./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label53.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label53.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0 --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 536fb035d928713a90d5c84a48f9ef94bf2f10bc408883dd0d7e11d670c7e07b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:20:46,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:20:46,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:20:46,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:20:46,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:20:46,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:20:46,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:20:46,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:20:46,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:20:46,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:20:46,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:20:46,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:20:46,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:20:46,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:20:46,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:20:46,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:20:46,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:20:46,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:20:46,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:20:46,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:20:46,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:20:46,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:20:46,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:20:46,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:20:46,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:20:46,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:20:46,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:20:46,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:20:46,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:20:46,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:20:46,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:20:46,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:20:46,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:20:46,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:20:46,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:20:46,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:20:46,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:20:46,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:20:46,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:20:46,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:20:46,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:20:46,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 16:20:46,775 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:20:46,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:20:46,776 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:20:46,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:20:46,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:20:46,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:20:46,778 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:20:46,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:20:46,779 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:20:46,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:20:46,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:20:46,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:20:46,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:20:46,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:20:46,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:20:46,782 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:20:46,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:20:46,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:20:46,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:20:46,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:20:46,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:20:46,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:20:46,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:20:46,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:20:46,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:20:46,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:20:46,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:20:46,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:20:46,796 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:20:46,796 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:20:46,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:20:46,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:20:46,798 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_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 536fb035d928713a90d5c84a48f9ef94bf2f10bc408883dd0d7e11d670c7e07b [2021-11-22 16:20:47,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:20:47,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:20:47,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:20:47,082 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:20:47,082 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:20:47,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/eca-rers2012/Problem11_label53.c [2021-11-22 16:20:47,164 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/data/1c0ca3cf6/438fb60e73ee4ac0862020d25d320c62/FLAG5ae36498e [2021-11-22 16:20:47,757 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:20:47,757 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/sv-benchmarks/c/eca-rers2012/Problem11_label53.c [2021-11-22 16:20:47,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/data/1c0ca3cf6/438fb60e73ee4ac0862020d25d320c62/FLAG5ae36498e [2021-11-22 16:20:47,992 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/data/1c0ca3cf6/438fb60e73ee4ac0862020d25d320c62 [2021-11-22 16:20:47,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:20:47,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:20:47,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:20:47,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:20:48,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:20:48,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:20:47" (1/1) ... [2021-11-22 16:20:48,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73bf63c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48, skipping insertion in model container [2021-11-22 16:20:48,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:20:47" (1/1) ... [2021-11-22 16:20:48,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:20:48,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:20:48,410 WARN L230 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_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/sv-benchmarks/c/eca-rers2012/Problem11_label53.c[6841,6854] [2021-11-22 16:20:48,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:20:48,664 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:20:48,690 WARN L230 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_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/sv-benchmarks/c/eca-rers2012/Problem11_label53.c[6841,6854] [2021-11-22 16:20:48,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:20:48,866 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:20:48,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48 WrapperNode [2021-11-22 16:20:48,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:20:48,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:20:48,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:20:48,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:20:48,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48" (1/1) ... [2021-11-22 16:20:48,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48" (1/1) ... [2021-11-22 16:20:49,055 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-11-22 16:20:49,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:20:49,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:20:49,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:20:49,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:20:49,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48" (1/1) ... [2021-11-22 16:20:49,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48" (1/1) ... [2021-11-22 16:20:49,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48" (1/1) ... [2021-11-22 16:20:49,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48" (1/1) ... [2021-11-22 16:20:49,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48" (1/1) ... [2021-11-22 16:20:49,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48" (1/1) ... [2021-11-22 16:20:49,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48" (1/1) ... [2021-11-22 16:20:49,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:20:49,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:20:49,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:20:49,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:20:49,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48" (1/1) ... [2021-11-22 16:20:49,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:20:49,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:20:49,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:20:49,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:20:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:20:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:20:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:20:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:20:49,350 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:20:49,352 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:20:50,950 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:20:50,969 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:20:50,969 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 16:20:50,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:20:50 BoogieIcfgContainer [2021-11-22 16:20:50,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:20:50,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:20:50,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:20:50,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:20:50,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:20:47" (1/3) ... [2021-11-22 16:20:50,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9ed9f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:20:50, skipping insertion in model container [2021-11-22 16:20:50,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:20:48" (2/3) ... [2021-11-22 16:20:50,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9ed9f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:20:50, skipping insertion in model container [2021-11-22 16:20:50,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:20:50" (3/3) ... [2021-11-22 16:20:50,982 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label53.c [2021-11-22 16:20:50,988 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:20:50,988 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 16:20:51,042 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:20:51,049 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 16:20:51,049 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 16:20:51,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:51,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 16:20:51,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:20:51,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:20:51,083 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:20:51,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:20:51,088 INFO L85 PathProgramCache]: Analyzing trace with hash 433832817, now seen corresponding path program 1 times [2021-11-22 16:20:51,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:20:51,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348603291] [2021-11-22 16:20:51,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:20:51,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:20:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:20:51,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:20:51,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:20:51,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348603291] [2021-11-22 16:20:51,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348603291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:20:51,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:20:51,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:20:51,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123484668] [2021-11-22 16:20:51,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:20:51,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:20:51,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:20:51,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:20:51,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:20:51,412 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 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 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:52,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:20:52,699 INFO L93 Difference]: Finished difference Result 769 states and 1360 transitions. [2021-11-22 16:20:52,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:20:52,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-22 16:20:52,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:20:52,718 INFO L225 Difference]: With dead ends: 769 [2021-11-22 16:20:52,718 INFO L226 Difference]: Without dead ends: 422 [2021-11-22 16:20:52,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:20:52,742 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 193 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:20:52,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 163 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-22 16:20:52,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-11-22 16:20:52,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2021-11-22 16:20:52,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 1.5231143552311435) internal successors, (626), 411 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:52,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2021-11-22 16:20:52,883 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 47 [2021-11-22 16:20:52,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:20:52,889 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2021-11-22 16:20:52,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:52,889 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2021-11-22 16:20:52,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-22 16:20:52,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:20:52,895 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:20:52,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 16:20:52,896 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:20:52,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:20:52,897 INFO L85 PathProgramCache]: Analyzing trace with hash 822269331, now seen corresponding path program 1 times [2021-11-22 16:20:52,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:20:52,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107676355] [2021-11-22 16:20:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:20:52,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:20:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:20:53,111 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:20:53,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:20:53,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107676355] [2021-11-22 16:20:53,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107676355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:20:53,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:20:53,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:20:53,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274790540] [2021-11-22 16:20:53,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:20:53,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:20:53,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:20:53,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:20:53,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:20:53,120 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:53,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:20:53,933 INFO L93 Difference]: Finished difference Result 1194 states and 1821 transitions. [2021-11-22 16:20:53,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:20:53,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-22 16:20:53,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:20:53,942 INFO L225 Difference]: With dead ends: 1194 [2021-11-22 16:20:53,942 INFO L226 Difference]: Without dead ends: 784 [2021-11-22 16:20:53,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:20:53,946 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 175 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:20:53,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 154 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:20:53,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2021-11-22 16:20:53,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2021-11-22 16:20:53,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.3742017879948913) internal successors, (1076), 783 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:53,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1076 transitions. [2021-11-22 16:20:53,990 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1076 transitions. Word has length 113 [2021-11-22 16:20:53,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:20:53,990 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1076 transitions. [2021-11-22 16:20:53,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:53,991 