./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg --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 32bit --witnessprinter.graph.data.programhash 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:41:31,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:41:31,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:41:31,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:41:31,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:41:31,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:41:31,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:41:31,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:41:31,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:41:31,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:41:31,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:41:31,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:41:31,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:41:31,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:41:31,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:41:31,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:41:31,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:41:31,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:41:31,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:41:31,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:41:31,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:41:31,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:41:31,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:41:31,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:41:31,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:41:31,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:41:31,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:41:31,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:41:31,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:41:31,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:41:31,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:41:31,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:41:31,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:41:31,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:41:31,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:41:31,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:41:31,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:41:31,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:41:31,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:41:31,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:41:31,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:41:31,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:41:31,431 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:41:31,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:41:31,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:41:31,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:41:31,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:41:31,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:41:31,433 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:41:31,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:41:31,434 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:41:31,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:41:31,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:41:31,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:41:31,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:41:31,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:41:31,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:41:31,436 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:41:31,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:41:31,436 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:41:31,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:41:31,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:41:31,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:41:31,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:41:31,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:41:31,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:41:31,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:41:31,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:41:31,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:41:31,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:41:31,439 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:41:31,439 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:41:31,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:41:31,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:41:31,440 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 [2021-10-28 09:41:31,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:41:31,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:41:31,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:41:31,775 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:41:31,776 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:41:31,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-10-28 09:41:31,871 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/data/7be5bbb04/17d2b5235d5442b78185212250229d27/FLAG7d12450d9 [2021-10-28 09:41:32,471 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:41:32,471 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-10-28 09:41:32,490 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/data/7be5bbb04/17d2b5235d5442b78185212250229d27/FLAG7d12450d9 [2021-10-28 09:41:32,750 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/data/7be5bbb04/17d2b5235d5442b78185212250229d27 [2021-10-28 09:41:32,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:41:32,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:41:32,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:41:32,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:41:32,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:41:32,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:41:32" (1/1) ... [2021-10-28 09:41:32,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bee0e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:32, skipping insertion in model container [2021-10-28 09:41:32,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:41:32" (1/1) ... [2021-10-28 09:41:32,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:41:32,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:41:33,268 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-10-28 09:41:33,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:41:33,283 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:41:33,390 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-10-28 09:41:33,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:41:33,410 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:41:33,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:33 WrapperNode [2021-10-28 09:41:33,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:41:33,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:41:33,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:41:33,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:41:33,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:33" (1/1) ... [2021-10-28 09:41:33,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:33" (1/1) ... [2021-10-28 09:41:33,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:41:33,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:41:33,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:41:33,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:41:33,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:33" (1/1) ... [2021-10-28 09:41:33,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:33" (1/1) ... [2021-10-28 09:41:33,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:33" (1/1) ... [2021-10-28 09:41:33,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:33" (1/1) ... [2021-10-28 09:41:33,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:33" (1/1) ... [2021-10-28 09:41:33,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:33" (1/1) ... [2021-10-28 09:41:33,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:33" (1/1) ... [2021-10-28 09:41:33,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:41:33,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:41:33,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:41:33,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:41:33,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:33" (1/1) ... [2021-10-28 09:41:33,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:41:33,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:33,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:33,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:41:33,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:41:33,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:41:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:41:33,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:41:34,164 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,195 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,201 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,205 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,207 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,207 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,222 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,236 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,239 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,243 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,246 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,248 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,253 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,256 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,258 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,260 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,262 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,265 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,266 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,266 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,269 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,272 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,274 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,277 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,279 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,282 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,285 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,286 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,287 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:34,289 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:41:35,805 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##658: assume !false; [2021-10-28 09:41:35,805 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##657: assume false; [2021-10-28 09:41:35,805 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##665: assume !false; [2021-10-28 09:41:35,806 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##664: assume false; [2021-10-28 09:41:35,806 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##683: assume false; [2021-10-28 09:41:35,806 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##684: assume !false; [2021-10-28 09:41:35,806 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##609: assume false; [2021-10-28 09:41:35,806 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##610: assume !false; [2021-10-28 09:41:35,806 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##639: assume false; [2021-10-28 09:41:35,807 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##640: assume !false; [2021-10-28 09:41:35,807 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2021-10-28 09:41:35,807 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2021-10-28 09:41:35,807 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2021-10-28 09:41:35,807 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2021-10-28 09:41:35,808 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume !false; [2021-10-28 09:41:35,808 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##284: assume false; [2021-10-28 09:41:35,808 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##229: assume !false; [2021-10-28 09:41:35,808 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume false; [2021-10-28 09:41:35,808 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2021-10-28 09:41:35,809 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2021-10-28 09:41:35,809 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##369: assume !false; [2021-10-28 09:41:35,809 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume !false; [2021-10-28 09:41:35,809 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##374: assume false; [2021-10-28 09:41:35,809 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2021-10-28 09:41:35,810 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2021-10-28 09:41:35,810 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##357: assume false; [2021-10-28 09:41:35,810 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##358: assume !false; [2021-10-28 09:41:35,810 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##368: assume false; [2021-10-28 09:41:35,810 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##404: assume !false; [2021-10-28 09:41:35,811 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##403: assume false; [2021-10-28 09:41:35,811 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##427: assume !false; [2021-10-28 09:41:35,811 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##426: assume false; [2021-10-28 09:41:35,811 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume !false; [2021-10-28 09:41:35,811 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##435: assume false; [2021-10-28 09:41:35,812 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##439: assume false; [2021-10-28 09:41:35,812 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##440: assume !false; [2021-10-28 09:41:35,812 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2021-10-28 09:41:35,812 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2021-10-28 09:41:35,812 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##485: assume !false; [2021-10-28 09:41:35,813 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##484: assume false; [2021-10-28 09:41:35,813 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##524: assume !false; [2021-10-28 09:41:35,813 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##523: assume false; [2021-10-28 09:41:35,813 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##558: assume !false; [2021-10-28 09:41:35,813 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##557: assume false; [2021-10-28 09:41:35,814 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume !false; [2021-10-28 09:41:35,814 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##186: assume false; [2021-10-28 09:41:35,814 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume !false; [2021-10-28 09:41:35,814 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume false; [2021-10-28 09:41:35,814 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##144: assume false; [2021-10-28 09:41:35,815 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##145: assume !false; [2021-10-28 09:41:35,815 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2021-10-28 09:41:35,815 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2021-10-28 09:41:35,815 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2021-10-28 09:41:35,815 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2021-10-28 09:41:35,815 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2021-10-28 09:41:35,816 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2021-10-28 09:41:35,816 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##588: assume !false; [2021-10-28 09:41:35,816 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##587: assume false; [2021-10-28 09:41:35,816 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2021-10-28 09:41:35,816 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2021-10-28 09:41:35,830 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:41:35,830 INFO L299 CfgBuilder]: Removed 277 assume(true) statements. [2021-10-28 09:41:35,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:41:35 BoogieIcfgContainer [2021-10-28 09:41:35,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:41:35,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:41:35,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:41:35,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:41:35,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:41:32" (1/3) ... [2021-10-28 09:41:35,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80f9a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:41:35, skipping insertion in model container [2021-10-28 09:41:35,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:33" (2/3) ... [2021-10-28 09:41:35,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80f9a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:41:35, skipping insertion in model container [2021-10-28 09:41:35,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:41:35" (3/3) ... [2021-10-28 09:41:35,844 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2021-10-28 09:41:35,849 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:41:35,850 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2021-10-28 09:41:35,904 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:41:35,910 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 [2021-10-28 09:41:35,911 INFO L340 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2021-10-28 09:41:35,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 572 states, 517 states have (on average 1.6034816247582204) internal successors, (829), 571 states have internal predecessors, (829), 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) [2021-10-28 09:41:35,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:41:35,967 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:35,968 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:35,969 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:35,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:35,975 INFO L85 PathProgramCache]: Analyzing trace with hash 538056098, now seen corresponding path program 1 times [2021-10-28 09:41:35,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:35,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745609131] [2021-10-28 09:41:35,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:35,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:36,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:36,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745609131] [2021-10-28 09:41:36,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745609131] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:36,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:36,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:36,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060651234] [2021-10-28 09:41:36,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:36,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:36,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:36,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:36,233 INFO L87 Difference]: Start difference. First operand has 572 states, 517 states have (on average 1.6034816247582204) internal successors, (829), 571 states have internal predecessors, (829), 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 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-28 09:41:36,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:36,740 INFO L93 Difference]: Finished difference Result 1136 states and 1626 transitions. [2021-10-28 09:41:36,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:36,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-10-28 09:41:36,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:36,770 INFO L225 Difference]: With dead ends: 1136 [2021-10-28 09:41:36,770 INFO L226 Difference]: Without dead ends: 692 [2021-10-28 09:41:36,780 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:36,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2021-10-28 09:41:36,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 666. [2021-10-28 09:41:36,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 631 states have (on average 1.434231378763867) internal successors, (905), 665 states have internal predecessors, (905), 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) [2021-10-28 09:41:36,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 905 transitions. [2021-10-28 09:41:36,908 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 905 transitions. Word has length 10 [2021-10-28 09:41:36,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:36,909 INFO L470 AbstractCegarLoop]: Abstraction has 666 states and 905 transitions. [2021-10-28 09:41:36,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-28 09:41:36,910 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 905 transitions. [2021-10-28 09:41:36,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 09:41:36,911 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:36,911 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:36,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:41:36,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:36,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:36,918 INFO L85 PathProgramCache]: Analyzing trace with hash 369677969, now seen corresponding path program 1 times [2021-10-28 09:41:36,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:36,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144076747] [2021-10-28 09:41:36,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:36,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:37,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:37,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:37,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144076747] [2021-10-28 09:41:37,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144076747] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:37,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:37,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:37,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780885477] [2021-10-28 09:41:37,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:37,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:37,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:37,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:37,017 INFO L87 Difference]: Start difference. First operand 666 states and 905 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-10-28 09:41:37,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:37,056 