./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30f62f9fddfecd916215dd8f1b75b140359bb989ba38a829add2eea4e4b271dc ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:41:41,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:41:41,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:41:41,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:41:41,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:41:41,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:41:41,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:41:41,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:41:41,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:41:41,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:41:41,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:41:41,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:41:41,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:41:41,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:41:41,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:41:41,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:41:41,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:41:41,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:41:41,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:41:41,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:41:41,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:41:41,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:41:41,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:41:41,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:41:41,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:41:41,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:41:41,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:41:41,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:41:41,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:41:41,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:41:41,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:41:41,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:41:41,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:41:41,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:41:41,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:41:41,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:41:41,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:41:41,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:41:41,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:41:41,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:41:41,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:41:41,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:41:41,828 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:41:41,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:41:41,829 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:41:41,829 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:41:41,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:41:41,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:41:41,831 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:41:41,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:41:41,831 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:41:41,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:41:41,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:41:41,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:41:41,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:41:41,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:41:41,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:41:41,833 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:41:41,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:41:41,833 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:41:41,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:41:41,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:41:41,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:41:41,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:41:41,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:41:41,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:41:41,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:41:41,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:41:41,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:41:41,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:41:41,836 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:41:41,836 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:41:41,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:41:41,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:41:41,837 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_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f62f9fddfecd916215dd8f1b75b140359bb989ba38a829add2eea4e4b271dc [2021-10-28 09:41:42,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:41:42,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:41:42,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:41:42,177 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:41:42,178 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:41:42,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/eca-rers2012/Problem11_label02.c [2021-10-28 09:41:42,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/data/ad681499a/b9e480569b6e4b61929e40343686a88d/FLAGa18b7b3c3 [2021-10-28 09:41:43,011 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:41:43,015 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/sv-benchmarks/c/eca-rers2012/Problem11_label02.c [2021-10-28 09:41:43,041 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/data/ad681499a/b9e480569b6e4b61929e40343686a88d/FLAGa18b7b3c3 [2021-10-28 09:41:43,185 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/data/ad681499a/b9e480569b6e4b61929e40343686a88d [2021-10-28 09:41:43,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:41:43,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:41:43,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:41:43,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:41:43,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:41:43,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:41:43" (1/1) ... [2021-10-28 09:41:43,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e651d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:43, skipping insertion in model container [2021-10-28 09:41:43,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:41:43" (1/1) ... [2021-10-28 09:41:43,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:41:43,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:41:43,645 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/sv-benchmarks/c/eca-rers2012/Problem11_label02.c[7865,7878] [2021-10-28 09:41:43,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:41:43,982 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:41:44,034 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/sv-benchmarks/c/eca-rers2012/Problem11_label02.c[7865,7878] [2021-10-28 09:41:44,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:41:44,264 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:41:44,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:44 WrapperNode [2021-10-28 09:41:44,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:41:44,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:41:44,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:41:44,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:41:44,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:44" (1/1) ... [2021-10-28 09:41:44,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:44" (1/1) ... [2021-10-28 09:41:44,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:41:44,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:41:44,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:41:44,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:41:44,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:44" (1/1) ... [2021-10-28 09:41:44,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:44" (1/1) ... [2021-10-28 09:41:44,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:44" (1/1) ... [2021-10-28 09:41:44,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:44" (1/1) ... [2021-10-28 09:41:44,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:44" (1/1) ... [2021-10-28 09:41:44,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:44" (1/1) ... [2021-10-28 09:41:44,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:44" (1/1) ... [2021-10-28 09:41:44,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:41:44,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:41:44,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:41:44,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:41:44,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:44" (1/1) ... [2021-10-28 09:41:44,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:41:44,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:44,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:44,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:41:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:41:44,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:41:44,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:41:44,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:41:46,620 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:41:46,620 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 09:41:46,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:41:46 BoogieIcfgContainer [2021-10-28 09:41:46,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:41:46,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:41:46,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:41:46,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:41:46,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:41:43" (1/3) ... [2021-10-28 09:41:46,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42eae2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:41:46, skipping insertion in model container [2021-10-28 09:41:46,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:44" (2/3) ... [2021-10-28 09:41:46,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42eae2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:41:46, skipping insertion in model container [2021-10-28 09:41:46,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:41:46" (3/3) ... [2021-10-28 09:41:46,636 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label02.c [2021-10-28 09:41:46,645 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:41:46,646 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:41:46,717 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:41:46,726 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:41:46,726 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:41:46,760 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) [2021-10-28 09:41:46,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 09:41:46,771 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:46,772 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:46,773 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:46,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:46,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1425694346, now seen corresponding path program 1 times [2021-10-28 09:41:46,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:46,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567413259] [2021-10-28 09:41:46,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:46,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:47,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:47,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:47,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567413259] [2021-10-28 09:41:47,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567413259] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:47,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:47,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:41:47,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584743824] [2021-10-28 09:41:47,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:47,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:47,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:47,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:47,155 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 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:48,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:48,574 INFO L93 Difference]: Finished difference Result 769 states and 1360 transitions. [2021-10-28 09:41:48,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:48,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-28 09:41:48,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:48,602 INFO L225 Difference]: With dead ends: 769 [2021-10-28 09:41:48,602 INFO L226 Difference]: Without dead ends: 422 [2021-10-28 09:41:48,607 INFO L786 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 [2021-10-28 09:41:48,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-10-28 09:41:48,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2021-10-28 09:41:48,705 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) [2021-10-28 09:41:48,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2021-10-28 09:41:48,720 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 54 [2021-10-28 09:41:48,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:48,722 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2021-10-28 09:41:48,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:48,724 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2021-10-28 09:41:48,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-10-28 09:41:48,731 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:48,731 INFO L513 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, 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] [2021-10-28 09:41:48,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:41:48,732 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:48,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:48,733 INFO L85 PathProgramCache]: Analyzing trace with hash 808427271, now seen corresponding path program 1 times [2021-10-28 09:41:48,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:48,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397359750] [2021-10-28 09:41:48,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:48,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:48,972 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:48,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:48,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397359750] [2021-10-28 09:41:48,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397359750] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:48,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:48,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:41:48,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196874534] [2021-10-28 09:41:48,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:48,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:48,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:48,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:48,979 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:50,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:50,030 INFO L93 Difference]: Finished difference Result 1194 states and 1821 transitions. [2021-10-28 09:41:50,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:50,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-10-28 09:41:50,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:50,038 INFO L225 Difference]: With dead ends: 1194 [2021-10-28 09:41:50,039 INFO L226 Difference]: Without dead ends: 784 [2021-10-28 09:41:50,042 INFO L786 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 [2021-10-28 09:41:50,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2021-10-28 09:41:50,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2021-10-28 09:41:50,086 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) [2021-10-28 09:41:50,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1076 transitions. [2021-10-28 09:41:50,098 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1076 transitions. Word has length 120 [2021-10-28 09:41:50,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:50,099 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1076 transitions. [2021-10-28 09:41:50,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:50,100 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1076 transitions. [2021-10-28 09:41:50,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-10-28 09:41:50,103 