./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_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 234112184b071eb42f340136dfce6e1a552d788d086baea007a05a3140f2d157 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 08:43:48,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 08:43:48,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 08:43:48,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 08:43:48,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 08:43:48,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 08:43:48,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 08:43:48,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 08:43:48,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 08:43:48,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 08:43:48,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 08:43:48,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 08:43:48,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 08:43:48,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 08:43:48,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 08:43:48,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 08:43:48,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 08:43:48,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 08:43:48,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 08:43:48,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 08:43:48,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 08:43:48,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 08:43:48,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 08:43:48,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 08:43:48,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 08:43:48,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 08:43:48,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 08:43:48,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 08:43:48,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 08:43:48,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 08:43:48,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 08:43:48,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 08:43:48,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 08:43:48,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 08:43:48,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 08:43:48,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 08:43:48,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 08:43:48,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 08:43:48,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 08:43:48,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 08:43:48,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 08:43:48,246 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 08:43:48,259 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 08:43:48,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 08:43:48,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 08:43:48,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 08:43:48,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 08:43:48,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 08:43:48,261 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 08:43:48,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 08:43:48,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 08:43:48,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 08:43:48,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 08:43:48,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 08:43:48,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 08:43:48,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 08:43:48,263 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 08:43:48,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 08:43:48,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 08:43:48,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 08:43:48,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 08:43:48,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:43:48,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 08:43:48,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 08:43:48,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 08:43:48,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 08:43:48,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 08:43:48,264 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 08:43:48,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 08:43:48,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 08:43:48,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 08:43:48,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234112184b071eb42f340136dfce6e1a552d788d086baea007a05a3140f2d157 [2021-11-04 08:43:48,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 08:43:48,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 08:43:48,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 08:43:48,491 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 08:43:48,492 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 08:43:48,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2021-11-04 08:43:48,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8fffaf9c/c6e2803941d448fd81892031a37e54af/FLAG5ef30b640 [2021-11-04 08:43:49,091 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 08:43:49,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2021-11-04 08:43:49,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8fffaf9c/c6e2803941d448fd81892031a37e54af/FLAG5ef30b640 [2021-11-04 08:43:49,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8fffaf9c/c6e2803941d448fd81892031a37e54af [2021-11-04 08:43:49,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 08:43:49,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 08:43:49,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 08:43:49,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 08:43:49,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 08:43:49,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:43:49" (1/1) ... [2021-11-04 08:43:49,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f092fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:49, skipping insertion in model container [2021-11-04 08:43:49,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:43:49" (1/1) ... [2021-11-04 08:43:49,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 08:43:49,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 08:43:50,919 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[254896,254909] [2021-11-04 08:43:50,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:43:51,042 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 08:43:51,294 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[254896,254909] [2021-11-04 08:43:51,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:43:51,419 INFO L208 MainTranslator]: Completed translation [2021-11-04 08:43:51,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:51 WrapperNode [2021-11-04 08:43:51,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 08:43:51,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 08:43:51,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 08:43:51,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 08:43:51,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:51" (1/1) ... [2021-11-04 08:43:51,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:51" (1/1) ... [2021-11-04 08:43:51,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 08:43:51,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 08:43:51,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 08:43:51,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 08:43:51,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:51" (1/1) ... [2021-11-04 08:43:51,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:51" (1/1) ... [2021-11-04 08:43:51,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:51" (1/1) ... [2021-11-04 08:43:51,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:51" (1/1) ... [2021-11-04 08:43:52,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:51" (1/1) ... [2021-11-04 08:43:52,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:51" (1/1) ... [2021-11-04 08:43:52,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:51" (1/1) ... [2021-11-04 08:43:52,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 08:43:52,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 08:43:52,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 08:43:52,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 08:43:52,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:51" (1/1) ... [2021-11-04 08:43:52,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:43:52,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 08:43:52,512 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) [2021-11-04 08:43:52,558 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 [2021-11-04 08:43:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-04 08:43:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-04 08:43:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 08:43:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 08:43:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 08:43:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-04 08:43:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 08:43:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 08:43:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 