./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.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 a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 15:43:59,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 15:43:59,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 15:43:59,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 15:43:59,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 15:43:59,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 15:43:59,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 15:43:59,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 15:43:59,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 15:43:59,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 15:43:59,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 15:43:59,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 15:43:59,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 15:43:59,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 15:43:59,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 15:43:59,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 15:43:59,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 15:43:59,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 15:43:59,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 15:43:59,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 15:43:59,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 15:43:59,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 15:43:59,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 15:43:59,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 15:43:59,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 15:43:59,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 15:43:59,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 15:43:59,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 15:43:59,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 15:43:59,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 15:43:59,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 15:43:59,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 15:43:59,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 15:43:59,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 15:43:59,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 15:43:59,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 15:43:59,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 15:43:59,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 15:43:59,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 15:43:59,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 15:43:59,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 15:43:59,332 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 15:43:59,353 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 15:43:59,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 15:43:59,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 15:43:59,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 15:43:59,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 15:43:59,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 15:43:59,357 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 15:43:59,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 15:43:59,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 15:43:59,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 15:43:59,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 15:43:59,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 15:43:59,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 15:43:59,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 15:43:59,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 15:43:59,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 15:43:59,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 15:43:59,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 15:43:59,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 15:43:59,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:43:59,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 15:43:59,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 15:43:59,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 15:43:59,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 15:43:59,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 15:43:59,360 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 15:43:59,361 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 15:43:59,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 15:43:59,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 15:43:59,361 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 [2021-11-05 15:43:59,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 15:43:59,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 15:43:59,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 15:43:59,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 15:43:59,694 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 15:43:59,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2021-11-05 15:43:59,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e24ae96/49a3cd0737194639a4a3b694f4048572/FLAG4f44257d3 [2021-11-05 15:44:00,182 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 15:44:00,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2021-11-05 15:44:00,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e24ae96/49a3cd0737194639a4a3b694f4048572/FLAG4f44257d3 [2021-11-05 15:44:00,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e24ae96/49a3cd0737194639a4a3b694f4048572 [2021-11-05 15:44:00,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 15:44:00,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 15:44:00,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 15:44:00,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 15:44:00,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 15:44:00,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:44:00" (1/1) ... [2021-11-05 15:44:00,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a85e2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:00, skipping insertion in model container [2021-11-05 15:44:00,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:44:00" (1/1) ... [2021-11-05 15:44:00,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 15:44:00,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 15:44:01,185 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2021-11-05 15:44:01,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:44:01,266 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 15:44:01,387 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2021-11-05 15:44:01,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:44:01,450 INFO L208 MainTranslator]: Completed translation [2021-11-05 15:44:01,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:01 WrapperNode [2021-11-05 15:44:01,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 15:44:01,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 15:44:01,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 15:44:01,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 15:44:01,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:01" (1/1) ... [2021-11-05 15:44:01,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:01" (1/1) ... [2021-11-05 15:44:01,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 