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1076 transitions. [2021-11-22 16:20:53,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-22 16:20:53,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:20:53,994 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:20:53,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 16:20:53,995 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:20:53,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:20:53,996 INFO L85 PathProgramCache]: Analyzing trace with hash -995772387, now seen corresponding path program 1 times [2021-11-22 16:20:53,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:20:53,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445271036] [2021-11-22 16:20:53,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:20:53,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:20:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:20:54,119 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:20:54,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:20:54,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445271036] [2021-11-22 16:20:54,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445271036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:20:54,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:20:54,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:20:54,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165987031] [2021-11-22 16:20:54,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:20:54,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:20:54,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:20:54,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:20:54,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:20:54,128 INFO L87 Difference]: Start difference. First operand 784 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:54,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:20:54,884 INFO L93 Difference]: Finished difference Result 1936 states and 2599 transitions. [2021-11-22 16:20:54,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:20:54,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-11-22 16:20:54,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:20:54,891 INFO L225 Difference]: With dead ends: 1936 [2021-11-22 16:20:54,892 INFO L226 Difference]: Without dead ends: 1154 [2021-11-22 16:20:54,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:20:54,895 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-22 16:20:54,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 190 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-22 16:20:54,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2021-11-22 16:20:54,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1153. [2021-11-22 16:20:54,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.2699652777777777) internal successors, (1463), 1152 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:54,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1463 transitions. [2021-11-22 16:20:54,933 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1463 transitions. Word has length 117 [2021-11-22 16:20:54,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:20:54,934 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 1463 transitions. [2021-11-22 16:20:54,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:54,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1463 transitions. [2021-11-22 16:20:54,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-22 16:20:54,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:20:54,938 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:20:54,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 16:20:54,939 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:20:54,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:20:54,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1474139372, now seen corresponding path program 1 times [2021-11-22 16:20:54,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:20:54,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8312882] [2021-11-22 16:20:54,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:20:54,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:20:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:20:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:20:55,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:20:55,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8312882] [2021-11-22 16:20:55,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8312882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:20:55,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:20:55,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:20:55,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746826797] [2021-11-22 16:20:55,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:20:55,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:20:55,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:20:55,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:20:55,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:20:55,145 INFO L87 Difference]: Start difference. First operand 1153 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:55,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:20:55,975 INFO L93 Difference]: Finished difference Result 2679 states and 3481 transitions. [2021-11-22 16:20:55,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:20:55,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2021-11-22 16:20:55,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:20:55,986 INFO L225 Difference]: With dead ends: 2679 [2021-11-22 16:20:55,987 INFO L226 Difference]: Without dead ends: 1712 [2021-11-22 16:20:55,989 INFO L932 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 [2021-11-22 16:20:55,990 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 159 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:20:55,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 332 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:20:55,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2021-11-22 16:20:56,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1521. [2021-11-22 16:20:56,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 1.255921052631579) internal successors, (1909), 1520 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:56,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 1909 transitions. [2021-11-22 16:20:56,032 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 1909 transitions. Word has length 159 [2021-11-22 16:20:56,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:20:56,033 INFO L470 AbstractCegarLoop]: Abstraction has 1521 states and 1909 transitions. [2021-11-22 16:20:56,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:56,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 1909 transitions. [2021-11-22 16:20:56,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-22 16:20:56,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:20:56,038 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:20:56,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 16:20:56,039 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:20:56,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:20:56,040 INFO L85 PathProgramCache]: Analyzing trace with hash -47300224, now seen corresponding path program 1 times [2021-11-22 16:20:56,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:20:56,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575888887] [2021-11-22 16:20:56,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:20:56,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:20:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:20:56,200 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-22 16:20:56,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:20:56,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575888887] [2021-11-22 16:20:56,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575888887] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:20:56,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:20:56,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:20:56,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67595158] [2021-11-22 16:20:56,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:20:56,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:20:56,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:20:56,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:20:56,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:20:56,204 INFO L87 Difference]: Start difference. First operand 1521 states and 1909 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:20:57,201 INFO L93 Difference]: Finished difference Result 3597 states and 4559 transitions. [2021-11-22 16:20:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:20:57,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 229 [2021-11-22 16:20:57,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:20:57,217 INFO L225 Difference]: With dead ends: 3597 [2021-11-22 16:20:57,217 INFO L226 Difference]: Without dead ends: 2078 [2021-11-22 16:20:57,220 INFO L932 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 [2021-11-22 16:20:57,221 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 150 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-22 16:20:57,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 391 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-22 16:20:57,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2021-11-22 16:20:57,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1889. [2021-11-22 16:20:57,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1888 states have (on average 1.2473516949152543) internal successors, (2355), 1888 states have internal predecessors, (2355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:57,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2355 transitions. [2021-11-22 16:20:57,273 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2355 transitions. Word has length 229 [2021-11-22 16:20:57,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:20:57,274 INFO L470 AbstractCegarLoop]: Abstraction has 1889 states and 2355 transitions. [2021-11-22 16:20:57,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:57,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2355 transitions. [2021-11-22 16:20:57,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-11-22 16:20:57,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:20:57,279 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:20:57,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 16:20:57,280 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:20:57,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:20:57,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1662120667, now seen corresponding path program 1 times [2021-11-22 16:20:57,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:20:57,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078437351] [2021-11-22 16:20:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:20:57,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:20:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:20:57,458 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:20:57,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:20:57,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078437351] [2021-11-22 16:20:57,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078437351] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:20:57,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:20:57,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:20:57,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228613826] [2021-11-22 16:20:57,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:20:57,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:20:57,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:20:57,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:20:57,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:20:57,462 INFO L87 Difference]: Start difference. First operand 1889 states and 2355 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:58,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:20:58,449 INFO L93 Difference]: Finished difference Result 5075 states and 6326 transitions. [2021-11-22 16:20:58,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:20:58,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 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 256 [2021-11-22 16:20:58,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:20:58,469 INFO L225 Difference]: With dead ends: 5075 [2021-11-22 16:20:58,469 INFO L226 Difference]: Without dead ends: 3188 [2021-11-22 16:20:58,472 INFO L932 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 [2021-11-22 16:20:58,474 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 121 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-22 16:20:58,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 142 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-22 16:20:58,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2021-11-22 16:20:58,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3186. [2021-11-22 16:20:58,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 3185 states have (on average 1.2156985871271586) internal successors, (3872), 3185 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:58,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 3872 transitions. [2021-11-22 16:20:58,570 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 3872 transitions. Word has length 256 [2021-11-22 16:20:58,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:20:58,570 INFO L470 AbstractCegarLoop]: Abstraction has 3186 states and 3872 transitions. [2021-11-22 16:20:58,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:58,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 3872 transitions. [2021-11-22 16:20:58,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-22 16:20:58,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:20:58,577 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:20:58,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 16:20:58,577 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:20:58,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:20:58,579 INFO L85 PathProgramCache]: Analyzing trace with hash -287769023, now seen corresponding path program 1 times [2021-11-22 16:20:58,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:20:58,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406037320] [2021-11-22 16:20:58,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:20:58,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:20:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:20:58,772 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-22 16:20:58,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:20:58,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406037320] [2021-11-22 16:20:58,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406037320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:20:58,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:20:58,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:20:58,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895052518] [2021-11-22 16:20:58,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:20:58,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:20:58,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:20:58,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:20:58,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:20:58,775 INFO L87 Difference]: Start difference. First operand 3186 states and 3872 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:59,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:20:59,731 INFO L93 Difference]: Finished difference Result 6928 states and 8407 transitions. [2021-11-22 16:20:59,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:20:59,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 265 [2021-11-22 16:20:59,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:20:59,755 INFO L225 Difference]: With dead ends: 6928 [2021-11-22 16:20:59,756 INFO L226 Difference]: Without dead ends: 3744 [2021-11-22 16:20:59,760 INFO L932 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 [2021-11-22 16:20:59,764 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 173 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-22 16:20:59,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 140 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-22 16:20:59,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2021-11-22 16:20:59,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3186. [2021-11-22 16:20:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 3185 states have (on average 1.2156985871271586) internal successors, (3872), 3185 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:59,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 3872 transitions. [2021-11-22 16:20:59,857 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 3872 transitions. Word has length 265 [2021-11-22 16:20:59,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:20:59,858 INFO L470 AbstractCegarLoop]: Abstraction has 3186 states and 3872 transitions. [2021-11-22 16:20:59,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:59,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 3872 transitions. [2021-11-22 16:20:59,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-22 16:20:59,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:20:59,864 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:20:59,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 16:20:59,865 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:20:59,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:20:59,867 INFO L85 PathProgramCache]: Analyzing trace