08:43:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 08:43:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 08:43:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 08:43:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 08:43:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 08:43:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 08:43:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 08:43:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 08:43:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 08:43:52,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 08:44:02,028 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 08:44:02,028 INFO L299 CfgBuilder]: Removed 1993 assume(true) statements. [2021-11-04 08:44:02,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:44:02 BoogieIcfgContainer [2021-11-04 08:44:02,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 08:44:02,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 08:44:02,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 08:44:02,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 08:44:02,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 08:43:49" (1/3) ... [2021-11-04 08:44:02,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43cee5b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:44:02, skipping insertion in model container [2021-11-04 08:44:02,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:43:51" (2/3) ... [2021-11-04 08:44:02,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43cee5b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:44:02, skipping insertion in model container [2021-11-04 08:44:02,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:44:02" (3/3) ... [2021-11-04 08:44:02,037 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2021-11-04 08:44:02,043 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 08:44:02,044 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-04 08:44:02,086 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 08:44:02,091 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 [2021-11-04 08:44:02,092 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-04 08:44:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 2026 states, 2006 states have (on average 1.4087736789631107) internal successors, (2826), 2025 states have internal predecessors, (2826), 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) [2021-11-04 08:44:02,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-04 08:44:02,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:44:02,141 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, 1, 1, 1, 1] [2021-11-04 08:44:02,142 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:44:02,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:44:02,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1062845019, now seen corresponding path program 1 times [2021-11-04 08:44:02,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:44:02,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820410633] [2021-11-04 08:44:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:44:02,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:44:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:44:02,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 08:44:02,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:44:02,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820410633] [2021-11-04 08:44:02,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820410633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:44:02,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:44:02,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 08:44:02,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810856852] [2021-11-04 08:44:02,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:44:03,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 08:44:03,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:44:03,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 08:44:03,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 08:44:03,028 INFO L87 Difference]: Start difference. First operand has 2026 states, 2006 states have (on average 1.4087736789631107) internal successors, (2826), 2025 states have internal predecessors, (2826), 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) Second operand has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 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) [2021-11-04 08:44:05,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:10,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:14,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:19,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:21,605 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 [] [2021-11-04 08:44:26,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:44:26,732 INFO L93 Difference]: Finished difference Result 4048 states and 5647 transitions. [2021-11-04 08:44:26,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 08:44:26,735 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 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 103 [2021-11-04 08:44:26,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:44:26,762 INFO L225 Difference]: With dead ends: 4048 [2021-11-04 08:44:26,763 INFO L226 Difference]: Without dead ends: 2009 [2021-11-04 08:44:26,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 08:44:26,777 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21860.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23362.92ms IncrementalHoareTripleChecker+Time [2021-11-04 08:44:26,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 2731 Unknown, 0 Unchecked, 20.34ms Time], IncrementalHoareTripleChecker [0 Valid, 2726 Invalid, 5 Unknown, 0 Unchecked, 23362.92ms Time] [2021-11-04 08:44:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2021-11-04 08:44:26,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 2009. [2021-11-04 08:44:26,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2009 states, 1990 states have (on average 1.3633165829145728) internal successors, (2713), 2008 states have internal predecessors, (2713), 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) [2021-11-04 08:44:26,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 2713 transitions. [2021-11-04 08:44:26,886 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 2713 transitions. Word has length 103 [2021-11-04 08:44:26,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:44:26,887 INFO L470 AbstractCegarLoop]: Abstraction has 2009 states and 2713 transitions. [2021-11-04 08:44:26,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 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) [2021-11-04 08:44:26,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 2713 transitions. [2021-11-04 08:44:26,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-04 08:44:26,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:44:26,890 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, 1, 1, 1, 1] [2021-11-04 08:44:26,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 08:44:26,891 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:44:26,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:44:26,892 INFO L85 PathProgramCache]: Analyzing trace with hash 666457411, now seen corresponding path program 1 times [2021-11-04 08:44:26,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:44:26,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785266159] [2021-11-04 08:44:26,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:44:26,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:44:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:44:27,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 08:44:27,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:44:27,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785266159] [2021-11-04 08:44:27,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785266159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:44:27,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:44:27,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:44:27,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41794343] [2021-11-04 08:44:27,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:44:27,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:44:27,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:44:27,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:44:27,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:44:27,506 INFO L87 Difference]: Start difference. First operand 2009 states and 2713 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2021-11-04 08:44:29,619 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:38,824 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:49,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:44:52,676 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 [] [2021-11-04 08:45:03,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:45:03,555 INFO L93 Difference]: Finished difference Result 3965 states and 5379 transitions. [2021-11-04 08:45:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:45:03,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 103 [2021-11-04 08:45:03,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:45:03,562 INFO L225 Difference]: With dead ends: 3965 [2021-11-04 08:45:03,562 INFO L226 Difference]: Without dead ends: 2016 [2021-11-04 08:45:03,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:45:03,565 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 2670 mSDsCounter, 0 mSdLazyCounter, 5411 mSolverCounterSat, 12 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33500.