15:44:01,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 15:44:01,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 15:44:01,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 15:44:01,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:01" (1/1) ... [2021-11-05 15:44:01,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:01" (1/1) ... [2021-11-05 15:44:01,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:01" (1/1) ... [2021-11-05 15:44:01,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:01" (1/1) ... [2021-11-05 15:44:01,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:01" (1/1) ... [2021-11-05 15:44:01,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:01" (1/1) ... [2021-11-05 15:44:01,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:01" (1/1) ... [2021-11-05 15:44:01,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 15:44:01,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 15:44:01,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 15:44:01,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 15:44:01,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:01" (1/1) ... [2021-11-05 15:44:01,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:44:01,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 15:44:01,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 15:44:01,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 15:44:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 15:44:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 15:44:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 15:44:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 15:44:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 15:44:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 15:44:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-05 15:44:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 15:44:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 15:44:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 15:44:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 15:44:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 15:44:05,835 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 15:44:05,836 INFO L299 CfgBuilder]: Removed 1146 assume(true) statements. [2021-11-05 15:44:05,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:44:05 BoogieIcfgContainer [2021-11-05 15:44:05,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 15:44:05,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 15:44:05,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 15:44:05,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 15:44:05,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 03:44:00" (1/3) ... [2021-11-05 15:44:05,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652ac7bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:44:05, skipping insertion in model container [2021-11-05 15:44:05,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:44:01" (2/3) ... [2021-11-05 15:44:05,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652ac7bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:44:05, skipping insertion in model container [2021-11-05 15:44:05,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:44:05" (3/3) ... [2021-11-05 15:44:05,844 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2021-11-05 15:44:05,848 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 15:44:05,848 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-05 15:44:05,883 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 15:44:05,887 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 15:44:05,888 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-05 15:44:05,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 953 states, 943 states have (on average 1.2629904559915164) internal successors, (1191), 952 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:05,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-05 15:44:05,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:44:05,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:44:05,915 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 15:44:05,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:44:05,919 INFO L85 PathProgramCache]: Analyzing trace with hash -531399952, now seen corresponding path program 1 times [2021-11-05 15:44:05,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:44:05,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102543971] [2021-11-05 15:44:05,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:44:05,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:44:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:44:06,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:44:06,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:44:06,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102543971] [2021-11-05 15:44:06,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102543971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:44:06,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:44:06,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:44:06,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803434786] [2021-11-05 15:44:06,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:44:06,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:44:06,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:44:06,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:44:06,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:06,207 INFO L87 Difference]: Start difference. First operand has 953 states, 943 states have (on average 1.2629904559915164) internal successors, (1191), 952 states have internal predecessors, (1191), 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 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:07,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:44:07,336 INFO L93 Difference]: Finished difference Result 2836 states and 3547 transitions. [2021-11-05 15:44:07,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:44:07,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2021-11-05 15:44:07,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:44:07,359 INFO L225 Difference]: With dead ends: 2836 [2021-11-05 15:44:07,359 INFO L226 Difference]: Without dead ends: 1882 [2021-11-05 15:44:07,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:07,372 INFO L933 BasicCegarLoop]: 1164 mSDtfsCounter, 1141 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 910.