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:50,104 INFO L513 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, 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] [2021-10-28 09:41:50,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:41:50,104 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:50,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:50,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1746590275, now seen corresponding path program 1 times [2021-10-28 09:41:50,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:50,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005615959] [2021-10-28 09:41:50,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:50,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:50,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:50,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005615959] [2021-10-28 09:41:50,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005615959] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:50,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:50,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:41:50,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806576365] [2021-10-28 09:41:50,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:50,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:50,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:50,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:50,376 INFO L87 Difference]: Start difference. First operand 784 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:51,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:51,302 INFO L93 Difference]: Finished difference Result 1936 states and 2599 transitions. [2021-10-28 09:41:51,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:51,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2021-10-28 09:41:51,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:51,311 INFO L225 Difference]: With dead ends: 1936 [2021-10-28 09:41:51,311 INFO L226 Difference]: Without dead ends: 1154 [2021-10-28 09:41:51,313 INFO L786 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 [2021-10-28 09:41:51,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2021-10-28 09:41:51,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1153. [2021-10-28 09:41:51,342 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) [2021-10-28 09:41:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1463 transitions. [2021-10-28 09:41:51,347 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1463 transitions. Word has length 124 [2021-10-28 09:41:51,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:51,348 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 1463 transitions. [2021-10-28 09:41:51,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:51,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1463 transitions. [2021-10-28 09:41:51,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-10-28 09:41:51,352 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:51,352 INFO L513 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, 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] [2021-10-28 09:41:51,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:41:51,353 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:51,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:51,354 INFO L85 PathProgramCache]: Analyzing trace with hash -948152282, now seen corresponding path program 1 times [2021-10-28 09:41:51,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:51,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319578320] [2021-10-28 09:41:51,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:51,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:51,500 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-28 09:41:51,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:51,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319578320] [2021-10-28 09:41:51,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319578320] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:51,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:51,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:41:51,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634417458] [2021-10-28 09:41:51,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:51,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:51,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:51,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:51,506 INFO L87 Difference]: Start difference. First operand 1153 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:52,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:52,381 INFO L93 Difference]: Finished difference Result 2494 states and 3189 transitions. [2021-10-28 09:41:52,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:52,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2021-10-28 09:41:52,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:52,395 INFO L225 Difference]: With dead ends: 2494 [2021-10-28 09:41:52,395 INFO L226 Difference]: Without dead ends: 1527 [2021-10-28 09:41:52,400 INFO L786 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 [2021-10-28 09:41:52,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2021-10-28 09:41:52,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2021-10-28 09:41:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1525 states have (on average 1.2557377049180327) internal successors, (1915), 1525 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:52,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1915 transitions. [2021-10-28 09:41:52,463 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1915 transitions. Word has length 166 [2021-10-28 09:41:52,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:52,464 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 1915 transitions. [2021-10-28 09:41:52,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:52,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1915 transitions. [2021-10-28 09:41:52,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-10-28 09:41:52,467 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:52,468 INFO L513 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:52,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:41:52,468 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:52,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:52,469 INFO L85 PathProgramCache]: Analyzing trace with hash -728761857, now seen corresponding path program 1 times [2021-10-28 09:41:52,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:52,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335118443] [2021-10-28 09:41:52,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:52,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:52,598 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:52,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:52,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335118443] [2021-10-28 09:41:52,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335118443] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:52,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:52,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:52,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799755294] [2021-10-28 09:41:52,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:52,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:52,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:52,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:52,602 INFO L87 Difference]: Start difference. First operand 1526 states and 1915 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:53,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:53,543 INFO L93 Difference]: Finished difference Result 2864 states and 3636 transitions. [2021-10-28 09:41:53,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:53,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2021-10-28 09:41:53,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:53,554 INFO L225 Difference]: With dead ends: 2864 [2021-10-28 09:41:53,555 INFO L226 Difference]: Without dead ends: 1524 [2021-10-28 09:41:53,557 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:53,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2021-10-28 09:41:53,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1524. [2021-10-28 09:41:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 1523 states have (on average 1.2107682206172028) internal successors, (1844), 1523 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:53,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 1844 transitions. [2021-10-28 09:41:53,601 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 1844 transitions. Word has length 181 [2021-10-28 09:41:53,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:53,602 INFO L470 AbstractCegarLoop]: Abstraction has 1524 states and 1844 transitions. [2021-10-28 09:41:53,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:53,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 1844 transitions. [2021-10-28 09:41:53,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-10-28 09:41:53,608 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:53,608 INFO L513 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:53,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:41:53,609 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:53,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:53,610 INFO L85 PathProgramCache]: Analyzing trace with hash -845047207, now seen corresponding path program 1 times [2021-10-28 09:41:53,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:53,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397943978] [2021-10-28 09:41:53,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:53,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:53,760 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-10-28 09:41:53,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:53,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397943978] [2021-10-28 09:41:53,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397943978] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:53,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:53,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:53,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101967867] [2021-10-28 09:41:53,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:53,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:53,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:53,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:53,764 INFO L87 Difference]: Start difference. First operand 1524 states and 1844 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:54,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:54,900 INFO L93 Difference]: Finished difference Result 3603 states and 4427 transitions. [2021-10-28 09:41:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:54,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 236 [2021-10-28 09:41:54,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:54,916 INFO L225 Difference]: With dead ends: 3603 [2021-10-28 09:41:54,917 INFO L226 Difference]: Without dead ends: 2265 [2021-10-28 09:41:54,920 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:54,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2021-10-28 09:41:54,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2076. [2021-10-28 09:41:54,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2076 states, 2075 states have (on average 1.192289156626506) internal successors, (2474), 2075 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:55,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2474 transitions. [2021-10-28 09:41:55,023 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2474 transitions. Word has length 236 [2021-10-28 09:41:55,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:55,024 INFO L470 AbstractCegarLoop]: Abstraction has 2076 states and 2474 transitions. [2021-10-28 09:41:55,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:55,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2474 transitions. [2021-10-28 09:41:55,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-10-28 09:41:55,030 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:55,031 INFO L513 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, 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] [2021-10-28 09:41:55,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:41:55,031 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:55,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:55,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1327280490, now seen corresponding path program 1 times [2021-10-28 09:41:55,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:55,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393360075] [2021-10-28 09:41:55,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:55,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:55,190 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 09:41:55,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:55,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393360075] [2021-10-28 09:41:55,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393360075] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:55,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:55,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:55,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289813965] [2021-10-28 09:41:55,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:55,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:55,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:55,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:55,194 INFO L87 Difference]: Start difference. First operand 2076 states and 2474 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:56,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:56,414 INFO L93 Difference]: Finished difference Result 4890 states and 5877 transitions. [2021-10-28 09:41:56,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:56,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 242 [2021-10-28 09:41:56,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:56,433 INFO L225 Difference]: With dead ends: 4890 [2021-10-28 09:41:56,433 INFO L226 Difference]: Without dead ends: 2816 [2021-10-28 09:41:56,436 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:56,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2021-10-28 09:41:56,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 2811. [2021-10-28 09:41:56,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 2810 states have (on average 1.1736654804270463) internal successors, (3298), 2810 states have internal predecessors, (3298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:56,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 3298 transitions. [2021-10-28 09:41:56,532 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 3298 transitions. Word has length 242 [2021-10-28 09:41:56,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:56,533 INFO L470 AbstractCegarLoop]: Abstraction has 2811 states and 3298 transitions. [2021-10-28 09:41:56,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:56,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 3298 transitions. [2021-10-28 09:41:56,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-10-28 09:41:56,542 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:56,543 INFO L513 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:56,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:41:56,544 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:56,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:56,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1752037152, now seen corresponding path program 1 times [2021-10-28 09:41:56,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:56,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770377879] [2021-10-28 09:41:56,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:56,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:56,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:56,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770377879] [2021-10-28 09:41:56,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770377879] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:56,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:56,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:56,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395373809] [2021-10-28 09:41:56,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:56,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:56,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:56,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:56,771 INFO L87 Difference]: Start difference. First operand 2811 states and 3298 transitions. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:58,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:58,586 INFO L93 Difference]: Finished difference Result 8956 states and 10588 transitions. [2021-10-28 09:41:58,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:58,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 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 281 [2021-10-28 09:41:58,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:58,626 INFO L225 Difference]: With dead ends: 8956 [2021-10-28 09:41:58,626 INFO L226 Difference]: Without dead ends: 6147 [2021-10-28 09:41:58,630 INFO L786 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 [2021-10-28 09:41:58,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6147 states. [2021-10-28 09:41:58,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6147 to 5961. [2021-10-28 09:41:58,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5961 states, 5960 states have (on average 1.1758389261744966) internal successors, (7008), 5960 states have internal predecessors, (7008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:58,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5961 states to 5961 states and 7008 transitions. [2021-10-28 09:41:58,796 INFO L78 Accepts]: Start accepts. Automaton has 5961 states and 7008 transitions. Word has length 281 [2021-10-28 09:41:58,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:58,797 INFO L470 AbstractCegarLoop]: Abstraction has 5961 states and 7008 transitions. [2021-10-28 09:41:58,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5961 states and 7008 transitions. [2021-10-28 09:41:58,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-10-28 09:41:58,809 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:58,810 INFO L513 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, 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, 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] [2021-10-28 09:41:58,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:41:58,810 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:58,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1184279150, now seen corresponding path program 1 times [2021-10-28 09:41:58,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:58,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234264914] [2021-10-28 09:41:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:58,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:59,004 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2021-10-28 09:41:59,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:59,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234264914] [2021-10-28 09:41:59,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234264914] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:59,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:59,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:59,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81690971] [2021-10-28 09:41:59,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:59,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:59,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:59,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:59,009 INFO L87 Difference]: Start difference. First operand 5961 states and 7008 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:59,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:59,945 INFO L93 Difference]: Finished difference Result 12099 states and 14259 transitions. [2021-10-28 09:41:59,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:59,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 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 319 [2021-10-28 09:41:59,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:59,994 INFO L225 Difference]: With dead ends: 12099 [2021-10-28 09:41:59,995 INFO L226 Difference]: Without dead ends: 7248 [2021-10-28 09:42:00,006 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:00,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7248 states. [2021-10-28 09:42:00,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7248 to 4664. [2021-10-28 09:42:00,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4664 states, 4663 states have (on average 1.1799270855672315) internal successors, (5502), 4663 states have internal predecessors, (5502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:00,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4664 states to 4664 states and 5502 transitions. [2021-10-28 09:42:00,150 INFO L78 Accepts]: Start accepts. Automaton has 4664 states and 5502 transitions. Word has length 319 [2021-10-28 09:42:00,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:00,151 INFO L470 AbstractCegarLoop]: Abstraction has 4664 states and 5502 transitions. [2021-10-28 09:42:00,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:00,152 INFO L276 IsEmpty]: Start isEmpty. Operand 4664 states and 5502 transitions. [2021-10-28 09:42:00,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-10-28 09:42:00,162 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:00,163 INFO L513 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:00,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:42:00,164 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:00,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:00,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1130496183, now seen corresponding path program 1 times [2021-10-28 09:42:00,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:00,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607667940] [2021-10-28 09:42:00,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:00,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:00,491 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 171 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:42:00,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:00,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607667940] [2021-10-28 09:42:00,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607667940] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:42:00,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869443004] [2021-10-28 09:42:00,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:00,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:42:00,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:42:00,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:42:00,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:42:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:00,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:42:00,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:42:04,296 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 171 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:42:04,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869443004] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:42:04,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:42:04,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-10-28 09:42:04,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294505538] [2021-10-28 09:42:04,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:42:04,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:04,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:42:04,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:42:04,307 INFO L87 Difference]: Start difference. First operand 4664 states and 5502 transitions. Second operand has 7 states, 7 states have (on average 72.85714285714286) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:07,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:07,262 INFO L93 Difference]: Finished difference Result 11832 states and 13937 transitions. [2021-10-28 09:42:07,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:42:07,263 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 72.85714285714286) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 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 328 [2021-10-28 09:42:07,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:07,305 INFO L225 Difference]: With dead ends: 11832 [2021-10-28 09:42:07,305 INFO L226 Difference]: Without dead ends: 7538 [2021-10-28 09:42:07,312 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:42:07,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7538 states. [2021-10-28 09:42:07,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7538 to 4477. [2021-10-28 09:42:07,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 4476 states have (on average 1.1735924932975872) internal successors, (5253), 4476 states have internal predecessors, (5253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:07,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 5253 transitions. [2021-10-28 09:42:07,453 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 5253 transitions. Word has length 328 [2021-10-28 09:42:07,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:07,454 INFO L470 AbstractCegarLoop]: Abstraction has 4477 states and 5253 transitions. [2021-10-28 09:42:07,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.85714285714286) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:07,455 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 5253 transitions. [2021-10-28 09:42:07,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-10-28 09:42:07,467 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:07,467 INFO L513 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, 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, 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] [2021-10-28 09:42:07,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:07,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-28 09:42:07,695 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:07,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:07,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1345956964, now seen corresponding path program 1 times [2021-10-28 09:42:07,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:07,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296413154] [2021-10-28 09:42:07,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:07,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:08,085 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 188 proven. 148 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-28 09:42:08,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:08,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296413154] [2021-10-28 09:42:08,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296413154] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:42:08,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867105674] [2021-10-28 09:42:08,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:08,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:42:08,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:42:08,091 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:42:08,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 09:42:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:08,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:42:08,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:42:09,590 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-28 09:42:09,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867105674] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:09,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:42:09,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-10-28 09:42:09,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154665637] [2021-10-28 09:42:09,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:42:09,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:09,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:42:09,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:42:09,603 INFO L87 Difference]: Start difference. First operand 4477 states and 5253 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:10,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:10,502 INFO L93 Difference]: Finished difference Result 8778 states and 10330 transitions. [2021-10-28 09:42:10,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:42:10,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 348 [2021-10-28 09:42:10,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:10,514 INFO L225 Difference]: With dead ends: 8778 [2021-10-28 09:42:10,558 INFO L226 Difference]: Without dead ends: 4671 [2021-10-28 09:42:10,563 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:42:10,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4671 states. [2021-10-28 09:42:10,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4671 to 4477. [2021-10-28 09:42:10,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 4476 states have (on average 1.1427613941018766) internal successors, (5115), 4476 states have internal predecessors, (5115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 5115 transitions. [2021-10-28 09:42:10,682 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 5115 transitions. Word has length 348 [2021-10-28 09:42:10,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:10,683 INFO L470 AbstractCegarLoop]: Abstraction has 4477 states and 5115 transitions. [2021-10-28 09:42:10,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:10,684 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 5115 transitions. [2021-10-28 09:42:10,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-10-28 09:42:10,702 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:10,703 INFO L513 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, 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, 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] [2021-10-28 09:42:10,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:10,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:42:10,923 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:10,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:10,924 INFO L85 PathProgramCache]: Analyzing trace with hash -87231958, now seen corresponding path program 1 times [2021-10-28 09:42:10,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:10,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226008475] [2021-10-28 09:42:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:10,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:11,169 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:42:11,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:11,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226008475] [2021-10-28 09:42:11,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226008475] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:11,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:11,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:42:11,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388334537] [2021-10-28 09:42:11,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:42:11,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:11,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:42:11,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:11,173 INFO L87 Difference]: Start difference. First operand 4477 states and 5115 transitions. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:12,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:12,171 INFO L93 Difference]: Finished difference Result 11713 states and 13473 transitions. [2021-10-28 09:42:12,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:42:12,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2021-10-28 09:42:12,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:12,187 INFO L225 Difference]: With dead ends: 11713 [2021-10-28 09:42:12,187 INFO L226 Difference]: Without dead ends: 7606 [2021-10-28 09:42:12,193 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:12,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7606 states. [2021-10-28 09:42:12,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7606 to 7601. [2021-10-28 09:42:12,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7601 states, 7600 states have (on average 1.137763157894737) internal successors, (8647), 7600 states have internal predecessors, (8647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:12,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7601 states to 7601 states and 8647 transitions. [2021-10-28 09:42:12,364 INFO L78 Accepts]: Start accepts. Automaton has 7601 states and 8647 transitions. Word has length 356 [2021-10-28 09:42:12,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:12,365 INFO L470 AbstractCegarLoop]: Abstraction has 7601 states and 8647 transitions. [2021-10-28 09:42:12,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:12,365 INFO L276 IsEmpty]: Start isEmpty. Operand 7601 states and 8647 transitions. [2021-10-28 09:42:12,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-10-28 09:42:12,379 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:12,380 INFO L513 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, 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, 2, 2, 2, 2, 2, 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] [2021-10-28 09:42:12,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 09:42:12,380 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:12,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:12,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2000820814, now seen corresponding path program 1 times [2021-10-28 09:42:12,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:12,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108715781] [2021-10-28 09:42:12,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:12,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:12,662 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-10-28 09:42:12,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:12,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108715781] [2021-10-28 09:42:12,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108715781] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:42:12,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766285576] [2021-10-28 09:42:12,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:12,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:42:12,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:42:12,667 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:42:12,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 09:42:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:13,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:42:13,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:42:15,121 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-10-28 09:42:15,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766285576] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:42:15,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:42:15,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-28 09:42:15,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660018406] [2021-10-28 09:42:15,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:42:15,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:15,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:42:15,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:42:15,128 INFO L87 Difference]: Start difference. First operand 7601 states and 8647 transitions. Second operand has 4 states, 4 states have (on average 54.5) 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) [2021-10-28 09:42:16,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:16,615 INFO L93 Difference]: Finished difference Result 12210 states and 13855 transitions. [2021-10-28 09:42:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:42:16,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) 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 359 [2021-10-28 09:42:16,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:16,643 INFO L225 Difference]: With dead ends: 12210 [2021-10-28 09:42:16,643 INFO L226 Difference]: Without dead ends: 12208 [2021-10-28 09:42:16,646 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 358 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:42:16,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12208 states. [2021-10-28 09:42:16,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12208 to 7417. [2021-10-28 09:42:16,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7417 states, 7416 states have (on average 1.1378101402373246) internal successors, (8438), 7416 states have internal predecessors, (8438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:16,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7417 states to 7417 states and 8438 transitions. [2021-10-28 09:42:16,841 INFO L78 Accepts]: Start accepts. Automaton has 7417 states and 8438 transitions. Word has length 359 [2021-10-28 09:42:16,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:16,842 INFO L470 AbstractCegarLoop]: Abstraction has 7417 states and 8438 transitions. [2021-10-28 09:42:16,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) 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) [2021-10-28 09:42:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 7417 states and 8438 transitions. [2021-10-28 09:42:16,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-10-28 09:42:16,859 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:16,859 INFO L513 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:16,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:17,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-28 09:42:17,087 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:17,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:17,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1108276798, now seen corresponding path program 1 times [2021-10-28 09:42:17,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:17,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175408330] [2021-10-28 09:42:17,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:17,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:17,395 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 486 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2021-10-28 09:42:17,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:17,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175408330] [2021-10-28 09:42:17,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175408330] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:17,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:17,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:42:17,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594347490] [2021-10-28 09:42:17,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:42:17,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:17,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:42:17,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:17,401 INFO L87 Difference]: Start difference. First operand 7417 states and 8438 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) [2021-10-28 09:42:18,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:18,587 INFO L93 Difference]: Finished difference Result 16855 states and 19252 transitions. [2021-10-28 09:42:18,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:42:18,588 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 446 [2021-10-28 09:42:18,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:18,611 INFO L225 Difference]: With dead ends: 16855 [2021-10-28 09:42:18,611 INFO L226 Difference]: Without dead ends: 9808 [2021-10-28 09:42:18,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:18,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9808 states. [2021-10-28 09:42:18,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9808 to 7960. [2021-10-28 09:42:18,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7960 states, 7959 states have (on average 1.1318004774469155) internal successors, (9008), 7959 states have internal predecessors, (9008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:18,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7960 states to 7960 states and 9008 transitions. [2021-10-28 09:42:18,795 INFO L78 Accepts]: Start accepts. Automaton has 7960 states and 9008 transitions. Word has length 446 [2021-10-28 09:42:18,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:18,796 INFO L470 AbstractCegarLoop]: Abstraction has 7960 states and 9008 transitions. [2021-10-28 09:42:18,796 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) [2021-10-28 09:42:18,797 INFO L276 IsEmpty]: Start isEmpty. Operand 7960 states and 9008 transitions. [2021-10-28 09:42:18,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-10-28 09:42:18,816 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:18,817 INFO L513 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:18,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 09:42:18,817 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:18,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:18,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1480841082, now seen corresponding path program 1 times [2021-10-28 09:42:18,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:18,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656639688] [2021-10-28 09:42:18,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:18,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:19,191 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2021-10-28 09:42:19,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:19,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656639688] [2021-10-28 09:42:19,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656639688] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:19,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:19,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:42:19,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978043664] [2021-10-28 09:42:19,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:42:19,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:19,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:42:19,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:19,194 INFO L87 Difference]: Start difference. First operand 7960 states and 9008 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:20,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:20,202 INFO L93 Difference]: Finished difference Result 16105 states and 18268 transitions. [2021-10-28 09:42:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:42:20,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 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 480 [2021-10-28 09:42:20,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:20,224 INFO L225 Difference]: With dead ends: 16105 [2021-10-28 09:42:20,224 INFO L226 Difference]: Without dead ends: 8331 [2021-10-28 09:42:20,235 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:20,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8331 states. [2021-10-28 09:42:20,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8331 to 8144. [2021-10-28 09:42:20,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8144 states, 8143 states have (on average 1.1219452290310696) internal successors, (9136), 8143 states have internal predecessors, (9136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:20,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8144 states to 8144 states and 9136 transitions. [2021-10-28 09:42:20,445 INFO L78 Accepts]: Start accepts. Automaton has 8144 states and 9136 transitions. Word has length 480 [2021-10-28 09:42:20,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:20,446 INFO L470 AbstractCegarLoop]: Abstraction has 8144 states and 9136 transitions. [2021-10-28 09:42:20,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:20,447 INFO L276 IsEmpty]: Start isEmpty. Operand 8144 states and 9136 transitions. [2021-10-28 09:42:20,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-10-28 09:42:20,467 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:20,468 INFO L513 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:20,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 09:42:20,469 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:20,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:20,469 INFO L85 PathProgramCache]: Analyzing trace with hash -380186503, now seen corresponding path program 1 times [2021-10-28 09:42:20,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:20,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879489662] [2021-10-28 09:42:20,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:20,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2021-10-28 09:42:20,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:20,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879489662] [2021-10-28 09:42:20,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879489662] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:20,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:20,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:42:20,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531029623] [2021-10-28 09:42:20,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:42:20,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:20,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:42:20,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:42:20,738 INFO L87 Difference]: Start difference. First operand 8144 states and 9136 transitions. Second operand has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:22,149 INFO L93 Difference]: Finished difference Result 17573 states and 19755 transitions. [2021-10-28 09:42:22,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:42:22,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 0 states have call successors, (0), 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 481 [2021-10-28 09:42:22,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:22,171 INFO L225 Difference]: With dead ends: 17573 [2021-10-28 09:42:22,171 INFO L226 Difference]: Without dead ends: 9799 [2021-10-28 09:42:22,181 INFO L786 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 [2021-10-28 09:42:22,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9799 states. [2021-10-28 09:42:22,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9799 to 9063. [2021-10-28 09:42:22,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9063 states, 9062 states have (on average 1.1088060030898257) internal successors, (10048), 9062 states have internal predecessors, (10048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:22,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9063 states to 9063 states and 10048 transitions. [2021-10-28 09:42:22,347 INFO L78 Accepts]: Start accepts. Automaton has 9063 states and 10048 transitions. Word has length 481 [2021-10-28 09:42:22,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:22,348 INFO L470 AbstractCegarLoop]: Abstraction has 9063 states and 10048 transitions. [2021-10-28 09:42:22,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:22,349 INFO L276 IsEmpty]: Start isEmpty. Operand 9063 states and 10048 transitions. [2021-10-28 09:42:22,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2021-10-28 09:42:22,370 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:22,371 INFO L513 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:22,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 09:42:22,372 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:22,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:22,373 INFO L85 PathProgramCache]: Analyzing trace with hash -354533851, now seen corresponding path program 1 times [2021-10-28 09:42:22,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:22,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258902711] [2021-10-28 09:42:22,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:22,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-28 09:42:22,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:22,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258902711] [2021-10-28 09:42:22,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258902711] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:22,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:22,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:42:22,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672815614] [2021-10-28 09:42:22,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:42:22,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:22,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:42:22,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:42:22,809 INFO L87 Difference]: Start difference. First operand 9063 states and 10048 transitions. Second operand has 5 states, 5 states have (on average 73.4) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:24,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:24,291 INFO L93 Difference]: Finished difference Result 18260 states and 20262 transitions. [2021-10-28 09:42:24,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:42:24,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 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 490 [2021-10-28 09:42:24,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:24,313 INFO L225 Difference]: With dead ends: 18260 [2021-10-28 09:42:24,313 INFO L226 Difference]: Without dead ends: 9567 [2021-10-28 09:42:24,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:42:24,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9567 states. [2021-10-28 09:42:24,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9567 to 9242. [2021-10-28 09:42:24,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9242 states, 9241 states have (on average 1.1086462504058003) internal successors, (10245), 9241 states have internal predecessors, (10245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:24,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9242 states to 9242 states and 10245 transitions. [2021-10-28 09:42:24,549 INFO L78 Accepts]: Start accepts. Automaton has 9242 states and 10245 transitions. Word has length 490 [2021-10-28 09:42:24,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:24,551 INFO L470 AbstractCegarLoop]: Abstraction has 9242 states and 10245 transitions. [2021-10-28 09:42:24,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:24,551 INFO L276 IsEmpty]: Start isEmpty. Operand 9242 states and 10245 transitions. [2021-10-28 09:42:24,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2021-10-28 09:42:24,583 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:24,583 INFO L513 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, 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, 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] [2021-10-28 09:42:24,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 09:42:24,584 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:24,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:24,585 INFO L85 PathProgramCache]: Analyzing trace with hash -145989393, now seen corresponding path program 1 times [2021-10-28 09:42:24,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:24,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184839110] [2021-10-28 09:42:24,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:24,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:24,903 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 467 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-10-28 09:42:24,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:24,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184839110] [2021-10-28 09:42:24,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184839110] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:24,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:24,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:42:24,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150115208] [2021-10-28 09:42:24,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:42:24,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:24,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:42:24,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:24,907 INFO L87 Difference]: Start difference. First operand 9242 states and 10245 transitions. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:25,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:25,848 INFO L93 Difference]: Finished difference Result 19405 states and 21561 transitions. [2021-10-28 09:42:25,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:42:25,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 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 544 [2021-10-28 09:42:25,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:25,860 INFO L225 Difference]: With dead ends: 19405 [2021-10-28 09:42:25,860 INFO L226 Difference]: Without dead ends: 10533 [2021-10-28 09:42:25,866 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:25,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10533 states. [2021-10-28 09:42:26,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10533 to 9058. [2021-10-28 09:42:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9058 states, 9057 states have (on average 1.1068786573920724) internal successors, (10025), 9057 states have internal predecessors, (10025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:26,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9058 states to 9058 states and 10025 transitions. [2021-10-28 09:42:26,031 INFO L78 Accepts]: Start accepts. Automaton has 9058 states and 10025 transitions. Word has length 544 [2021-10-28 09:42:26,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:26,033 INFO L470 AbstractCegarLoop]: Abstraction has 9058 states and 10025 transitions. [2021-10-28 09:42:26,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:26,033 INFO L276 IsEmpty]: Start isEmpty. Operand 9058 states and 10025 transitions. [2021-10-28 09:42:26,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2021-10-28 09:42:26,065 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:26,067 INFO L513 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, 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, 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, 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] [2021-10-28 09:42:26,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 09:42:26,068 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:26,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:26,069 INFO L85 PathProgramCache]: Analyzing trace with hash 764077729, now seen corresponding path program 1 times [2021-10-28 09:42:26,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:26,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137823208] [2021-10-28 09:42:26,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:26,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 945 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-10-28 09:42:26,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:26,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137823208] [2021-10-28 09:42:26,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137823208] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:26,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:26,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:42:26,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230440150] [2021-10-28 09:42:26,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:42:26,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:26,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:42:26,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:42:26,399 INFO L87 Difference]: Start difference. First operand 9058 states and 10025 transitions. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:28,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:28,023 INFO L93 Difference]: Finished difference Result 19595 states and 21704 transitions. [2021-10-28 09:42:28,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:42:28,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 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 654 [2021-10-28 09:42:28,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:28,034 INFO L225 Difference]: With dead ends: 19595 [2021-10-28 09:42:28,034 INFO L226 Difference]: Without dead ends: 10721 [2021-10-28 09:42:28,039 INFO L786 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 [2021-10-28 09:42:28,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2021-10-28 09:42:28,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 7952. [2021-10-28 09:42:28,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7952 states, 7951 states have (on average 1.107282102880141) internal successors, (8804), 7951 states have internal predecessors, (8804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:28,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7952 states to 7952 states and 8804 transitions. [2021-10-28 09:42:28,191 INFO L78 Accepts]: Start accepts. Automaton has 7952 states and 8804 transitions. Word has length 654 [2021-10-28 09:42:28,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:28,193 INFO L470 AbstractCegarLoop]: Abstraction has 7952 states and 8804 transitions. [2021-10-28 09:42:28,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:28,193 INFO L276 IsEmpty]: Start isEmpty. Operand 7952 states and 8804 transitions. [2021-10-28 09:42:28,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 747 [2021-10-28 09:42:28,210 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:28,211 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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] [2021-10-28 09:42:28,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 09:42:28,212 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:28,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:28,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1565323350, now seen corresponding path program 1 times [2021-10-28 09:42:28,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:28,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732428975] [2021-10-28 09:42:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:28,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:28,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1686 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 1375 trivial. 0 not checked. [2021-10-28 09:42:28,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:28,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732428975] [2021-10-28 09:42:28,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732428975] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:28,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:28,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:42:28,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666110870] [2021-10-28 09:42:28,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:42:28,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:28,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:42:28,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:28,771 INFO L87 Difference]: Start difference. First operand 7952 states and 8804 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:29,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:29,652 INFO L93 Difference]: Finished difference Result 17194 states and 19065 transitions. [2021-10-28 09:42:29,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:42:29,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 746 [2021-10-28 09:42:29,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:29,666 INFO L225 Difference]: With dead ends: 17194 [2021-10-28 09:42:29,667 INFO L226 Difference]: Without dead ends: 9612 [2021-10-28 09:42:29,671 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:29,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9612 states. [2021-10-28 09:42:29,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9612 to 8322. [2021-10-28 09:42:29,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8322 states, 8321 states have (on average 1.101550294435765) internal successors, (9166), 8321 states have internal predecessors, (9166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:29,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8322 states to 8322 states and 9166 transitions. [2021-10-28 09:42:29,802 INFO L78 Accepts]: Start accepts. Automaton has 8322 states and 9166 transitions. Word has length 746 [2021-10-28 09:42:29,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:29,804 INFO L470 AbstractCegarLoop]: Abstraction has 8322 states and 9166 transitions. [2021-10-28 09:42:29,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:29,805 INFO L276 IsEmpty]: Start isEmpty. Operand 8322 states and 9166 transitions. [2021-10-28 09:42:29,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2021-10-28 09:42:29,821 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:29,822 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:29,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-28 09:42:29,823 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:29,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:29,824 INFO L85 PathProgramCache]: Analyzing trace with hash -534851769, now seen corresponding path program 1 times [2021-10-28 09:42:29,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:29,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127643324] [2021-10-28 09:42:29,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:29,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:30,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2242 backedges. 1055 proven. 0 refuted. 0 times theorem prover too weak. 1187 trivial. 0 not checked. [2021-10-28 09:42:30,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:30,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127643324] [2021-10-28 09:42:30,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127643324] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:30,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:30,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:42:30,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585437617] [2021-10-28 09:42:30,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:42:30,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:30,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:42:30,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:42:30,212 INFO L87 Difference]: Start difference. First operand 8322 states and 9166 transitions. Second operand has 4 states, 4 states have (on average 86.0) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:31,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:31,835 INFO L93 Difference]: Finished difference Result 21989 states and 24306 transitions. [2021-10-28 09:42:31,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:42:31,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 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 774 [2021-10-28 09:42:31,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:31,850 INFO L225 Difference]: With dead ends: 21989 [2021-10-28 09:42:31,850 INFO L226 Difference]: Without dead ends: 14037 [2021-10-28 09:42:31,856 INFO L786 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 [2021-10-28 09:42:31,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14037 states. [2021-10-28 09:42:32,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14037 to 13849. [2021-10-28 09:42:32,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13849 states, 13848 states have (on average 1.0920710571923744) internal successors, (15123), 13848 states have internal predecessors, (15123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:32,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13849 states to 13849 states and 15123 transitions. [2021-10-28 09:42:32,047 INFO L78 Accepts]: Start accepts. Automaton has 13849 states and 15123 transitions. Word has length 774 [2021-10-28 09:42:32,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:32,048 INFO L470 AbstractCegarLoop]: Abstraction has 13849 states and 15123 transitions. [2021-10-28 09:42:32,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:32,049 INFO L276 IsEmpty]: Start isEmpty. Operand 13849 states and 15123 transitions. [2021-10-28 09:42:32,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2021-10-28 09:42:32,069 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:32,070 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 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] [2021-10-28 09:42:32,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-28 09:42:32,071 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:32,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:32,071 INFO L85 PathProgramCache]: Analyzing trace with hash 542249316, now seen corresponding path program 1 times [2021-10-28 09:42:32,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:32,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425044755] [2021-10-28 09:42:32,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:32,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 1107 proven. 336 refuted. 0 times theorem prover too weak. 919 trivial. 0 not checked. [2021-10-28 09:42:32,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:32,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425044755] [2021-10-28 09:42:32,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425044755] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:42:32,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120610074] [2021-10-28 09:42:32,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:32,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:42:32,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:42:32,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:42:32,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 09:42:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:33,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:42:33,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:42:35,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 1429 proven. 380 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-10-28 09:42:35,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120610074] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:42:35,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:42:35,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-28 09:42:35,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702411136] [2021-10-28 09:42:35,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:42:35,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:35,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:42:35,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:42:35,910 INFO L87 Difference]: Start difference. First operand 13849 states and 15123 transitions. Second operand has 9 states, 9 states have (on average 82.33333333333333) internal successors, (741), 8 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:42,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:42,606 INFO L93 Difference]: Finished difference Result 37891 states and 41388 transitions. [2021-10-28 09:42:42,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 09:42:42,607 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 82.33333333333333) internal successors, (741), 8 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 788 [2021-10-28 09:42:42,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:42,641 INFO L225 Difference]: With dead ends: 37891 [2021-10-28 09:42:42,642 INFO L226 Difference]: Without dead ends: 22940 [2021-10-28 09:42:42,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 786 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:42:42,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22940 states. [2021-10-28 09:42:42,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22940 to 16851. [2021-10-28 09:42:42,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16851 states, 16850 states have (on average 1.084272997032641) internal successors, (18270), 16850 states have internal predecessors, (18270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16851 states to 16851 states and 18270 transitions. [2021-10-28 09:42:42,940 INFO L78 Accepts]: Start accepts. Automaton has 16851 states and 18270 transitions. Word has length 788 [2021-10-28 09:42:42,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:42,941 INFO L470 AbstractCegarLoop]: Abstraction has 16851 states and 18270 transitions. [2021-10-28 09:42:42,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 82.33333333333333) internal successors, (741), 8 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:42,942 INFO L276 IsEmpty]: Start isEmpty. Operand 16851 states and 18270 transitions. [2021-10-28 09:42:42,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 863 [2021-10-28 09:42:42,967 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:42,968 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1] [2021-10-28 09:42:43,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:43,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-28 09:42:43,195 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:43,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:43,195 INFO L85 PathProgramCache]: Analyzing trace with hash 357936340, now seen corresponding path program 1 times [2021-10-28 09:42:43,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:43,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24498838] [2021-10-28 09:42:43,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:43,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 1877 proven. 0 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2021-10-28 09:42:43,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:43,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24498838] [2021-10-28 09:42:43,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24498838] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:43,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:43,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:42:43,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379070744] [2021-10-28 09:42:43,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:42:43,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:43,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:42:43,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:43,742 INFO L87 Difference]: Start difference. First operand 16851 states and 18270 transitions. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:44,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:44,925 INFO L93 Difference]: Finished difference Result 34995 states and 37996 transitions. [2021-10-28 09:42:44,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:42:44,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 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 862 [2021-10-28 09:42:44,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:44,951 INFO L225 Difference]: With dead ends: 34995 [2021-10-28 09:42:44,951 INFO L226 Difference]: Without dead ends: 18514 [2021-10-28 09:42:44,962 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:44,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18514 states. [2021-10-28 09:42:45,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18514 to 17589. [2021-10-28 09:42:45,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17589 states, 17588 states have (on average 1.082726859222197) internal successors, (19043), 17588 states have internal predecessors, (19043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:45,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17589 states to 17589 states and 19043 transitions. [2021-10-28 09:42:45,219 INFO L78 Accepts]: Start accepts. Automaton has 17589 states and 19043 transitions. Word has length 862 [2021-10-28 09:42:45,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:45,220 INFO L470 AbstractCegarLoop]: Abstraction has 17589 states and 19043 transitions. [2021-10-28 09:42:45,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:45,221 INFO L276 IsEmpty]: Start isEmpty. Operand 17589 states and 19043 transitions. [2021-10-28 09:42:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2021-10-28 09:42:45,250 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:45,250 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 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] [2021-10-28 09:42:45,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-28 09:42:45,251 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:45,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:45,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1072427480, now seen corresponding path program 1 times [2021-10-28 09:42:45,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:45,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745873869] [2021-10-28 09:42:45,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:45,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2990 backedges. 1930 proven. 0 refuted. 0 times theorem prover too weak. 1060 trivial. 0 not checked. [2021-10-28 09:42:45,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:45,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745873869] [2021-10-28 09:42:45,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745873869] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:45,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:45,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:42:45,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381631713] [2021-10-28 09:42:45,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:42:45,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:45,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:42:45,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:45,773 INFO L87 Difference]: Start difference. First operand 17589 states and 19043 transitions. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:46,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:46,808 INFO L93 Difference]: Finished difference Result 40147 states and 43475 transitions. [2021-10-28 09:42:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:42:46,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 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 875 [2021-10-28 09:42:46,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:46,832 INFO L225 Difference]: With dead ends: 40147 [2021-10-28 09:42:46,832 INFO L226 Difference]: Without dead ends: 22928 [2021-10-28 09:42:46,842 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:46,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22928 states. [2021-10-28 09:42:47,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22928 to 17589. [2021-10-28 09:42:47,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17589 states, 17588 states have (on average 1.079713440982488) internal successors, (18990), 17588 states have internal predecessors, (18990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:47,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17589 states to 17589 states and 18990 transitions. [2021-10-28 09:42:47,104 INFO L78 Accepts]: Start accepts. Automaton has 17589 states and 18990 transitions. Word has length 875 [2021-10-28 09:42:47,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:47,105 INFO L470 AbstractCegarLoop]: Abstraction has 17589 states and 18990 transitions. [2021-10-28 09:42:47,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:47,105 INFO L276 IsEmpty]: Start isEmpty. Operand 17589 states and 18990 transitions. [2021-10-28 09:42:47,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 923 [2021-10-28 09:42:47,136 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:47,137 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:47,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-28 09:42:47,137 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:47,138 INFO L85 PathProgramCache]: Analyzing trace with hash -740291806, now seen corresponding path program 1 times [2021-10-28 09:42:47,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:47,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966637640] [2021-10-28 09:42:47,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:47,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2947 backedges. 1594 proven. 341 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-10-28 09:42:47,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:47,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966637640] [2021-10-28 09:42:47,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966637640] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:42:47,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216806707] [2021-10-28 09:42:47,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:47,777 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:42:47,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:42:47,782 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:42:47,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 09:42:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:48,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:42:48,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:42:51,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2947 backedges. 1700 proven. 0 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2021-10-28 09:42:51,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216806707] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:51,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:42:51,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-28 09:42:51,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271505776] [2021-10-28 09:42:51,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:42:51,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:51,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:42:51,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:42:51,552 INFO L87 Difference]: Start difference. First operand 17589 states and 18990 transitions. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:52,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:52,469 INFO L93 Difference]: Finished difference Result 34995 states and 37856 transitions. [2021-10-28 09:42:52,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:42:52,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 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 922 [2021-10-28 09:42:52,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:52,498 INFO L225 Difference]: With dead ends: 34995 [2021-10-28 09:42:52,498 INFO L226 Difference]: Without dead ends: 19432 [2021-10-28 09:42:52,510 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 927 GetRequests, 923 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:42:52,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19432 states. [2021-10-28 09:42:52,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19432 to 19429. [2021-10-28 09:42:52,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19429 states, 19428 states have (on average 1.0772596252830966) internal successors, (20929), 19428 states have internal predecessors, (20929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19429 states to 19429 states and 20929 transitions. [2021-10-28 09:42:52,844 INFO L78 Accepts]: Start accepts. Automaton has 19429 states and 20929 transitions. Word has length 922 [2021-10-28 09:42:52,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:52,845 INFO L470 AbstractCegarLoop]: Abstraction has 19429 states and 20929 transitions. [2021-10-28 09:42:52,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:52,846 INFO L276 IsEmpty]: Start isEmpty. Operand 19429 states and 20929 transitions. [2021-10-28 09:42:52,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 932 [2021-10-28 09:42:52,875 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:52,876 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:52,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:53,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:42:53,103 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:53,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:53,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1141570522, now seen corresponding path program 1 times [2021-10-28 09:42:53,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:53,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720502449] [2021-10-28 09:42:53,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:53,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3074 backedges. 2025 proven. 0 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2021-10-28 09:42:53,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:53,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720502449] [2021-10-28 09:42:53,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720502449] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:53,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:53,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:42:53,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294252339] [2021-10-28 09:42:53,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:42:53,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:53,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:42:53,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:53,546 INFO L87 Difference]: Start difference. First operand 19429 states and 20929 transitions. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:54,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:54,548 INFO L93 Difference]: Finished difference Result 37194 states and 40117 transitions. [2021-10-28 09:42:54,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:42:54,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 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 931 [2021-10-28 09:42:54,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:54,567 INFO L225 Difference]: With dead ends: 37194 [2021-10-28 09:42:54,567 INFO L226 Difference]: Without dead ends: 18135 [2021-10-28 09:42:54,575 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:42:54,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18135 states. [2021-10-28 09:42:54,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18135 to 17215. [2021-10-28 09:42:54,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17215 states, 17214 states have (on average 1.0725572208667364) internal successors, (18463), 17214 states have internal predecessors, (18463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:54,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17215 states to 17215 states and 18463 transitions. [2021-10-28 09:42:54,839 INFO L78 Accepts]: Start accepts. Automaton has 17215 states and 18463 transitions. Word has length 931 [2021-10-28 09:42:54,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:54,840 INFO L470 AbstractCegarLoop]: Abstraction has 17215 states and 18463 transitions. [2021-10-28 09:42:54,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:54,840 INFO L276 IsEmpty]: Start isEmpty. Operand 17215 states and 18463 transitions. [2021-10-28 09:42:54,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2021-10-28 09:42:54,860 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:54,861 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:54,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-28 09:42:54,862 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:54,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:54,863 INFO L85 PathProgramCache]: Analyzing trace with hash 6747784, now seen corresponding path program 1 times [2021-10-28 09:42:54,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:54,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179949638] [2021-10-28 09:42:54,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:54,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:55,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 2365 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2021-10-28 09:42:55,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:55,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179949638] [2021-10-28 09:42:55,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179949638] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:55,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:55,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:42:55,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418717192] [2021-10-28 09:42:55,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:42:55,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:42:55,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:42:55,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:42:55,291 INFO L87 Difference]: Start difference. First operand 17215 states and 18463 transitions. Second operand has 4 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:57,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:57,197 INFO L93 Difference]: Finished difference Result 38304 states and 41151 transitions. [2021-10-28 09:42:57,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:42:57,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 0 states have call successors, (0), 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 950 [2021-10-28 09:42:57,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:57,219 INFO L225 Difference]: With dead ends: 38304 [2021-10-28 09:42:57,219 INFO L226 Difference]: Without dead ends: 23301 [2021-10-28 09:42:57,224 INFO L786 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 [2021-10-28 09:42:57,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23301 states. [2021-10-28 09:42:57,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23301 to 22009. [2021-10-28 09:42:57,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22009 states, 22008 states have (on average 1.0728371501272265) internal successors, (23611), 22008 states have internal predecessors, (23611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:57,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22009 states to 22009 states and 23611 transitions. [2021-10-28 09:42:57,538 INFO L78 Accepts]: Start accepts. Automaton has 22009 states and 23611 transitions. Word has length 950 [2021-10-28 09:42:57,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:57,539 INFO L470 AbstractCegarLoop]: Abstraction has 22009 states and 23611 transitions. [2021-10-28 09:42:57,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:42:57,539 INFO L276 IsEmpty]: Start isEmpty. Operand 22009 states and 23611 transitions. [2021-10-28 09:42:57,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1228 [2021-10-28 09:42:57,568 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:57,568 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-28 09:42:57,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-28 09:42:57,569 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:42:57,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:57,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1514174603, now seen corresponding path program 1 times [2021-10-28 09:42:57,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:42:57,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904224768] [2021-10-28 09:42:57,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:57,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:42:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:58,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5504 backedges. 2947 proven. 803 refuted. 0 times theorem prover too weak. 1754 trivial. 0 not checked. [2021-10-28 09:42:58,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:42:58,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904224768] [2021-10-28 09:42:58,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904224768] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:42:58,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513325706] [2021-10-28 09:42:58,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:58,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:42:58,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:42:58,344 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:42:58,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 09:42:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:59,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 1603 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:42:59,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:43:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 5504 backedges. 2329 proven. 0 refuted. 0 times theorem prover too weak. 3175 trivial. 0 not checked. [2021-10-28 09:43:02,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513325706] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:02,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:43:02,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-10-28 09:43:02,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47608945] [2021-10-28 09:43:02,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:43:02,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:02,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:43:02,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:43:02,546 INFO L87 Difference]: Start difference. First operand 22009 states and 23611 transitions. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:03,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:43:03,408 INFO L93 Difference]: Finished difference Result 42560 states and 45696 transitions. [2021-10-28 09:43:03,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:43:03,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 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 1227 [2021-10-28 09:43:03,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:43:03,438 INFO L225 Difference]: With dead ends: 42560 [2021-10-28 09:43:03,438 INFO L226 Difference]: Without dead ends: 22947 [2021-10-28 09:43:03,448 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1234 GetRequests, 1227 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:43:03,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22947 states. [2021-10-28 09:43:03,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22947 to 21463. [2021-10-28 09:43:03,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21463 states, 21462 states have (on average 1.0709160376479359) internal successors, (22984), 21462 states have internal predecessors, (22984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:03,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21463 states to 21463 states and 22984 transitions. [2021-10-28 09:43:03,918 INFO L78 Accepts]: Start accepts. Automaton has 21463 states and 22984 transitions. Word has length 1227 [2021-10-28 09:43:03,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:43:03,919 INFO L470 AbstractCegarLoop]: Abstraction has 21463 states and 22984 transitions. [2021-10-28 09:43:03,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:03,919 INFO L276 IsEmpty]: Start isEmpty. Operand 21463 states and 22984 transitions. [2021-10-28 09:43:03,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1529 [2021-10-28 09:43:03,970 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:43:03,972 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:43:04,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-28 09:43:04,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-28 09:43:04,183 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:43:04,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:04,184 INFO L85 PathProgramCache]: Analyzing trace with hash 184511054, now seen corresponding path program 1 times [2021-10-28 09:43:04,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:04,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115106336] [2021-10-28 09:43:04,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:04,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:04,980 INFO L134 CoverageAnalysis]: Checked inductivity of 8058 backedges. 4864 proven. 0 refuted. 0 times theorem prover too weak. 3194 trivial. 0 not checked. [2021-10-28 09:43:04,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:04,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115106336] [2021-10-28 09:43:04,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115106336] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:04,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:04,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:43:04,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960666767] [2021-10-28 09:43:04,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:43:04,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:04,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:43:04,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:43:04,985 INFO L87 Difference]: Start difference. First operand 21463 states and 22984 transitions. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:05,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:43:05,741 INFO L93 Difference]: Finished difference Result 34013 states and 36379 transitions. [2021-10-28 09:43:05,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:43:05,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 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 1528 [2021-10-28 09:43:05,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:43:05,743 INFO L225 Difference]: With dead ends: 34013 [2021-10-28 09:43:05,743 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:43:05,752 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:43:05,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:43:05,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:43:05,753 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) [2021-10-28 09:43:05,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:43:05,753 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1528 [2021-10-28 09:43:05,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:43:05,754 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:43:05,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:05,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:43:05,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:43:05,758 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:43:05,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-28 09:43:05,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:43:05,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:43:08,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:43:10,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:43:18,688 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-28 09:43:18,688 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,688 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-28 09:43:18,688 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,688 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,688 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,688 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,688 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,689 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,689 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-28 09:43:18,689 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-28 09:43:18,689 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-28 09:43:18,689 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,691 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,691 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,691 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,692 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,692 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,692 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,692 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,692 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,692 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,693 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-28 09:43:18,693 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-28 09:43:18,693 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-28 09:43:18,693 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,693 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-28 09:43:18,693 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-28 09:43:18,693 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,693 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,694 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,694 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,694 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,694 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,694 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-28 09:43:18,695 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-28 09:43:18,695 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-28 09:43:18,695 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,695 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,695 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,696 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse18 (<= ~a29~0 277)) (.cse19 (= ~a25~0 9)) (.cse7 (= ~a25~0 12)) (.cse20 (<= (+ ~a23~0 55) 0)) (.cse8 (= ~a4~0 0)) (.cse9 (<= 247 ~a29~0)) (.cse13 (<= ~a23~0 312)) (.cse10 (<= (+ ~a23~0 43) 0)) (.cse11 (<= ~a29~0 140)) (.cse21 (= ~a25~0 10)) (.cse1 (<= ~a23~0 600000)) (.cse14 (<= 160 ~a23~0)) (.cse6 (<= ~a29~0 275)) (.cse15 (<= ~a25~0 10)) (.cse12 (= ~a25~0 11)) (.cse0 (= ~a25~0 13)) (.cse17 (<= ~a29~0 244)) (.cse2 (<= ~a29~0 274)) (.cse16 (<= 141 ~a29~0)) (.cse3 (= ~a3~0 1)) (.cse4 (= ~a4~0 1)) (.cse5 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse3 .cse5 .cse9) (and .cse10 .cse11 .cse8 .cse12 .cse3 .cse5) (and .cse7 .cse3 .cse4 .cse13 .cse5 .cse14) (and .cse6 .cse15 .cse16 .cse3 .cse4 (<= ~a25~0 9) .cse5) (and .cse7 .cse17 .cse8 .cse16 .cse3 .cse5) (and .cse1 (or (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse18) .cse7 .cse16 .cse3 (< 306 ~a23~0) .cse4 .cse5) (and (or (and .cse0 (<= (+ ~a23~0 599772) 0) .cse4) (and .cse10 .cse11 .cse8 .cse19)) .cse3 .cse5) (and (<= 260 ~a29~0) .cse10 (or .cse18 (not (= 2 ULTIMATE.start_calculate_output_~input))) .cse8 .cse19 .cse3 .cse5) (and .cse20 .cse6 .cse7 .cse8 .cse3 .cse5) (and .cse6 .cse12 .cse3 (<= (+ 119992 ~a23~0) 0) .cse4 .cse13 .cse5) (and .cse20 .cse11 .cse8 .cse3 .cse5 .cse21) (and .cse0 .cse10 .cse8 .cse2 .cse3 .cse5 .cse9) (and .cse1 .cse12 .cse16 .cse3 .cse4 .cse5 .cse14) (and .cse12 .cse16 .cse3 (<= 0 (+ 41 ~a23~0)) .cse4 .cse13 .cse5) (and .cse10 .cse11 .cse4 .cse21) (and .cse1 .cse15 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse3 .cse4 .cse5 .cse14) (and .cse6 .cse15 (<= ~a29~0 245) .cse16 .cse3 .cse4 .cse5) (and .cse12 .cse2 .cse16 .cse3 .cse4 (<= ~a23~0 371192) .cse5) (and .cse0 .cse17 .cse2 .cse16 .cse3 .cse4 .cse5))) [2021-10-28 