INFO L93 Difference]: Finished difference Result 688 states and 930 transitions. [2021-10-28 09:41:37,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:37,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-10-28 09:41:37,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:37,061 INFO L225 Difference]: With dead ends: 688 [2021-10-28 09:41:37,061 INFO L226 Difference]: Without dead ends: 666 [2021-10-28 09:41:37,062 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:37,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-10-28 09:41:37,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2021-10-28 09:41:37,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 631 states have (on average 1.432646592709984) internal successors, (904), 665 states have internal predecessors, (904), 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) [2021-10-28 09:41:37,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 904 transitions. [2021-10-28 09:41:37,114 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 904 transitions. Word has length 11 [2021-10-28 09:41:37,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:37,114 INFO L470 AbstractCegarLoop]: Abstraction has 666 states and 904 transitions. [2021-10-28 09:41:37,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-10-28 09:41:37,115 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 904 transitions. [2021-10-28 09:41:37,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 09:41:37,116 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:37,116 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:37,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:41:37,117 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:37,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:37,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1535696421, now seen corresponding path program 1 times [2021-10-28 09:41:37,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:37,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036833307] [2021-10-28 09:41:37,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:37,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:37,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:37,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036833307] [2021-10-28 09:41:37,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036833307] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:37,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:37,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:37,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391827775] [2021-10-28 09:41:37,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:37,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:37,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:37,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:37,260 INFO L87 Difference]: Start difference. First operand 666 states and 904 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) [2021-10-28 09:41:37,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:37,329 INFO L93 Difference]: Finished difference Result 762 states and 1022 transitions. [2021-10-28 09:41:37,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:37,330 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 [2021-10-28 09:41:37,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:37,335 INFO L225 Difference]: With dead ends: 762 [2021-10-28 09:41:37,335 INFO L226 Difference]: Without dead ends: 735 [2021-10-28 09:41:37,336 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:37,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-10-28 09:41:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 686. [2021-10-28 09:41:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 654 states have (on average 1.4388379204892967) internal successors, (941), 685 states have internal predecessors, (941), 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) [2021-10-28 09:41:37,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 941 transitions. [2021-10-28 09:41:37,376 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 941 transitions. Word has length 16 [2021-10-28 09:41:37,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:37,376 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 941 transitions. [2021-10-28 09:41:37,376 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) [2021-10-28 09:41:37,377 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 941 transitions. [2021-10-28 09:41:37,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:41:37,378 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:37,379 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:37,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:41:37,379 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:37,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:37,380 INFO L85 PathProgramCache]: Analyzing trace with hash 107438083, now seen corresponding path program 1 times [2021-10-28 09:41:37,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:37,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107412823] [2021-10-28 09:41:37,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:37,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:37,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:37,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:37,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107412823] [2021-10-28 09:41:37,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107412823] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:37,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:37,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:37,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758685196] [2021-10-28 09:41:37,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:37,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:37,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:37,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:37,465 INFO L87 Difference]: Start difference. First operand 686 states and 941 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-28 09:41:37,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:37,680 INFO L93 Difference]: Finished difference Result 723 states and 987 transitions. [2021-10-28 09:41:37,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:37,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-10-28 09:41:37,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:37,685 INFO L225 Difference]: With dead ends: 723 [2021-10-28 09:41:37,686 INFO L226 Difference]: Without dead ends: 718 [2021-10-28 09:41:37,687 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:37,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-10-28 09:41:37,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 715. [2021-10-28 09:41:37,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 683 states have (on average 1.4333821376281113) internal successors, (979), 714 states have internal predecessors, (979), 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) [2021-10-28 09:41:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 979 transitions. [2021-10-28 09:41:37,744 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 979 transitions. Word has length 19 [2021-10-28 09:41:37,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:37,745 INFO L470 AbstractCegarLoop]: Abstraction has 715 states and 979 transitions. [2021-10-28 09:41:37,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-28 09:41:37,745 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 979 transitions. [2021-10-28 09:41:37,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:41:37,751 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:37,752 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:37,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:41:37,752 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:37,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:37,754 INFO L85 PathProgramCache]: Analyzing trace with hash 98463890, now seen corresponding path program 1 times [2021-10-28 09:41:37,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:37,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333338374] [2021-10-28 09:41:37,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:37,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:37,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:37,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:37,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333338374] [2021-10-28 09:41:37,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333338374] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:37,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:37,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:37,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088764218] [2021-10-28 09:41:37,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:37,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:37,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:37,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:37,885 INFO L87 Difference]: Start difference. First operand 715 states and 979 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-28 09:41:37,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:37,979 INFO L93 Difference]: Finished difference Result 1230 states and 1671 transitions. [2021-10-28 09:41:37,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:37,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-10-28 09:41:37,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:37,985 INFO L225 Difference]: With dead ends: 1230 [2021-10-28 09:41:37,986 INFO L226 Difference]: Without dead ends: 858 [2021-10-28 09:41:37,987 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:37,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2021-10-28 09:41:38,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 697. [2021-10-28 09:41:38,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 675 states have (on average 1.4148148148148147) internal successors, (955), 696 states have internal predecessors, (955), 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) [2021-10-28 09:41:38,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 955 transitions. [2021-10-28 09:41:38,028 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 955 transitions. Word has length 19 [2021-10-28 09:41:38,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:38,029 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 955 transitions. [2021-10-28 09:41:38,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-28 09:41:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 955 transitions. [2021-10-28 09:41:38,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 09:41:38,031 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:38,031 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:38,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:41:38,033 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:38,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:38,033 INFO L85 PathProgramCache]: Analyzing trace with hash -946806949, now seen corresponding path program 1 times [2021-10-28 09:41:38,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:38,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175854415] [2021-10-28 09:41:38,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:38,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:38,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:38,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:38,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175854415] [2021-10-28 09:41:38,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175854415] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:38,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:38,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:38,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664014867] [2021-10-28 09:41:38,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:38,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:38,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:38,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:38,149 INFO L87 Difference]: Start difference. First operand 697 states and 955 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-10-28 09:41:38,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:38,416 INFO L93 Difference]: Finished difference Result 709 states and 965 transitions. [2021-10-28 09:41:38,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:38,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2021-10-28 09:41:38,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:38,421 INFO L225 Difference]: With dead ends: 709 [2021-10-28 09:41:38,421 INFO L226 Difference]: Without dead ends: 700 [2021-10-28 09:41:38,422 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:38,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-10-28 09:41:38,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 697. [2021-10-28 09:41:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 675 states have (on average 1.411851851851852) internal successors, (953), 696 states have internal predecessors, (953), 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) [2021-10-28 09:41:38,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 953 transitions. [2021-10-28 09:41:38,468 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 953 transitions. Word has length 20 [2021-10-28 09:41:38,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:38,468 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 953 transitions. [2021-10-28 09:41:38,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-10-28 09:41:38,469 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 953 transitions. [2021-10-28 09:41:38,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 09:41:38,470 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:38,470 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:38,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:41:38,470 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:38,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:38,471 INFO L85 PathProgramCache]: Analyzing trace with hash 180793810, now seen corresponding path program 1 times [2021-10-28 09:41:38,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:38,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234192319] [2021-10-28 09:41:38,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:38,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:38,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:38,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234192319] [2021-10-28 09:41:38,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234192319] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:38,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:38,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:38,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62409601] [2021-10-28 09:41:38,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:38,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:38,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:38,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:38,572 INFO L87 Difference]: Start difference. First operand 697 states and 953 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-10-28 09:41:38,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:38,790 INFO L93 Difference]: Finished difference Result 709 states and 963 transitions. [2021-10-28 09:41:38,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:38,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2021-10-28 09:41:38,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:38,802 INFO L225 Difference]: With dead ends: 709 [2021-10-28 09:41:38,802 INFO L226 Difference]: Without dead ends: 700 [2021-10-28 09:41:38,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:38,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-10-28 09:41:38,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 697. [2021-10-28 09:41:38,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 675 states have (on average 1.4088888888888889) internal successors, (951), 696 states have internal predecessors, (951), 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) [2021-10-28 09:41:38,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 951 transitions. [2021-10-28 09:41:38,857 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 951 transitions. Word has length 21 [2021-10-28 09:41:38,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:38,858 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 951 transitions. [2021-10-28 09:41:38,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-10-28 09:41:38,858 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 951 transitions. [2021-10-28 09:41:38,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 09:41:38,859 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:38,859 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:38,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:41:38,860 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:38,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:38,861 INFO L85 PathProgramCache]: Analyzing trace with hash 945683314, now seen corresponding path program 1 times [2021-10-28 09:41:38,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:38,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458826060] [2021-10-28 09:41:38,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:38,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:38,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:38,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:38,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458826060] [2021-10-28 09:41:38,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458826060] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:38,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:38,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:38,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144472576] [2021-10-28 09:41:38,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:38,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:38,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:38,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:38,916 INFO L87 Difference]: Start difference. First operand 697 states and 951 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-28 09:41:38,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:38,997 INFO L93 Difference]: Finished difference Result 709 states and 962 transitions. [2021-10-28 09:41:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:38,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2021-10-28 09:41:38,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:39,002 INFO L225 Difference]: With dead ends: 709 [2021-10-28 09:41:39,002 INFO L226 Difference]: Without dead ends: 689 [2021-10-28 09:41:39,003 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:39,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2021-10-28 09:41:39,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 689. [2021-10-28 09:41:39,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 667 states have (on average 1.4107946026986506) internal successors, (941), 688 states have internal predecessors, (941), 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) [2021-10-28 09:41:39,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 941 transitions. [2021-10-28 09:41:39,058 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 941 transitions. Word has length 22 [2021-10-28 09:41:39,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:39,059 INFO L470 AbstractCegarLoop]: Abstraction has 689 states and 941 transitions. [2021-10-28 09:41:39,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-28 09:41:39,059 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 941 transitions. [2021-10-28 09:41:39,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:41:39,060 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:39,061 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:39,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:41:39,061 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:39,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:39,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2136813194, now seen corresponding path program 1 times [2021-10-28 09:41:39,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:39,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497245071] [2021-10-28 09:41:39,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:39,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:39,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:39,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497245071] [2021-10-28 09:41:39,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497245071] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:39,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:39,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:39,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843618663] [2021-10-28 09:41:39,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:39,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:39,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:39,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:39,104 INFO L87 Difference]: Start difference. First operand 689 states and 941 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-28 09:41:39,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:39,304 INFO L93 Difference]: Finished difference Result 689 states and 941 transitions. [2021-10-28 09:41:39,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:39,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2021-10-28 09:41:39,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:39,309 INFO L225 Difference]: With dead ends: 689 [2021-10-28 09:41:39,309 INFO L226 Difference]: Without dead ends: 673 [2021-10-28 09:41:39,309 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:39,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2021-10-28 09:41:39,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2021-10-28 09:41:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 659 states have (on average 1.402124430955994) internal successors, (924), 672 states have internal predecessors, (924), 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) [2021-10-28 09:41:39,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 924 transitions. [2021-10-28 09:41:39,352 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 924 transitions. Word has length 23 [2021-10-28 09:41:39,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:39,353 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 924 transitions. [2021-10-28 