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.97ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 980.03ms IncrementalHoareTripleChecker+Time [2021-11-05 15:44:07,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1141 Valid, 2317 Invalid, 15 Unknown, 0 Unchecked, 19.97ms Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 980.03ms Time] [2021-11-05 15:44:07,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2021-11-05 15:44:07,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1870. [2021-11-05 15:44:07,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1861 states have (on average 1.2364320257925847) internal successors, (2301), 1869 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:07,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2301 transitions. [2021-11-05 15:44:07,465 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2301 transitions. Word has length 12 [2021-11-05 15:44:07,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:44:07,465 INFO L470 AbstractCegarLoop]: Abstraction has 1870 states and 2301 transitions. [2021-11-05 15:44:07,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:07,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2301 transitions. [2021-11-05 15:44:07,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-05 15:44:07,467 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:44:07,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:44:07,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 15:44:07,467 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 15:44:07,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:44:07,468 INFO L85 PathProgramCache]: Analyzing trace with hash 451769504, now seen corresponding path program 1 times [2021-11-05 15:44:07,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:44:07,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981241658] [2021-11-05 15:44:07,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:44:07,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:44:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:44:07,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:44:07,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:44:07,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981241658] [2021-11-05 15:44:07,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981241658] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:44:07,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:44:07,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:44:07,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855913987] [2021-11-05 15:44:07,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:44:07,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:44:07,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:44:07,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:44:07,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:07,637 INFO L87 Difference]: Start difference. First operand 1870 states and 2301 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:09,100 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:44:09,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:44:09,282 INFO L93 Difference]: Finished difference Result 1870 states and 2301 transitions. [2021-11-05 15:44:09,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:44:09,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-11-05 15:44:09,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:44:09,290 INFO L225 Difference]: With dead ends: 1870 [2021-11-05 15:44:09,290 INFO L226 Difference]: Without dead ends: 1868 [2021-11-05 15:44:09,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:09,292 INFO L933 BasicCegarLoop]: 1160 mSDtfsCounter, 1147 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1469.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.65ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1551.51ms IncrementalHoareTripleChecker+Time [2021-11-05 15:44:09,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 1160 Invalid, 2 Unknown, 0 Unchecked, 15.65ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1551.51ms Time] [2021-11-05 15:44:09,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2021-11-05 15:44:09,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1868. [2021-11-05 15:44:09,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1860 states have (on average 1.2360215053763441) internal successors, (2299), 1867 states have internal predecessors, (2299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:09,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2299 transitions. [2021-11-05 15:44:09,339 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2299 transitions. Word has length 16 [2021-11-05 15:44:09,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:44:09,340 INFO L470 AbstractCegarLoop]: Abstraction has 1868 states and 2299 transitions. [2021-11-05 15:44:09,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:09,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2299 transitions. [2021-11-05 15:44:09,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-05 15:44:09,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:44:09,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:44:09,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 15:44:09,347 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 15:44:09,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:44:09,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1119953770, now seen corresponding path program 1 times [2021-11-05 15:44:09,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:44:09,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037385918] [2021-11-05 15:44:09,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:44:09,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:44:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:44:09,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:44:09,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:44:09,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037385918] [2021-11-05 15:44:09,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037385918] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:44:09,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:44:09,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:44:09,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009568643] [2021-11-05 15:44:09,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:44:09,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:44:09,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:44:09,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:44:09,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:09,432 INFO L87 Difference]: Start difference. First operand 1868 states and 2299 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:10,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:44:10,349 INFO L93 Difference]: Finished difference Result 1868 states and 2299 transitions. [2021-11-05 15:44:10,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:44:10,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-05 15:44:10,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:44:10,356 INFO L225 Difference]: With dead ends: 1868 [2021-11-05 15:44:10,356 INFO L226 Difference]: Without dead ends: 1866 [2021-11-05 15:44:10,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:10,358 INFO L933 BasicCegarLoop]: 1158 mSDtfsCounter, 1144 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 813.