./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.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 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 13:55:15,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 13:55:15,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 13:55:15,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 13:55:15,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 13:55:15,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 13:55:15,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 13:55:15,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 13:55:15,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 13:55:15,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 13:55:15,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 13:55:15,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 13:55:15,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 13:55:15,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 13:55:15,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 13:55:15,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 13:55:15,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 13:55:15,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 13:55:15,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 13:55:15,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 13:55:15,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 13:55:15,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 13:55:15,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 13:55:15,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 13:55:15,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 13:55:15,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 13:55:15,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 13:55:15,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 13:55:15,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 13:55:15,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 13:55:15,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 13:55:15,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 13:55:15,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 13:55:15,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 13:55:15,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 13:55:15,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 13:55:15,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 13:55:15,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 13:55:15,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 13:55:15,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 13:55:15,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 13:55:15,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 13:55:15,358 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 13:55:15,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 13:55:15,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 13:55:15,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 13:55:15,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 13:55:15,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 13:55:15,366 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 13:55:15,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 13:55:15,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 13:55:15,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 13:55:15,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 13:55:15,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 13:55:15,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 13:55:15,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 13:55:15,368 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 13:55:15,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 13:55:15,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 13:55:15,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 13:55:15,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 13:55:15,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:55:15,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 13:55:15,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 13:55:15,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 13:55:15,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 13:55:15,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 13:55:15,370 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 13:55:15,370 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 13:55:15,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 13:55:15,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 13:55:15,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 [2021-11-07 13:55:15,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 13:55:15,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 13:55:15,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 13:55:15,642 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 13:55:15,643 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 13:55:15,644 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 13:55:15,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/091a5f605/e03b8dd8f7b843bcaa970d0c44d34ec7/FLAGbe16f4998 [2021-11-07 13:55:16,341 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 13:55:16,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 13:55:16,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/091a5f605/e03b8dd8f7b843bcaa970d0c44d34ec7/FLAGbe16f4998 [2021-11-07 13:55:16,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/091a5f605/e03b8dd8f7b843bcaa970d0c44d34ec7 [2021-11-07 13:55:16,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 13:55:16,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 13:55:16,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 13:55:16,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 13:55:16,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 13:55:16,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:16" (1/1) ... [2021-11-07 13:55:16,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56bddcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:16, skipping insertion in model container [2021-11-07 13:55:16,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:16" (1/1) ... [2021-11-07 13:55:16,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 13:55:16,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 13:55:17,517 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-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2021-11-07 13:55:17,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:55:17,563 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 13:55:17,838 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-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2021-11-07 13:55:17,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:55:17,944 INFO L208 MainTranslator]: Completed translation [2021-11-07 13:55:17,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:17 WrapperNode [2021-11-07 13:55:17,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 13:55:17,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 13:55:17,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 13:55:17,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 13:55:17,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:17" (1/1) ... [2021-11-07 13:55:18,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:17" (1/1) ... [2021-11-07 13:55:18,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 13:55:18,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 13:55:18,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 13:55:18,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 13:55:18,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:17" (1/1) ... [2021-11-07 13:55:18,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:17" (1/1) ... [2021-11-07 13:55:18,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:17" (1/1) ... [2021-11-07 13:55:18,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:17" (1/1) ... [2021-11-07 13:55:19,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:17" (1/1) ... [2021-11-07 13:55:19,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:17" (1/1) ... [2021-11-07 13:55:19,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:17" (1/1) ... [2021-11-07 13:55:19,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 13:55:19,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 13:55:19,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 13:55:19,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 13:55:19,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:17" (1/1) ... [2021-11-07 13:55:19,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:55:19,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:55:19,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 13:55:19,558 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 [2021-11-07 13:55:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 13:55:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 13:55:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 13:55:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 13:55:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 13:55:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 13:55:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 13:55:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 13:55:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 13:55:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 13:55:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 13:55:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 13:55:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 13:55:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 13:55:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 13:55:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 13:55:39,508 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 13:55:39,509 INFO L299 CfgBuilder]: Removed 3233 assume(true) statements. [2021-11-07 13:55:39,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:55:39 BoogieIcfgContainer [2021-11-07 13:55:39,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 13:55:39,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 13:55:39,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 13:55:39,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 13:55:39,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:55:16" (1/3) ... [2021-11-07 13:55:39,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313ce274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:55:39, skipping insertion in model container [2021-11-07 13:55:39,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:17" (2/3) ... [2021-11-07 13:55:39,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313ce274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:55:39, skipping insertion in model container [2021-11-07 13:55:39,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:55:39" (3/3) ... [2021-11-07 13:55:39,522 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 13:55:39,526 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 13:55:39,527 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 13:55:39,586 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 13:55:39,592 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 13:55:39,592 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 13:55:39,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 4726 states, 4719 states have (on average 1.5117609663064209) internal successors, (7134), 4725 states have internal predecessors, (7134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:39,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 