09:41:39,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-28 09:41:39,353 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 924 transitions. [2021-10-28 09:41:39,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:41:39,354 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:39,354 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:39,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:41:39,355 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:39,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:39,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1371761021, now seen corresponding path program 1 times [2021-10-28 09:41:39,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:39,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904331301] [2021-10-28 09:41:39,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:39,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:39,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:39,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904331301] [2021-10-28 09:41:39,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904331301] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:39,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:39,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:39,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964773356] [2021-10-28 09:41:39,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:39,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:39,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:39,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:39,403 INFO L87 Difference]: Start difference. First operand 673 states and 924 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-28 09:41:39,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:39,486 INFO L93 Difference]: Finished difference Result 806 states and 1074 transitions. [2021-10-28 09:41:39,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:41:39,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2021-10-28 09:41:39,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:39,492 INFO L225 Difference]: With dead ends: 806 [2021-10-28 09:41:39,493 INFO L226 Difference]: Without dead ends: 755 [2021-10-28 09:41:39,494 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:39,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2021-10-28 09:41:39,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 675. [2021-10-28 09:41:39,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 661 states have (on average 1.4009077155824508) internal successors, (926), 674 states have internal predecessors, (926), 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) [2021-10-28 09:41:39,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 926 transitions. [2021-10-28 09:41:39,540 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 926 transitions. Word has length 25 [2021-10-28 09:41:39,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:39,541 INFO L470 AbstractCegarLoop]: Abstraction has 675 states and 926 transitions. [2021-10-28 09:41:39,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-28 09:41:39,541 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 926 transitions. [2021-10-28 09:41:39,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 09:41:39,545 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:39,545 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:39,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 09:41:39,546 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:39,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:39,546 INFO L85 PathProgramCache]: Analyzing trace with hash 458344375, now seen corresponding path program 1 times [2021-10-28 09:41:39,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:39,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305281164] [2021-10-28 09:41:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:39,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:39,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:39,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305281164] [2021-10-28 09:41:39,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305281164] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:39,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:39,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:39,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650238531] [2021-10-28 09:41:39,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:39,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:39,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:39,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:39,599 INFO L87 Difference]: Start difference. First operand 675 states and 926 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-28 09:41:39,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:39,662 INFO L93 Difference]: Finished difference Result 688 states and 938 transitions. [2021-10-28 09:41:39,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:39,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2021-10-28 09:41:39,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:39,667 INFO L225 Difference]: With dead ends: 688 [2021-10-28 09:41:39,667 INFO L226 Difference]: Without dead ends: 673 [2021-10-28 09:41:39,668 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:39,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2021-10-28 09:41:39,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2021-10-28 09:41:39,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 659 states have (on average 1.4006069802731411) internal successors, (923), 672 states have internal predecessors, (923), 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) [2021-10-28 09:41:39,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 923 transitions. [2021-10-28 09:41:39,708 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 923 transitions. Word has length 26 [2021-10-28 09:41:39,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:39,708 INFO L470 AbstractCegarLoop]: Abstraction has 673 states and 923 transitions. [2021-10-28 09:41:39,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-28 09:41:39,708 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 923 transitions. [2021-10-28 09:41:39,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 09:41:39,709 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:39,709 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:39,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 09:41:39,710 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:39,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:39,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2044140679, now seen corresponding path program 1 times [2021-10-28 09:41:39,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:39,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247969738] [2021-10-28 09:41:39,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:39,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:39,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:39,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:39,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247969738] [2021-10-28 09:41:39,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247969738] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:39,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:39,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:39,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931794092] [2021-10-28 09:41:39,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:39,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:39,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:39,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:39,769 INFO L87 Difference]: Start difference. First operand 673 states and 923 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-28 09:41:39,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:39,837 INFO L93 Difference]: Finished difference Result 711 states and 962 transitions. [2021-10-28 09:41:39,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:39,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2021-10-28 09:41:39,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:39,842 INFO L225 Difference]: With dead ends: 711 [2021-10-28 09:41:39,842 INFO L226 Difference]: Without dead ends: 690 [2021-10-28 09:41:39,844 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:39,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2021-10-28 09:41:39,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 675. [2021-10-28 09:41:39,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 661 states have (on average 1.399394856278366) internal successors, (925), 674 states have internal predecessors, (925), 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) [2021-10-28 09:41:39,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 925 transitions. [2021-10-28 09:41:39,893 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 925 transitions. Word has length 27 [2021-10-28 09:41:39,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:39,895 INFO L470 AbstractCegarLoop]: Abstraction has 675 states and 925 transitions. [2021-10-28 09:41:39,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-28 09:41:39,896 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 925 transitions. [2021-10-28 09:41:39,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 09:41:39,898 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:39,898 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:39,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 09:41:39,898 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:39,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:39,899 INFO L85 PathProgramCache]: Analyzing trace with hash -610986493, now seen corresponding path program 1 times [2021-10-28 09:41:39,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:39,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463723446] [2021-10-28 09:41:39,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:39,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:39,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:39,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:39,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463723446] [2021-10-28 09:41:39,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463723446] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:39,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:39,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:39,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942878227] [2021-10-28 09:41:39,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:39,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:39,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:39,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:39,960 INFO L87 Difference]: Start difference. First operand 675 states and 925 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-10-28 09:41:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:40,011 INFO L93 Difference]: Finished difference Result 708 states and 960 transitions. [2021-10-28 09:41:40,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:40,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2021-10-28 09:41:40,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:40,016 INFO L225 Difference]: With dead ends: 708 [2021-10-28 09:41:40,016 INFO L226 Difference]: Without dead ends: 666 [2021-10-28 09:41:40,017 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:40,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-10-28 09:41:40,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 661. [2021-10-28 09:41:40,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 647 states have (on average 1.39258114374034) internal successors, (901), 660 states have internal predecessors, (901), 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) [2021-10-28 09:41:40,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 901 transitions. [2021-10-28 09:41:40,060 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 901 transitions. Word has length 27 [2021-10-28 09:41:40,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:40,060 INFO L470 AbstractCegarLoop]: Abstraction has 661 states and 901 transitions. [2021-10-28 09:41:40,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-10-28 09:41:40,061 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 901 transitions. [2021-10-28 09:41:40,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 09:41:40,062 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:40,062 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:40,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 09:41:40,062 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:40,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:40,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1636712997, now seen corresponding path program 1 times [2021-10-28 09:41:40,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:40,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877711670] [2021-10-28 09:41:40,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:40,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:40,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:40,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:40,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877711670] [2021-10-28 09:41:40,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877711670] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:40,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:40,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:40,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045536005] [2021-10-28 09:41:40,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:40,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:40,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:40,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:40,121 INFO L87 Difference]: Start difference. First operand 661 states and 901 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 09:41:40,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:40,193 INFO L93 Difference]: Finished difference Result 699 states and 940 transitions. [2021-10-28 09:41:40,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:40,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2021-10-28 09:41:40,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:40,198 INFO L225 Difference]: With dead ends: 699 [2021-10-28 09:41:40,198 INFO L226 Difference]: Without dead ends: 678 [2021-10-28 09:41:40,199 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:40,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2021-10-28 09:41:40,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 661. [2021-10-28 09:41:40,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 647 states have (on average 1.39258114374034) internal successors, (901), 660 states have internal predecessors, (901), 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) [2021-10-28 09:41:40,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 901 transitions. [2021-10-28 09:41:40,237 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 901 transitions. Word has length 28 [2021-10-28 09:41:40,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:40,238 INFO L470 AbstractCegarLoop]: Abstraction has 661 states and 901 transitions. [2021-10-28 09:41:40,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 09:41:40,238 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 901 transitions. [2021-10-28 09:41:40,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 09:41:40,239 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:40,240 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:40,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 09:41:40,240 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:40,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:40,241 INFO L85 PathProgramCache]: Analyzing trace with hash 830792837, now seen corresponding path program 1 times [2021-10-28 09:41:40,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:40,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638621130] [2021-10-28 09:41:40,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:40,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:40,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:40,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:40,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638621130] [2021-10-28 09:41:40,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638621130] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:40,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:40,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:40,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013507866] [2021-10-28 09:41:40,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:40,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:40,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:40,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:40,278 INFO L87 Difference]: Start difference. First operand 661 states and 901 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-10-28 09:41:40,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:40,480 INFO L93 Difference]: Finished difference Result 840 states and 1143 transitions. [2021-10-28 09:41:40,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:40,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2021-10-28 09:41:40,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:40,486 INFO L225 Difference]: With dead ends: 840 [2021-10-28 09:41:40,486 INFO L226 Difference]: Without dead ends: 832 [2021-10-28 09:41:40,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:40,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2021-10-28 09:41:40,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 679. [2021-10-28 09:41:40,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 665 states have (on average 1.3954887218045113) internal successors, (928), 678 states have internal predecessors, (928), 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) [2021-10-28 09:41:40,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 928 transitions. [2021-10-28 09:41:40,535 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 928 transitions. Word has length 28 [2021-10-28 09:41:40,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:40,535 INFO L470 AbstractCegarLoop]: Abstraction has 679 states and 928 transitions. [2021-10-28 09:41:40,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-10-28 09:41:40,536 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 928 transitions. [2021-10-28 09:41:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 09:41:40,537 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:40,537 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:40,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 09:41:40,537 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:40,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:40,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1706944907, now seen corresponding path program 1 times [2021-10-28 09:41:40,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:40,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948535602] [2021-10-28 09:41:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:40,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:40,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:40,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:40,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948535602] [2021-10-28 09:41:40,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948535602] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:40,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:40,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:40,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980554409] [2021-10-28 09:41:40,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:40,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:40,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:40,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:40,574 INFO L87 Difference]: Start difference. First operand 679 states and 928 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 09:41:40,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:40,634 INFO L93 Difference]: Finished difference Result 692 states and 940 transitions. [2021-10-28 09:41:40,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:40,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2021-10-28 09:41:40,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:40,639 INFO L225 Difference]: With dead ends: 692 [2021-10-28 09:41:40,639 INFO L226 Difference]: Without dead ends: 677 [2021-10-28 09:41:40,639 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:40,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2021-10-28 09:41:40,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 677. [2021-10-28 09:41:40,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 663 states have (on average 1.3951734539969833) internal successors, (925), 676 states have internal predecessors, (925), 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) [2021-10-28 09:41:40,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 925 transitions. [2021-10-28 09:41:40,678 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 925 transitions. Word has length 28 [2021-10-28 09:41:40,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:40,679 INFO L470 AbstractCegarLoop]: Abstraction has 677 states and 925 transitions. [2021-10-28 09:41:40,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 09:41:40,679 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 925 transitions. [2021-10-28 09:41:40,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 09:41:40,680 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:40,680 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:40,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 09:41:40,681 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:40,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:40,681 INFO L85 PathProgramCache]: Analyzing trace with hash -22883762, now seen corresponding path program 1 times [2021-10-28 09:41:40,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:40,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728584351] [2021-10-28 09:41:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:40,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:40,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:40,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:40,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728584351] [2021-10-28 