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.40ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 875.87ms IncrementalHoareTripleChecker+Time [2021-11-05 15:44:10,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 1158 Invalid, 2 Unknown, 0 Unchecked, 2.40ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 875.87ms Time] [2021-11-05 15:44:10,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2021-11-05 15:44:10,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1866. [2021-11-05 15:44:10,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 1859 states have (on average 1.235610543302851) internal successors, (2297), 1865 states have internal predecessors, (2297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:10,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2297 transitions. [2021-11-05 15:44:10,439 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2297 transitions. Word has length 17 [2021-11-05 15:44:10,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:44:10,439 INFO L470 AbstractCegarLoop]: Abstraction has 1866 states and 2297 transitions. [2021-11-05 15:44:10,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:10,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2297 transitions. [2021-11-05 15:44:10,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-05 15:44:10,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:44:10,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:44:10,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 15:44:10,441 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 15:44:10,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:44:10,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1501511651, now seen corresponding path program 1 times [2021-11-05 15:44:10,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:44:10,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890772203] [2021-11-05 15:44:10,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:44:10,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:44:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:44:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:44:10,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:44:10,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890772203] [2021-11-05 15:44:10,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890772203] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:44:10,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:44:10,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:44:10,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62100948] [2021-11-05 15:44:10,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:44:10,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:44:10,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:44:10,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:44:10,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:10,504 INFO L87 Difference]: Start difference. First operand 1866 states and 2297 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:10,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:44:10,641 INFO L93 Difference]: Finished difference Result 5361 states and 6587 transitions. [2021-11-05 15:44:10,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:44:10,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-05 15:44:10,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:44:10,653 INFO L225 Difference]: With dead ends: 5361 [2021-11-05 15:44:10,653 INFO L226 Difference]: Without dead ends: 3498 [2021-11-05 15:44:10,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:10,664 INFO L933 BasicCegarLoop]: 1162 mSDtfsCounter, 999 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 2303 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.65ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.06ms IncrementalHoareTripleChecker+Time [2021-11-05 15:44:10,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 2303 Invalid, 17 Unknown, 0 Unchecked, 3.65ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 38.06ms Time] [2021-11-05 15:44:10,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3498 states. [2021-11-05 15:44:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3498 to 3492. [2021-11-05 15:44:10,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3492 states, 3485 states have (on average 1.2298421807747488) internal successors, (4286), 3491 states have internal predecessors, (4286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:10,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3492 states to 3492 states and 4286 transitions. [2021-11-05 15:44:10,819 INFO L78 Accepts]: Start accepts. Automaton has 3492 states and 4286 transitions. Word has length 17 [2021-11-05 15:44:10,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:44:10,820 INFO L470 AbstractCegarLoop]: Abstraction has 3492 states and 4286 transitions. [2021-11-05 15:44:10,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:10,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3492 states and 4286 transitions. [2021-11-05 15:44:10,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-05 15:44:10,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:44:10,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:44:10,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 15:44:10,821 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 15:44:10,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:44:10,822 INFO L85 PathProgramCache]: Analyzing trace with hash 358829546, now seen corresponding path program 1 times [2021-11-05 15:44:10,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:44:10,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447628246] [2021-11-05 15:44:10,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:44:10,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:44:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:44:10,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:44:10,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:44:10,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447628246] [2021-11-05 15:44:10,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447628246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:44:10,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:44:10,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:44:10,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823848245] [2021-11-05 15:44:10,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:44:10,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:44:10,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:44:10,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:44:10,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:10,874 INFO L87 Difference]: Start difference. First operand 3492 states and 4286 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:11,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:44:11,898 INFO L93 Difference]: Finished difference Result 10434 states and 12815 transitions. [2021-11-05 15:44:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:44:11,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-11-05 15:44:11,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:44:11,916 INFO L225 Difference]: With dead ends: 10434 [2021-11-05 15:44:11,916 INFO L226 Difference]: Without dead ends: 6941 [2021-11-05 15:44:11,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:11,923 INFO L933 BasicCegarLoop]: 1240 mSDtfsCounter, 1127 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 781.