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.12ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 5411 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35651.26ms IncrementalHoareTripleChecker+Time [2021-11-04 08:45:03,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 5427 Unknown, 0 Unchecked, 42.12ms Time], IncrementalHoareTripleChecker [12 Valid, 5411 Invalid, 4 Unknown, 0 Unchecked, 35651.26ms Time] [2021-11-04 08:45:03,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2016 states. [2021-11-04 08:45:03,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2016 to 2016. [2021-11-04 08:45:03,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 1997 states have (on average 1.3620430645968953) internal successors, (2720), 2015 states have internal predecessors, (2720), 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) [2021-11-04 08:45:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2720 transitions. [2021-11-04 08:45:03,637 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2720 transitions. Word has length 103 [2021-11-04 08:45:03,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:45:03,645 INFO L470 AbstractCegarLoop]: Abstraction has 2016 states and 2720 transitions. [2021-11-04 08:45:03,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2021-11-04 08:45:03,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2720 transitions. [2021-11-04 08:45:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-04 08:45:03,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:45:03,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:45:03,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 08:45:03,652 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:45:03,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:45:03,652 INFO L85 PathProgramCache]: Analyzing trace with hash -281864819, now seen corresponding path program 1 times [2021-11-04 08:45:03,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:45:03,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128496235] [2021-11-04 08:45:03,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:45:03,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:45:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:45:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-04 08:45:04,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:45:04,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128496235] [2021-11-04 08:45:04,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128496235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:45:04,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:45:04,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:45:04,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612364334] [2021-11-04 08:45:04,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:45:04,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:45:04,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:45:04,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:45:04,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:45:04,120 INFO L87 Difference]: Start difference. First operand 2016 states and 2720 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2021-11-04 08:45:06,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:45:14,916 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:45:25,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:45:27,684 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 [] [2021-11-04 08:45:38,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:45:38,340 INFO L93 Difference]: Finished difference Result 3969 states and 5376 transitions. [2021-11-04 08:45:38,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:45:38,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 110 [2021-11-04 08:45:38,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:45:38,347 INFO L225 Difference]: With dead ends: 3969 [2021-11-04 08:45:38,347 INFO L226 Difference]: Without dead ends: 2017 [2021-11-04 08:45:38,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:45:38,351 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 2670 mSDsCounter, 0 mSdLazyCounter, 5417 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31837.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5417 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33952.40ms IncrementalHoareTripleChecker+Time [2021-11-04 08:45:38,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 5421 Unknown, 0 Unchecked, 34.36ms Time], IncrementalHoareTripleChecker [0 Valid, 5417 Invalid, 4 Unknown, 0 Unchecked, 33952.40ms Time] [2021-11-04 08:45:38,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2021-11-04 08:45:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 2017. [2021-11-04 08:45:38,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1998 states have (on average 1.3618618618618619) internal successors, (2721), 2016 states have internal predecessors, (2721), 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) [2021-11-04 08:45:38,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2721 transitions. [2021-11-04 08:45:38,382 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2721 transitions. Word has length 110 [2021-11-04 08:45:38,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:45:38,383 INFO L470 AbstractCegarLoop]: Abstraction has 2017 states and 2721 transitions. [2021-11-04 08:45:38,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2021-11-04 08:45:38,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2721 transitions. [2021-11-04 08:45:38,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-04 08:45:38,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:45:38,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:45:38,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 08:45:38,385 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:45:38,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:45:38,386 INFO L85 PathProgramCache]: Analyzing trace with hash -972886469, now seen corresponding path program 1 times [2021-11-04 08:45:38,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:45:38,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641752120] [2021-11-04 08:45:38,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:45:38,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:45:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:45:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 08:45:38,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:45:38,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641752120] [2021-11-04 08:45:38,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641752120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:45:38,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:45:38,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:45:38,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017835199] [2021-11-04 08:45:38,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:45:38,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:45:38,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:45:38,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:45:38,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:45:38,851 INFO L87 Difference]: Start difference. First operand 2017 states and 2721 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-04 08:45:40,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:45:46,087 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:45:50,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:45:53,396 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 [] [2021-11-04 08:46:15,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:46:15,318 INFO L93 Difference]: Finished difference Result 4948 states and 6745 transitions. [2021-11-04 08:46:15,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:46:15,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2021-11-04 08:46:15,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:46:15,331 INFO L225 Difference]: With dead ends: 4948 [2021-11-04 08:46:15,331 INFO L226 Difference]: Without dead ends: 3023 [2021-11-04 08:46:15,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:46:15,338 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1396 mSDsluCounter, 2686 mSDsCounter, 0 mSdLazyCounter, 5415 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33667.