with hash -592217694, now seen corresponding path program 1 times [2021-11-22 16:20:59,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:20:59,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85916937] [2021-11-22 16:20:59,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:20:59,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:20:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:00,091 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:21:00,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:00,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85916937] [2021-11-22 16:21:00,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85916937] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:00,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:00,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:21:00,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685896957] [2021-11-22 16:21:00,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:00,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 16:21:00,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:00,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 16:21:00,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:21:00,094 INFO L87 Difference]: Start difference. First operand 3186 states and 3872 transitions. Second operand has 5 states, 5 states have (on average 53.2) internal successors, (266), 4 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:02,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:02,427 INFO L93 Difference]: Finished difference Result 11357 states and 13866 transitions. [2021-11-22 16:21:02,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 16:21:02,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.2) internal successors, (266), 4 states have internal predecessors, (266), 0 states have call successors, (0), 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 266 [2021-11-22 16:21:02,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:02,472 INFO L225 Difference]: With dead ends: 11357 [2021-11-22 16:21:02,473 INFO L226 Difference]: Without dead ends: 8173 [2021-11-22 16:21:02,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:21:02,479 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 383 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1888 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:02,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 151 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1888 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-22 16:21:02,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8173 states. [2021-11-22 16:21:02,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8173 to 7978. [2021-11-22 16:21:02,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7978 states, 7977 states have (on average 1.184655885671305) internal successors, (9450), 7977 states have internal predecessors, (9450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:02,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7978 states to 7978 states and 9450 transitions. [2021-11-22 16:21:02,751 INFO L78 Accepts]: Start accepts. Automaton has 7978 states and 9450 transitions. Word has length 266 [2021-11-22 16:21:02,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:02,754 INFO L470 AbstractCegarLoop]: Abstraction has 7978 states and 9450 transitions. [2021-11-22 16:21:02,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.2) internal successors, (266), 4 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:02,754 INFO L276 IsEmpty]: Start isEmpty. Operand 7978 states and 9450 transitions. [2021-11-22 16:21:02,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-11-22 16:21:02,763 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:02,763 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:02,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 16:21:02,764 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:02,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:02,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1968548590, now seen corresponding path program 1 times [2021-11-22 16:21:02,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:02,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747692920] [2021-11-22 16:21:02,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:02,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:02,898 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:21:02,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:02,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747692920] [2021-11-22 16:21:02,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747692920] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:02,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:02,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:02,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376237842] [2021-11-22 16:21:02,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:02,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:21:02,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:02,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:21:02,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:21:02,902 INFO L87 Difference]: Start difference. First operand 7978 states and 9450 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:03,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:03,767 INFO L93 Difference]: Finished difference Result 15584 states and 18510 transitions. [2021-11-22 16:21:03,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:21:03,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 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 271 [2021-11-22 16:21:03,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:03,810 INFO L225 Difference]: With dead ends: 15584 [2021-11-22 16:21:03,810 INFO L226 Difference]: Without dead ends: 7976 [2021-11-22 16:21:03,818 INFO L932 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 [2021-11-22 16:21:03,819 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 136 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:03,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 304 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-22 16:21:03,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2021-11-22 16:21:03,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 7792. [2021-11-22 16:21:03,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7792 states, 7791 states have (on average 1.145295854190733) internal successors, (8923), 7791 states have internal predecessors, (8923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:03,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7792 states to 7792 states and 8923 transitions. [2021-11-22 16:21:03,985 INFO L78 Accepts]: Start accepts. Automaton has 7792 states and 8923 transitions. Word has length 271 [2021-11-22 16:21:03,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:03,986 INFO L470 AbstractCegarLoop]: Abstraction has 7792 states and 8923 transitions. [2021-11-22 16:21:03,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:03,987 INFO L276 IsEmpty]: Start isEmpty. Operand 7792 states and 8923 transitions. [2021-11-22 16:21:03,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-11-22 16:21:03,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:03,995 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:03,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 16:21:03,996 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:03,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:03,997 INFO L85 PathProgramCache]: Analyzing trace with hash 63284525, now seen corresponding path program 1 times [2021-11-22 16:21:03,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:03,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329097731] [2021-11-22 16:21:03,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:03,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:04,142 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:21:04,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:04,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329097731] [2021-11-22 16:21:04,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329097731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:04,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:04,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:21:04,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264380569] [2021-11-22 16:21:04,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:04,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:21:04,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:04,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:21:04,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:21:04,146 INFO L87 Difference]: Start difference. First operand 7792 states and 8923 transitions. Second operand has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:05,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:05,586 INFO L93 Difference]: Finished difference Result 17060 states and 19558 transitions. [2021-11-22 16:21:05,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:21:05,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 0 states have call successors, (0), 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 283 [2021-11-22 16:21:05,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:05,625 INFO L225 Difference]: With dead ends: 17060 [2021-11-22 16:21:05,625 INFO L226 Difference]: Without dead ends: 9638 [2021-11-22 16:21:05,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:21:05,634 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 270 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:05,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 96 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-22 16:21:05,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9638 states. [2021-11-22 16:21:05,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9638 to 9632. [2021-11-22 16:21:05,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9632 states, 9631 states have (on average 1.1318658498598277) internal successors, (10901), 9631 states have internal predecessors, (10901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:05,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9632 states to 9632 states and 10901 transitions. [2021-11-22 16:21:05,802 INFO L78 Accepts]: Start accepts. Automaton has 9632 states and 10901 transitions. Word has length 283 [2021-11-22 16:21:05,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:05,803 INFO L470 AbstractCegarLoop]: Abstraction has 9632 states and 10901 transitions. [2021-11-22 16:21:05,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:05,803 INFO L276 IsEmpty]: Start isEmpty. Operand 9632 states and 10901 transitions. [2021-11-22 16:21:05,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-11-22 16:21:05,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:05,814 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:05,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-22 16:21:05,815 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:05,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:05,815 INFO L85 PathProgramCache]: Analyzing trace with hash 240124637, now seen corresponding path program 1 times [2021-11-22 16:21:05,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:05,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739134244] [2021-11-22 16:21:05,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:05,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:05,964 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-22 16:21:05,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:05,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739134244] [2021-11-22 16:21:05,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739134244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:05,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:05,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:05,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330057769] [2021-11-22 16:21:05,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:05,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:21:05,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:05,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:21:05,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:21:05,968 INFO L87 Difference]: Start difference. First operand 9632 states and 10901 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:06,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:06,802 INFO L93 Difference]: Finished difference Result 19631 states and 22247 transitions. [2021-11-22 16:21:06,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:21:06,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 315 [2021-11-22 16:21:06,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:06,824 INFO L225 Difference]: With dead ends: 19631 [2021-11-22 16:21:06,824 INFO L226 Difference]: Without dead ends: 10369 [2021-11-22 16:21:06,834 INFO L932 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 [2021-11-22 16:21:06,835 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 172 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:06,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 124 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:21:06,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10369 states. [2021-11-22 16:21:06,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10369 to 8888. [2021-11-22 16:21:06,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8888 states, 8887 states have (on average 1.1301901654101496) internal successors, (10044), 8887 states have internal predecessors, (10044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:07,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8888 states to 8888 states and 10044 transitions. [2021-11-22 16:21:07,005 INFO L78 Accepts]: Start accepts. Automaton has 8888 states and 10044 transitions. Word has length 315 [2021-11-22 16:21:07,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:07,006 INFO L470 AbstractCegarLoop]: Abstraction has 8888 states and 10044 transitions. [2021-11-22 16:21:07,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:07,006 INFO L276 IsEmpty]: Start isEmpty. Operand 8888 states and 10044 transitions. [2021-11-22 16:21:07,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-11-22 16:21:07,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:07,030 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:07,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 16:21:07,030 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:07,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:07,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1241149180, now seen corresponding path program 1 times [2021-11-22 16:21:07,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:07,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539158222] [2021-11-22 16:21:07,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:07,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:07,260 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-11-22 16:21:07,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:07,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539158222] [2021-11-22 16:21:07,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539158222] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:07,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:07,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:07,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864035636] [2021-11-22 16:21:07,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:07,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:21:07,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:07,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:21:07,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:21:07,264 INFO L87 Difference]: Start difference. First operand 8888 states and 10044 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:08,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:08,217 INFO L93 Difference]: Finished difference Result 18334 states and 20776 transitions. [2021-11-22 16:21:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:21:08,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 412 [2021-11-22 16:21:08,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:08,238 INFO L225 Difference]: With dead ends: 18334 [2021-11-22 16:21:08,238 INFO L226 Difference]: Without dead ends: 9816 [2021-11-22 16:21:08,247 INFO L932 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 [2021-11-22 16:21:08,248 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 65 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:08,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 363 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-22 16:21:08,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9816 states. [2021-11-22 16:21:08,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9816 to 9813. [2021-11-22 16:21:08,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9813 states, 9812 states have (on average 1.1271911944557684) internal successors, (11060), 9812 states have internal predecessors, (11060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:08,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9813 states to 9813 states and 11060 transitions. [2021-11-22 16:21:08,405 INFO L78 Accepts]: Start accepts. Automaton has 9813 states and 11060 transitions. Word has length 412 [2021-11-22 16:21:08,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:08,406 INFO L470 AbstractCegarLoop]: Abstraction has 9813 states and 11060 transitions. [2021-11-22 16:21:08,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:08,407 INFO L276 IsEmpty]: Start isEmpty. Operand 9813 states and 11060 transitions. [2021-11-22 16:21:08,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2021-11-22 16:21:08,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:08,424 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:08,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-22 16:21:08,424 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:08,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:08,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1908588689, now seen corresponding path program 1 times [2021-11-22 16:21:08,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:08,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996908734] [2021-11-22 16:21:08,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:08,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:08,784 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 462 proven. 