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.12ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 846.50ms IncrementalHoareTripleChecker+Time [2021-11-05 15:44:11,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1127 Valid, 2366 Invalid, 32 Unknown, 0 Unchecked, 4.12ms Time], IncrementalHoareTripleChecker [12 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 846.50ms Time] [2021-11-05 15:44:11,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6941 states. [2021-11-05 15:44:12,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6941 to 6876. [2021-11-05 15:44:12,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6876 states, 6869 states have (on average 1.227980783229) internal successors, (8435), 6875 states have internal predecessors, (8435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:12,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6876 states to 6876 states and 8435 transitions. [2021-11-05 15:44:12,123 INFO L78 Accepts]: Start accepts. Automaton has 6876 states and 8435 transitions. Word has length 18 [2021-11-05 15:44:12,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:44:12,124 INFO L470 AbstractCegarLoop]: Abstraction has 6876 states and 8435 transitions. [2021-11-05 15:44:12,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:12,124 INFO L276 IsEmpty]: Start isEmpty. Operand 6876 states and 8435 transitions. [2021-11-05 15:44:12,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-05 15:44:12,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:44:12,126 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:44:12,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 15:44:12,126 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 15:44:12,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:44:12,126 INFO L85 PathProgramCache]: Analyzing trace with hash -650167165, now seen corresponding path program 1 times [2021-11-05 15:44:12,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:44:12,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674078469] [2021-11-05 15:44:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:44:12,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:44:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:44:12,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:44:12,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:44:12,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674078469] [2021-11-05 15:44:12,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674078469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:44:12,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:44:12,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:44:12,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552823188] [2021-11-05 15:44:12,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:44:12,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:44:12,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:44:12,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:44:12,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:12,182 INFO L87 Difference]: Start difference. First operand 6876 states and 8435 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:14,198 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 [] [2021-11-05 15:44:14,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:44:14,524 INFO L93 Difference]: Finished difference Result 17047 states and 20928 transitions. [2021-11-05 15:44:14,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:44:14,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-11-05 15:44:14,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:44:14,548 INFO L225 Difference]: With dead ends: 17047 [2021-11-05 15:44:14,549 INFO L226 Difference]: Without dead ends: 10174 [2021-11-05 15:44:14,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:14,559 INFO L933 BasicCegarLoop]: 2155 mSDtfsCounter, 1010 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2033.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 3297 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.15ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2110.60ms IncrementalHoareTripleChecker+Time [2021-11-05 15:44:14,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 3297 Invalid, 25 Unknown, 0 Unchecked, 4.15ms Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 2110.60ms Time] [2021-11-05 15:44:14,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10174 states. [2021-11-05 15:44:14,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10174 to 10168. [2021-11-05 15:44:14,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10168 states, 10161 states have (on average 1.227339828757012) internal successors, (12471), 10167 states have internal predecessors, (12471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:14,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10168 states to 10168 states and 12471 transitions. [2021-11-05 15:44:14,856 INFO L78 Accepts]: Start accepts. Automaton has 10168 states and 12471 transitions. Word has length 37 [2021-11-05 15:44:14,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:44:14,856 INFO L470 AbstractCegarLoop]: Abstraction has 10168 states and 12471 transitions. [2021-11-05 15:44:14,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:14,856 INFO L276 IsEmpty]: Start isEmpty. Operand 10168 states and 12471 transitions. [2021-11-05 15:44:14,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-05 15:44:14,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:44:14,859 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-05 15:44:14,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 15:44:14,860 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 15:44:14,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:44:14,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1314083201, now seen corresponding path program 1 times [2021-11-05 15:44:14,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:44:14,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322776734] [2021-11-05 15:44:14,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:44:14,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:44:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:44:14,939 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-05 15:44:14,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:44:14,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322776734] [2021-11-05 15:44:14,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322776734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:44:14,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:44:14,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:44:14,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844990945] [2021-11-05 15:44:14,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:44:14,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 15:44:14,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:44:14,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 15:44:14,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:44:14,941 INFO L87 Difference]: Start difference. First operand 10168 states and 12471 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:15,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:44:15,442 INFO L93 Difference]: Finished difference Result 30338 states and 37207 transitions. [2021-11-05 15:44:15,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 15:44:15,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-05 15:44:15,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:44:15,484 INFO L225 Difference]: With dead ends: 30338 [2021-11-05 15:44:15,485 INFO L226 Difference]: Without dead ends: 20173 [2021-11-05 15:44:15,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.52ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:44:15,507 INFO L933 BasicCegarLoop]: 2232 mSDtfsCounter, 2286 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.03ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.05ms