09:41:40,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728584351] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:40,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:40,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:40,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363646059] [2021-10-28 09:41:40,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:40,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:40,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:40,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:40,738 INFO L87 Difference]: Start difference. First operand 677 states and 925 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-10-28 09:41:41,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:41,007 INFO L93 Difference]: Finished difference Result 962 states and 1282 transitions. [2021-10-28 09:41:41,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:41,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2021-10-28 09:41:41,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:41,012 INFO L225 Difference]: With dead ends: 962 [2021-10-28 09:41:41,012 INFO L226 Difference]: Without dead ends: 711 [2021-10-28 09:41:41,013 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:41,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2021-10-28 09:41:41,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 660. [2021-10-28 09:41:41,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 647 states have (on average 1.3740340030911902) internal successors, (889), 659 states have internal predecessors, (889), 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) [2021-10-28 09:41:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 889 transitions. [2021-10-28 09:41:41,071 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 889 transitions. Word has length 29 [2021-10-28 09:41:41,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:41,072 INFO L470 AbstractCegarLoop]: Abstraction has 660 states and 889 transitions. [2021-10-28 09:41:41,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-10-28 09:41:41,072 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 889 transitions. [2021-10-28 09:41:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 09:41:41,073 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:41,073 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:41,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 09:41:41,073 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:41,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:41,074 INFO L85 PathProgramCache]: Analyzing trace with hash -879074465, now seen corresponding path program 1 times [2021-10-28 09:41:41,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:41,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720811485] [2021-10-28 09:41:41,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:41,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:41,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:41,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:41,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720811485] [2021-10-28 09:41:41,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720811485] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:41,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:41,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:41:41,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600555924] [2021-10-28 09:41:41,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:41:41,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:41,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:41:41,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:41,134 INFO L87 Difference]: Start difference. First operand 660 states and 889 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-10-28 09:41:41,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:41,243 INFO L93 Difference]: Finished difference Result 677 states and 905 transitions. [2021-10-28 09:41:41,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:41:41,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-10-28 09:41:41,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:41,248 INFO L225 Difference]: With dead ends: 677 [2021-10-28 09:41:41,248 INFO L226 Difference]: Without dead ends: 660 [2021-10-28 09:41:41,249 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:41,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2021-10-28 09:41:41,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 660. [2021-10-28 09:41:41,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 647 states have (on average 1.3554868624420402) internal successors, (877), 659 states have internal predecessors, (877), 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) [2021-10-28 09:41:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 877 transitions. [2021-10-28 09:41:41,296 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 877 transitions. Word has length 31 [2021-10-28 09:41:41,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:41,296 INFO L470 AbstractCegarLoop]: Abstraction has 660 states and 877 transitions. [2021-10-28 09:41:41,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-10-28 09:41:41,296 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 877 transitions. [2021-10-28 09:41:41,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 09:41:41,298 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:41,298 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:41,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 09:41:41,298 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:41,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:41,299 INFO L85 PathProgramCache]: Analyzing trace with hash 932056973, now seen corresponding path program 1 times [2021-10-28 09:41:41,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:41,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237940136] [2021-10-28 09:41:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:41,300 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:41,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:41,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:41,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237940136] [2021-10-28 09:41:41,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237940136] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:41,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:41,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:41,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080729518] [2021-10-28 09:41:41,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:41,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:41,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:41,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:41,362 INFO L87 Difference]: Start difference. First operand 660 states and 877 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-10-28 09:41:41,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:41,612 INFO L93 Difference]: Finished difference Result 732 states and 957 transitions. [2021-10-28 09:41:41,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:41,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2021-10-28 09:41:41,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:41,617 INFO L225 Difference]: With dead ends: 732 [2021-10-28 09:41:41,617 INFO L226 Difference]: Without dead ends: 662 [2021-10-28 09:41:41,617 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:41,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-10-28 09:41:41,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 660. [2021-10-28 09:41:41,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 647 states have (on average 1.3415765069551777) internal successors, (868), 659 states have internal predecessors, (868), 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) [2021-10-28 09:41:41,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 868 transitions. [2021-10-28 09:41:41,662 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 868 transitions. Word has length 31 [2021-10-28 09:41:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:41,662 INFO L470 AbstractCegarLoop]: Abstraction has 660 states and 868 transitions. [2021-10-28 09:41:41,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-10-28 09:41:41,663 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 868 transitions. [2021-10-28 09:41:41,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 09:41:41,664 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:41,664 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:41,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 09:41:41,664 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:41,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:41,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1700782205, now seen corresponding path program 1 times [2021-10-28 09:41:41,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:41,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744277986] [2021-10-28 09:41:41,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:41,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:41,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:41,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:41,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744277986] [2021-10-28 09:41:41,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744277986] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:41,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:41,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:41,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842008506] [2021-10-28 09:41:41,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:41,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:41,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:41,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:41,712 INFO L87 Difference]: Start difference. First operand 660 states and 868 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-10-28 09:41:41,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:41,882 INFO L93 Difference]: Finished difference Result 868 states and 1144 transitions. [2021-10-28 09:41:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:41,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-10-28 09:41:41,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:41,886 INFO L225 Difference]: With dead ends: 868 [2021-10-28 09:41:41,886 INFO L226 Difference]: Without dead ends: 662 [2021-10-28 09:41:41,887 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:41,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-10-28 09:41:41,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2021-10-28 09:41:41,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 651 states have (on average 1.337941628264209) internal successors, (871), 661 states have internal predecessors, (871), 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) [2021-10-28 09:41:41,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 871 transitions. [2021-10-28 09:41:41,933 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 871 transitions. Word has length 31 [2021-10-28 09:41:41,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:41,933 INFO L470 AbstractCegarLoop]: Abstraction has 662 states and 871 transitions. [2021-10-28 09:41:41,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-10-28 09:41:41,934 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 871 transitions. [2021-10-28 09:41:41,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 09:41:41,935 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:41,935 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:41,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-28 09:41:41,935 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:41,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:41,936 INFO L85 PathProgramCache]: Analyzing trace with hash -191087949, now seen corresponding path program 1 times [2021-10-28 09:41:41,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:41,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373020281] [2021-10-28 09:41:41,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:41,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:41,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:41,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:41,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373020281] [2021-10-28 09:41:41,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373020281] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:41,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:41,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:41:41,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725114453] [2021-10-28 09:41:41,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:41:41,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:41,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:41:41,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:41:41,988 INFO L87 Difference]: Start difference. First operand 662 states and 871 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2021-10-28 09:41:42,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:42,122 INFO L93 Difference]: Finished difference Result 729 states and 940 transitions. [2021-10-28 09:41:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:41:42,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2021-10-28 09:41:42,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:42,126 INFO L225 Difference]: With dead ends: 729 [2021-10-28 09:41:42,126 INFO L226 Difference]: Without dead ends: 683 [2021-10-28 09:41:42,127 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:41:42,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2021-10-28 09:41:42,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 650. [2021-10-28 09:41:42,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 639 states have (on average 1.3348982785602503) internal successors, (853), 649 states have internal predecessors, (853), 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) [2021-10-28 09:41:42,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 853 transitions. [2021-10-28 09:41:42,175 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 853 transitions. Word has length 32 [2021-10-28 09:41:42,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:42,175 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 853 transitions. [2021-10-28 09:41:42,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2021-10-28 09:41:42,176 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 853 transitions. [2021-10-28 09:41:42,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 09:41:42,177 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:42,177 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:42,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-28 09:41:42,178 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:42,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:42,178 INFO L85 PathProgramCache]: Analyzing trace with hash -311747134, now seen corresponding path program 1 times [2021-10-28 09:41:42,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:42,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936196129] [2021-10-28 09:41:42,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:42,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:42,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:42,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:42,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936196129] [2021-10-28 09:41:42,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936196129] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:42,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:42,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:41:42,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569212531] [2021-10-28 09:41:42,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:41:42,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:42,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:41:42,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:41:42,251 INFO L87 Difference]: Start difference. First operand 650 states and 853 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2021-10-28 09:41:42,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:42,365 INFO L93 Difference]: Finished difference Result 662 states and 864 transitions. [2021-10-28 09:41:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:41:42,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2021-10-28 09:41:42,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:42,369 INFO L225 Difference]: With dead ends: 662 [2021-10-28 09:41:42,369 INFO L226 Difference]: Without dead ends: 641 [2021-10-28 09:41:42,370 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:41:42,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2021-10-28 09:41:42,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2021-10-28 09:41:42,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 630 states have (on average 1.3349206349206348) internal successors, (841), 640 states have internal predecessors, (841), 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) [2021-10-28 09:41:42,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 841 transitions. [2021-10-28 09:41:42,420 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 841 transitions. Word has length 32 [2021-10-28 09:41:42,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:42,420 INFO L470 AbstractCegarLoop]: Abstraction has 641 states and 841 transitions. [2021-10-28 09:41:42,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2021-10-28 09:41:42,421 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 841 transitions. [2021-10-28 09:41:42,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 09:41:42,422 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:42,422 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:42,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-28 09:41:42,423 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:42,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:42,423 INFO L85 PathProgramCache]: Analyzing trace with hash -909472821, now seen corresponding path program 1 times [2021-10-28 09:41:42,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:42,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756174532] [2021-10-28 09:41:42,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:42,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:42,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:42,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:42,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756174532] [2021-10-28 09:41:42,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756174532] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:42,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:42,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:42,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872063592] [2021-10-28 09:41:42,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:42,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:42,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:42,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:42,456 INFO L87 Difference]: Start difference. First operand 641 states and 841 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-10-28 09:41:42,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:42,522 INFO L93 Difference]: Finished difference Result 821 states and 1071 transitions. [2021-10-28 09:41:42,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:42,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2021-10-28 09:41:42,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:42,526 INFO L225 Difference]: With dead ends: 821 [2021-10-28 09:41:42,526 INFO L226 Difference]: Without dead ends: 617 [2021-10-28 09:41:42,527 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:42,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2021-10-28 09:41:42,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 601. [2021-10-28 09:41:42,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 590 states have (on average 1.3271186440677967) internal successors, (783), 600 states have internal predecessors, (783), 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) [2021-10-28 09:41:42,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 783 transitions. [2021-10-28 09:41:42,570 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 783 transitions. Word has length 32 [2021-10-28 09:41:42,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:42,570 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 783 transitions. [2021-10-28 09:41:42,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-10-28 09:41:42,571 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 783 transitions. [2021-10-28 09:41:42,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 09:41:42,572 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:42,572 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:42,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-28 09:41:42,572 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:42,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:42,573 INFO L85 PathProgramCache]: Analyzing trace with hash -353842307, now seen corresponding path program 1 times [2021-10-28 09:41:42,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:42,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130588880] [2021-10-28 09:41:42,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:42,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:42,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:42,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:42,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130588880] [2021-10-28 09:41:42,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130588880] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:42,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:42,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:41:42,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417390908] [2021-10-28 09:41:42,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:41:42,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:42,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:41:42,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:42,616 INFO L87 Difference]: Start difference. First operand 601 states and 783 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2021-10-28 09:41:42,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:42,699 INFO L93 Difference]: Finished difference Result 644 states and 827 transitions. [2021-10-28 09:41:42,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:41:42,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 