78 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-11-22 16:21:08,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:08,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996908734] [2021-11-22 16:21:08,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996908734] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:21:08,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016562324] [2021-11-22 16:21:08,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:08,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:21:08,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:21:08,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:21:08,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 16:21:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:08,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 16:21:09,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:21:09,996 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-22 16:21:09,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 16:21:09,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016562324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:09,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 16:21:09,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-22 16:21:09,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75815816] [2021-11-22 16:21:09,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:09,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:21:09,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:09,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:21:10,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:21:10,000 INFO L87 Difference]: Start difference. First operand 9813 states and 11060 transitions. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:10,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:10,787 INFO L93 Difference]: Finished difference Result 19441 states and 21929 transitions. [2021-11-22 16:21:10,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:21:10,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 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 416 [2021-11-22 16:21:10,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:10,845 INFO L225 Difference]: With dead ends: 19441 [2021-11-22 16:21:10,845 INFO L226 Difference]: Without dead ends: 9998 [2021-11-22 16:21:10,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:21:10,852 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 127 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:10,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 173 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-22 16:21:10,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9998 states. [2021-11-22 16:21:10,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9998 to 9813. [2021-11-22 16:21:10,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9813 states, 9812 states have (on average 1.1229107215654301) internal successors, (11018), 9812 states have internal predecessors, (11018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:11,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9813 states to 9813 states and 11018 transitions. [2021-11-22 16:21:11,005 INFO L78 Accepts]: Start accepts. Automaton has 9813 states and 11018 transitions. Word has length 416 [2021-11-22 16:21:11,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:11,006 INFO L470 AbstractCegarLoop]: Abstraction has 9813 states and 11018 transitions. [2021-11-22 16:21:11,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:11,007 INFO L276 IsEmpty]: Start isEmpty. Operand 9813 states and 11018 transitions. [2021-11-22 16:21:11,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2021-11-22 16:21:11,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:11,025 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:11,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 16:21:11,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-22 16:21:11,239 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:11,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:11,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1076489507, now seen corresponding path program 1 times [2021-11-22 16:21:11,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:11,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634385383] [2021-11-22 16:21:11,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:11,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:11,594 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-22 16:21:11,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:11,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634385383] [2021-11-22 16:21:11,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634385383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:11,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:11,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 16:21:11,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678208536] [2021-11-22 16:21:11,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:11,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 16:21:11,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:11,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 16:21:11,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:21:11,599 INFO L87 Difference]: Start difference. First operand 9813 states and 11018 transitions. Second operand has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 6 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:13,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:13,397 INFO L93 Difference]: Finished difference Result 22949 states and 25728 transitions. [2021-11-22 16:21:13,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 16:21:13,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 6 states have internal predecessors, (373), 0 states have call successors, (0), 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 417 [2021-11-22 16:21:13,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:13,425 INFO L225 Difference]: With dead ends: 22949 [2021-11-22 16:21:13,426 INFO L226 Difference]: Without dead ends: 13506 [2021-11-22 16:21:13,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-22 16:21:13,435 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 310 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:13,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 218 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-22 16:21:13,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13506 states. [2021-11-22 16:21:13,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13506 to 12944. [2021-11-22 16:21:13,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12944 states, 12943 states have (on average 1.1209920420304411) internal successors, (14509), 12943 states have internal predecessors, (14509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:13,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12944 states to 12944 states and 14509 transitions. [2021-11-22 16:21:13,644 INFO L78 Accepts]: Start accepts. Automaton has 12944 states and 14509 transitions. Word has length 417 [2021-11-22 16:21:13,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:13,645 INFO L470 AbstractCegarLoop]: Abstraction has 12944 states and 14509 transitions. [2021-11-22 16:21:13,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 6 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:13,645 INFO L276 IsEmpty]: Start isEmpty. Operand 12944 states and 14509 transitions. [2021-11-22 16:21:13,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-11-22 16:21:13,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:13,699 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:13,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-22 16:21:13,700 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:13,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:13,700 INFO L85 PathProgramCache]: Analyzing trace with hash 835183340, now seen corresponding path program 1 times [2021-11-22 16:21:13,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:13,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065805875] [2021-11-22 16:21:13,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:13,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:13,929 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 427 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 16:21:13,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:13,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065805875] [2021-11-22 16:21:13,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065805875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:13,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:13,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:13,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576476560] [2021-11-22 16:21:13,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:13,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:21:13,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:13,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:21:13,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:21:13,934 INFO L87 Difference]: Start difference. First operand 12944 states and 14509 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:14,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:14,897 INFO L93 Difference]: Finished difference Result 28094 states and 31494 transitions. [2021-11-22 16:21:14,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:21:14,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 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 418 [2021-11-22 16:21:14,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:14,922 INFO L225 Difference]: With dead ends: 28094 [2021-11-22 16:21:14,923 INFO L226 Difference]: Without dead ends: 13491 [2021-11-22 16:21:14,932 INFO L932 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 [2021-11-22 16:21:14,933 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 122 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:14,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 323 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-22 16:21:14,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13491 states. [2021-11-22 16:21:15,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13491 to 13491. [2021-11-22 16:21:15,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13491 states, 13490 states have (on average 1.1066716085989623) internal successors, (14929), 13490 states have internal predecessors, (14929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:15,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 14929 transitions. [2021-11-22 16:21:15,281 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 14929 transitions. Word has length 418 [2021-11-22 16:21:15,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:15,282 INFO L470 AbstractCegarLoop]: Abstraction has 13491 states and 14929 transitions. [2021-11-22 16:21:15,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:15,282 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 14929 transitions. [2021-11-22 16:21:15,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-11-22 16:21:15,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:15,298 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:15,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-22 16:21:15,298 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:15,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:15,299 INFO L85 PathProgramCache]: Analyzing trace with hash -740708408, now seen corresponding path program 1 times [2021-11-22 16:21:15,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:15,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597942687] [2021-11-22 16:21:15,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:15,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:15,473 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-11-22 16:21:15,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:15,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597942687] [2021-11-22 16:21:15,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597942687] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:15,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:15,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:15,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896609039] [2021-11-22 16:21:15,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:15,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:21:15,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:15,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:21:15,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:21:15,476 INFO L87 Difference]: Start difference. First operand 13491 states and 14929 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:16,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:16,376 INFO L93 Difference]: Finished difference Result 27899 states and 30921 transitions. [2021-11-22 16:21:16,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:21:16,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 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 426 [2021-11-22 16:21:16,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:16,395 INFO L225 Difference]: With dead ends: 27899 [2021-11-22 16:21:16,395 INFO L226 Difference]: Without dead ends: 14778 [2021-11-22 16:21:16,404 INFO L932 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 [2021-11-22 16:21:16,404 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 199 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:16,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 341 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:21:16,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14778 states. [2021-11-22 16:21:16,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14778 to 14594. [2021-11-22 16:21:16,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14594 states, 14593 states have (on average 1.1035427944905092) internal successors, (16104), 14593 states have internal predecessors, (16104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14594 states to 14594 states and 16104 transitions. [2021-11-22 16:21:16,715 INFO L78 Accepts]: Start accepts. Automaton has 14594 states and 16104 transitions. Word has length 426 [2021-11-22 16:21:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:16,716 INFO L470 AbstractCegarLoop]: Abstraction has 14594 states and 16104 transitions. [2021-11-22 16:21:16,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:16,716 INFO L276 IsEmpty]: Start isEmpty. Operand 14594 states and 16104 transitions. [2021-11-22 16:21:16,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2021-11-22 16:21:16,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:16,732 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:16,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-22 16:21:16,732 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:16,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:16,733 INFO L85 PathProgramCache]: Analyzing trace with hash -406320324, now seen corresponding path program 1 times [2021-11-22 16:21:16,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:16,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753657703] [2021-11-22 16:21:16,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:16,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:17,163 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 395 proven. 8 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-22 16:21:17,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:17,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753657703] [2021-11-22 16:21:17,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753657703] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:21:17,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334204873] [2021-11-22 16:21:17,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:17,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:21:17,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:21:17,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:21:17,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 16:21:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:17,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 16:21:17,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:21:19,246 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 282 proven. 121 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-22 16:21:19,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:21:24,216 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 282 proven. 