IncrementalHoareTripleChecker+Time [2021-11-05 15:44:15,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2286 Valid, 3322 Invalid, 5 Unknown, 0 Unchecked, 6.03ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 9.05ms Time] [2021-11-05 15:44:15,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20173 states. [2021-11-05 15:44:15,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20173 to 10168. [2021-11-05 15:44:15,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10168 states, 10161 states have (on average 1.2270445822261589) internal successors, (12468), 10167 states have internal predecessors, (12468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:15,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10168 states to 10168 states and 12468 transitions. [2021-11-05 15:44:15,944 INFO L78 Accepts]: Start accepts. Automaton has 10168 states and 12468 transitions. Word has length 49 [2021-11-05 15:44:15,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:44:15,944 INFO L470 AbstractCegarLoop]: Abstraction has 10168 states and 12468 transitions. [2021-11-05 15:44:15,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:15,945 INFO L276 IsEmpty]: Start isEmpty. Operand 10168 states and 12468 transitions. [2021-11-05 15:44:15,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-05 15:44:15,947 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:44:15,948 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-05 15:44:15,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 15:44:15,948 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 15:44:15,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:44:15,948 INFO L85 PathProgramCache]: Analyzing trace with hash 2071652828, now seen corresponding path program 1 times [2021-11-05 15:44:15,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:44:15,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962691857] [2021-11-05 15:44:15,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:44:15,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:44:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:44:16,029 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-05 15:44:16,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:44:16,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962691857] [2021-11-05 15:44:16,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962691857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:44:16,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:44:16,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:44:16,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305373927] [2021-11-05 15:44:16,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:44:16,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:44:16,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:44:16,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:44:16,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:16,031 INFO L87 Difference]: Start difference. First operand 10168 states and 12468 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) [2021-11-05 15:44:18,047 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 [] [2021-11-05 15:44:18,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:44:18,496 INFO L93 Difference]: Finished difference Result 20333 states and 24933 transitions. [2021-11-05 15:44:18,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:44:18,497 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 50 [2021-11-05 15:44:18,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:44:18,512 INFO L225 Difference]: With dead ends: 20333 [2021-11-05 15:44:18,512 INFO L226 Difference]: Without dead ends: 10168 [2021-11-05 15:44:18,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:44:18,525 INFO L933 BasicCegarLoop]: 2186 mSDtfsCounter, 1121 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2027.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 3315 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.01ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2109.15ms IncrementalHoareTripleChecker+Time [2021-11-05 15:44:18,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1121 Valid, 3315 Invalid, 25 Unknown, 0 Unchecked, 3.01ms Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 2109.15ms Time] [2021-11-05 15:44:18,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10168 states. [2021-11-05 15:44:18,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10168 to 10152. [2021-11-05 15:44:18,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10152 states, 10145 states have (on average 1.2260226712666338) internal successors, (12438), 10151 states have internal predecessors, (12438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:18,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10152 states to 10152 states and 12438 transitions. [2021-11-05 15:44:18,862 INFO L78 Accepts]: Start accepts. Automaton has 10152 states and 12438 transitions. Word has length 50 [2021-11-05 15:44:18,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:44:18,863 INFO L470 AbstractCegarLoop]: Abstraction has 10152 states and 12438 transitions. [2021-11-05 15:44:18,863 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) [2021-11-05 15:44:18,863 INFO L276 IsEmpty]: Start isEmpty. Operand 10152 states and 12438 transitions. [2021-11-05 15:44:18,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-05 15:44:18,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:44:18,865 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-05 15:44:18,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 15:44:18,866 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 15:44:18,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:44:18,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1678625818, now seen corresponding path program 1 times [2021-11-05 15:44:18,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:44:18,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151394090] [2021-11-05 15:44:18,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:44:18,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:44:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:44:18,947 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-05 15:44:18,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:44:18,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151394090] [2021-11-05 15:44:18,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151394090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:44:18,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:44:18,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 15:44:18,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466550306] [2021-11-05 15:44:18,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:44:18,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 15:44:18,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:44:18,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 15:44:18,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:44:18,950 INFO L87 Difference]: Start difference. First operand 10152 states and 12438 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:19,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:44:19,893 INFO L93 Difference]: Finished difference Result 30077 states and 36856 transitions. [2021-11-05 