33 [2021-10-28 09:41:42,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:42,703 INFO L225 Difference]: With dead ends: 644 [2021-10-28 09:41:42,703 INFO L226 Difference]: Without dead ends: 620 [2021-10-28 09:41:42,704 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:42,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2021-10-28 09:41:42,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 601. [2021-10-28 09:41:42,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 590 states have (on average 1.3254237288135593) internal successors, (782), 600 states have internal predecessors, (782), 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) [2021-10-28 09:41:42,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 782 transitions. [2021-10-28 09:41:42,762 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 782 transitions. Word has length 33 [2021-10-28 09:41:42,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:42,763 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 782 transitions. [2021-10-28 09:41:42,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2021-10-28 09:41:42,763 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 782 transitions. [2021-10-28 09:41:42,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 09:41:42,764 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:42,764 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:42,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-28 09:41:42,765 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:42,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:42,765 INFO L85 PathProgramCache]: Analyzing trace with hash -56726392, now seen corresponding path program 1 times [2021-10-28 09:41:42,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:42,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678572806] [2021-10-28 09:41:42,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:42,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:42,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:42,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678572806] [2021-10-28 09:41:42,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678572806] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:42,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:42,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:42,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290528892] [2021-10-28 09:41:42,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:42,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:42,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:42,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:42,799 INFO L87 Difference]: Start difference. First operand 601 states and 782 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-10-28 09:41:42,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:42,975 INFO L93 Difference]: Finished difference Result 732 states and 939 transitions. [2021-10-28 09:41:42,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:42,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2021-10-28 09:41:42,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:42,980 INFO L225 Difference]: With dead ends: 732 [2021-10-28 09:41:42,980 INFO L226 Difference]: Without dead ends: 712 [2021-10-28 09:41:42,981 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:42,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2021-10-28 09:41:43,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 651. [2021-10-28 09:41:43,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 640 states have (on average 1.309375) internal successors, (838), 650 states have internal predecessors, (838), 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) [2021-10-28 09:41:43,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 838 transitions. [2021-10-28 09:41:43,031 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 838 transitions. Word has length 33 [2021-10-28 09:41:43,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:43,031 INFO L470 AbstractCegarLoop]: Abstraction has 651 states and 838 transitions. [2021-10-28 09:41:43,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-10-28 09:41:43,031 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 838 transitions. [2021-10-28 09:41:43,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 09:41:43,032 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:43,032 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:43,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-28 09:41:43,033 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:43,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:43,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1257835912, now seen corresponding path program 1 times [2021-10-28 09:41:43,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:43,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382192942] [2021-10-28 09:41:43,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:43,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:43,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:43,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382192942] [2021-10-28 09:41:43,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382192942] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:43,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:43,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:43,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528811608] [2021-10-28 09:41:43,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:43,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:43,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:43,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:43,065 INFO L87 Difference]: Start difference. First operand 651 states and 838 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-10-28 09:41:43,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:43,262 INFO L93 Difference]: Finished difference Result 1258 states and 1614 transitions. [2021-10-28 09:41:43,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:43,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2021-10-28 09:41:43,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:43,268 INFO L225 Difference]: With dead ends: 1258 [2021-10-28 09:41:43,268 INFO L226 Difference]: Without dead ends: 984 [2021-10-28 09:41:43,269 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:43,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2021-10-28 09:41:43,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 688. [2021-10-28 09:41:43,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 677 states have (on average 1.3116691285081241) internal successors, (888), 687 states have internal predecessors, (888), 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) [2021-10-28 09:41:43,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 888 transitions. [2021-10-28 09:41:43,343 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 888 transitions. Word has length 33 [2021-10-28 09:41:43,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:43,344 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 888 transitions. [2021-10-28 09:41:43,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-10-28 09:41:43,344 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 888 transitions. [2021-10-28 09:41:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 09:41:43,345 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:43,345 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:43,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-28 09:41:43,346 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:43,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:43,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1516001350, now seen corresponding path program 1 times [2021-10-28 09:41:43,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:43,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914183195] [2021-10-28 09:41:43,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:43,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:43,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:43,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:43,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914183195] [2021-10-28 09:41:43,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914183195] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:43,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:43,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:43,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907237722] [2021-10-28 09:41:43,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:43,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:43,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:43,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:43,387 INFO L87 Difference]: Start difference. First operand 688 states and 888 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-10-28 09:41:43,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:43,589 INFO L93 Difference]: Finished difference Result 712 states and 912 transitions. [2021-10-28 09:41:43,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:43,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2021-10-28 09:41:43,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:43,596 INFO L225 Difference]: With dead ends: 712 [2021-10-28 09:41:43,597 INFO L226 Difference]: Without dead ends: 625 [2021-10-28 09:41:43,597 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:43,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-10-28 09:41:43,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 607. [2021-10-28 09:41:43,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 596 states have (on average 1.2969798657718121) internal successors, (773), 606 states have internal predecessors, (773), 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) [2021-10-28 09:41:43,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 773 transitions. [2021-10-28 09:41:43,649 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 773 transitions. Word has length 33 [2021-10-28 09:41:43,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:43,649 INFO L470 AbstractCegarLoop]: Abstraction has 607 states and 773 transitions. [2021-10-28 09:41:43,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-10-28 09:41:43,650 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 773 transitions. [2021-10-28 09:41:43,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 09:41:43,651 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:43,651 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:43,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-28 09:41:43,652 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:43,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:43,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1740926462, now seen corresponding path program 1 times [2021-10-28 09:41:43,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:43,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181746487] [2021-10-28 09:41:43,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:43,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:43,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:43,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:43,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181746487] [2021-10-28 09:41:43,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181746487] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:43,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:43,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:41:43,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794121287] [2021-10-28 09:41:43,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:41:43,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:43,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:41:43,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:41:43,709 INFO L87 Difference]: Start difference. First operand 607 states and 773 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-28 09:41:43,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:43,955 INFO L93 Difference]: Finished difference Result 645 states and 809 transitions. [2021-10-28 09:41:43,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:41:43,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 34 [2021-10-28 09:41:43,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:43,959 INFO L225 Difference]: With dead ends: 645 [2021-10-28 09:41:43,959 INFO L226 Difference]: Without dead ends: 642 [2021-10-28 09:41:43,960 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:41:43,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2021-10-28 09:41:44,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 612. [2021-10-28 09:41:44,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 601 states have (on average 1.2945091514143094) internal successors, (778), 611 states have internal predecessors, (778), 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) [2021-10-28 09:41:44,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 778 transitions. [2021-10-28 09:41:44,022 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 778 transitions. Word has length 34 [2021-10-28 09:41:44,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:44,022 INFO L470 AbstractCegarLoop]: Abstraction has 612 states and 778 transitions. [2021-10-28 09:41:44,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-28 09:41:44,022 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 778 transitions. [2021-10-28 09:41:44,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 09:41:44,024 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:44,024 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:44,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-28 09:41:44,024 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:44,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:44,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1740938378, now seen corresponding path program 1 times [2021-10-28 09:41:44,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:44,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018296793] [2021-10-28 09:41:44,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:44,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:44,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:44,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018296793] [2021-10-28 09:41:44,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018296793] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:44,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:44,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:41:44,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424490932] [2021-10-28 09:41:44,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:41:44,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:44,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:41:44,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:41:44,082 INFO L87 Difference]: Start difference. First operand 612 states and 778 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-28 09:41:44,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:44,386 INFO L93 Difference]: Finished difference Result 895 states and 1122 transitions. [2021-10-28 09:41:44,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:41:44,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 34 [2021-10-28 09:41:44,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:44,392 INFO L225 Difference]: With dead ends: 895 [2021-10-28 09:41:44,393 INFO L226 Difference]: Without dead ends: 872 [2021-10-28 09:41:44,395 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:41:44,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2021-10-28 09:41:44,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 610. [2021-10-28 09:41:44,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 599 states have (on average 1.2921535893155258) internal successors, (774), 609 states have internal predecessors, (774), 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) [2021-10-28 09:41:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 774 transitions. [2021-10-28 09:41:44,459 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 774 transitions. Word has length 34 [2021-10-28 09:41:44,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:44,459 INFO L470 AbstractCegarLoop]: Abstraction has 610 states and 774 transitions. [2021-10-28 09:41:44,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-28 09:41:44,460 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 774 transitions. [2021-10-28 09:41:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-28 09:41:44,461 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:44,461 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:44,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-28 09:41:44,463 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:44,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:44,463 INFO L85 PathProgramCache]: Analyzing trace with hash -935530627, now seen corresponding path program 1 times [2021-10-28 09:41:44,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:44,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911563410] [2021-10-28 09:41:44,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:44,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:44,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:44,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:44,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911563410] [2021-10-28 09:41:44,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911563410] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:44,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:44,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:44,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693258005] [2021-10-28 09:41:44,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:44,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:44,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:44,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:44,532 INFO L87 Difference]: Start difference. First operand 610 states and 774 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2021-10-28 09:41:44,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:44,762 INFO L93 Difference]: Finished difference Result 670 states and 852 transitions. [2021-10-28 09:41:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:44,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2021-10-28 09:41:44,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:44,767 INFO L225 Difference]: With dead ends: 670 [2021-10-28 09:41:44,767 INFO L226 Difference]: Without dead ends: 629 [2021-10-28 09:41:44,768 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:44,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2021-10-28 09:41:44,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 576. [2021-10-28 09:41:44,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 565 states have (on average 1.2991150442477877) internal successors, (734), 575 states have internal predecessors, (734), 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) [2021-10-28 09:41:44,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 734 transitions. [2021-10-28 09:41:44,861 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 734 transitions. Word has length 35 [2021-10-28 09:41:44,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:44,862 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 734 transitions. [2021-10-28 09:41:44,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2021-10-28 09:41:44,863 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 734 transitions. [2021-10-28 09:41:44,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-28 09:41:44,864 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:44,865 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:44,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-28 09:41:44,865 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:44,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:44,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1333490113, now seen corresponding path program 1 times [2021-10-28 09:41:44,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:44,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112854678] [2021-10-28 09:41:44,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:44,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:44,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:44,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:44,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112854678] [2021-10-28 09:41:44,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112854678] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:44,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:44,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:41:44,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281053926] [2021-10-28 09:41:44,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:41:44,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:44,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:41:44,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:44,924 INFO L87 Difference]: Start difference. First operand 576 states and 734 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-28 09:41:45,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:45,232 INFO L93 Difference]: Finished difference Result 1269 states and 1627 transitions. [2021-10-28 09:41:45,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:41:45,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2021-10-28 09:41:45,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:45,240 INFO L225 Difference]: With dead ends: 1269 [2021-10-28 09:41:45,240 INFO L226 Difference]: Without dead ends: 1083 [2021-10-28 09:41:45,241 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:41:45,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2021-10-28 09:41:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 583. [2021-10-28 09:41:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 572 states have (on average 1.2954545454545454) internal successors, (741), 582 states have internal predecessors, (741), 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) [2021-10-28 09:41:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 741 transitions. [2021-10-28 09:41:45,303 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 741 transitions. Word has length 35 [2021-10-28 09:41:45,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:45,303 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 741 transitions. [2021-10-28 09:41:45,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-28 