121 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-22 16:21:24,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334204873] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:21:24,216 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 16:21:24,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2021-11-22 16:21:24,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998579238] [2021-11-22 16:21:24,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 16:21:24,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 16:21:24,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:24,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 16:21:24,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-22 16:21:24,221 INFO L87 Difference]: Start difference. First operand 14594 states and 16104 transitions. Second operand has 11 states, 11 states have (on average 86.45454545454545) internal successors, (951), 10 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) [2021-11-22 16:21:28,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:28,897 INFO L93 Difference]: Finished difference Result 34968 states and 38363 transitions. [2021-11-22 16:21:28,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-22 16:21:28,897 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 86.45454545454545) internal successors, (951), 10 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) Word has length 427 [2021-11-22 16:21:28,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:28,915 INFO L225 Difference]: With dead ends: 34968 [2021-11-22 16:21:28,915 INFO L226 Difference]: Without dead ends: 20181 [2021-11-22 16:21:28,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 885 GetRequests, 850 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=363, Invalid=969, Unknown=0, NotChecked=0, Total=1332 [2021-11-22 16:21:28,926 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 1301 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 4459 mSolverCounterSat, 891 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 5350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 4459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:28,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 196 Invalid, 5350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 4459 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-22 16:21:28,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20181 states. [2021-11-22 16:21:29,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20181 to 12562. [2021-11-22 16:21:29,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12562 states, 12561 states have (on average 1.0829551787278082) internal successors, (13603), 12561 states have internal predecessors, (13603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:29,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12562 states to 12562 states and 13603 transitions. [2021-11-22 16:21:29,145 INFO L78 Accepts]: Start accepts. Automaton has 12562 states and 13603 transitions. Word has length 427 [2021-11-22 16:21:29,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:29,145 INFO L470 AbstractCegarLoop]: Abstraction has 12562 states and 13603 transitions. [2021-11-22 16:21:29,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 86.45454545454545) internal successors, (951), 10 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) [2021-11-22 16:21:29,146 INFO L276 IsEmpty]: Start isEmpty. Operand 12562 states and 13603 transitions. [2021-11-22 16:21:29,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2021-11-22 16:21:29,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:29,164 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:29,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-22 16:21:29,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-22 16:21:29,426 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:29,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:29,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1378519044, now seen corresponding path program 1 times [2021-11-22 16:21:29,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:29,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601834769] [2021-11-22 16:21:29,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:29,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-22 16:21:29,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:29,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601834769] [2021-11-22 16:21:29,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601834769] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:29,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:29,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:29,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845294104] [2021-11-22 16:21:29,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:29,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:21:29,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:29,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:21:29,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:21:29,660 INFO L87 Difference]: Start difference. First operand 12562 states and 13603 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:30,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:30,311 INFO L93 Difference]: Finished difference Result 26225 states and 28444 transitions. [2021-11-22 16:21:30,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:21:30,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 438 [2021-11-22 16:21:30,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:30,328 INFO L225 Difference]: With dead ends: 26225 [2021-11-22 16:21:30,328 INFO L226 Difference]: Without dead ends: 14033 [2021-11-22 16:21:30,336 INFO L932 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 [2021-11-22 16:21:30,337 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 173 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:30,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 112 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 16:21:30,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14033 states. [2021-11-22 16:21:30,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14033 to 12377. [2021-11-22 16:21:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12377 states, 12376 states have (on average 1.083710407239819) internal successors, (13412), 12376 states have internal predecessors, (13412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:30,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12377 states to 12377 states and 13412 transitions. [2021-11-22 16:21:30,524 INFO L78 Accepts]: Start accepts. Automaton has 12377 states and 13412 transitions. Word has length 438 [2021-11-22 16:21:30,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:30,525 INFO L470 AbstractCegarLoop]: Abstraction has 12377 states and 13412 transitions. [2021-11-22 16:21:30,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:30,525 INFO L276 IsEmpty]: Start isEmpty. Operand 12377 states and 13412 transitions. [2021-11-22 16:21:30,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-11-22 16:21:30,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:30,537 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:30,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-22 16:21:30,538 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:30,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:30,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1889494746, now seen corresponding path program 1 times [2021-11-22 16:21:30,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:30,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596672631] [2021-11-22 16:21:30,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:30,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:30,747 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:21:30,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:30,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596672631] [2021-11-22 16:21:30,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596672631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:30,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:30,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:21:30,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283564107] [2021-11-22 16:21:30,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:30,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:21:30,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:30,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:21:30,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:21:30,751 INFO L87 Difference]: Start difference. First operand 12377 states and 13412 transitions. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:31,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:31,923 INFO L93 Difference]: Finished difference Result 26600 states and 28818 transitions. [2021-11-22 16:21:31,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:21:31,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 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 449 [2021-11-22 16:21:31,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:31,935 INFO L225 Difference]: With dead ends: 26600 [2021-11-22 16:21:31,935 INFO L226 Difference]: Without dead ends: 14593 [2021-11-22 16:21:31,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:21:31,940 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 175 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:31,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 58 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-22 16:21:31,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14593 states. [2021-11-22 16:21:32,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14593 to 13299. [2021-11-22 16:21:32,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13299 states, 13298 states have (on average 1.0792600391036247) internal successors, (14352), 13298 states have internal predecessors, (14352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:32,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 14352 transitions. [2021-11-22 16:21:32,113 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 14352 transitions. Word has length 449 [2021-11-22 16:21:32,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:32,114 INFO L470 AbstractCegarLoop]: Abstraction has 13299 states and 14352 transitions. [2021-11-22 16:21:32,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:32,115 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 14352 transitions. [2021-11-22 16:21:32,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2021-11-22 16:21:32,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:32,125 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:32,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-22 16:21:32,126 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:32,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:32,126 INFO L85 PathProgramCache]: Analyzing trace with hash 630362065, now seen corresponding path program 1 times [2021-11-22 16:21:32,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:32,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175350730] [2021-11-22 16:21:32,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:32,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:32,321 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-22 16:21:32,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:32,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175350730] [2021-11-22 16:21:32,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175350730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:32,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:32,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:32,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435529532] [2021-11-22 16:21:32,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:32,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:21:32,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:32,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:21:32,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:21:32,325 INFO L87 Difference]: Start difference. First operand 13299 states and 14352 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:32,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:32,958 INFO L93 Difference]: Finished difference Result 27700 states and 29888 transitions. [2021-11-22 16:21:32,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:21:32,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 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 464 [2021-11-22 16:21:32,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:32,969 INFO L225 Difference]: With dead ends: 27700 [2021-11-22 16:21:32,970 INFO L226 Difference]: Without dead ends: 12930 [2021-11-22 16:21:32,977 INFO L932 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 [2021-11-22 16:21:32,977 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 109 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:32,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 290 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 16:21:32,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12930 states. [2021-11-22 16:21:33,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12930 to 12009. [2021-11-22 16:21:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12009 states, 12008 states have (on average 1.0646235842771485) internal successors, (12784), 12008 states have internal predecessors, (12784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:33,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12009 states to 12009 states and 12784 transitions. [2021-11-22 16:21:33,210 INFO L78 Accepts]: Start accepts. Automaton has 12009 states and 12784 transitions. Word has length 464 [2021-11-22 16:21:33,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:33,211 INFO L470 AbstractCegarLoop]: Abstraction has 12009 states and 12784 transitions. [2021-11-22 16:21:33,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:33,211 INFO L276 IsEmpty]: Start isEmpty. Operand 12009 states and 12784 transitions. [2021-11-22 16:21:33,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-11-22 16:21:33,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:33,218 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:33,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-22 16:21:33,219 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:33,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:33,219 INFO L85 PathProgramCache]: Analyzing trace with hash -13761946, now seen corresponding path program 1 times [2021-11-22 16:21:33,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:33,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004647482] [2021-11-22 16:21:33,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:33,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:33,572 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 535 proven. 162 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-11-22 16:21:33,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:33,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004647482] [2021-11-22 16:21:33,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004647482] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:21:33,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226917986] [2021-11-22 16:21:33,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:33,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:21:33,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:21:33,574 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:21:33,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 16:21:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:33,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 16:21:33,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:21:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-22 16:21:34,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 16:21:34,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226917986] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:34,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 16:21:34,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-11-22 16:21:34,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026944996] [2021-11-22 16:21:34,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:34,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:21:34,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:34,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:21:34,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-22 16:21:34,415 INFO L87 Difference]: Start difference. First operand 12009 states and 12784 transitions. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:35,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:35,070 INFO L93 Difference]: Finished difference Result 23836 states and 25386 transitions. [2021-11-22 16:21:35,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:21:35,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 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 502 [2021-11-22 16:21:35,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:35,084 INFO L225 Difference]: With dead ends: 23836 [2021-11-22 16:21:35,085 INFO L226 Difference]: Without dead ends: 12013 [2021-11-22 16:21:35,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-22 16:21:35,092 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 72 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:35,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 323 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 16:21:35,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12013 states. [2021-11-22 16:21:35,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12013 to 12009. [2021-11-22 16:21:35,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12009 states, 12008 states have (on average 1.0542971352431711) internal successors, (12660), 12008 states have internal predecessors, (12660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:35,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12009 states to 12009 states and 12660 transitions. [2021-11-22 16:21:35,305 INFO L78 Accepts]: Start accepts. Automaton has 12009 states and 12660 transitions. Word has length 502 [2021-11-22 16:21:35,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:35,305 INFO L470 AbstractCegarLoop]: Abstraction has 12009 states and 12660 transitions. [2021-11-22 16:21:35,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:35,306 INFO L276 IsEmpty]: Start isEmpty. Operand 12009 states and 12660 transitions. [2021-11-22 16:21:35,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2021-11-22 16:21:35,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:35,318 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:35,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 16:21:35,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:21:35,519 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:35,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:35,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1083232953, now seen corresponding path program 1 times [2021-11-22 16:21:35,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:35,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747578541] [2021-11-22 16:21:35,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:35,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 609 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-11-22 16:21:35,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:35,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747578541] [2021-11-22 16:21:35,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747578541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:35,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:35,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:35,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795228791] [2021-11-22 16:21:35,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:35,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:21:35,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:35,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:21:35,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:21:35,745 INFO L87 Difference]: Start difference. First operand 12009 states and 12660 transitions. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:36,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:36,686 INFO L93 Difference]: Finished difference Result 30656 states and 32329 transitions. [2021-11-22 16:21:36,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:21:36,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 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 506 [2021-11-22 16:21:36,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:36,703 INFO L225 Difference]: With dead ends: 30656 [2021-11-22 16:21:36,703 INFO L226 Difference]: Without dead ends: 18833 [2021-11-22 16:21:36,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:21:36,710 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 197 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:36,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 75 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:21:36,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18833 states. [2021-11-22 16:21:36,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18833 to 16433. [2021-11-22 16:21:36,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16433 states, 16432 states have (on average 1.0527020447906523) internal successors, (17298), 16432 states have internal predecessors, (17298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:36,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16433 states to 16433 states and 17298 transitions. [2021-11-22 16:21:36,899 INFO L78 Accepts]: Start accepts. Automaton has 16433 states and 17298 transitions. Word has length 506 [2021-11-22 16:21:36,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:36,900 INFO L470 AbstractCegarLoop]: Abstraction has 16433 states and 17298 transitions. [2021-11-22 16:21:36,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 16433 states and 17298 transitions. [2021-11-22 16:21:36,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2021-11-22 16:21:36,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:36,912 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:36,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-22 16:21:36,912 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:36,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:36,913 INFO L85 PathProgramCache]: Analyzing trace with hash 450076133, now seen corresponding path program 1 times [2021-11-22 16:21:36,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:36,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237206783] [2021-11-22 16:21:36,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:36,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 601 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-11-22 16:21:37,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:37,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237206783] [2021-11-22 16:21:37,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237206783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:37,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:37,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:37,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109058942] [2021-11-22 16:21:37,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:37,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:21:37,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:37,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:21:37,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:21:37,123 INFO L87 Difference]: Start difference. First operand 16433 states and 17298 transitions. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:38,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:38,285 INFO L93 Difference]: Finished difference Result 31766 states and 33487 transitions. [2021-11-22 16:21:38,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:21:38,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 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 530 [2021-11-22 16:21:38,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:38,300 INFO L225 Difference]: With dead ends: 31766 [2021-11-22 16:21:38,300 INFO L226 Difference]: Without dead ends: 17177 [2021-11-22 16:21:38,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:21:38,306 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 220 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:38,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 89 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-22 16:21:38,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17177 states. [2021-11-22 16:21:38,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17177 to 16803. [2021-11-22 16:21:38,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16803 states, 16802 states have (on average 1.0520771336745625) internal successors, (17677), 16802 states have internal predecessors, (17677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:38,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16803 states to 16803 states and 17677 transitions. [2021-11-22 16:21:38,488 INFO L78 Accepts]: Start accepts. Automaton has 16803 states and 17677 transitions. Word has length 530 [2021-11-22 16:21:38,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:38,488 INFO L470 AbstractCegarLoop]: Abstraction has 16803 states and 17677 transitions. [2021-11-22 16:21:38,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:38,489 INFO L276 IsEmpty]: Start isEmpty. Operand 16803 states and 17677 transitions. [2021-11-22 16:21:38,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2021-11-22 16:21:38,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:38,500 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:38,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-22 16:21:38,501 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:38,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash -415550207, now seen corresponding path program 1 times [2021-11-22 16:21:38,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:38,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297591184] [2021-11-22 16:21:38,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:38,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:38,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 694 proven. 0 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2021-11-22 16:21:38,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:38,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297591184] [2021-11-22 16:21:38,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297591184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:38,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:38,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:38,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207200747] [2021-11-22 16:21:38,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:38,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:21:38,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:38,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:21:38,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:21:38,702 INFO L87 Difference]: Start difference. First operand 16803 states and 17677 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:39,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:39,268 INFO L93 Difference]: Finished difference Result 31577 states and 33242 transitions. [2021-11-22 16:21:39,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:21:39,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 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 583 [2021-11-22 16:21:39,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:39,286 INFO L225 Difference]: With dead ends: 31577 [2021-11-22 16:21:39,287 INFO L226 Difference]: Without dead ends: 16618 [2021-11-22 16:21:39,295 INFO L932 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 [2021-11-22 16:21:39,296 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 191 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:39,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 313 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 16:21:39,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16618 states. [2021-11-22 16:21:39,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16618 to 16618. [2021-11-22 16:21:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16618 states, 16617 states have (on average 1.0513931515917434) internal successors, (17471), 16617 states have internal predecessors, (17471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:39,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16618 states to 16618 states and 17471 transitions. [2021-11-22 16:21:39,490 INFO L78 Accepts]: Start accepts. Automaton has 16618 states and 17471 transitions. Word has length 583 [2021-11-22 16:21:39,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:39,490 INFO L470 AbstractCegarLoop]: Abstraction has 16618 states and 17471 transitions. [2021-11-22 16:21:39,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:39,491 INFO L276 IsEmpty]: Start isEmpty. Operand 16618 states and 17471 transitions. [2021-11-22 16:21:39,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2021-11-22 16:21:39,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:39,499 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:39,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-22 16:21:39,499 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:39,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:39,500 INFO L85 PathProgramCache]: Analyzing trace with hash -673100433, now seen corresponding path program 1 times [2021-11-22 16:21:39,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:39,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675624891] [2021-11-22 16:21:39,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:39,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:39,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-11-22 16:21:39,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:39,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675624891] [2021-11-22 16:21:39,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675624891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:39,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:39,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:39,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509877301] [2021-11-22 16:21:39,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:39,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:21:39,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:39,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:21:39,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:21:39,786 INFO L87 Difference]: Start difference. First operand 16618 states and 17471 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:40,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:40,388 INFO L93 Difference]: Finished difference Result 34354 states and 36150 transitions. [2021-11-22 16:21:40,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:21:40,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 613 [2021-11-22 16:21:40,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:40,403 INFO L225 Difference]: With dead ends: 34354 [2021-11-22 16:21:40,403 INFO L226 Difference]: Without dead ends: 19580 [2021-11-22 16:21:40,410 INFO L932 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 [2021-11-22 16:21:40,412 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 61 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:40,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 117 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 16:21:40,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19580 states. [2021-11-22 16:21:40,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19580 to 17170. [2021-11-22 16:21:40,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17170 states, 17169 states have (on average 1.0509639466480285) internal successors, (18044), 17169 states have internal predecessors, (18044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:40,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17170 states to 17170 states and 18044 transitions. [2021-11-22 16:21:40,619 INFO L78 Accepts]: Start accepts. Automaton has 17170 states and 18044 transitions. Word has length 613 [2021-11-22 16:21:40,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:40,619 INFO L470 AbstractCegarLoop]: Abstraction has 17170 states and 18044 transitions. [2021-11-22 16:21:40,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:40,619 INFO L276 IsEmpty]: Start isEmpty. Operand 17170 states and 18044 transitions. [2021-11-22 16:21:40,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2021-11-22 16:21:40,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:40,629 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:40,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-22 16:21:40,629 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:40,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:40,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1558333360, now seen corresponding path program 1 times [2021-11-22 16:21:40,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:40,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594330512] [2021-11-22 16:21:40,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:40,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 946 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2021-11-22 16:21:40,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:40,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594330512] [2021-11-22 16:21:40,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594330512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:40,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:40,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:40,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654474973] [2021-11-22 16:21:40,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:40,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:21:40,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:40,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:21:40,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:21:40,873 INFO L87 Difference]: Start difference. First operand 17170 states and 18044 transitions. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:41,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:41,843 INFO L93 Difference]: Finished difference Result 34530 states and 36320 transitions. [2021-11-22 16:21:41,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:21:41,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 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 614 [2021-11-22 16:21:41,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:41,856 INFO L225 Difference]: With dead ends: 34530 [2021-11-22 16:21:41,856 INFO L226 Difference]: Without dead ends: 19020 [2021-11-22 16:21:41,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:21:41,861 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 181 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:41,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 72 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:21:41,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19020 states. [2021-11-22 16:21:41,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19020 to 16250. [2021-11-22 16:21:42,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16250 states, 16249 states have (on average 1.0507723552218597) internal successors, (17074), 16249 states have internal predecessors, (17074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:42,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16250 states to 16250 states and 17074 transitions. [2021-11-22 16:21:42,019 INFO L78 Accepts]: Start accepts. Automaton has 16250 states and 17074 transitions. Word has length 614 [2021-11-22 16:21:42,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:42,020 INFO L470 AbstractCegarLoop]: Abstraction has 16250 states and 17074 transitions. [2021-11-22 16:21:42,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:42,020 INFO L276 IsEmpty]: Start isEmpty. Operand 16250 states and 17074 transitions. [2021-11-22 16:21:42,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2021-11-22 16:21:42,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:42,028 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:42,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-22 16:21:42,028 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:42,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:42,029 INFO L85 PathProgramCache]: Analyzing trace with hash 425200427, now seen corresponding path program 1 times [2021-11-22 16:21:42,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:42,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107532900] [2021-11-22 16:21:42,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:42,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:42,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 1140 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-22 16:21:42,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:42,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107532900] [2021-11-22 16:21:42,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107532900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:42,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:42,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:21:42,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049201608] [2021-11-22 16:21:42,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:42,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:21:42,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:42,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:21:42,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:21:42,276 INFO L87 Difference]: Start difference. First operand 16250 states and 17074 transitions. Second operand has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:43,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:43,208 INFO L93 Difference]: Finished difference Result 33977 states and 35786 transitions. [2021-11-22 16:21:43,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:21:43,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 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 620 [2021-11-22 16:21:43,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:43,224 INFO L225 Difference]: With dead ends: 33977 [2021-11-22 16:21:43,224 INFO L226 Difference]: Without dead ends: 17915 [2021-11-22 16:21:43,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:21:43,231 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 186 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:43,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 73 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:21:43,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17915 states. [2021-11-22 16:21:43,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17915 to 17910. [2021-11-22 16:21:43,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17910 states, 17909 states have (on average 1.0518733597632475) internal successors, (18838), 17909 states have internal predecessors, (18838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:43,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17910 states to 17910 states and 18838 transitions. [2021-11-22 16:21:43,511 INFO L78 Accepts]: Start accepts. Automaton has 17910 states and 18838 transitions. Word has length 620 [2021-11-22 16:21:43,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:43,512 INFO L470 AbstractCegarLoop]: Abstraction has 17910 states and 18838 transitions. [2021-11-22 16:21:43,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:43,512 INFO L276 IsEmpty]: Start isEmpty. Operand 17910 states and 18838 transitions. [2021-11-22 16:21:43,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2021-11-22 16:21:43,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:43,525 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:43,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-22 16:21:43,525 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:43,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:43,526 INFO L85 PathProgramCache]: Analyzing trace with hash -2023009957, now seen corresponding path program 1 times [2021-11-22 16:21:43,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:43,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318756964] [2021-11-22 16:21:43,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:43,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:43,815 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2021-11-22 16:21:43,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:43,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318756964] [2021-11-22 16:21:43,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318756964] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:43,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:43,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:21:43,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816102399] [2021-11-22 16:21:43,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:43,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:21:43,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:43,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:21:43,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:21:43,819 INFO L87 Difference]: Start difference. First operand 17910 states and 18838 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:44,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:44,469 INFO L93 Difference]: Finished difference Result 18097 states and 19036 transitions. [2021-11-22 16:21:44,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:21:44,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 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 627 [2021-11-22 16:21:44,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:44,470 INFO L225 Difference]: With dead ends: 18097 [2021-11-22 16:21:44,470 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 16:21:44,474 INFO L932 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 [2021-11-22 16:21:44,475 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 143 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:44,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 322 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 16:21:44,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 16:21:44,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 16:21:44,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 16:21:44,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 627 [2021-11-22 16:21:44,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:44,477 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:21:44,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:44,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 16:21:44,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 16:21:44,479 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 16:21:44,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-22 16:21:44,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 16:21:51,745 WARN L227 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 833 DAG size of output: 830 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-22 16:21:57,642 WARN L227 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 833 DAG size of output: 830 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-22 16:22:03,740 WARN L227 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 830 DAG size of output: 149 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-22 16:22:09,591 WARN L227 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 830 DAG size of output: 149 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-22 16:22:09,594 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-11-22 16:22:09,595 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,595 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-11-22 16:22:09,595 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,595 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,595 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,595 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,595 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,595 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,595 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-11-22 16:22:09,595 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-11-22 16:22:09,595 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-11-22 16:22:09,595 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,596 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,596 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,596 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,596 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,596 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,596 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,596 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,596 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,596 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,596 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-11-22 16:22:09,596 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-11-22 16:22:09,596 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-11-22 16:22:09,597 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,597 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-11-22 16:22:09,597 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-11-22 16:22:09,597 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,597 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,597 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,597 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,598 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,598 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,598 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-22 16:22:09,598 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-11-22 16:22:09,598 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-11-22 16:22:09,598 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,599 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,599 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,599 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse26 (+ ~a23~0 43))) (let ((.cse21 (<= ~a23~0 306)) (.cse10 (= ~a25~0 12)) (.cse8 (< 0 .cse26))) (let ((.cse4 (or (< 140 ~a29~0) .cse8 (not (= ~a25~0 9)))) (.cse12 (< 306 ~a23~0)) (.cse5 (= ~a25~0 10)) (.cse22 (<= ~a29~0 245)) (.cse17 (<= ~a29~0 274)) (.cse18 (<= 261 ~a29~0)) (.cse13 (<= 130 ~a29~0)) (.cse14 (<= ~a23~0 138)) (.cse19 (= ~a25~0 11)) (.cse3 (<= ~a29~0 220)) (.cse23 (<= (+ 119992 ~a23~0) 0)) (.cse7 (<= ~a23~0 278)) (.cse6 (= ~a25~0 13)) (.cse25 (<= ~a29~0 232)) (.cse15 (<= .cse26 0)) (.cse24 (<= (+ ~a29~0 554036) 0)) (.cse2 (<= ~a25~0 10)) (.cse20 (<= 99915 ~a29~0)) (.cse0 (= ~a4~0 0)) (.cse11 (or (<= ~a29~0 277) .cse21 (not .cse10))) (.cse16 (<= ~a29~0 599998)) (.cse1 (<= (+ ~a29~0 22) 0)) (.cse9 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 0 (+ ~a29~0 28553)) .cse5) (and .cse6 .cse7 (<= 99912 ~a29~0) .cse8 .cse9) (and .cse10 .cse11 .cse12 .cse9 .cse13) (and .cse2 .cse14 .cse9) (and .cse0 .cse1 .cse2 .cse3 (<= (+ ~a23~0 599772) 0) .cse4) (and .cse15 .cse10 .cse0 .cse1) (and .cse6 .cse16 .cse12 .cse9) (and .cse10 .cse8 .cse17 .cse9 .cse13) (and .cse15 .cse18 .cse0 .cse2 .cse16) (and .cse2 .cse9 .cse5) (and .cse19 .cse8 .cse9 (<= ~a23~0 312)) (and .cse11 .cse8 .cse9 .cse20 (or (not .cse6) .cse21)) (and .cse15 .cse22 .cse9 .cse13) (and .cse6 .cse22 .cse9 .cse13) (and .cse10 .cse0 .cse17 .cse13) (and .cse6 .cse15 .cse0 .cse17 .cse13) (and .cse18 .cse0 .cse19 .cse16 .cse23) (and .cse19 .cse9 .cse13) (and .cse10 .cse0 .cse24) (and .cse2 .cse9 .cse13) (and .cse10 .cse14 .cse9 .cse25) (and .cse7 .cse10 .cse8 .cse9) (and .cse0 .cse8 .cse16 .cse14) (and .cse15 .cse0 .cse19 .cse1 .cse3) (and .cse0 .cse19 .cse3 .cse23) (and .cse7 .cse1 .cse8 .cse9 .cse25) (and .cse6 .cse8 .cse9 .cse25) (and .cse15 .cse0 .cse2 .cse24) (and (<= 260 ~a29~0) (or (and .cse0 .cse2 .cse20) (and .cse10 .cse0)) .cse11 .cse16) (and (not (= |ULTIMATE.start_calculate_output_~input#1| 1)) .cse10 .cse1 (= ~a3~0 1) .cse9 (<= 312 ~a23~0) (= ~a8~0 15)))))) [2021-11-22 16:22:09,599 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,600 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-11-22 16:22:09,600 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-11-22 16:22:09,600 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,600 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,600 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,600 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,600 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,601 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,601 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-11-22 16:22:09,601 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-11-22 16:22:09,601 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-11-22 16:22:09,601 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-11-22 16:22:09,601 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,601 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,602 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,602 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,602 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,602 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,602 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,602 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-11-22 16:22:09,603 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-11-22 16:22:09,603 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-11-22 16:22:09,603 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,603 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,603 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,603 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,603 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,604 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,604 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,604 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,604 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,604 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-11-22 16:22:09,604 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-11-22 16:22:09,604 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-11-22 16:22:09,605 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,605 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse26 (+ ~a23~0 43))) (let ((.cse21 (<= ~a23~0 306)) (.cse10 (= ~a25~0 12)) (.cse8 (< 0 .cse26))) (let ((.cse4 (or (< 140 ~a29~0) .cse8 (not (= ~a25~0 9)))) (.cse12 (< 306 ~a23~0)) (.cse5 (= ~a25~0 10)) (.cse22 (<= ~a29~0 245)) (.cse17 (<= ~a29~0 274)) (.cse18 (<= 261 ~a29~0)) (.cse13 (<= 130 ~a29~0)) (.cse14 (<= ~a23~0 138)) (.cse19 (= ~a25~0 11)) (.cse3 (<= ~a29~0 220)) (.cse23 (<= (+ 119992 ~a23~0) 0)) (.cse7 (<= ~a23~0 278)) (.cse6 (= ~a25~0 13)) (.cse25 (<= ~a29~0 232)) (.cse15 (<= .cse26 0)) (.cse24 (<= (+ ~a29~0 554036) 0)) (.cse2 (<= ~a25~0 10)) (.cse20 (<= 99915 ~a29~0)) (.cse0 (= ~a4~0 0)) (.cse11 (or (<= ~a29~0 277) .cse21 (not .cse10))) (.cse16 (<= ~a29~0 599998)) (.cse1 (<= (+ ~a29~0 22) 0)) (.cse9 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 0 (+ ~a29~0 28553)) .cse5) (and .cse6 .cse7 (<= 99912 ~a29~0) .cse8 .cse9) (and .cse10 .cse11 .cse12 .cse9 .cse13) (and .cse2 .cse14 .cse9) (and .cse0 .cse1 .cse2 .cse3 (<= (+ ~a23~0 599772) 0) .cse4) (and .cse15 .cse10 .cse0 .cse1) (and .cse6 .cse16 .cse12 .cse9) (and .cse10 .cse8 .cse17 .cse9 .cse13) (and .cse15 .cse18 .cse0 .cse2 .cse16) (and .cse2 .cse9 .cse5) (and .cse19 .cse8 .cse9 (<= ~a23~0 312)) (and .cse11 .cse8 .cse9 .cse20 (or (not .cse6) .cse21)) (and .cse15 .cse22 .cse9 .cse13) (and .cse6 .cse22 .cse9 .cse13) (and .cse10 .cse0 .cse17 .cse13) (and .cse6 .cse15 .cse0 .cse17 .cse13) (and .cse18 .cse0 .cse19 .cse16 .cse23) (and .cse19 .cse9 .cse13) (and .cse10 .cse0 .cse24) (and .cse2 .cse9 .cse13) (and .cse10 .cse14 .cse9 .cse25) (and .cse7 .cse10 .cse8 .cse9) (and .cse0 .cse8 .cse16 .cse14) (and .cse15 .cse0 .cse19 .cse1 .cse3) (and .cse0 .cse19 .cse3 .cse23) (and .cse7 .cse1 .cse8 .cse9 .cse25) (and .cse6 .cse8 .cse9 .cse25) (and .cse15 .cse0 .cse2 .cse24) (and (<= 260 ~a29~0) (or (and .cse0 .cse2 .cse20) (and .cse10 .cse0)) .cse11 .cse16) (and (not (= |ULTIMATE.start_calculate_output_~input#1| 1)) .cse10 .cse1 (= ~a3~0 1) .cse9 (<= 312 ~a23~0) (= ~a8~0 15)))))) [2021-11-22 16:22:09,605 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,605 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,605 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,606 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,607 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,607 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,607 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,607 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,607 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-11-22 16:22:09,608 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-11-22 16:22:09,608 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-11-22 16:22:09,608 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-11-22 16:22:09,608 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-11-22 16:22:09,608 