13:55:39,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:39,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:39,679 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 13:55:39,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:39,684 INFO L85 PathProgramCache]: Analyzing trace with hash 7063654, now seen corresponding path program 1 times [2021-11-07 13:55:39,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:39,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117633897] [2021-11-07 13:55:39,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:39,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:40,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:55:40,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:40,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117633897] [2021-11-07 13:55:40,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117633897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:40,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:40,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:55:40,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460422857] [2021-11-07 13:55:40,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:40,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 13:55:40,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:40,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 13:55:40,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 13:55:40,328 INFO L87 Difference]: Start difference. First operand has 4726 states, 4719 states have (on average 1.5117609663064209) internal successors, (7134), 4725 states have internal predecessors, (7134), 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 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:40,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:55:40,501 INFO L93 Difference]: Finished difference Result 9448 states and 14263 transitions. [2021-11-07 13:55:40,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 13:55:40,503 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-07 13:55:40,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:55:40,533 INFO L225 Difference]: With dead ends: 9448 [2021-11-07 13:55:40,534 INFO L226 Difference]: Without dead ends: 4697 [2021-11-07 13:55:40,546 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 [2021-11-07 13:55:40,551 INFO L933 BasicCegarLoop]: 7115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 13:55:40,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7115 Invalid, 0 Unknown, 0 Unchecked, 15.33ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 13:55:40,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4697 states. [2021-11-07 13:55:40,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4697 to 4697. [2021-11-07 13:55:40,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4697 states, 4691 states have (on average 1.5052227670006395) internal successors, (7061), 4696 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:40,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4697 states to 4697 states and 7061 transitions. [2021-11-07 13:55:40,694 INFO L78 Accepts]: Start accepts. Automaton has 4697 states and 7061 transitions. Word has length 42 [2021-11-07 13:55:40,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:55:40,695 INFO L470 AbstractCegarLoop]: Abstraction has 4697 states and 7061 transitions. [2021-11-07 13:55:40,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4697 states and 7061 transitions. [2021-11-07 13:55:40,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 13:55:40,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:40,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:40,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 13:55:40,698 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 13:55:40,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:40,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1980709140, now seen corresponding path program 1 times [2021-11-07 13:55:40,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:40,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142199461] [2021-11-07 13:55:40,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:40,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:40,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:55:40,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:40,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142199461] [2021-11-07 13:55:40,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142199461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:40,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:40,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:55:40,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025034138] [2021-11-07 13:55:40,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:40,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:55:40,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:40,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:55:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:40,806 INFO L87 Difference]: Start difference. First operand 4697 states and 7061 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:40,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:55:40,979 INFO L93 Difference]: Finished difference Result 10102 states and 15157 transitions. [2021-11-07 13:55:40,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:55:40,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-07 13:55:40,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:55:40,998 INFO L225 Difference]: With dead ends: 10102 [2021-11-07 13:55:40,999 INFO L226 Difference]: Without dead ends: 5423 [2021-11-07 13:55:41,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.55ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:41,013 INFO L933 BasicCegarLoop]: 7060 mSDtfsCounter, 1067 mSDsluCounter, 7021 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 14081 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.16ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.62ms IncrementalHoareTripleChecker+Time [2021-11-07 13:55:41,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1067 Valid, 14081 Invalid, 23 Unknown, 0 Unchecked, 17.16ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 45.62ms Time] [2021-11-07 13:55:41,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5423 states. [2021-11-07 13:55:41,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5423 to 5405. [2021-11-07 13:55:41,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5405 states, 5399 states have (on average 1.4995369512872754) internal successors, (8096), 5404 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:41,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5405 states to 5405 states and 8096 transitions. [2021-11-07 13:55:41,126 INFO L78 Accepts]: Start accepts. Automaton has 5405 states and 8096 transitions. Word has length 42 [2021-11-07 13:55:41,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:55:41,126 INFO L470 AbstractCegarLoop]: Abstraction has 5405 states and 8096 transitions. [2021-11-07 13:55:41,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:41,127 INFO L276 IsEmpty]: Start isEmpty. Operand 5405 states and 8096 transitions. [2021-11-07 13:55:41,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 13:55:41,133 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:41,134 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:41,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 13:55:41,134 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 13:55:41,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:41,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1637024580, now seen corresponding path program 1 times [2021-11-07 13:55:41,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:41,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509398009] [2021-11-07 13:55:41,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:41,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:41,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:55:41,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:41,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509398009] [2021-11-07 13:55:41,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509398009] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:41,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:41,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 13:55:41,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786355021] [2021-11-07 13:55:41,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:41,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 13:55:41,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:41,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 13:55:41,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 13:55:41,440 INFO L87 Difference]: Start difference. First operand 5405 states and 8096 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:43,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:55:45,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:55:48,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:55:53,483 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:55:55,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:24,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:56:24,247 INFO L93 Difference]: Finished difference Result 11543 states and 17238 transitions. [2021-11-07 13:56:24,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 13:56:24,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2021-11-07 13:56:24,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:56:24,267 INFO L225 Difference]: With dead ends: 11543 [2021-11-07 13:56:24,267 INFO L226 Difference]: Without dead ends: 6156 [2021-11-07 13:56:24,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 64.93ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-07 13:56:24,277 INFO L933 BasicCegarLoop]: 7211 mSDtfsCounter, 2160 mSDsluCounter, 30026 mSDsCounter, 0 mSdLazyCounter, 5722 mSolverCounterSat, 51 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39461.