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.32ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5415 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36027.97ms IncrementalHoareTripleChecker+Time [2021-11-04 08:46:15,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1396 Valid, 0 Invalid, 5420 Unknown, 0 Unchecked, 50.32ms Time], IncrementalHoareTripleChecker [1 Valid, 5415 Invalid, 4 Unknown, 0 Unchecked, 36027.97ms Time] [2021-11-04 08:46:15,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2021-11-04 08:46:15,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 3007. [2021-11-04 08:46:15,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 2988 states have (on average 1.3761713520749665) internal successors, (4112), 3006 states have internal predecessors, (4112), 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) [2021-11-04 08:46:15,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 4112 transitions. [2021-11-04 08:46:15,414 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 4112 transitions. Word has length 111 [2021-11-04 08:46:15,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:46:15,414 INFO L470 AbstractCegarLoop]: Abstraction has 3007 states and 4112 transitions. [2021-11-04 08:46:15,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-04 08:46:15,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 4112 transitions. [2021-11-04 08:46:15,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-04 08:46:15,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:46:15,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:46:15,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 08:46:15,417 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:46:15,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:46:15,418 INFO L85 PathProgramCache]: Analyzing trace with hash 508178095, now seen corresponding path program 1 times [2021-11-04 08:46:15,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:46:15,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968736081] [2021-11-04 08:46:15,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:46:15,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:46:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:46:15,880 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 08:46:15,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:46:15,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968736081] [2021-11-04 08:46:15,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968736081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:46:15,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:46:15,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:46:15,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553689071] [2021-11-04 08:46:15,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:46:15,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:46:15,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:46:15,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:46:15,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:46:15,882 INFO L87 Difference]: Start difference. First operand 3007 states and 4112 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-04 08:46:18,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:46:22,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:46:27,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:46:30,119 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 [] [2021-11-04 08:46:58,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:46:58,355 INFO L93 Difference]: Finished difference Result 8219 states and 11268 transitions. [2021-11-04 08:46:58,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:46:58,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 112 [2021-11-04 08:46:58,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:46:58,374 INFO L225 Difference]: With dead ends: 8219 [2021-11-04 08:46:58,375 INFO L226 Difference]: Without dead ends: 5304 [2021-11-04 08:46:58,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:46:58,382 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2046 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 6379 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39151.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.83ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6379 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42031.25ms IncrementalHoareTripleChecker+Time [2021-11-04 08:46:58,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2046 Valid, 0 Invalid, 6384 Unknown, 0 Unchecked, 30.83ms Time], IncrementalHoareTripleChecker [1 Valid, 6379 Invalid, 4 Unknown, 0 Unchecked, 42031.25ms Time] [2021-11-04 08:46:58,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5304 states. [2021-11-04 08:46:58,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5304 to 5238. [2021-11-04 08:46:58,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5238 states, 5219 states have (on average 1.3801494539183752) internal successors, (7203), 5237 states have internal predecessors, (7203), 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) [2021-11-04 08:46:58,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5238 states to 5238 states and 7203 transitions. [2021-11-04 08:46:58,557 INFO L78 Accepts]: Start accepts. Automaton has 5238 states and 7203 transitions. Word has length 112 [2021-11-04 08:46:58,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:46:58,559 INFO L470 AbstractCegarLoop]: Abstraction has 5238 states and 7203 transitions. [2021-11-04 08:46:58,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-04 08:46:58,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5238 states and 7203 transitions. [2021-11-04 08:46:58,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-04 08:46:58,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:46:58,560 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:46:58,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 08:46:58,561 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:46:58,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:46:58,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1702952597, now seen corresponding path program 1 times [2021-11-04 08:46:58,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:46:58,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899696574] [2021-11-04 08:46:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:46:58,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:46:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:46:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 08:46:58,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:46:58,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899696574] [2021-11-04 08:46:58,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899696574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:46:58,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:46:58,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:46:58,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819646631] [2021-11-04 08:46:58,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:46:58,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:46:58,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:46:58,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:46:58,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:46:58,993 INFO L87 Difference]: Start difference. First operand 5238 states and 7203 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2021-11-04 08:47:01,100 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:47:04,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:47:16,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:47:25,530 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:47:28,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:47:45,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:47:45,118 INFO L93 Difference]: Finished difference Result 12630 states and 17290 transitions. [2021-11-04 08:47:45,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:47:45,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 116 [2021-11-04 08:47:45,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:47:45,142 INFO L225 Difference]: With dead ends: 12630 [2021-11-04 08:47:45,142 INFO L226 Difference]: Without dead ends: 7484 [2021-11-04 08:47:45,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:47:45,152 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1375 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 6679 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42558.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.06ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6679 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45664.57ms IncrementalHoareTripleChecker+Time [2021-11-04 08:47:45,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 0 Invalid, 6685 Unknown, 0 Unchecked, 33.06ms Time], IncrementalHoareTripleChecker [1 Valid, 6679 Invalid, 5 Unknown, 0 Unchecked, 45664.57ms Time] [2021-11-04 08:47:45,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7484 states. [2021-11-04 08:47:45,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7484 to 7452. [2021-11-04 08:47:45,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7452 states, 7433 states have (on average 1.3678191847168035) internal successors, (10167), 7451 states have internal predecessors, (10167), 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) [2021-11-04 08:47:45,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7452 states to 7452 states and 10167 transitions. [2021-11-04 08:47:45,305 INFO L78 Accepts]: Start accepts. Automaton has 7452 states and 10167 transitions. Word has length 116 [2021-11-04 08:47:45,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:47:45,306 INFO L470 AbstractCegarLoop]: Abstraction has 7452 states and 10167 transitions. [2021-11-04 08:47:45,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2021-11-04 08:47:45,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7452 states and 10167 transitions. [2021-11-04 08:47:45,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-04 08:47:45,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:47:45,309 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:47:45,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 08:47:45,310 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:47:45,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:47:45,310 INFO L85 PathProgramCache]: Analyzing trace with hash 441813651, now seen corresponding path program 1 times [2021-11-04 08:47:45,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:47:45,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083548602] [2021-11-04 08:47:45,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:47:45,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:47:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:47:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 08:47:45,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:47:45,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083548602] [2021-11-04 08:47:45,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083548602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:47:45,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:47:45,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:47:45,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862633184] [2021-11-04 08:47:45,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:47:45,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:47:45,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:47:45,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:47:45,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:47:45,784 INFO L87 Difference]: Start difference. First operand 7452 states and 10167 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-11-04 08:47:47,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:47:52,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:47:58,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:48:05,660 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:48:08,360 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 [] [2021-11-04 08:48:32,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:48:32,717 INFO L93 Difference]: Finished difference Result 21920 states and 29935 transitions. [2021-11-04 08:48:32,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:48:32,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 138 [2021-11-04 08:48:32,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:48:32,759 INFO L225 Difference]: With dead ends: 21920 [2021-11-04 08:48:32,759 INFO L226 Difference]: Without dead ends: 14560 [2021-11-04 08:48:32,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:48:32,775 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2346 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 5506 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41972.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2346 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5506 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46396.58ms IncrementalHoareTripleChecker+Time [2021-11-04 08:48:32,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2346 Valid, 0 Invalid, 5511 Unknown, 0 Unchecked, 31.54ms Time], IncrementalHoareTripleChecker [0 Valid, 5506 Invalid, 5 Unknown, 0 Unchecked, 46396.58ms Time] [2021-11-04 08:48:32,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14560 states. [2021-11-04 08:48:32,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14560 to 7350. [2021-11-04 08:48:32,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7350 states, 7331 states have (on average 1.3693902605374437) internal successors, (10039), 7349 states have internal predecessors, (10039), 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) [2021-11-04 08:48:32,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7350 states to 7350 states and 10039 transitions. [2021-11-04 08:48:32,998 INFO L78 Accepts]: Start accepts. Automaton has 7350 states and 10039 transitions. Word has length 138 [2021-11-04 08:48:32,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:48:32,999 INFO L470 AbstractCegarLoop]: Abstraction has 7350 states and 10039 transitions. [2021-11-04 08:48:32,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-11-04 08:48:32,999 INFO L276 IsEmpty]: Start isEmpty. Operand 7350 states and 10039 transitions. [2021-11-04 08:48:33,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-04 08:48:33,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:48:33,004 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:48:33,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 08:48:33,004 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:48:33,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:48:33,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1551963029, now seen corresponding path program 1 times [2021-11-04 08:48:33,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:48:33,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906883635] [2021-11-04 08:48:33,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:48:33,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:48:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:48:33,448 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 08:48:33,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:48:33,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906883635] [2021-11-04 08:48:33,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906883635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:48:33,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:48:33,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 08:48:33,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281949408] [2021-11-04 08:48:33,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:48:33,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 08:48:33,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:48:33,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 08:48:33,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 08:48:33,450 INFO L87 Difference]: Start difference. First operand 7350 states and 10039 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 08:48:35,626 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:48:41,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:48:55,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:49:10,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:49:14,056 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:49:34,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:49:34,556 INFO L93 Difference]: Finished difference Result 14591 states and 19960 transitions. [2021-11-04 08:49:34,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 08:49:34,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2021-11-04 08:49:34,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:49:34,570 INFO L225 Difference]: With dead ends: 14591 [2021-11-04 08:49:34,570 INFO L226 Difference]: Without dead ends: 7329 [2021-11-04 08:49:34,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 77.65ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 08:49:34,579 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 5407 mSDsCounter, 0 mSdLazyCounter, 8122 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55375.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8122 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60588.17ms IncrementalHoareTripleChecker+Time [2021-11-04 08:49:34,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 8127 Unknown, 0 Unchecked, 42.16ms Time], IncrementalHoareTripleChecker [0 Valid, 8122 Invalid, 5 Unknown, 0 Unchecked, 60588.17ms Time] [2021-11-04 08:49:34,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2021-11-04 08:49:34,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 7315. [2021-11-04 08:49:34,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7315 states, 7296 states have (on average 1.3704769736842106) internal successors, (9999), 7314 states have internal predecessors, (9999), 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) [2021-11-04 08:49:34,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7315 states to 7315 states and 9999 transitions. [2021-11-04 08:49:34,702 INFO L78 Accepts]: Start accepts. Automaton has 7315 states and 9999 transitions. Word has length 147 [2021-11-04 08:49:34,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:49:34,702 INFO L470 AbstractCegarLoop]: Abstraction has 7315 states and 9999 transitions. [2021-11-04 08:49:34,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 08:49:34,702 INFO L276 IsEmpty]: Start isEmpty. Operand 7315 states and 9999 transitions. [2021-11-04 08:49:34,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-04 08:49:34,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:49:34,705 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:49:34,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 08:49:34,706 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:49:34,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:49:34,706 INFO L85 PathProgramCache]: Analyzing trace with hash 517843941, now seen corresponding path program 1 times [2021-11-04 08:49:34,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:49:34,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720288320] [2021-11-04 08:49:34,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:49:34,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:49:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:49:35,131 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-04 08:49:35,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:49:35,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720288320] [2021-11-04 08:49:35,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720288320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:49:35,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:49:35,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:49:35,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091082093] [2021-11-04 08:49:35,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:49:35,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:49:35,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:49:35,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:49:35,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:49:35,133 INFO L87 Difference]: Start difference. First operand 7315 states and 9999 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2021-11-04 08:49:37,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:49:41,396 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:49:56,019 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:49:59,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:50:19,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:50:19,289 INFO L93 Difference]: Finished difference Result 16630 states and 22849 transitions. [2021-11-04 08:50:19,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:50:19,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 150 [2021-11-04 08:50:19,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:50:19,324 INFO L225 Difference]: With dead ends: 16630 [2021-11-04 08:50:19,324 INFO L226 Difference]: Without dead ends: 9407 [2021-11-04 08:50:19,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:50:19,337 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1363 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 5411 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39618.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.57ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5411 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43730.83ms IncrementalHoareTripleChecker+Time [2021-11-04 08:50:19,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1363 Valid, 0 Invalid, 5416 Unknown, 0 Unchecked, 30.57ms Time], IncrementalHoareTripleChecker [1 Valid, 5411 Invalid, 4 Unknown, 0 Unchecked, 43730.83ms Time] [2021-11-04 08:50:19,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9407 states. [2021-11-04 08:50:19,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9407 to 7354. [2021-11-04 08:50:19,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7354 states, 7335 states have (on average 1.369052488070893) internal successors, (10042), 7353 states have internal predecessors, (10042), 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) [2021-11-04 08:50:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7354 states to 7354 states and 10042 transitions. [2021-11-04 08:50:19,480 INFO L78 Accepts]: Start accepts. Automaton has 7354 states and 10042 transitions. Word has length 150 [2021-11-04 08:50:19,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:50:19,480 INFO L470 AbstractCegarLoop]: Abstraction has 7354 states and 10042 transitions. [2021-11-04 08:50:19,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2021-11-04 08:50:19,481 INFO L276 IsEmpty]: Start isEmpty. Operand 7354 states and 10042 transitions. [2021-11-04 08:50:19,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-04 08:50:19,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:50:19,484 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:50:19,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 08:50:19,484 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:50:19,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:50:19,484 INFO L85 PathProgramCache]: Analyzing trace with hash -523819451, now seen corresponding path program 1 times [2021-11-04 08:50:19,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:50:19,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248582044] [2021-11-04 08:50:19,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:50:19,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:50:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:50:20,055 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-04 08:50:20,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:50:20,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248582044] [2021-11-04 08:50:20,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248582044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:50:20,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:50:20,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 08:50:20,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264502760] [2021-11-04 08:50:20,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:50:20,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:50:20,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:50:20,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:50:20,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:50:20,057 INFO L87 Difference]: Start difference. First operand 7354 states and 10042 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 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) [2021-11-04 08:50:22,236 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:50:25,986 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:50:36,383 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:50:39,115 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:50:53,498 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 [] [2021-11-04 08:51:06,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:51:06,037 INFO L93 Difference]: Finished difference Result 13278 states and 18230 transitions. [2021-11-04 08:51:06,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:51:06,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 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 151 [2021-11-04 08:51:06,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:51:06,061 INFO L225 Difference]: With dead ends: 13278 [2021-11-04 08:51:06,061 INFO L226 Difference]: Without dead ends: 13254 [2021-11-04 08:51:06,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:51:06,068 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2094 mSDsluCounter, 2354 mSDsCounter, 0 mSdLazyCounter, 5102 mSolverCounterSat, 30 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40716.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.01ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 5102 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45522.22ms IncrementalHoareTripleChecker+Time [2021-11-04 08:51:06,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2094 Valid, 0 Invalid, 5137 Unknown, 0 Unchecked, 31.01ms Time], IncrementalHoareTripleChecker [30 Valid, 5102 Invalid, 5 Unknown, 0 Unchecked, 45522.22ms Time] [2021-11-04 08:51:06,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13254 states. [2021-11-04 08:51:06,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13254 to 12968. [2021-11-04 08:51:06,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12968 states, 12952 states have (on average 1.3727609635577518) internal successors, (17780), 12967 states have internal predecessors, (17780), 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) [2021-11-04 08:51:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12968 states to 12968 states and 17780 transitions. [2021-11-04 08:51:06,315 INFO L78 Accepts]: Start accepts. Automaton has 12968 states and 17780 transitions. Word has length 151 [2021-11-04 08:51:06,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:51:06,316 INFO L470 AbstractCegarLoop]: Abstraction has 12968 states and 17780 transitions. [2021-11-04 08:51:06,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 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) [2021-11-04 08:51:06,316 INFO L276 IsEmpty]: Start isEmpty. Operand 12968 states and 17780 transitions. [2021-11-04 08:51:06,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-04 08:51:06,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:51:06,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:51:06,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-04 08:51:06,322 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:51:06,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:51:06,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1717729008, now seen corresponding path program 1 times [2021-11-04 08:51:06,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:51:06,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523303812] [2021-11-04 08:51:06,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:51:06,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:51:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:51:06,808 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 08:51:06,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:51:06,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523303812] [2021-11-04 08:51:06,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523303812] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:51:06,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:51:06,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:51:06,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897692748] [2021-11-04 08:51:06,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:51:06,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:51:06,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:51:06,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:51:06,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:51:06,809 INFO L87 Difference]: Start difference. First operand 12968 states and 17780 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2021-11-04 08:51:08,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:51:13,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:51:21,915 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:51:31,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:51:39,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:51:51,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:51:51,706 INFO L93 Difference]: Finished difference Result 30067 states and 41300 transitions. [2021-11-04 08:51:51,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:51:51,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 156 [2021-11-04 08:51:51,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:51:51,734 INFO L225 Difference]: With dead ends: 30067 [2021-11-04 08:51:51,735 INFO L226 Difference]: Without dead ends: 17191 [2021-11-04 08:51:51,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:51:51,756 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1832 mSDsluCounter, 2202 mSDsCounter, 0 mSdLazyCounter, 5069 mSolverCounterSat, 54 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39548.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1832 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.75ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 5069 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44332.20ms IncrementalHoareTripleChecker+Time [2021-11-04 08:51:51,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1832 Valid, 0 Invalid, 5128 Unknown, 0 Unchecked, 29.75ms Time], IncrementalHoareTripleChecker [54 Valid, 5069 Invalid, 5 Unknown, 0 Unchecked, 44332.20ms Time] [2021-11-04 08:51:51,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17191 states. [2021-11-04 08:51:52,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17191 to 17086. [2021-11-04 08:51:52,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17086 states, 17070 states have (on average 1.3655536028119508) internal successors, (23310), 17085 states have internal predecessors, (23310), 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) [2021-11-04 08:51:52,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17086 states to 17086 states and 23310 transitions. [2021-11-04 08:51:52,067 INFO L78 Accepts]: Start accepts. Automaton has 17086 states and 23310 transitions. Word has length 156 [2021-11-04 08:51:52,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:51:52,068 INFO L470 AbstractCegarLoop]: Abstraction has 17086 states and 23310 transitions. [2021-11-04 08:51:52,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2021-11-04 08:51:52,068 INFO L276 IsEmpty]: Start isEmpty. Operand 17086 states and 23310 transitions. [2021-11-04 08:51:52,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-04 08:51:52,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:51:52,071 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:51:52,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-04 08:51:52,071 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:51:52,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:51:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1521655032, now seen corresponding path program 1 times [2021-11-04 08:51:52,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:51:52,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354009004] [2021-11-04 08:51:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:51:52,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:51:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:51:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 08:51:52,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:51:52,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354009004] [2021-11-04 08:51:52,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354009004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:51:52,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:51:52,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:51:52,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836760314] [2021-11-04 08:51:52,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:51:52,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:51:52,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:51:52,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:51:52,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:51:52,506 INFO L87 Difference]: Start difference. First operand 17086 states and 23310 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2021-11-04 08:51:54,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:51:59,341 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:52:06,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:52:14,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:52:26,242 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:52:35,204 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:52:45,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:52:45,476 INFO L93 Difference]: Finished difference Result 38602 states and 53043 transitions. [2021-11-04 08:52:45,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:52:45,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 157 [2021-11-04 08:52:45,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:52:45,513 INFO L225 Difference]: With dead ends: 38602 [2021-11-04 08:52:45,513 INFO L226 Difference]: Without dead ends: 21608 [2021-11-04 08:52:45,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:52:45,539 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1931 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 6179 mSolverCounterSat, 9 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46661.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.20ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 6179 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52324.32ms IncrementalHoareTripleChecker+Time [2021-11-04 08:52:45,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1931 Valid, 0 Invalid, 6194 Unknown, 0 Unchecked, 34.20ms Time], IncrementalHoareTripleChecker [9 Valid, 6179 Invalid, 6 Unknown, 0 Unchecked, 52324.32ms Time] [2021-11-04 08:52:45,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2021-11-04 08:52:45,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 21554. [2021-11-04 08:52:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21554 states, 21538 states have (on average 1.3782616770359364) internal successors, (29685), 21553 states have internal predecessors, (29685), 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) [2021-11-04 08:52:45,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21554 states to 21554 states and 29685 transitions. [2021-11-04 08:52:45,938 INFO L78 Accepts]: Start accepts. Automaton has 21554 states and 29685 transitions. Word has length 157 [2021-11-04 08:52:45,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:52:45,938 INFO L470 AbstractCegarLoop]: Abstraction has 21554 states and 29685 transitions. [2021-11-04 08:52:45,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2021-11-04 08:52:45,938 INFO L276 IsEmpty]: Start isEmpty. Operand 21554 states and 29685 transitions. [2021-11-04 08:52:45,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-04 08:52:45,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:52:45,944 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:52:45,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-04 08:52:45,945 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:52:45,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:52:45,945 INFO L85 PathProgramCache]: Analyzing trace with hash -644468503, now seen corresponding path program 1 times [2021-11-04 08:52:45,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:52:45,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043507491] [2021-11-04 08:52:45,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:52:45,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:52:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:52:46,568 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-04 08:52:46,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:52:46,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043507491] [2021-11-04 08:52:46,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043507491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:52:46,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:52:46,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 08:52:46,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458916252] [2021-11-04 08:52:46,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:52:46,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 08:52:46,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:52:46,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 08:52:46,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 08:52:46,569 INFO L87 Difference]: Start difference. First operand 21554 states and 29685 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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) [2021-11-04 08:52:48,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:52:54,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:53:10,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:53:36,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:54:07,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:54:07,384 INFO L93 Difference]: Finished difference Result 64190 states and 88465 transitions. [2021-11-04 08:54:07,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 08:54:07,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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 167 [2021-11-04 08:54:07,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:54:07,458 INFO L225 Difference]: With dead ends: 64190 [2021-11-04 08:54:07,458 INFO L226 Difference]: Without dead ends: 42728 [2021-11-04 08:54:07,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 98.23ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 08:54:07,484 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4093 mSDsluCounter, 5934 mSDsCounter, 0 mSdLazyCounter, 10979 mSolverCounterSat, 11 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72029.