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-11-22 16:22:09,608 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-11-22 16:22:09,608 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,609 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,609 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,609 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,609 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,609 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,609 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,609 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,610 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,610 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,610 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 16:22:09,610 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-11-22 16:22:09,610 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-11-22 16:22:09,610 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-11-22 16:22:09,610 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-11-22 16:22:09,611 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,611 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,611 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,611 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,611 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,611 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-11-22 16:22:09,611 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-11-22 16:22:09,611 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-11-22 16:22:09,611 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-11-22 16:22:09,612 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-11-22 16:22:09,613 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,614 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,615 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,616 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,617 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,618 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,618 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,618 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,618 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-11-22 16:22:09,618 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-11-22 16:22:09,618 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-11-22 16:22:09,618 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,619 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,619 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,619 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-11-22 16:22:09,619 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-11-22 16:22:09,619 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,619 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,619 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,620 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,620 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,620 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-11-22 16:22:09,620 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-11-22 16:22:09,620 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,620 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,620 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-11-22 16:22:09,621 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-11-22 16:22:09,621 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,621 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 16:22:09,621 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,621 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,621 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,621 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,622 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,622 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-11-22 16:22:09,622 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-11-22 16:22:09,622 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-11-22 16:22:09,622 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-11-22 16:22:09,622 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,622 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,623 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,623 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,623 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,623 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,623 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,623 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,623 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-11-22 16:22:09,623 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-11-22 16:22:09,623 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-11-22 16:22:09,624 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-11-22 16:22:09,624 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-11-22 16:22:09,624 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-11-22 16:22:09,624 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,624 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,624 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,624 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,625 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,625 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,625 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,625 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-11-22 16:22:09,625 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-11-22 16:22:09,625 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 16:22:09,626 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,626 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,626 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,626 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,626 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,626 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,626 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-11-22 16:22:09,627 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-11-22 16:22:09,627 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,627 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,627 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,627 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,627 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,627 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,628 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,628 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-11-22 16:22:09,628 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:22:09,628 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,628 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,628 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-11-22 16:22:09,628 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-11-22 16:22:09,629 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-11-22 16:22:09,629 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-11-22 16:22:09,632 INFO L732 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] [2021-11-22 16:22:09,634 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 16:22:09,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 04:22:09 BoogieIcfgContainer [2021-11-22 16:22:09,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 16:22:09,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:22:09,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:22:09,690 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:22:09,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:20:50" (3/4) ... [2021-11-22 16:22:09,694 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 16:22:09,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-22 16:22:09,741 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-22 16:22:09,743 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 16:22:09,745 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 16:22:09,916 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 16:22:09,916 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:22:09,917 INFO L158 Benchmark]: Toolchain (without parser) took 81921.02ms. Allocated memory was 109.1MB in the beginning and 1.0GB in the end (delta: 922.7MB). Free memory was 69.4MB in the beginning and 569.8MB in the end (delta: -500.5MB). Peak memory consumption was 422.2MB. Max. memory is 16.1GB. [2021-11-22 16:22:09,918 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory was 79.1MB in the beginning and 79.0MB in the end (delta: 26.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:22:09,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 871.26ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 69.1MB in the beginning and 100.3MB in the end (delta: -31.2MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2021-11-22 16:22:09,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 185.44ms. Allocated memory is still 132.1MB. Free memory was 99.6MB in the beginning and 82.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-22 16:22:09,921 INFO L158 Benchmark]: Boogie Preprocessor took 127.82ms. Allocated memory is still 132.1MB. Free memory was 82.9MB in the beginning and 73.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 16:22:09,921 INFO L158 Benchmark]: RCFGBuilder took 1787.65ms. Allocated memory was 132.1MB in the beginning and 199.2MB in the end (delta: 67.1MB). Free memory was 73.8MB in the beginning and 147.7MB in the end (delta: -73.9MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2021-11-22 16:22:09,925 INFO L158 Benchmark]: TraceAbstraction took 78714.10ms. Allocated memory was 199.2MB in the beginning and 1.0GB in the end (delta: 832.6MB). Free memory was 146.7MB in the beginning and 595.8MB in the end (delta: -449.1MB). Peak memory consumption was 789.6MB. Max. memory is 16.1GB. [2021-11-22 16:22:09,931 INFO L158 Benchmark]: Witness Printer took 226.80ms. Allocated memory is still 1.0GB. Free memory was 594.7MB in the beginning and 569.8MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-22 16:22:09,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory was 79.1MB in the beginning and 79.0MB in the end (delta: 26.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 871.26ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 69.1MB in the beginning and 100.3MB in the end (delta: -31.2MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 185.44ms. Allocated memory is still 132.1MB. Free memory was 99.6MB in the beginning and 82.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 127.82ms. Allocated memory is still 132.1MB. Free memory was 82.9MB in the beginning and 73.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1787.65ms. Allocated memory was 132.1MB in the beginning and 199.2MB in the end (delta: 67.1MB). Free memory was 73.8MB in the beginning and 147.7MB in the end (delta: -73.9MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. * TraceAbstraction took 78714.10ms. Allocated memory was 199.2MB in the beginning and 1.0GB in the end (delta: 832.6MB). Free memory was 146.7MB in the beginning and 595.8MB in the end (delta: -449.1MB). Peak memory consumption was 789.6MB. Max. memory is 16.1GB. * Witness Printer took 226.80ms. Allocated memory is still 1.0GB. Free memory was 594.7MB in the beginning and 569.8MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 157]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 78.6s, OverallIterations: 28, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 32.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 25.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5883 SdHoareTripleChecker+Valid, 27.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5883 mSDsluCounter, 5645 SdHoareTripleChecker+Invalid, 22.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 888 mSDsCounter, 3446 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24179 IncrementalHoareTripleChecker+Invalid, 27625 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3446 mSolverCounterUnsat, 4757 mSDtfsCounter, 24179 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1898 GetRequests, 1812 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17910occurred in iteration=27, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.6s AutomataMinimizationTime, 28 MinimizatonAttempts, 23204 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 277 NumberOfFragments, 1089 HoareAnnotationTreeSize, 3 FomulaSimplifications, 27292 FormulaSimplificationTreeSizeReduction, 13.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 168484 FormulaSimplificationTreeSizeReductionInter, 11.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 12.8s InterpolantComputationTime, 12128 NumberOfCodeBlocks, 12128 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 12523 ConstructedInterpolants, 0 QuantifiedInterpolants, 43991 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1849 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 32 InterpolantComputations, 27 PerfectInterpolantSequences, 16196/16686 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((a4 == 0 && a29 + 22 <= 0) && a25 <= 10) && a29 <= 220) && ((140 < a29 || 0 < a23 + 43) || !(a25 == 9))) && 0 <= a29 + 28553) && a25 == 10) || ((((a25 == 13 && a23 <= 278) && 99912 <= a29) && 0 < a23 + 43) && a4 == 1)) || ((((a25 == 12 && ((a29 <= 277 || a23 <= 306) || !(a25 == 12))) && 306 < a23) && a4 == 1) && 130 <= a29)) || ((a25 <= 10 && a23 <= 138) && a4 == 1)) || (((((a4 == 0 && a29 + 22 <= 0) && a25 <= 10) && a29 <= 220) && a23 + 599772 <= 0) && ((140 < a29 || 0 < a23 + 43) || !(a25 == 9)))) || (((a23 + 43 <= 0 && a25 == 12) && a4 == 0) && a29 + 22 <= 0)) || (((a25 == 13 && a29 <= 599998) && 306 < a23) && a4 == 1)) || ((((a25 == 12 && 0 < a23 + 43) && a29 <= 274) && a4 == 1) && 130 <= a29)) || ((((a23 + 43 <= 0 && 261 <= a29) && a4 == 0) && a25 <= 10) && a29 <= 599998)) || ((a25 <= 10 && a4 == 1) && a25 == 10)) || (((a25 == 11 && 0 < a23 + 43) && a4 == 1) && a23 <= 312)) || ((((((a29 <= 277 || a23 <= 306) || !(a25 == 12)) && 0 < a23 + 43) && a4 == 1) && 99915 <= a29) && (!(a25 == 13) || a23 <= 306))) || (((a23 + 43 <= 0 && a29 <= 245) && a4 == 1) && 130 <= a29)) || (((a25 == 13 && a29 <= 245) && a4 == 1) && 130 <= a29)) || (((a25 == 12 && a4 == 0) && a29 <= 274) && 130 <= a29)) || ((((a25 == 13 && a23 + 43 <= 0) && a4 == 0) && a29 <= 274) && 130 <= a29)) || ((((261 <= a29 && a4 == 0) && a25 == 11) && a29 <= 599998) && 119992 + a23 <= 0)) || ((a25 == 11 && a4 == 1) && 130 <= a29)) || ((a25 == 12 && a4 == 0) && a29 + 554036 <= 0)) || ((a25 <= 10 && a4 == 1) && 130 <= a29)) || (((a25 == 12 && a23 <= 138) && a4 == 1) && a29 <= 232)) || (((a23 <= 278 && a25 == 12) && 0 < a23 + 43) && a4 == 1)) || (((a4 == 0 && 0 < a23 + 43) && a29 <= 599998) && a23 <= 138)) || ((((a23 + 43 <= 0 && a4 == 0) && a25 == 11) && a29 + 22 <= 0) && a29 <= 220)) || (((a4 == 0 && a25 == 11) && a29 <= 220) && 119992 + a23 <= 0)) || ((((a23 <= 278 && a29 + 22 <= 0) && 0 < a23 + 43) && a4 == 1) && a29 <= 232)) || (((a25 == 13 && 0 < a23 + 43) && a4 == 1) && a29 <= 232)) || (((a23 + 43 <= 0 && a4 == 0) && a25 <= 10) && a29 + 554036 <= 0)) || (((260 <= a29 && (((a4 == 0 && a25 <= 10) && 99915 <= a29) || (a25 == 12 && a4 == 0))) && ((a29 <= 277 || a23 <= 306) || !(a25 == 12))) && a29 <= 599998)) || ((((((!(input == 1) && a25 == 12) && a29 + 22 <= 0) && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((a4 == 0 && a29 + 22 <= 0) && a25 <= 10) && a29 <= 220) && ((140 < a29 || 0 < a23 + 43) || !(a25 == 9))) && 0 <= a29 + 28553) && a25 == 10) || ((((a25 == 13 && a23 <= 278) && 99912 <= a29) && 0 < a23 + 43) && a4 == 1)) || ((((a25 == 12 && ((a29 <= 277 || a23 <= 306) || !(a25 == 12))) && 306 < a23) && a4 == 1) && 130 <= a29)) || ((a25 <= 10 && a23 <= 138) && a4 == 1)) || (((((a4 == 0 && a29 + 22 <= 0) && a25 <= 10) && a29 <= 220) && a23 + 599772 <= 0) && ((140 < a29 || 0 < a23 + 43) || !(a25 == 9)))) || (((a23 + 43 <= 0 && a25 == 12) && a4 == 0) && a29 + 22 <= 0)) || (((a25 == 13 && a29 <= 599998) && 306 < a23) && a4 == 1)) || ((((a25 == 12 && 0 < a23 + 43) && a29 <= 274) && a4 == 1) && 130 <= a29)) || ((((a23 + 43 <= 0 && 261 <= a29) && a4 == 0) && a25 <= 10) && a29 <= 599998)) || ((a25 <= 10 && a4 == 1) && a25 == 10)) || (((a25 == 11 && 0 < a23 + 43) && a4 == 1) && a23 <= 312)) || ((((((a29 <= 277 || a23 <= 306) || !(a25 == 12)) && 0 < a23 + 43) && a4 == 1) && 99915 <= a29) && (!(a25 == 13) || a23 <= 306))) || (((a23 + 43 <= 0 && a29 <= 245) && a4 == 1) && 130 <= a29)) || (((a25 == 13 && a29 <= 245) && a4 == 1) && 130 <= a29)) || (((a25 == 12 && a4 == 0) && a29 <= 274) && 130 <= a29)) || ((((a25 == 13 && a23 + 43 <= 0) && a4 == 0) && a29 <= 274) && 130 <= a29)) || ((((261 <= a29 && a4 == 0) && a25 == 11) && a29 <= 599998) && 119992 + a23 <= 0)) || ((a25 == 11 && a4 == 1) && 130 <= a29)) || ((a25 == 12 && a4 == 0) && a29 + 554036 <= 0)) || ((a25 <= 10 && a4 == 1) && 130 <= a29)) || (((a25 == 12 && a23 <= 138) && a4 == 1) && a29 <= 232)) || (((a23 <= 278 && a25 == 12) && 0 < a23 + 43) && a4 == 1)) || (((a4 == 0 && 0 < a23 + 43) && a29 <= 599998) && a23 <= 138)) || ((((a23 + 43 <= 0 && a4 == 0) && a25 == 11) && a29 + 22 <= 0) && a29 <= 220)) || (((a4 == 0 && a25 == 11) && a29 <= 220) && 119992 + a23 <= 0)) || ((((a23 <= 278 && a29 + 22 <= 0) && 0 < a23 + 43) && a4 == 1) && a29 <= 232)) || (((a25 == 13 && 0 < a23 + 43) && a4 == 1) && a29 <= 232)) || (((a23 + 43 <= 0 && a4 == 0) && a25 <= 10) && a29 + 554036 <= 0)) || (((260 <= a29 && (((a4 == 0 && a25 <= 10) && 99915 <= a29) || (a25 == 12 && a4 == 0))) && ((a29 <= 277 || a23 <= 306) || !(a25 == 12))) && a29 <= 599998)) || ((((((!(input == 1) && a25 == 12) && a29 + 22 <= 0) && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-22 16:22:09,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d4500b-4c4a-4d53-a80e-7d1bd83be1f0/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE