Valid, 13847 Invalid, 1134 Unknown, 0 Unchecked, 29.17ms Time], IncrementalHoareTripleChecker [393 Valid, 739 Invalid, 2 Unknown, 0 Unchecked, 6325.63ms Time] [2021-11-07 13:00:41,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143576 states. [2021-11-07 13:00:45,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143576 to 140061. [2021-11-07 13:00:45,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140061 states, 135963 states have (on average 1.320050307804329) internal successors, (179478), 136603 states have internal predecessors, (179478), 2292 states have call successors, (2292), 1080 states have call predecessors, (2292), 1800 states have return successors, (7740), 2537 states have call predecessors, (7740), 2292 states have call successors, (7740) [2021-11-07 13:00:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140061 states to 140061 states and 189510 transitions. [2021-11-07 13:00:46,141 INFO L78 Accepts]: Start accepts. Automaton has 140061 states and 189510 transitions. Word has length 101 [2021-11-07 13:00:46,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:00:46,142 INFO L470 AbstractCegarLoop]: Abstraction has 140061 states and 189510 transitions. [2021-11-07 13:00:46,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 13:00:46,142 INFO L276 IsEmpty]: Start isEmpty. Operand 140061 states and 189510 transitions. [2021-11-07 13:00:46,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 13:00:46,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:00:46,150 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 13:00:46,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 13:00:46,151 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 13:00:46,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:00:46,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1533745172, now seen corresponding path program 1 times [2021-11-07 13:00:46,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:00:46,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735660976] [2021-11-07 13:00:46,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:00:46,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:00:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-07 13:00:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:00:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 13:00:46,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:00:46,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735660976] [2021-11-07 13:00:46,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735660976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:00:46,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:00:46,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 13:00:46,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701657669] [2021-11-07 13:00:46,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:00:46,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 13:00:46,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:00:46,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 13:00:46,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 13:00:46,681 INFO L87 Difference]: Start difference. First operand 140061 states and 189510 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 13:00:48,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:00:51,033 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:00:55,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:00:58,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:01:01,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:01:08,054 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:01:10,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:01:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:01:20,020 INFO L93 Difference]: Finished difference Result 466302 states and 632518 transitions. [2021-11-07 13:01:20,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 13:01:20,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2021-11-07 13:01:20,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:01:21,626 INFO L225 Difference]: With dead ends: 466302 [2021-11-07 13:01:21,626 INFO L226 Difference]: Without dead ends: 407663 [2021-11-07 13:01:21,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 92.03ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-07 13:01:21,855 INFO L933 BasicCegarLoop]: 6177 mSDtfsCounter, 16511 mSDsluCounter, 26972 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 194 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22255.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16526 SdHoareTripleChecker+Valid, 33149 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 76.23ms SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23858.06ms IncrementalHoareTripleChecker+Time [2021-11-07 13:01:21,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16526 Valid, 33149 Invalid, 2108 Unknown, 0 Unchecked, 76.23ms Time], IncrementalHoareTripleChecker [194 Valid, 1907 Invalid, 7 Unknown, 0 Unchecked, 23858.06ms Time] [2021-11-07 13:01:22,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407663 states.