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4093 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 106.26ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 10979 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79586.98ms IncrementalHoareTripleChecker+Time [2021-11-04 08:54:07,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4093 Valid, 0 Invalid, 10994 Unknown, 0 Unchecked, 106.26ms Time], IncrementalHoareTripleChecker [11 Valid, 10979 Invalid, 4 Unknown, 0 Unchecked, 79586.98ms Time] [2021-11-04 08:54:07,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42728 states. [2021-11-04 08:54:08,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42728 to 21578. [2021-11-04 08:54:08,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21578 states, 21562 states have (on average 1.3778406455801873) internal successors, (29709), 21577 states have internal predecessors, (29709), 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) [2021-11-04 08:54:08,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21578 states to 21578 states and 29709 transitions. [2021-11-04 08:54:08,066 INFO L78 Accepts]: Start accepts. Automaton has 21578 states and 29709 transitions. Word has length 167 [2021-11-04 08:54:08,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:54:08,067 INFO L470 AbstractCegarLoop]: Abstraction has 21578 states and 29709 transitions. [2021-11-04 08:54:08,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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) [2021-11-04 08:54:08,067 INFO L276 IsEmpty]: Start isEmpty. Operand 21578 states and 29709 transitions. [2021-11-04 08:54:08,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-04 08:54:08,075 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:54:08,075 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:54:08,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-04 08:54:08,076 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:54:08,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:54:08,076 INFO L85 PathProgramCache]: Analyzing trace with hash 391713777, now seen corresponding path program 1 times [2021-11-04 08:54:08,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:54:08,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854368303] [2021-11-04 08:54:08,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:54:08,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:54:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:54:08,764 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-04 08:54:08,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:54:08,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854368303] [2021-11-04 08:54:08,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854368303] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 08:54:08,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124169697] [2021-11-04 08:54:08,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:54:08,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 08:54:08,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 08:54:08,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 08:54:08,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-04 08:54:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:54:10,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 6590 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-04 08:54:10,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 08:54:11,238 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-04 08:54:11,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-04 08:54:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-04 08:54:12,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124169697] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-04 08:54:12,074 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-04 08:54:12,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-11-04 08:54:12,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36808833] [2021-11-04 08:54:12,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-04 08:54:12,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-04 08:54:12,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:54:12,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-04 08:54:12,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-04 08:54:12,078 INFO L87 Difference]: Start difference. First operand 21578 states and 29709 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 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) [2021-11-04 08:54:14,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:54:20,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:54:37,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:54:58,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:55:18,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:55:18,818 INFO L93 Difference]: Finished difference Result 43327 states and 59820 transitions. [2021-11-04 08:55:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-04 08:55:18,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 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 176 [2021-11-04 08:55:18,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:55:18,945 INFO L225 Difference]: With dead ends: 43327 [2021-11-04 08:55:18,945 INFO L226 Difference]: Without dead ends: 21810 [2021-11-04 08:55:18,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 276.06ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-04 08:55:18,973 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 5324 mSDsCounter, 0 mSdLazyCounter, 8122 mSolverCounterSat, 129 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56601.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.39ms SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 8122 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65953.84ms IncrementalHoareTripleChecker+Time [2021-11-04 08:55:18,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 8255 Unknown, 0 Unchecked, 45.39ms Time], IncrementalHoareTripleChecker [129 Valid, 8122 Invalid, 4 Unknown, 0 Unchecked, 65953.84ms Time] [2021-11-04 08:55:18,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21810 states. [2021-11-04 08:55:19,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21810 to 21810. [2021-11-04 08:55:19,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21810 states, 21794 states have (on average 1.3738184821510508) internal successors, (29941), 21809 states have internal predecessors, (29941), 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) [2021-11-04 08:55:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21810 states to 21810 states and 29941 transitions. [2021-11-04 08:55:19,411 INFO L78 Accepts]: Start accepts. Automaton has 21810 states and 29941 transitions. Word has length 176 [2021-11-04 08:55:19,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:55:19,411 INFO L470 AbstractCegarLoop]: Abstraction has 21810 states and 29941 transitions. [2021-11-04 08:55:19,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 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) [2021-11-04 08:55:19,412 INFO L276 IsEmpty]: Start isEmpty. Operand 21810 states and 29941 transitions. [2021-11-04 08:55:19,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-04 08:55:19,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:55:19,419 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:55:19,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-04 08:55:19,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-04 08:55:19,637 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:55:19,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:55:19,637 INFO L85 PathProgramCache]: Analyzing trace with hash 165507049, now seen corresponding path program 2 times [2021-11-04 08:55:19,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:55:19,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949167126] [2021-11-04 08:55:19,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:55:19,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:55:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:55:20,493 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-04 08:55:20,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:55:20,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949167126] [2021-11-04 08:55:20,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949167126] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 08:55:20,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135079655] [2021-11-04 08:55:20,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-04 08:55:20,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 08:55:20,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 08:55:20,495 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 08:55:20,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process Killed by 15