09:41:45,304 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 741 transitions. [2021-10-28 09:41:45,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 09:41:45,305 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:45,305 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:45,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-28 09:41:45,306 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:45,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:45,306 INFO L85 PathProgramCache]: Analyzing trace with hash -901089383, now seen corresponding path program 1 times [2021-10-28 09:41:45,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:45,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714937568] [2021-10-28 09:41:45,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:45,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:45,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:45,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714937568] [2021-10-28 09:41:45,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714937568] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:45,353 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:45,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:41:45,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308922175] [2021-10-28 09:41:45,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:41:45,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:45,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:41:45,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:45,356 INFO L87 Difference]: Start difference. First operand 583 states and 741 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:45,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:45,702 INFO L93 Difference]: Finished difference Result 1334 states and 1716 transitions. [2021-10-28 09:41:45,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:41:45,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-28 09:41:45,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:45,711 INFO L225 Difference]: With dead ends: 1334 [2021-10-28 09:41:45,711 INFO L226 Difference]: Without dead ends: 1118 [2021-10-28 09:41:45,713 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:41:45,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2021-10-28 09:41:45,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 583. [2021-10-28 09:41:45,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 572 states have (on average 1.2954545454545454) internal successors, (741), 582 states have internal predecessors, (741), 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) [2021-10-28 09:41:45,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 741 transitions. [2021-10-28 09:41:45,783 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 741 transitions. Word has length 36 [2021-10-28 09:41:45,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:45,783 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 741 transitions. [2021-10-28 09:41:45,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:45,783 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 741 transitions. [2021-10-28 09:41:45,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 09:41:45,784 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:45,785 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:45,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-28 09:41:45,785 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:45,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:45,786 INFO L85 PathProgramCache]: Analyzing trace with hash -593051815, now seen corresponding path program 1 times [2021-10-28 09:41:45,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:45,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506384144] [2021-10-28 09:41:45,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:45,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:45,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:45,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:45,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506384144] [2021-10-28 09:41:45,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506384144] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:45,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:45,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:45,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984447768] [2021-10-28 09:41:45,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:45,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:45,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:45,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:45,839 INFO L87 Difference]: Start difference. First operand 583 states and 741 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:45,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:45,938 INFO L93 Difference]: Finished difference Result 843 states and 1076 transitions. [2021-10-28 09:41:45,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:45,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-28 09:41:45,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:45,943 INFO L225 Difference]: With dead ends: 843 [2021-10-28 09:41:45,944 INFO L226 Difference]: Without dead ends: 644 [2021-10-28 09:41:45,947 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:45,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2021-10-28 09:41:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 571. [2021-10-28 09:41:46,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 563 states have (on average 1.2841918294849024) internal successors, (723), 570 states have internal predecessors, (723), 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) [2021-10-28 09:41:46,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 723 transitions. [2021-10-28 09:41:46,012 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 723 transitions. Word has length 36 [2021-10-28 09:41:46,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:46,012 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 723 transitions. [2021-10-28 09:41:46,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:46,012 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 723 transitions. [2021-10-28 09:41:46,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-28 09:41:46,014 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:46,014 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:46,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-28 09:41:46,014 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:46,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:46,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1515937655, now seen corresponding path program 1 times [2021-10-28 09:41:46,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:46,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569110994] [2021-10-28 09:41:46,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:46,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:46,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:46,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:46,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569110994] [2021-10-28 09:41:46,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569110994] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:46,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:46,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:41:46,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386829837] [2021-10-28 09:41:46,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:41:46,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:46,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:41:46,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:46,083 INFO L87 Difference]: Start difference. First operand 571 states and 723 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 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) [2021-10-28 09:41:46,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:46,223 INFO L93 Difference]: Finished difference Result 600 states and 751 transitions. [2021-10-28 09:41:46,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:41:46,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 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 [2021-10-28 09:41:46,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:46,228 INFO L225 Difference]: With dead ends: 600 [2021-10-28 09:41:46,228 INFO L226 Difference]: Without dead ends: 581 [2021-10-28 09:41:46,228 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:46,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2021-10-28 09:41:46,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 568. [2021-10-28 09:41:46,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 560 states have (on average 1.2803571428571427) internal successors, (717), 567 states have internal predecessors, (717), 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) [2021-10-28 09:41:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 717 transitions. [2021-10-28 09:41:46,292 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 717 transitions. Word has length 37 [2021-10-28 09:41:46,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:46,293 INFO L470 AbstractCegarLoop]: Abstraction has 568 states and 717 transitions. [2021-10-28 09:41:46,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 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) [2021-10-28 09:41:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 717 transitions. [2021-10-28 09:41:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-28 09:41:46,294 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:46,295 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:46,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-28 09:41:46,295 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:46,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:46,296 INFO L85 PathProgramCache]: Analyzing trace with hash 48742328, now seen corresponding path program 1 times [2021-10-28 09:41:46,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:46,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598256993] [2021-10-28 09:41:46,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:46,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:46,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:46,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:46,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598256993] [2021-10-28 09:41:46,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598256993] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:46,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:46,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:46,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538042818] [2021-10-28 09:41:46,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:46,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:46,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:46,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:46,445 INFO L87 Difference]: Start difference. First operand 568 states and 717 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 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) [2021-10-28 09:41:46,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:46,603 INFO L93 Difference]: Finished difference Result 757 states and 959 transitions. [2021-10-28 09:41:46,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:46,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 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 [2021-10-28 09:41:46,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:46,607 INFO L225 Difference]: With dead ends: 757 [2021-10-28 09:41:46,607 INFO L226 Difference]: Without dead ends: 538 [2021-10-28 09:41:46,608 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:46,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-28 09:41:46,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 533. [2021-10-28 09:41:46,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 526 states have (on average 1.2661596958174905) internal successors, (666), 532 states have internal predecessors, (666), 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) [2021-10-28 09:41:46,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 666 transitions. [2021-10-28 09:41:46,694 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 666 transitions. Word has length 37 [2021-10-28 09:41:46,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:46,695 INFO L470 AbstractCegarLoop]: Abstraction has 533 states and 666 transitions. [2021-10-28 09:41:46,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 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) [2021-10-28 09:41:46,695 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 666 transitions. [2021-10-28 09:41:46,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 09:41:46,696 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:46,696 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:46,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-28 09:41:46,697 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:46,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:46,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1967560492, now seen corresponding path program 1 times [2021-10-28 09:41:46,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:46,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379764720] [2021-10-28 09:41:46,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:46,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:46,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:46,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379764720] [2021-10-28 09:41:46,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379764720] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:46,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:46,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:46,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933699010] [2021-10-28 09:41:46,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:46,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:46,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:46,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:46,750 INFO L87 Difference]: Start difference. First operand 533 states and 666 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-10-28 09:41:46,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:46,980 INFO L93 Difference]: Finished difference Result 714 states and 899 transitions. [2021-10-28 09:41:46,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:46,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2021-10-28 09:41:46,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:46,983 INFO L225 Difference]: With dead ends: 714 [2021-10-28 09:41:46,984 INFO L226 Difference]: Without dead ends: 530 [2021-10-28 09:41:46,984 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:46,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2021-10-28 09:41:47,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2021-10-28 09:41:47,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 523 states have (on average 1.2562141491395793) internal successors, (657), 529 states have internal predecessors, (657), 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) [2021-10-28 09:41:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 657 transitions. [2021-10-28 09:41:47,061 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 657 transitions. Word has length 38 [2021-10-28 09:41:47,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:47,061 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 657 transitions. [2021-10-28 09:41:47,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2021-10-28 09:41:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 657 transitions. [2021-10-28 09:41:47,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-28 09:41:47,065 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:47,065 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:47,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-28 09:41:47,067 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:47,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:47,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2061375645, now seen corresponding path program 1 times [2021-10-28 09:41:47,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:47,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139365094] [2021-10-28 09:41:47,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:47,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:47,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:47,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:47,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139365094] [2021-10-28 09:41:47,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139365094] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:47,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:47,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:41:47,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647481886] [2021-10-28 09:41:47,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:41:47,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:47,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:41:47,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:47,195 INFO L87 Difference]: Start difference. First operand 530 states and 657 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:47,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:47,624 INFO L93 Difference]: Finished difference Result 775 states and 946 transitions. [2021-10-28 09:41:47,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:41:47,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-28 09:41:47,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:47,640 INFO L225 Difference]: With dead ends: 775 [2021-10-28 09:41:47,646 INFO L226 Difference]: Without dead ends: 758 [2021-10-28 09:41:47,647 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:41:47,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-10-28 09:41:47,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 529. [2021-10-28 09:41:47,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 522 states have (on average 1.2547892720306513) internal successors, (655), 528 states have internal predecessors, (655), 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) [2021-10-28 09:41:47,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 655 transitions. [2021-10-28 09:41:47,727 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 655 transitions. Word has length 39 [2021-10-28 09:41:47,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:47,727 INFO L470 AbstractCegarLoop]: Abstraction has 529 states and 655 transitions. [2021-10-28 09:41:47,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:47,727 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 655 transitions. [2021-10-28 09:41:47,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 09:41:47,732 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:47,733 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:47,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-28 09:41:47,733 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:47,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:47,734 INFO L85 PathProgramCache]: Analyzing trace with hash -917711350, now seen corresponding path program 1 times [2021-10-28 09:41:47,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:47,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277010092] [2021-10-28 09:41:47,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:47,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:47,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:47,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:47,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277010092] [2021-10-28 09:41:47,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277010092] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:47,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:47,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:41:47,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162969951] [2021-10-28 09:41:47,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:41:47,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:47,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:41:47,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:41:47,816 INFO L87 Difference]: Start difference. First operand 529 states and 655 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:48,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:48,182 INFO L93 Difference]: Finished difference Result 554 states and 676 transitions. [2021-10-28 09:41:48,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:41:48,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-28 09:41:48,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:48,186 INFO L225 Difference]: With dead ends: 554 [2021-10-28 09:41:48,186 INFO L226 Difference]: Without dead ends: 530 [2021-10-28 09:41:48,187 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:41:48,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2021-10-28 09:41:48,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 516. [2021-10-28 09:41:48,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 509 states have (on average 1.2573673870333988) internal successors, (640), 515 states have internal predecessors, (640), 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) [2021-10-28 09:41:48,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 640 transitions. [2021-10-28 09:41:48,278 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 640 transitions. Word has length 40 [2021-10-28 09:41:48,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:48,278 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 640 transitions. [2021-10-28 09:41:48,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:48,278 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 640 transitions. [2021-10-28 09:41:48,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 09:41:48,280 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:48,280 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:48,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-28 09:41:48,281 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:48,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:48,281 INFO L85 PathProgramCache]: Analyzing trace with hash -436735014, now seen corresponding path program 1 times [2021-10-28 09:41:48,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:48,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606442391] [2021-10-28 