15:44:19,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 15:44:19,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 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 50 [2021-11-05 15:44:19,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:44:19,945 INFO L225 Difference]: With dead ends: 30077 [2021-11-05 15:44:19,946 INFO L226 Difference]: Without dead ends: 30043 [2021-11-05 15:44:19,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.71ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 15:44:19,957 INFO L933 BasicCegarLoop]: 2323 mSDtfsCounter, 6356 mSDsluCounter, 6667 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6356 SdHoareTripleChecker+Valid, 8990 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.44ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.20ms IncrementalHoareTripleChecker+Time [2021-11-05 15:44:19,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6356 Valid, 8990 Invalid, 31 Unknown, 0 Unchecked, 12.44ms Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 38.20ms Time] [2021-11-05 15:44:19,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30043 states. [2021-11-05 15:44:20,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30043 to 10118. [2021-11-05 15:44:20,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10118 states, 10113 states have (on average 1.2257490358943934) internal successors, (12396), 10117 states have internal predecessors, (12396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:20,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10118 states to 10118 states and 12396 transitions. [2021-11-05 15:44:20,509 INFO L78 Accepts]: Start accepts. Automaton has 10118 states and 12396 transitions. Word has length 50 [2021-11-05 15:44:20,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:44:20,510 INFO L470 AbstractCegarLoop]: Abstraction has 10118 states and 12396 transitions. [2021-11-05 15:44:20,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:20,510 INFO L276 IsEmpty]: Start isEmpty. Operand 10118 states and 12396 transitions. [2021-11-05 15:44:20,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-05 15:44:20,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:44:20,513 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:44:20,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 15:44:20,514 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 15:44:20,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:44:20,514 INFO L85 PathProgramCache]: Analyzing trace with hash -589985648, now seen corresponding path program 1 times [2021-11-05 15:44:20,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:44:20,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737907507] [2021-11-05 15:44:20,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:44:20,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:44:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:44:20,612 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 15:44:20,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:44:20,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737907507] [2021-11-05 15:44:20,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737907507] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:44:20,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:44:20,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 15:44:20,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88636676] [2021-11-05 15:44:20,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:44:20,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 15:44:20,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:44:20,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 15:44:20,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:44:20,614 INFO L87 Difference]: Start difference. First operand 10118 states and 12396 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:21,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:44:21,781 INFO L93 Difference]: Finished difference Result 30014 states and 36783 transitions. [2021-11-05 15:44:21,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 15:44:21,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 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 52 [2021-11-05 15:44:21,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:44:21,834 INFO L225 Difference]: With dead ends: 30014 [2021-11-05 15:44:21,834 INFO L226 Difference]: Without dead ends: 29983 [2021-11-05 15:44:21,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.40ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 15:44:21,848 INFO L933 BasicCegarLoop]: 3289 mSDtfsCounter, 5291 mSDsluCounter, 6608 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5291 SdHoareTripleChecker+Valid, 9897 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.90ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.24ms IncrementalHoareTripleChecker+Time [2021-11-05 15:44:21,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5291 Valid, 9897 Invalid, 31 Unknown, 0 Unchecked, 10.90ms Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 25.24ms Time] [2021-11-05 15:44:21,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29983 states. [2021-11-05 15:44:22,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29983 to 10087. [2021-11-05 15:44:22,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10087 states, 10084 states have (on average 1.2256049186830622) internal successors, (12359), 10086 states have internal predecessors, (12359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:22,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10087 states to 10087 states and 12359 transitions. [2021-11-05 15:44:22,611 INFO L78 Accepts]: Start accepts. Automaton has 10087 states and 12359 transitions. Word has length 52 [2021-11-05 15:44:22,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:44:22,612 INFO L470 AbstractCegarLoop]: Abstraction has 10087 states and 12359 transitions. [2021-11-05 15:44:22,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:22,612 INFO L276 IsEmpty]: Start isEmpty. Operand 10087 states and 12359 transitions. [2021-11-05 15:44:22,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-05 15:44:22,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:44:22,617 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:44:22,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 15:44:22,617 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 15:44:22,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:44:22,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1593145156, now seen corresponding path program 1 times [2021-11-05 15:44:22,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:44:22,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029965518] [2021-11-05 15:44:22,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:44:22,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:44:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:44:22,683 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-05 15:44:22,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:44:22,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029965518] [2021-11-05 15:44:22,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029965518] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:44:22,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:44:22,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 