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 37237 SdHoareTripleChecker+Invalid, 5778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.40ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 5722 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42427.75ms IncrementalHoareTripleChecker+Time [2021-11-07 13:56:24,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2160 Valid, 37237 Invalid, 5778 Unknown, 0 Unchecked, 48.40ms Time], IncrementalHoareTripleChecker [51 Valid, 5722 Invalid, 5 Unknown, 0 Unchecked, 42427.75ms Time] [2021-11-07 13:56:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6156 states. [2021-11-07 13:56:24,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6156 to 5772. [2021-11-07 13:56:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5772 states, 5766 states have (on average 1.4954908081859175) internal successors, (8623), 5771 states have internal predecessors, (8623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:56:24,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5772 states to 5772 states and 8623 transitions. [2021-11-07 13:56:24,531 INFO L78 Accepts]: Start accepts. Automaton has 5772 states and 8623 transitions. Word has length 85 [2021-11-07 13:56:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:56:24,532 INFO L470 AbstractCegarLoop]: Abstraction has 5772 states and 8623 transitions. [2021-11-07 13:56:24,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:56:24,532 INFO L276 IsEmpty]: Start isEmpty. Operand 5772 states and 8623 transitions. [2021-11-07 13:56:24,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 13:56:24,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:56:24,537 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:56:24,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 13:56:24,538 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 13:56:24,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:56:24,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1740302319, now seen corresponding path program 1 times [2021-11-07 13:56:24,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:56:24,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36076996] [2021-11-07 13:56:24,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:56:24,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:56:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 13:56:24,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:56:24,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36076996] [2021-11-07 13:56:24,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36076996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:56:24,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:56:24,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:56:24,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3233948] [2021-11-07 13:56:24,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:56:24,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:56:24,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:56:24,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:56:24,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:56:24,773 INFO L87 Difference]: Start difference. First operand 5772 states and 8623 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:56:24,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:56:24,910 INFO L93 Difference]: Finished difference Result 11270 states and 16877 transitions. [2021-11-07 13:56:24,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:56:24,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 87 [2021-11-07 13:56:24,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:56:24,958 INFO L225 Difference]: With dead ends: 11270 [2021-11-07 13:56:24,958 INFO L226 Difference]: Without dead ends: 11262 [2021-11-07 13:56:24,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:56:24,965 INFO L933 BasicCegarLoop]: 13757 mSDtfsCounter, 7022 mSDsluCounter, 6725 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7022 SdHoareTripleChecker+Valid, 20482 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.67ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.18ms IncrementalHoareTripleChecker+Time [2021-11-07 13:56:24,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7022 Valid, 20482 Invalid, 18 Unknown, 0 Unchecked, 10.67ms Time], IncrementalHoareTripleChecker [8 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 23.18ms Time] [2021-11-07 13:56:24,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11262 states. [2021-11-07 13:56:25,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11262 to 5764. [2021-11-07 13:56:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5764 states, 5762 states have (on average 1.494793474488025) internal successors, (8613), 5763 states have internal predecessors, (8613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:56:25,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5764 states to 5764 states and 8613 transitions. [2021-11-07 13:56:25,120 INFO L78 Accepts]: Start accepts. Automaton has 5764 states and 8613 transitions. Word has length 87 [2021-11-07 13:56:25,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:56:25,121 INFO L470 AbstractCegarLoop]: Abstraction has 5764 states and 8613 transitions. [2021-11-07 13:56:25,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:56:25,121 INFO L276 IsEmpty]: Start isEmpty. Operand 5764 states and 8613 transitions. [2021-11-07 13:56:25,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-07 13:56:25,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:56:25,125 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 13:56:25,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 13:56:25,126 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 13:56:25,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:56:25,126 INFO L85 PathProgramCache]: Analyzing trace with hash -963041693, now seen corresponding path program 1 times [2021-11-07 13:56:25,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:56:25,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517427039] [2021-11-07 13:56:25,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:56:25,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:56:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:25,590 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:56:25,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:56:25,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517427039] [2021-11-07 13:56:25,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517427039] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 13:56:25,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295555594] [2021-11-07 13:56:25,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:56:25,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:56:25,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:56:25,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 13:56:25,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 13:56:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:26,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 1868 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-07 13:56:26,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:56:26,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 13:56:26,445 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-07 13:56:26,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-07 13:56:26,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|ULTIMATE.start_ldv_init_zalloc_#t~malloc43.base|] [2021-11-07 13:56:26,557 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-07 13:56:26,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-11-07 13:56:26,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360630183] [2021-11-07 13:56:26,557 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-07 13:56:26,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 13:56:26,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:56:26,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 13:56:26,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-11-07 13:56:26,558 INFO L87 Difference]: Start difference. First operand 5764 states and 8613 transitions. Second operand has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:56:28,180 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:30,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:32,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:34,047 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:35,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:37,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:39,325 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:41,487 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:43,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:45,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:47,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:57,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:59,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:01,162 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:03,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:05,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:07,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:17,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:19,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:21,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:23,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:25,684 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:27,828 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:29,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:32,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:34,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:36,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:40,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:42,264 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:44,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:46,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:48,589 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:50,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:06,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:11,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:21,432 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:23,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:25,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:27,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:30,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:32,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:34,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:36,357 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:38,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:52,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:54,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:59:08,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:59:10,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:00:56,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:00:56,136 INFO L93 Difference]: Finished difference Result 24074 states and 35700 transitions. [2021-11-07 14:00:56,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-07 14:00:56,137 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-07 14:00:56,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:00:56,175 INFO L225 Difference]: With dead ends: 24074 [2021-11-07 14:00:56,175 INFO L226 Difference]: Without dead ends: 18328 [2021-11-07 14:00:56,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 1531.21ms TimeCoverageRelationStatistics Valid=592, Invalid=2488, Unknown=0, NotChecked=0, Total=3080 [2021-11-07 14:00:56,189 INFO L933 BasicCegarLoop]: 13655 mSDtfsCounter, 24105 mSDsluCounter, 126940 mSDsCounter, 0 mSdLazyCounter, 27072 mSolverCounterSat, 1021 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 248183.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24105 SdHoareTripleChecker+Valid, 140595 SdHoareTripleChecker+Invalid, 28126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 205.87ms SdHoareTripleChecker+Time, 1021 IncrementalHoareTripleChecker+Valid, 27072 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 266917.74ms IncrementalHoareTripleChecker+Time [2021-11-07 14:00:56,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24105 Valid, 140595 Invalid, 28126 Unknown, 0 Unchecked, 205.87ms Time], IncrementalHoareTripleChecker [1021 Valid, 27072 Invalid, 33 Unknown, 0 Unchecked, 266917.74ms Time] [2021-11-07 14:00:56,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18328 states. [2021-11-07 14:00:56,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18328 to 12203. [2021-11-07 14:00:56,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12203 states, 12201 states have (on average 1.49233669371363) internal successors, (18208), 12202 states have internal predecessors, (18208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:00:56,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12203 states to 12203 states and 18208 transitions. [2021-11-07 14:00:56,645 INFO L78 Accepts]: Start accepts. Automaton has 12203 states and 18208 transitions. Word has length 99 [2021-11-07 14:00:56,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:00:56,646 INFO L470 AbstractCegarLoop]: Abstraction has 12203 states and 18208 transitions. [2021-11-07 14:00:56,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:00:56,647 INFO L276 IsEmpty]: Start isEmpty. Operand 12203 states and 18208 transitions. [2021-11-07 14:00:56,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-07 14:00:56,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:00:56,658 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-07 14:00:56,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 14:00:56,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 14:00:56,868 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 14:00:56,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:00:56,868 INFO L85 PathProgramCache]: Analyzing trace with hash 819478138, now seen corresponding path program 1 times [2021-11-07 14:00:56,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:00:56,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141948338] [2021-11-07 14:00:56,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:00:56,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:00:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:00:57,096 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 14:00:57,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:00:57,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141948338] [2021-11-07 14:00:57,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141948338] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:00:57,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:00:57,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 14:00:57,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683930616] [2021-11-07 14:00:57,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:00:57,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:00:57,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:00:57,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:00:57,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:00:57,100 INFO L87 Difference]: Start difference. First operand 12203 states and 18208 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:00:59,122 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 [] [2021-11-07 14:01:01,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:01:16,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:01:16,491 INFO L93 Difference]: Finished difference Result 28573 states and 42331 transitions. [2021-11-07 14:01:16,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 14:01:16,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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 100 [2021-11-07 14:01:16,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:01:16,529 INFO L225 Difference]: With dead ends: 28573 [2021-11-07 14:01:16,529 INFO L226 Difference]: Without dead ends: 16388 [2021-11-07 14:01:16,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 19.76ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 14:01:16,550 INFO L933 BasicCegarLoop]: 7995 mSDtfsCounter, 2472 mSDsluCounter, 12826 mSDsCounter, 0 mSdLazyCounter, 2762 mSolverCounterSat, 140 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16983.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 20821 SdHoareTripleChecker+Invalid, 2903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.51ms SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 2762 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18925.29ms IncrementalHoareTripleChecker+Time [2021-11-07 14:01:16,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2472 Valid, 20821 Invalid, 2903 Unknown, 0 Unchecked, 32.51ms Time], IncrementalHoareTripleChecker [140 Valid, 2762 Invalid, 1 Unknown, 0 Unchecked, 18925.29ms Time] [2021-11-07 14:01:16,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16388 states. [2021-11-07 14:01:16,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16388 to 12211. [2021-11-07 14:01:16,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12211 states, 12209 states have (on average 1.4921779015480383) internal successors, (18218), 12210 states have internal predecessors, (18218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:01:16,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12211 states to 12211 states and 18218 transitions. [2021-11-07 14:01:16,910 INFO L78 Accepts]: Start accepts. Automaton has 12211 states and 18218 transitions. Word has length 100 [2021-11-07 14:01:16,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:01:16,910 INFO L470 AbstractCegarLoop]: Abstraction has 12211 states and 18218 transitions. [2021-11-07 14:01:16,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:01:16,910 INFO L276 IsEmpty]: Start isEmpty. Operand 12211 states and 18218 transitions. [2021-11-07 14:01:16,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 14:01:16,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:01:16,923 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-07 14:01:16,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 14:01:16,923 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 14:01:16,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:01:16,923 INFO L85 PathProgramCache]: Analyzing trace with hash 61488929, now seen corresponding path program 1 times [2021-11-07 14:01:16,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:01:16,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658031580] [2021-11-07 14:01:16,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:01:16,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:01:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:01:17,083 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 14:01:17,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:01:17,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658031580] [2021-11-07 14:01:17,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658031580] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:01:17,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:01:17,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 14:01:17,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279901756] [2021-11-07 14:01:17,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:01:17,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 14:01:17,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:01:17,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 14:01:17,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 14:01:17,088 INFO L87 Difference]: Start difference. First operand 12211 states and 18218 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:01:19,111 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 [] [2021-11-07 14:01:22,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:01:27,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:01:40,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:01:43,006 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:01:56,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:01:56,219 INFO L93 Difference]: Finished difference Result 44267 states and 65512 transitions. [2021-11-07 14:01:56,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 14:01:56,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-07 14:01:56,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:01:56,277 INFO L225 Difference]: With dead ends: 44267 [2021-11-07 14:01:56,278 INFO L226 Difference]: Without dead ends: 32074 [2021-11-07 14:01:56,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 36.78ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-07 14:01:56,303 INFO L933 BasicCegarLoop]: 15516 mSDtfsCounter, 9223 mSDsluCounter, 32868 mSDsCounter, 0 mSdLazyCounter, 5629 mSolverCounterSat, 162 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34492.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9223 SdHoareTripleChecker+Valid, 48384 SdHoareTripleChecker+Invalid, 5794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.91ms SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 5629 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38215.18ms IncrementalHoareTripleChecker+Time [2021-11-07 14:01:56,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9223 Valid, 48384 Invalid, 5794 Unknown, 0 Unchecked, 61.91ms Time], IncrementalHoareTripleChecker [162 Valid, 5629 Invalid, 3 Unknown, 0 Unchecked, 38215.18ms Time] [2021-11-07 14:01:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32074 states. [2021-11-07 14:01:56,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32074 to 12213. [2021-11-07 14:01:56,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12213 states, 12211 states have (on average 1.4920972893292932) internal successors, (18220), 12212 states have internal predecessors, (18220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:01:56,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12213 states to 12213 states and 18220 transitions. [2021-11-07 14:01:56,702 INFO L78 Accepts]: Start accepts. Automaton has 12213 states and 18220 transitions. Word has length 101 [2021-11-07 14:01:56,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:01:56,702 INFO L470 AbstractCegarLoop]: Abstraction has 12213 states and 18220 transitions. [2021-11-07 14:01:56,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:01:56,703 INFO L276 IsEmpty]: Start isEmpty. Operand 12213 states and 18220 transitions. [2021-11-07 14:01:56,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 14:01:56,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:01:56,711 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-07 14:01:56,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 14:01:56,711 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 14:01:56,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:01:56,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1767294805, now seen corresponding path program 1 times [2021-11-07 14:01:56,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:01:56,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831330977] [2021-11-07 14:01:56,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:01:56,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:01:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:01:56,951 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 14:01:56,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:01:56,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831330977] [2021-11-07 14:01:56,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831330977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:01:56,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:01:56,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 14:01:56,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477183558] [2021-11-07 14:01:56,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:01:56,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 14:01:56,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:01:56,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 14:01:56,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 14:01:56,954 INFO L87 Difference]: Start difference. First operand 12213 states and 18220 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:01:58,980 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:02:01,213 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:02:06,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:02:21,916 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:02:32,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:02:32,869 INFO L93 Difference]: Finished difference Result 30743 states and 45423 transitions. [2021-11-07 14:02:32,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 14:02:32,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-07 14:02:32,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:02:32,899 INFO L225 Difference]: With dead ends: 30743 [2021-11-07 14:02:32,899 INFO L226 Difference]: Without dead ends: 18548 [2021-11-07 14:02:32,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 64.99ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-07 14:02:32,919 INFO L933 BasicCegarLoop]: 7955 mSDtfsCounter, 4526 mSDsluCounter, 19415 mSDsCounter, 0 mSdLazyCounter, 4839 mSolverCounterSat, 240 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31686.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4526 SdHoareTripleChecker+Valid, 27370 SdHoareTripleChecker+Invalid, 5082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.58ms SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 4839 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35227.48ms IncrementalHoareTripleChecker+Time [2021-11-07 14:02:32,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4526 Valid, 27370 Invalid, 5082 Unknown, 0 Unchecked, 42.58ms Time], IncrementalHoareTripleChecker [240 Valid, 4839 Invalid, 3 Unknown, 0 Unchecked, 35227.48ms Time] [2021-11-07 14:02:32,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18548 states. [2021-11-07 14:02:33,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18548 to 12221. [2021-11-07 14:02:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12221 states, 12219 states have (on average 1.4919387838611997) internal successors, (18230), 12220 states have internal predecessors, (18230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:02:33,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12221 states to 12221 states and 18230 transitions. [2021-11-07 14:02:33,308 INFO L78 Accepts]: Start accepts. Automaton has 12221 states and 18230 transitions. Word has length 101 [2021-11-07 14:02:33,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:02:33,308 INFO L470 AbstractCegarLoop]: Abstraction has 12221 states and 18230 transitions. [2021-11-07 14:02:33,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:02:33,308 INFO L276 IsEmpty]: Start isEmpty. Operand 12221 states and 18230 transitions. [2021-11-07 14:02:33,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-07 14:02:33,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:02:33,316 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:02:33,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 14:02:33,317 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 14:02:33,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:02:33,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1475906320, now seen corresponding path program 1 times [2021-11-07 14:02:33,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:02:33,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169564931] [2021-11-07 14:02:33,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:02:33,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:02:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:02:33,487 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 14:02:33,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:02:33,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169564931] [2021-11-07 14:02:33,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169564931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:02:33,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:02:33,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 14:02:33,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726805006] [2021-11-07 14:02:33,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:02:33,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 14:02:33,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:02:33,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 14:02:33,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 14:02:33,489 INFO L87 Difference]: Start difference. First operand 12221 states and 18230 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:02:35,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:02:37,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:02:41,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:02:50,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:02:52,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:02:54,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:03:15,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:03:17,607 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:03:18,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:03:46,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:03:46,445 INFO L93 Difference]: Finished difference Result 47815 states and 70557 transitions. [2021-11-07 14:03:46,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 14:03:46,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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 102 [2021-11-07 14:03:46,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:03:46,500 INFO L225 Difference]: With dead ends: 47815 [2021-11-07 14:03:46,500 INFO L226 Difference]: Without dead ends: 35612 [2021-11-07 14:03:46,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 97.97ms TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-11-07 14:03:46,519 INFO L933 BasicCegarLoop]: 15465 mSDtfsCounter, 11666 mSDsluCounter, 45282 mSDsCounter, 0 mSdLazyCounter, 9654 mSolverCounterSat, 276 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64278.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11666 SdHoareTripleChecker+Valid, 60747 SdHoareTripleChecker+Invalid, 9936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 92.65ms SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 9654 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71619.71ms IncrementalHoareTripleChecker+Time [2021-11-07 14:03:46,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11666 Valid, 60747 Invalid, 9936 Unknown, 0 Unchecked, 92.65ms Time], IncrementalHoareTripleChecker [276 Valid, 9654 Invalid, 6 Unknown, 0 Unchecked, 71619.71ms Time] [2021-11-07 14:03:46,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35612 states. [2021-11-07 14:03:46,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35612 to 12229. [2021-11-07 14:03:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12229 states, 12227 states have (on average 1.4919440582317822) internal successors, (18242), 12228 states have internal predecessors, (18242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:03:46,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12229 states to 12229 states and 18242 transitions. [2021-11-07 14:03:46,960 INFO L78 Accepts]: Start accepts. Automaton has 12229 states and 18242 transitions. Word has length 102 [2021-11-07 14:03:46,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:03:46,960 INFO L470 AbstractCegarLoop]: Abstraction has 12229 states and 18242 transitions. [2021-11-07 14:03:46,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:03:46,961 INFO L276 IsEmpty]: Start isEmpty. Operand 12229 states and 18242 transitions. [2021-11-07 14:03:46,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 14:03:46,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:03:46,970 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:03:46,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 14:03:46,971 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 14:03:46,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:03:46,971 INFO L85 PathProgramCache]: Analyzing trace with hash -376005908, now seen corresponding path program 1 times [2021-11-07 14:03:46,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:03:46,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240575572] [2021-11-07 14:03:46,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:03:46,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:03:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:03:47,469 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:03:47,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:03:47,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240575572] [2021-11-07 14:03:47,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240575572] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 14:03:47,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895680035] [2021-11-07 14:03:47,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:03:47,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 14:03:47,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:03:47,472 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 14:03:47,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 14:03:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:03:48,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1859 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-07 14:03:48,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 14:03:48,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-07 14:03:48,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 14:03:48,387 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-07 14:03:48,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 34 [2021-11-07 14:03:48,401 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-07 14:03:48,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-07 14:03:48,561 INFO L354 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size [2021-11-07 14:03:48,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2021-11-07 14:03:48,578 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-07 14:03:48,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 40 [2021-11-07 14:03:49,431 INFO L354 Elim1Store]: treesize reduction 168, result has 28.5 percent of original size [2021-11-07 14:03:49,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 100 treesize of output 152 [2021-11-07 14:03:49,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:03:49,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-11-07 14:03:50,859 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 14:03:50,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 203 treesize of output 213 [2021-11-07 14:03:51,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2021-11-07 14:04:57,277 INFO L354 Elim1Store]: treesize reduction 24, result has 70.4 percent of original size [2021-11-07 14:04:57,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 129 treesize of output 167 [2021-11-07 14:04:57,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-11-07 14:04:57,286 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-07 14:04:57,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-11-07 14:04:57,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230448385] [2021-11-07 14:04:57,287 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-07 14:04:57,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 14:04:57,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:57,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 14:04:57,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=632, Unknown=1, NotChecked=0, Total=702 [2021-11-07 14:04:57,288 INFO L87 Difference]: Start difference. First operand 12229 states and 18242 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:04:57,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 14:04:57,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 8955.24ms TimeCoverageRelationStatistics Valid=69, Invalid=632, Unknown=1, NotChecked=0, Total=702 [2021-11-07 14:04:57,289 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.01ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:57,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 0.01ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:04:57,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-07 14:04:57,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-07 14:04:57,504 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@63b1b5ea at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:359) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:868) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 14:04:57,507 INFO L158 Benchmark]: Toolchain (without parser) took 581012.32ms. Allocated memory was 100.7MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 63.9MB in the beginning and 675.1MB in the end (delta: -611.1MB). Peak memory consumption was 733.0MB. Max. memory is 16.1GB. [2021-11-07 14:04:57,507 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory was 58.3MB in the beginning and 58.3MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-07 14:04:57,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1450.49ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 63.6MB in the beginning and 87.3MB in the end (delta: -23.8MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. [2021-11-07 14:04:57,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 541.23ms. Allocated memory was 138.4MB in the beginning and 274.7MB in the end (delta: 136.3MB). Free memory was 87.3MB in the beginning and 125.1MB in the end (delta: -37.7MB). Peak memory consumption was 98.9MB. Max. memory is 16.1GB. [2021-11-07 14:04:57,508 INFO L158 Benchmark]: Boogie Preprocessor took 981.60ms. Allocated memory was 274.7MB in the beginning and 549.5MB in the end (delta: 274.7MB). Free memory was 125.1MB in the beginning and 379.9MB in the end (delta: -254.8MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. [2021-11-07 14:04:57,508 INFO L158 Benchmark]: RCFGBuilder took 20043.21ms. Allocated memory was 549.5MB in the beginning and 1.4GB in the end (delta: 895.5MB). Free memory was 379.9MB in the beginning and 499.4MB in the end (delta: -119.5MB). Peak memory consumption was 774.9MB. Max. memory is 16.1GB. [2021-11-07 14:04:57,508 INFO L158 Benchmark]: TraceAbstraction took 557990.27ms. Allocated memory is still 1.4GB. Free memory was 498.4MB in the beginning and 675.1MB in the end (delta: -176.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-07 14:04:57,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory was 58.3MB in the beginning and 58.3MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1450.49ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 63.6MB in the beginning and 87.3MB in the end (delta: -23.8MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 541.23ms. Allocated memory was 138.4MB in the beginning and 274.7MB in the end (delta: 136.3MB). Free memory was 87.3MB in the beginning and 125.1MB in the end (delta: -37.7MB). Peak memory consumption was 98.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 981.60ms. Allocated memory was 274.7MB in the beginning and 549.5MB in the end (delta: 274.7MB). Free memory was 125.1MB in the beginning and 379.9MB in the end (delta: -254.8MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. * RCFGBuilder took 20043.21ms. Allocated memory was 549.5MB in the beginning and 1.4GB in the end (delta: 895.5MB). Free memory was 379.9MB in the beginning and 499.4MB in the end (delta: -119.5MB). Peak memory consumption was 774.9MB. Max. memory is 16.1GB. * TraceAbstraction took 557990.27ms. Allocated memory is still 1.4GB. Free memory was 498.4MB in the beginning and 675.1MB in the end (delta: -176.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@63b1b5ea de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@63b1b5ea: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-07 14:04:57,715 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-07 14:04:57,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 14:04:59,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 14:04:59,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 14:04:59,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 14:04:59,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 14:04:59,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 14:04:59,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 14:04:59,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 14:04:59,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 14:04:59,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 14:04:59,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 14:04:59,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 14:04:59,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 14:04:59,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 14:04:59,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 14:04:59,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 14:04:59,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 14:04:59,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 14:04:59,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 14:04:59,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 14:04:59,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 14:04:59,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 14:04:59,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 14:04:59,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 14:04:59,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 14:04:59,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 14:04:59,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 14:04:59,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 14:04:59,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 14:04:59,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 14:04:59,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 14:04:59,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 14:04:59,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 14:04:59,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 14:04:59,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 14:04:59,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 14:04:59,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 14:04:59,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 14:04:59,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 14:04:59,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 14:04:59,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 14:04:59,406 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-07 14:04:59,434 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 14:04:59,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 14:04:59,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 14:04:59,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 14:04:59,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 14:04:59,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 14:04:59,438 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 14:04:59,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 14:04:59,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 14:04:59,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 14:04:59,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 14:04:59,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 14:04:59,439 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 14:04:59,439 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 14:04:59,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 14:04:59,440 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 14:04:59,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 14:04:59,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 14:04:59,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 14:04:59,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 14:04:59,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:04:59,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 14:04:59,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 14:04:59,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 14:04:59,446 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 14:04:59,446 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 14:04:59,446 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 14:04:59,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 14:04:59,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 14:04:59,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 14:04:59,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 14:04:59,447 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 [2021-11-07 14:04:59,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 14:04:59,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 14:04:59,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 14:04:59,753 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 14:04:59,754 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 14:04:59,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 14:04:59,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d0878aa6/fd07113fccaa43919ebf7e9da4634d93/FLAG712daee69 [2021-11-07 14:05:00,438 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 14:05:00,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 14:05:00,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d0878aa6/fd07113fccaa43919ebf7e9da4634d93/FLAG712daee69 [2021-11-07 14:05:00,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d0878aa6/fd07113fccaa43919ebf7e9da4634d93 [2021-11-07 14:05:00,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 14:05:00,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 14:05:00,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 14:05:00,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 14:05:00,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 14:05:00,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:05:00" (1/1) ... [2021-11-07 14:05:00,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78568b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:00, skipping insertion in model container [2021-11-07 14:05:00,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:05:00" (1/1) ... [2021-11-07 14:05:00,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 14:05:00,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 14:05:01,898 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-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2021-11-07 14:05:01,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:05:01,939 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 14:05:02,127 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-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2021-11-07 14:05:02,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:05:02,198 INFO L208 MainTranslator]: Completed translation [2021-11-07 14:05:02,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:02 WrapperNode [2021-11-07 14:05:02,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 14:05:02,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 14:05:02,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 14:05:02,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 14:05:02,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:02" (1/1) ... [2021-11-07 14:05:02,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:02" (1/1) ... [2021-11-07 14:05:02,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 14:05:02,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 14:05:02,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 14:05:02,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 14:05:02,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:02" (1/1) ... [2021-11-07 14:05:02,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:02" (1/1) ... [2021-11-07 14:05:02,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:02" (1/1) ... [2021-11-07 14:05:02,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:02" (1/1) ... [2021-11-07 14:05:03,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:02" (1/1) ... [2021-11-07 14:05:03,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:02" (1/1) ... [2021-11-07 14:05:03,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:02" (1/1) ... [2021-11-07 14:05:03,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 14:05:03,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 14:05:03,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 14:05:03,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 14:05:03,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:02" (1/1) ... [2021-11-07 14:05:03,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:05:03,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:05:03,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 14:05:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 14:05:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 14:05:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 14:05:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 14:05:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 14:05:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 14:05:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 14:05:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 14:05:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 14:05:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 14:05:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 14:05:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 14:05:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 14:05:03,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 14:08:46,399 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 14:08:46,400 INFO L299 CfgBuilder]: Removed 3233 assume(true) statements. [2021-11-07 14:08:46,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:08:46 BoogieIcfgContainer [2021-11-07 14:08:46,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 14:08:46,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 14:08:46,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 14:08:46,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 14:08:46,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:05:00" (1/3) ... [2021-11-07 14:08:46,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ece8df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:08:46, skipping insertion in model container [2021-11-07 14:08:46,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:02" (2/3) ... [2021-11-07 14:08:46,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ece8df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:08:46, skipping insertion in model container [2021-11-07 14:08:46,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:08:46" (3/3) ... [2021-11-07 14:08:46,411 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 14:08:46,414 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 14:08:46,414 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 14:08:46,473 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 14:08:46,482 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 14:08:46,482 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 14:08:46,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 4726 states, 4719 states have (on average 1.5117609663064209) internal successors, (7134), 4725 states have internal predecessors, (7134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:46,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 14:08:46,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:08:46,560 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] [2021-11-07 14:08:46,560 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 14:08:46,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:08:46,565 INFO L85 PathProgramCache]: Analyzing trace with hash 7063654, now seen corresponding path program 1 times [2021-11-07 14:08:46,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 14:08:46,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142363442] [2021-11-07 14:08:46,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:08:46,577 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 14:08:46,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 14:08:46,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 14:08:46,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 14:08:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:08:47,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 14:08:47,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 14:08:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:08:47,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 14:08:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:08:48,195 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 14:08:48,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142363442] [2021-11-07 14:08:48,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [142363442] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 14:08:48,195 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:08:48,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 14:08:48,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791617786] [2021-11-07 14:08:48,197 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 14:08:48,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 14:08:48,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 14:08:48,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 14:08:48,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:08:48,225 INFO L87 Difference]: Start difference. First operand has 4726 states, 4719 states have (on average 1.5117609663064209) internal successors, (7134), 4725 states have internal predecessors, (7134), 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 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:48,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:08:48,496 INFO L93 Difference]: Finished difference Result 9448 states and 14263 transitions. [2021-11-07 14:08:48,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 14:08:48,498 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-07 14:08:48,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:08:48,527 INFO L225 Difference]: With dead ends: 9448 [2021-11-07 14:08:48,527 INFO L226 Difference]: Without dead ends: 4697 [2021-11-07 14:08:48,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.45ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:08:48,543 INFO L933 BasicCegarLoop]: 7115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:08:48,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7115 Invalid, 0 Unknown, 0 Unchecked, 8.58ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:08:48,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4697 states. [2021-11-07 14:08:48,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4697 to 4697. [2021-11-07 14:08:48,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4697 states, 4691 states have (on average 1.5052227670006395) internal successors, (7061), 4696 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:48,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4697 states to 4697 states and 7061 transitions. [2021-11-07 14:08:48,698 INFO L78 Accepts]: Start accepts. Automaton has 4697 states and 7061 transitions. Word has length 42 [2021-11-07 14:08:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:08:48,699 INFO L470 AbstractCegarLoop]: Abstraction has 4697 states and 7061 transitions. [2021-11-07 14:08:48,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 4697 states and 7061 transitions. [2021-11-07 14:08:48,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 14:08:48,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:08:48,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:08:48,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 14:08:48,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 14:08:48,917 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 14:08:48,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:08:48,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1980709140, now seen corresponding path program 1 times [2021-11-07 14:08:48,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 14:08:48,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627143139] [2021-11-07 14:08:48,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:08:48,919 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 14:08:48,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 14:08:48,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 14:08:48,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 14:08:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:08:49,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 14:08:49,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 14:08:50,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:08:50,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 14:08:50,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:08:50,494 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 14:08:50,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627143139] [2021-11-07 14:08:50,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627143139] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 14:08:50,494 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:08:50,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 14:08:50,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983267286] [2021-11-07 14:08:50,495 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 14:08:50,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:08:50,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 14:08:50,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:08:50,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:08:50,496 INFO L87 Difference]: Start difference. First operand 4697 states and 7061 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:50,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:08:50,761 INFO L93 Difference]: Finished difference Result 9382 states and 14113 transitions. [2021-11-07 14:08:50,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 14:08:50,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-07 14:08:50,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:08:50,778 INFO L225 Difference]: With dead ends: 9382 [2021-11-07 14:08:50,778 INFO L226 Difference]: Without dead ends: 4701 [2021-11-07 14:08:50,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 93.97ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:08:50,787 INFO L933 BasicCegarLoop]: 7058 mSDtfsCounter, 0 mSDsluCounter, 7052 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 127.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14110 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.44ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.74ms IncrementalHoareTripleChecker+Time [2021-11-07 14:08:50,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14110 Invalid, 17 Unknown, 0 Unchecked, 17.44ms Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 145.74ms Time] [2021-11-07 14:08:50,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4701 states. [2021-11-07 14:08:50,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4701 to 4701. [2021-11-07 14:08:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4701 states, 4695 states have (on average 1.5047923322683705) internal successors, (7065), 4700 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:50,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4701 states to 4701 states and 7065 transitions. [2021-11-07 14:08:50,875 INFO L78 Accepts]: Start accepts. Automaton has 4701 states and 7065 transitions. Word has length 42 [2021-11-07 14:08:50,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:08:50,875 INFO L470 AbstractCegarLoop]: Abstraction has 4701 states and 7065 transitions. [2021-11-07 14:08:50,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:50,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4701 states and 7065 transitions. [2021-11-07 14:08:50,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 14:08:50,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:08:50,879 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:08:50,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 14:08:51,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 14:08:51,100 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 14:08:51,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:08:51,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1915917044, now seen corresponding path program 1 times [2021-11-07 14:08:51,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 14:08:51,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643212000] [2021-11-07 14:08:51,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:08:51,102 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 14:08:51,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 14:08:51,103 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 14:08:51,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 14:08:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:08:52,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 14:08:52,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 14:08:52,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:08:52,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 14:08:53,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:08:53,278 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 14:08:53,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643212000] [2021-11-07 14:08:53,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643212000] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 14:08:53,278 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 14:08:53,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-07 14:08:53,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357150810] [2021-11-07 14:08:53,278 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-07 14:08:53,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 14:08:53,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 14:08:53,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 14:08:53,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 14:08:53,279 INFO L87 Difference]: Start difference. First operand 4701 states and 7065 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:54,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:08:54,702 INFO L93 Difference]: Finished difference Result 9390 states and 14123 transitions. [2021-11-07 14:08:54,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 14:08:54,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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 44 [2021-11-07 14:08:54,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:08:54,727 INFO L225 Difference]: With dead ends: 9390 [2021-11-07 14:08:54,727 INFO L226 Difference]: Without dead ends: 4707 [2021-11-07 14:08:54,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1126.67ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-07 14:08:54,738 INFO L933 BasicCegarLoop]: 7058 mSDtfsCounter, 0 mSDsluCounter, 28208 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 717.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35266 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.92ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 764.71ms IncrementalHoareTripleChecker+Time [2021-11-07 14:08:54,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 35266 Invalid, 59 Unknown, 0 Unchecked, 22.92ms Time], IncrementalHoareTripleChecker [19 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 764.71ms Time] [2021-11-07 14:08:54,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4707 states. [2021-11-07 14:08:54,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4707 to 4707. [2021-11-07 14:08:54,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4707 states, 4701 states have (on average 1.5041480536056158) internal successors, (7071), 4706 states have internal predecessors, (7071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:54,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4707 states to 4707 states and 7071 transitions. [2021-11-07 14:08:54,855 INFO L78 Accepts]: Start accepts. Automaton has 4707 states and 7071 transitions. Word has length 44 [2021-11-07 14:08:54,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:08:54,855 INFO L470 AbstractCegarLoop]: Abstraction has 4707 states and 7071 transitions. [2021-11-07 14:08:54,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:54,855 INFO L276 IsEmpty]: Start isEmpty. Operand 4707 states and 7071 transitions. [2021-11-07 14:08:54,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 14:08:54,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:08:54,857 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:08:54,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 14:08:55,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 14:08:55,076 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 14:08:55,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:08:55,076 INFO L85 PathProgramCache]: Analyzing trace with hash 219745068, now seen corresponding path program 2 times [2021-11-07 14:08:55,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 14:08:55,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907112786] [2021-11-07 14:08:55,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 14:08:55,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 14:08:55,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 14:08:55,078 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 14:08:55,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 14:08:55,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 14:08:55,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 14:08:55,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 14:08:56,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 14:08:56,286 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 14:08:56,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 14:08:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 14:08:56,516 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 14:08:56,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907112786] [2021-11-07 14:08:56,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907112786] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 14:08:56,516 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:08:56,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 14:08:56,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910076060] [2021-11-07 14:08:56,516 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 14:08:56,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:08:56,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 14:08:56,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:08:56,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:08:56,517 INFO L87 Difference]: Start difference. First operand 4707 states and 7071 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:56,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:08:56,910 INFO L93 Difference]: Finished difference Result 10118 states and 15173 transitions. [2021-11-07 14:08:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:08:56,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-07 14:08:56,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:08:56,928 INFO L225 Difference]: With dead ends: 10118 [2021-11-07 14:08:56,928 INFO L226 Difference]: Without dead ends: 5433 [2021-11-07 14:08:56,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:08:56,940 INFO L933 BasicCegarLoop]: 7060 mSDtfsCounter, 1067 mSDsluCounter, 7021 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 250.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 14081 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.45ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 295.77ms IncrementalHoareTripleChecker+Time [2021-11-07 14:08:56,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1067 Valid, 14081 Invalid, 23 Unknown, 0 Unchecked, 17.45ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 295.77ms Time] [2021-11-07 14:08:56,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5433 states. [2021-11-07 14:08:57,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5433 to 5415. [2021-11-07 14:08:57,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5409 states have (on average 1.4986134220743206) internal successors, (8106), 5414 states have internal predecessors, (8106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:57,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 8106 transitions. [2021-11-07 14:08:57,067 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 8106 transitions. Word has length 46 [2021-11-07 14:08:57,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:08:57,068 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 8106 transitions. [2021-11-07 14:08:57,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:08:57,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 8106 transitions. [2021-11-07 14:08:57,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 14:08:57,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:08:57,079 INFO L514 BasicCegarLoop]: trace histogram [4, 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] [2021-11-07 14:08:57,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 14:08:57,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 14:08:57,286 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 14:08:57,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:08:57,286 INFO L85 PathProgramCache]: Analyzing trace with hash 962367612, now seen corresponding path program 1 times [2021-11-07 14:08:57,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 14:08:57,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903898591] [2021-11-07 14:08:57,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:08:57,287 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 14:08:57,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 14:08:57,288 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 14:08:57,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 14:09:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:09:03,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 14:09:03,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 14:09:04,406 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 14:09:04,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 14:09:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 14:09:04,868 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 14:09:04,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903898591] [2021-11-07 14:09:04,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903898591] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 14:09:04,868 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:09:04,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 8 [2021-11-07 14:09:04,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116515376] [2021-11-07 14:09:04,868 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 14:09:04,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 14:09:04,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 14:09:04,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 14:09:04,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-07 14:09:04,869 INFO L87 Difference]: Start difference. First operand 5415 states and 8106 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) Killed by 15