09:41:48,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:48,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:48,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:48,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606442391] [2021-10-28 09:41:48,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606442391] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:48,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:48,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:41:48,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499682286] [2021-10-28 09:41:48,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:41:48,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:48,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:41:48,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:48,346 INFO L87 Difference]: Start difference. First operand 516 states and 640 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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) [2021-10-28 09:41:48,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:48,463 INFO L93 Difference]: Finished difference Result 539 states and 660 transitions. [2021-10-28 09:41:48,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:41:48,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-10-28 09:41:48,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:48,472 INFO L225 Difference]: With dead ends: 539 [2021-10-28 09:41:48,472 INFO L226 Difference]: Without dead ends: 518 [2021-10-28 09:41:48,473 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:48,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2021-10-28 09:41:48,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 508. [2021-10-28 09:41:48,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 501 states have (on average 1.2574850299401197) internal successors, (630), 507 states have internal predecessors, (630), 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) [2021-10-28 09:41:48,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 630 transitions. [2021-10-28 09:41:48,546 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 630 transitions. Word has length 41 [2021-10-28 09:41:48,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:48,547 INFO L470 AbstractCegarLoop]: Abstraction has 508 states and 630 transitions. [2021-10-28 09:41:48,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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) [2021-10-28 09:41:48,547 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 630 transitions. [2021-10-28 09:41:48,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 09:41:48,548 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:48,549 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:48,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-28 09:41:48,549 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:48,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:48,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1643790660, now seen corresponding path program 1 times [2021-10-28 09:41:48,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:48,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452488536] [2021-10-28 09:41:48,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:48,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:48,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:48,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:48,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452488536] [2021-10-28 09:41:48,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452488536] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:48,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:48,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:48,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359184244] [2021-10-28 09:41:48,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:48,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:48,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:48,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:48,600 INFO L87 Difference]: Start difference. First operand 508 states and 630 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 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) [2021-10-28 09:41:48,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:48,698 INFO L93 Difference]: Finished difference Result 526 states and 647 transitions. [2021-10-28 09:41:48,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:41:48,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-10-28 09:41:48,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:48,700 INFO L225 Difference]: With dead ends: 526 [2021-10-28 09:41:48,700 INFO L226 Difference]: Without dead ends: 508 [2021-10-28 09:41:48,701 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:48,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2021-10-28 09:41:48,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 494. [2021-10-28 09:41:48,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 487 states have (on average 1.2607802874743326) internal successors, (614), 493 states have internal predecessors, (614), 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) [2021-10-28 09:41:48,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 614 transitions. [2021-10-28 09:41:48,787 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 614 transitions. Word has length 41 [2021-10-28 09:41:48,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:48,788 INFO L470 AbstractCegarLoop]: Abstraction has 494 states and 614 transitions. [2021-10-28 09:41:48,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 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) [2021-10-28 09:41:48,788 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 614 transitions. [2021-10-28 09:41:48,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 09:41:48,790 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:48,790 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:48,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-28 09:41:48,790 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:48,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:48,791 INFO L85 PathProgramCache]: Analyzing trace with hash 160458813, now seen corresponding path program 1 times [2021-10-28 09:41:48,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:48,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566609432] [2021-10-28 09:41:48,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:48,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:48,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:48,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566609432] [2021-10-28 09:41:48,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566609432] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:48,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:48,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:41:48,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924118144] [2021-10-28 09:41:48,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:41:48,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:48,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:41:48,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:48,878 INFO L87 Difference]: Start difference. First operand 494 states and 614 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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) [2021-10-28 09:41:49,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:49,129 INFO L93 Difference]: Finished difference Result 815 states and 998 transitions. [2021-10-28 09:41:49,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:41:49,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-10-28 09:41:49,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:49,132 INFO L225 Difference]: With dead ends: 815 [2021-10-28 09:41:49,132 INFO L226 Difference]: Without dead ends: 659 [2021-10-28 09:41:49,133 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:49,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2021-10-28 09:41:49,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 488. [2021-10-28 09:41:49,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 481 states have (on average 1.2515592515592515) internal successors, (602), 487 states have internal predecessors, (602), 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) [2021-10-28 09:41:49,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 602 transitions. [2021-10-28 09:41:49,212 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 602 transitions. Word has length 41 [2021-10-28 09:41:49,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:49,212 INFO L470 AbstractCegarLoop]: Abstraction has 488 states and 602 transitions. [2021-10-28 09:41:49,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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) [2021-10-28 09:41:49,213 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 602 transitions. [2021-10-28 09:41:49,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-28 09:41:49,214 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:49,214 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:49,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-28 09:41:49,214 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:49,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:49,215 INFO L85 PathProgramCache]: Analyzing trace with hash -693628121, now seen corresponding path program 1 times [2021-10-28 09:41:49,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:49,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455172680] [2021-10-28 09:41:49,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:49,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:49,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:49,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:49,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455172680] [2021-10-28 09:41:49,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455172680] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:49,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:49,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:49,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490856441] [2021-10-28 09:41:49,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:49,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:49,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:49,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:49,262 INFO L87 Difference]: Start difference. First operand 488 states and 602 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 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) [2021-10-28 09:41:49,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:49,382 INFO L93 Difference]: Finished difference Result 644 states and 779 transitions. [2021-10-28 09:41:49,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:49,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-10-28 09:41:49,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:49,384 INFO L225 Difference]: With dead ends: 644 [2021-10-28 09:41:49,384 INFO L226 Difference]: Without dead ends: 579 [2021-10-28 09:41:49,385 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:49,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2021-10-28 09:41:49,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 492. [2021-10-28 09:41:49,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 485 states have (on average 1.2494845360824742) internal successors, (606), 491 states have internal predecessors, (606), 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) [2021-10-28 09:41:49,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 606 transitions. [2021-10-28 09:41:49,488 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 606 transitions. Word has length 42 [2021-10-28 09:41:49,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:49,489 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 606 transitions. [2021-10-28 09:41:49,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 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) [2021-10-28 09:41:49,489 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 606 transitions. [2021-10-28 09:41:49,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-28 09:41:49,493 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:49,493 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:49,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-28 09:41:49,494 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:49,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:49,494 INFO L85 PathProgramCache]: Analyzing trace with hash -81749273, now seen corresponding path program 1 times [2021-10-28 09:41:49,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:49,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360035768] [2021-10-28 09:41:49,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:49,495 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:49,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:49,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:49,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360035768] [2021-10-28 09:41:49,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360035768] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:49,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:49,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:41:49,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411226571] [2021-10-28 09:41:49,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:41:49,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:49,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:41:49,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:41:49,571 INFO L87 Difference]: Start difference. First operand 492 states and 606 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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) [2021-10-28 09:41:49,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:49,708 INFO L93 Difference]: Finished difference Result 516 states and 628 transitions. [2021-10-28 09:41:49,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:41:49,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-10-28 09:41:49,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:49,710 INFO L225 Difference]: With dead ends: 516 [2021-10-28 09:41:49,710 INFO L226 Difference]: Without dead ends: 444 [2021-10-28 09:41:49,712 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:41:49,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2021-10-28 09:41:49,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 430. [2021-10-28 09:41:49,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 424 states have (on average 1.2382075471698113) internal successors, (525), 429 states have internal predecessors, (525), 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) [2021-10-28 09:41:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 525 transitions. [2021-10-28 09:41:49,786 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 525 transitions. Word has length 42 [2021-10-28 09:41:49,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:49,788 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 525 transitions. [2021-10-28 09:41:49,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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) [2021-10-28 09:41:49,789 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 525 transitions. [2021-10-28 09:41:49,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 09:41:49,790 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:49,790 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:49,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-28 09:41:49,791 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:49,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:49,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1579373080, now seen corresponding path program 1 times [2021-10-28 09:41:49,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:49,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874699957] [2021-10-28 09:41:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:49,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:49,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:49,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:49,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874699957] [2021-10-28 09:41:49,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874699957] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:49,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:49,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:41:49,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539245447] [2021-10-28 09:41:49,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:41:49,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:49,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:41:49,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:49,878 INFO L87 Difference]: Start difference. First operand 430 states and 525 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:50,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:50,143 INFO L93 Difference]: Finished difference Result 448 states and 543 transitions. [2021-10-28 09:41:50,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:41:50,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-28 09:41:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:50,145 INFO L225 Difference]: With dead ends: 448 [2021-10-28 09:41:50,145 INFO L226 Difference]: Without dead ends: 335 [2021-10-28 09:41:50,145 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:41:50,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-10-28 09:41:50,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 315. [2021-10-28 09:41:50,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 310 states have (on average 1.2483870967741935) internal successors, (387), 314 states have internal predecessors, (387), 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) [2021-10-28 09:41:50,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 387 transitions. [2021-10-28 09:41:50,201 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 387 transitions. Word has length 44 [2021-10-28 09:41:50,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:50,201 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 387 transitions. [2021-10-28 09:41:50,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:50,202 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 387 transitions. [2021-10-28 09:41:50,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 09:41:50,203 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:50,203 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:50,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-28 09:41:50,203 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:50,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:50,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1536215993, now seen corresponding path program 1 times [2021-10-28 09:41:50,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:50,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936597018] [2021-10-28 09:41:50,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:50,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:50,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:50,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936597018] [2021-10-28 09:41:50,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936597018] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:50,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:50,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:41:50,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648022703] [2021-10-28 09:41:50,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:41:50,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:50,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:41:50,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:50,273 INFO L87 Difference]: Start difference. First operand 315 states and 387 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:50,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:50,498 INFO L93 Difference]: Finished difference Result 708 states and 883 transitions. [2021-10-28 09:41:50,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:41:50,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-28 09:41:50,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:50,500 INFO L225 Difference]: With dead ends: 708 [2021-10-28 09:41:50,501 INFO L226 Difference]: Without dead ends: 578 [2021-10-28 09:41:50,501 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:41:50,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2021-10-28 09:41:50,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 315. [2021-10-28 09:41:50,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 310 states have (on average 1.2451612903225806) internal successors, (386), 314 states have internal predecessors, (386), 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) [2021-10-28 09:41:50,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 386 transitions. [2021-10-28 09:41:50,562 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 386 transitions. Word has length 44 [2021-10-28 09:41:50,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:50,563 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 386 transitions. [2021-10-28 09:41:50,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:50,563 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 386 transitions. [2021-10-28 09:41:50,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-28 09:41:50,564 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:50,565 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:50,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-28 09:41:50,565 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:50,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:50,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1259536918, now seen corresponding path program 1 times [2021-10-28 09:41:50,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:50,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114541207] [2021-10-28 09:41:50,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:50,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:50,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:50,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114541207] [2021-10-28 09:41:50,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114541207] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:50,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:50,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:50,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915207434] [2021-10-28 09:41:50,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:50,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:50,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:50,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:50,611 INFO L87 Difference]: Start difference. First operand 315 states and 386 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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) [2021-10-28 09:41:50,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:50,716 INFO L93 Difference]: Finished difference Result 448 states and 556 transitions. [2021-10-28 09:41:50,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:50,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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 48 [2021-10-28 09:41:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:50,718 INFO L225 Difference]: With dead ends: 448 [2021-10-28 09:41:50,718 INFO L226 Difference]: Without dead ends: 277 [2021-10-28 09:41:50,718 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:50,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-10-28 09:41:50,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-10-28 09:41:50,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 274 states have (on average 1.22992700729927) internal successors, (337), 276 states have internal predecessors, (337), 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) [2021-10-28 09:41:50,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 337 transitions. [2021-10-28 09:41:50,776 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 337 transitions. Word has length 48 [2021-10-28 09:41:50,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:50,776 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 337 transitions. [2021-10-28 09:41:50,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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) [2021-10-28 09:41:50,777 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 337 transitions. [2021-10-28 09:41:50,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 09:41:50,778 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:50,778 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:50,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-10-28 09:41:50,778 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:50,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:50,779 INFO L85 PathProgramCache]: Analyzing trace with hash -624384568, now seen corresponding path program 1 times [2021-10-28 09:41:50,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:50,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454838160] [2021-10-28 09:41:50,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:50,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:50,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:50,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:50,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454838160] [2021-10-28 09:41:50,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454838160] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:50,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:50,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:41:50,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935175898] [2021-10-28 09:41:50,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:41:50,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:50,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:41:50,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:50,854 INFO L87 Difference]: Start difference. First operand 277 states and 337 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-10-28 09:41:51,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:51,081 INFO L93 Difference]: Finished difference Result 382 states and 459 transitions. [2021-10-28 09:41:51,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:41:51,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-10-28 09:41:51,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:51,083 INFO L225 Difference]: With dead ends: 382 [2021-10-28 09:41:51,083 INFO L226 Difference]: Without dead ends: 364 [2021-10-28 09:41:51,084 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:41:51,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-10-28 09:41:51,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 277. [2021-10-28 09:41:51,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 274 states have (on average 1.2262773722627738) internal successors, (336), 276 states have internal predecessors, (336), 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) [2021-10-28 09:41:51,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 336 transitions. [2021-10-28 09:41:51,136 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 336 transitions. Word has length 54 [2021-10-28 09:41:51,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:51,137 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 336 transitions. [2021-10-28 09:41:51,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-10-28 09:41:51,137 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 336 transitions. [2021-10-28 09:41:51,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-28 09:41:51,138 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:51,138 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:51,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-10-28 09:41:51,139 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:51,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:51,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2021036311, now seen corresponding path program 1 times [2021-10-28 09:41:51,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:51,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310853535] [2021-10-28 09:41:51,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:51,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:51,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:51,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:51,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310853535] [2021-10-28 09:41:51,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310853535] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:51,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:51,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:51,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629309444] [2021-10-28 09:41:51,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:51,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:51,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:51,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:51,194 INFO L87 Difference]: Start difference. First operand 277 states and 336 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:51,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:51,295 INFO L93 Difference]: Finished difference Result 390 states and 468 transitions. [2021-10-28 09:41:51,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:51,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-10-28 09:41:51,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:51,297 INFO L225 Difference]: With dead ends: 390 [2021-10-28 09:41:51,297 INFO L226 Difference]: Without dead ends: 331 [2021-10-28 09:41:51,298 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:51,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2021-10-28 09:41:51,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 277. [2021-10-28 09:41:51,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 274 states have (on average 1.218978102189781) internal successors, (334), 276 states have internal predecessors, (334), 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) [2021-10-28 09:41:51,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 334 transitions. [2021-10-28 09:41:51,364 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 334 transitions. Word has length 57 [2021-10-28 09:41:51,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:51,365 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 334 transitions. [2021-10-28 09:41:51,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:51,365 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 334 transitions. [2021-10-28 09:41:51,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 09:41:51,366 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:51,367 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:51,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-10-28 09:41:51,367 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-10-28 09:41:51,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:51,368 INFO L85 PathProgramCache]: Analyzing trace with hash -576201386, now seen corresponding path program 1 times [2021-10-28 09:41:51,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:51,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764298304] [2021-10-28 09:41:51,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:51,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:51,408 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:41:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:51,509 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:41:51,509 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:41:51,510 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:51,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-10-28 09:41:51,527 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:51,531 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:41:51,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:41:51 BoogieIcfgContainer [2021-10-28 09:41:51,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:41:51,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:41:51,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:41:51,674 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:41:51,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:41:35" (3/4) ... [2021-10-28 09:41:51,677 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 09:41:51,831 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:41:51,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:41:51,833 INFO L168 Benchmark]: Toolchain (without parser) took 19077.30 ms. Allocated memory was 81.8 MB in the beginning and 415.2 MB in the end (delta: 333.4 MB). Free memory was 41.4 MB in the beginning and 273.3 MB in the end (delta: -232.0 MB). Peak memory consumption was 104.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:51,833 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 59.4 MB in the beginning and 59.3 MB in the end (delta: 40.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:41:51,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.18 ms. Allocated memory was 81.8 MB in the beginning and 117.4 MB in the end (delta: 35.7 MB). Free memory was 41.2 MB in the beginning and 74.5 MB in the end (delta: -33.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:51,834 INFO L168 Benchmark]: Boogie Procedure Inliner took 175.72 ms. Allocated memory is still 117.4 MB. Free memory was 74.5 MB in the beginning and 64.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:51,836 INFO L168 Benchmark]: Boogie Preprocessor took 150.82 ms. Allocated memory is still 117.4 MB. Free memory was 64.0 MB in the beginning and 57.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:51,836 INFO L168 Benchmark]: RCFGBuilder took 2093.51 ms. Allocated memory is still 117.4 MB. Free memory was 57.0 MB in the beginning and 53.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:51,837 INFO L168 Benchmark]: TraceAbstraction took 15836.08 ms. Allocated memory was 117.4 MB in the beginning and 415.2 MB in the end (delta: 297.8 MB). Free memory was 52.7 MB in the beginning and 291.2 MB in the end (delta: -238.5 MB). Peak memory consumption was 57.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:51,837 INFO L168 Benchmark]: Witness Printer took 157.43 ms. Allocated memory is still 415.2 MB. Free memory was 291.2 MB in the beginning and 273.3 MB in the end (delta: 17.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:51,840 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 59.4 MB in the beginning and 59.3 MB in the end (delta: 40.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 643.18 ms. Allocated memory was 81.8 MB in the beginning and 117.4 MB in the end (delta: 35.7 MB). Free memory was 41.2 MB in the beginning and 74.5 MB in the end (delta: -33.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 175.72 ms. Allocated memory is still 117.4 MB. Free memory was 74.5 MB in the beginning and 64.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 150.82 ms. Allocated memory is still 117.4 MB. Free memory was 64.0 MB in the beginning and 57.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2093.51 ms. Allocated memory is still 117.4 MB. Free memory was 57.0 MB in the beginning and 53.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15836.08 ms. Allocated memory was 117.4 MB in the beginning and 415.2 MB in the end (delta: 297.8 MB). Free memory was 52.7 MB in the beginning and 291.2 MB in the end (delta: -238.5 MB). Peak memory consumption was 57.8 MB. Max. memory is 16.1 GB. * Witness Printer took 157.43 ms. Allocated memory is still 415.2 MB. Free memory was 291.2 MB in the beginning and 273.3 MB in the end (delta: 17.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1627]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int FloppyThread ; [L43] int KernelMode ; [L44] int Suspended ; [L45] int Executive ; [L46] int DiskController ; [L47] int FloppyDiskPeripheral ; [L48] int FlConfigCallBack ; [L49] int MaximumInterfaceType ; [L50] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L51] int myStatus ; [L52] int s ; [L53] int UNLOADED ; [L54] int NP ; [L55] int DC ; [L56] int SKIP1 ; [L57] int SKIP2 ; [L58] int MPR1 ; [L59] int MPR3 ; [L60] int IPC ; [L61] int pended ; [L62] int compRegistered ; [L63] int lowerDriverReturn ; [L64] int setEventCalled ; [L65] int customIrp ; [L88] int PagingReferenceCount = 0; [L89] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L668] int status ; [L669] int irp = __VERIFIER_nondet_int() ; [L670] int pirp ; [L671] int pirp__IoStatus__Status ; [L672] int irp_choice = __VERIFIER_nondet_int() ; [L673] int devobj = __VERIFIER_nondet_int() ; [L674] int __cil_tmp8 ; [L676] FloppyThread = 0 [L677] KernelMode = 0 [L678] Suspended = 0 [L679] Executive = 0 [L680] DiskController = 0 [L681] FloppyDiskPeripheral = 0 [L682] FlConfigCallBack = 0 [L683] MaximumInterfaceType = 0 [L684] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L685] myStatus = 0 [L686] s = 0 [L687] UNLOADED = 0 [L688] NP = 0 [L689] DC = 0 [L690] SKIP1 = 0 [L691] SKIP2 = 0 [L692] MPR1 = 0 [L693] MPR3 = 0 [L694] IPC = 0 [L695] pended = 0 [L696] compRegistered = 0 [L697] lowerDriverReturn = 0 [L698] setEventCalled = 0 [L699] customIrp = 0 [L703] status = 0 [L704] pirp = irp [L71] UNLOADED = 0 [L72] NP = 1 [L73] DC = 2 [L74] SKIP1 = 3 [L75] SKIP2 = 4 [L76] MPR1 = 5 [L77] MPR3 = 6 [L78] IPC = 7 [L79] s = UNLOADED [L80] pended = 0 [L81] compRegistered = 0 [L82] lowerDriverReturn = 0 [L83] setEventCalled = 0 [L84] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L707] COND TRUE status >= 0 [L708] s = NP [L709] customIrp = 0 [L710] setEventCalled = customIrp [L711] lowerDriverReturn = setEventCalled [L712] compRegistered = lowerDriverReturn [L713] pended = compRegistered [L714] pirp__IoStatus__Status = 0 [L715] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L716] COND TRUE irp_choice == 0 [L717] pirp__IoStatus__Status = -1073741637 [L718] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L658] s = NP [L659] pended = 0 [L660] compRegistered = 0 [L661] lowerDriverReturn = 0 [L662] setEventCalled = 0 [L663] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L724] COND FALSE !(status < 0) [L728] int tmp_ndt_1; [L729] tmp_ndt_1 = __VERIFIER_nondet_int() [L730] COND FALSE !(tmp_ndt_1 == 0) [L733] int tmp_ndt_2; [L734] tmp_ndt_2 = __VERIFIER_nondet_int() [L735] COND FALSE !(tmp_ndt_2 == 1) [L738] int tmp_ndt_3; [L739] tmp_ndt_3 = __VERIFIER_nondet_int() [L740] COND FALSE !(tmp_ndt_3 == 2) [L743] int tmp_ndt_4; [L744] tmp_ndt_4 = __VERIFIER_nondet_int() [L745] COND TRUE tmp_ndt_4 == 3 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L161] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L162] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L163] int Irp__IoStatus__Information ; [L164] int Irp__IoStatus__Status ; [L165] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L166] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L167] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L168] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L169] int disketteExtension__HoldNewRequests ; [L170] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L171] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L172] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L173] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L174] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L175] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L176] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L177] int irpSp ; [L178] int disketteExtension ; [L179] int ntStatus ; [L180] int doneEvent = __VERIFIER_nondet_int() ; [L181] int irpSp___0 ; [L182] int nextIrpSp ; [L183] int nextIrpSp__Control ; [L184] int irpSp___1 ; [L185] int irpSp__Context ; [L186] int irpSp__Control ; [L187] long __cil_tmp29 ; [L188] long __cil_tmp30 ; [L191] ntStatus = 0 [L192] PagingReferenceCount ++ VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L193] COND TRUE PagingReferenceCount == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] disketteExtension = DeviceObject__DeviceExtension [L197] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L198] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L207] COND FALSE !(irpSp__MinorFunction == 0) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND TRUE irpSp__MinorFunction == 5 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L236] COND TRUE irpSp__MinorFunction == 5 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND FALSE !(! disketteExtension__IsStarted) [L255] disketteExtension__HoldNewRequests = 1 [L98] int status ; [L99] int threadHandle = __VERIFIER_nondet_int() ; [L100] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L101] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L102] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L103] int Irp__IoStatus__Status ; [L104] int Irp__IoStatus__Information ; [L105] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L106] int ObjAttributes = __VERIFIER_nondet_int() ; [L107] int __cil_tmp12 ; [L108] int __cil_tmp13 ; VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L111] COND FALSE !(DisketteExtension__PoweringDown == 1) [L117] DisketteExtension__ThreadReferenceCount ++ VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L118] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L150] COND TRUE pended == 0 [L151] pended = 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L157] return (259); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L259] __cil_tmp29 = (long )ntStatus VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L260] COND TRUE __cil_tmp29 == 259L [L1066] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1075] COND FALSE !(customIrp == 1) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1079] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1086] int tmp_ndt_12; [L1087] tmp_ndt_12 = __VERIFIER_nondet_int() [L1088] COND TRUE tmp_ndt_12 == 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1094] return (0); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265] COND TRUE disketteExtension__FloppyThread != 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] disketteExtension__FloppyThread = 0 [L269] Irp__IoStatus__Status = 0 [L270] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] COND TRUE s == NP [L272] s = SKIP1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L279] Irp__CurrentLocation ++ [L280] Irp__Tail__Overlay__CurrentStackLocation ++ [L968] int returnVal2 ; [L969] int compRetStatus1 ; [L970] int lcontext = __VERIFIER_nondet_int() ; [L971] unsigned long __cil_tmp7 ; VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L974] COND FALSE !(\read(compRegistered)) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L987] int tmp_ndt_10; [L988] tmp_ndt_10 = __VERIFIER_nondet_int() [L989] COND TRUE tmp_ndt_10 == 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1000] returnVal2 = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1013] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1017] COND FALSE !(s == MPR1) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1026] COND TRUE s == SKIP1 [L1027] s = SKIP2 [L1028] lowerDriverReturn = returnVal2 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1036] return (returnVal2); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L281] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L427] PagingReferenceCount -- VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L428] COND TRUE PagingReferenceCount == 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] return (ntStatus); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L767] status = FloppyPnp(devobj, pirp) [L780] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L781] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L788] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L789] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L796] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L797] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L798] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L812] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L813] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1627] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 572 locations, 54 error locations. Started 1 CEGAR loops. OverallTime: 15.6s, OverallIterations: 49, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 26574 SDtfs, 17457 SDslu, 42437 SDs, 0 SdLazy, 4280 SolverSat, 632 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 282 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=715occurred in iteration=4, InterpolantAutomatonStates: 227, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 48 MinimizatonAttempts, 3445 StatesRemovedByMinimization, 38 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1613 NumberOfCodeBlocks, 1613 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 1507 ConstructedInterpolants, 0 QuantifiedInterpolants, 3463 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 48 InterpolantComputations, 48 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:41:51,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7421142-1403-45e4-a6a3-56a21199db1e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...