15:44:22,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425877118] [2021-11-05 15:44:22,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:44:22,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 15:44:22,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:44:22,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 15:44:22,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:44:22,685 INFO L87 Difference]: Start difference. First operand 10087 states and 12359 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 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) [2021-11-05 15:44:25,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:44:25,028 INFO L93 Difference]: Finished difference Result 49849 states and 61092 transitions. [2021-11-05 15:44:25,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 15:44:25,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 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 56 [2021-11-05 15:44:25,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:44:25,112 INFO L225 Difference]: With dead ends: 49849 [2021-11-05 15:44:25,112 INFO L226 Difference]: Without dead ends: 44898 [2021-11-05 15:44:25,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.00ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 15:44:25,138 INFO L933 BasicCegarLoop]: 3272 mSDtfsCounter, 7590 mSDsluCounter, 7458 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7590 SdHoareTripleChecker+Valid, 10730 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.68ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.66ms IncrementalHoareTripleChecker+Time [2021-11-05 15:44:25,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7590 Valid, 10730 Invalid, 34 Unknown, 0 Unchecked, 14.68ms Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 39.66ms Time] [2021-11-05 15:44:25,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44898 states. [2021-11-05 15:44:25,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44898 to 10085. [2021-11-05 15:44:25,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10085 states, 10082 states have (on average 1.225451299345368) internal successors, (12355), 10084 states have internal predecessors, (12355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:25,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10085 states to 10085 states and 12355 transitions. [2021-11-05 15:44:25,978 INFO L78 Accepts]: Start accepts. Automaton has 10085 states and 12355 transitions. Word has length 56 [2021-11-05 15:44:25,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:44:25,978 INFO L470 AbstractCegarLoop]: Abstraction has 10085 states and 12355 transitions. [2021-11-05 15:44:25,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 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) [2021-11-05 15:44:25,980 INFO L276 IsEmpty]: Start isEmpty. Operand 10085 states and 12355 transitions. [2021-11-05 15:44:25,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 15:44:25,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:44:25,984 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:44:25,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 15:44:25,984 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 15:44:25,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:44:25,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1715764559, now seen corresponding path program 1 times [2021-11-05 15:44:25,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:44:25,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184788625] [2021-11-05 15:44:25,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:44:25,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:44:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:44:26,092 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 15:44:26,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:44:26,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184788625] [2021-11-05 15:44:26,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184788625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:44:26,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:44:26,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 15:44:26,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703060894] [2021-11-05 15:44:26,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:44:26,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 15:44:26,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:44:26,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 15:44:26,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:44:26,093 INFO L87 Difference]: Start difference. First operand 10085 states and 12355 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:27,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:44:27,739 INFO L93 Difference]: Finished difference Result 25034 states and 30673 transitions. [2021-11-05 15:44:27,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 15:44:27,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-05 15:44:27,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:44:27,740 INFO L225 Difference]: With dead ends: 25034 [2021-11-05 15:44:27,740 INFO L226 Difference]: Without dead ends: 0 [2021-11-05 15:44:27,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.75ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 15:44:27,767 INFO L933 BasicCegarLoop]: 3260 mSDtfsCounter, 5435 mSDsluCounter, 6353 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5435 SdHoareTripleChecker+Valid, 9613 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.45ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.22ms IncrementalHoareTripleChecker+Time [2021-11-05 15:44:27,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5435 Valid, 9613 Invalid, 30 Unknown, 0 Unchecked, 11.45ms Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 26.22ms Time] [2021-11-05 15:44:27,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-05 15:44:27,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-05 15:44:27,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:27,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-05 15:44:27,769 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-11-05 15:44:27,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:44:27,769 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-05 15:44:27,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:44:27,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-05 15:44:27,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-05 15:44:27,771 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2021-11-05 15:44:27,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2021-11-05 15:44:27,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2021-11-05 15:44:27,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (5 of 9 remaining) [2021-11-05 15:44:27,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2021-11-05 15:44:27,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2021-11-05 15:44:27,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2021-11-05 15:44:27,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2021-11-05 15:44:27,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2021-11-05 15:44:27,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 15:44:27,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15