09:43:18,696 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,696 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-28 09:43:18,697 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-28 09:43:18,697 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,697 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,697 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,698 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,698 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,698 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,698 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-28 09:43:18,698 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-28 09:43:18,699 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-28 09:43:18,699 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-28 09:43:18,699 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,699 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,699 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,700 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,700 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,700 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,700 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,700 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-28 09:43:18,701 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-28 09:43:18,701 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-28 09:43:18,701 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,701 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,701 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,702 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,703 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,703 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,705 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,705 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,705 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,706 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-28 09:43:18,706 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-28 09:43:18,706 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-28 09:43:18,707 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,708 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse18 (<= ~a29~0 277)) (.cse19 (= ~a25~0 9)) (.cse7 (= ~a25~0 12)) (.cse20 (<= (+ ~a23~0 55) 0)) (.cse8 (= ~a4~0 0)) (.cse9 (<= 247 ~a29~0)) (.cse13 (<= ~a23~0 312)) (.cse10 (<= (+ ~a23~0 43) 0)) (.cse11 (<= ~a29~0 140)) (.cse21 (= ~a25~0 10)) (.cse1 (<= ~a23~0 600000)) (.cse14 (<= 160 ~a23~0)) (.cse6 (<= ~a29~0 275)) (.cse15 (<= ~a25~0 10)) (.cse12 (= ~a25~0 11)) (.cse0 (= ~a25~0 13)) (.cse17 (<= ~a29~0 244)) (.cse2 (<= ~a29~0 274)) (.cse16 (<= 141 ~a29~0)) (.cse3 (= ~a3~0 1)) (.cse4 (= ~a4~0 1)) (.cse5 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse3 .cse5 .cse9) (and .cse10 .cse11 .cse8 .cse12 .cse3 .cse5) (and .cse7 .cse3 .cse4 .cse13 .cse5 .cse14) (and .cse6 .cse15 .cse16 .cse3 .cse4 (<= ~a25~0 9) .cse5) (and .cse7 .cse17 .cse8 .cse16 .cse3 .cse5) (and .cse1 (or (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse18) .cse7 .cse16 .cse3 (< 306 ~a23~0) .cse4 .cse5) (and (or (and .cse0 (<= (+ ~a23~0 599772) 0) .cse4) (and .cse10 .cse11 .cse8 .cse19)) .cse3 .cse5) (and (<= 260 ~a29~0) .cse10 (or .cse18 (not (= 2 ULTIMATE.start_calculate_output_~input))) .cse8 .cse19 .cse3 .cse5) (and .cse20 .cse6 .cse7 .cse8 .cse3 .cse5) (and .cse6 .cse12 .cse3 (<= (+ 119992 ~a23~0) 0) .cse4 .cse13 .cse5) (and .cse20 .cse11 .cse8 .cse3 .cse5 .cse21) (and .cse0 .cse10 .cse8 .cse2 .cse3 .cse5 .cse9) (and .cse1 .cse12 .cse16 .cse3 .cse4 .cse5 .cse14) (and .cse12 .cse16 .cse3 (<= 0 (+ 41 ~a23~0)) .cse4 .cse13 .cse5) (and .cse10 .cse11 .cse4 .cse21) (and .cse1 .cse15 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse3 .cse4 .cse5 .cse14) (and .cse6 .cse15 (<= ~a29~0 245) .cse16 .cse3 .cse4 .cse5) (and .cse12 .cse2 .cse16 .cse3 .cse4 (<= ~a23~0 371192) .cse5) (and .cse0 .cse17 .cse2 .cse16 .cse3 .cse4 .cse5))) [2021-10-28 09:43:18,708 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,708 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,708 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,708 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,709 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,709 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,709 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,709 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,709 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-28 09:43:18,710 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-28 09:43:18,710 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-28 09:43:18,710 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-28 09:43:18,710 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-28 09:43:18,710 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-28 09:43:18,711 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-28 09:43:18,711 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,711 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,711 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,711 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,712 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,712 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,712 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,712 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,712 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,713 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,713 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:43:18,713 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-28 09:43:18,713 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-28 09:43:18,713 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-28 09:43:18,713 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-28 09:43:18,714 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,714 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,714 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,714 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,714 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,715 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-28 09:43:18,715 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-28 09:43:18,715 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-28 09:43:18,715 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,715 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,716 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,716 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,716 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-28 09:43:18,716 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-28 09:43:18,716 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,717 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,717 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,717 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,717 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,717 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,718 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-28 09:43:18,718 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-28 09:43:18,718 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,718 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,718 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-28 09:43:18,720 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-28 09:43:18,720 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-28 09:43:18,720 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:43:18,720 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 178) no Hoare annotation was computed. [2021-10-28 09:43:18,721 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,721 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,721 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,721 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,721 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,722 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,722 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,722 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-28 09:43:18,722 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-28 09:43:18,722 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-28 09:43:18,723 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-28 09:43:18,723 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-28 09:43:18,723 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-28 09:43:18,723 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-28 09:43:18,723 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,724 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,724 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-28 09:43:18,724 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-28 09:43:18,724 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,724 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,725 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,725 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,725 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,725 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-28 09:43:18,725 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-28 09:43:18,725 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-28 09:43:18,726 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,726 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,726 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,726 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,726 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,727 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,727 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-28 09:43:18,727 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-28 09:43:18,727 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-28 09:43:18,727 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,728 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,728 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,728 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,728 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,728 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,729 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,729 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,729 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-28 09:43:18,729 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-28 09:43:18,729 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-28 09:43:18,730 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,730 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,730 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,730 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,730 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,731 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,731 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,731 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,731 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,731 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,731 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,732 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-28 09:43:18,732 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-28 09:43:18,732 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-28 09:43:18,732 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-28 09:43:18,732 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-28 09:43:18,733 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,733 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,733 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,733 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,733 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,734 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,734 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,734 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-28 09:43:18,734 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-28 09:43:18,734 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-28 09:43:18,735 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,735 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,735 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,735 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-28 09:43:18,735 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-28 09:43:18,735 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,736 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,736 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,736 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,736 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,736 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-28 09:43:18,737 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-28 09:43:18,737 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,737 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,737 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-28 09:43:18,737 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-28 09:43:18,737 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,738 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:43:18,738 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,738 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,738 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,738 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,739 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,739 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-28 09:43:18,739 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-28 09:43:18,739 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-28 09:43:18,739 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-28 09:43:18,740 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,740 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,740 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,740 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,740 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,740 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,741 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,741 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,742 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-28 09:43:18,742 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-28 09:43:18,743 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-28 09:43:18,743 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-28 09:43:18,743 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-28 09:43:18,744 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-28 09:43:18,744 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,744 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,745 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,745 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,746 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,747 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,748 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,748 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-28 09:43:18,748 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-28 09:43:18,748 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:43:18,749 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,749 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,749 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,749 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,749 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,750 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,750 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-28 09:43:18,750 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-28 09:43:18,750 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,750 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,750 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,751 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,751 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,751 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,751 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,751 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-28 09:43:18,751 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-28 09:43:18,752 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,752 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,752 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-28 09:43:18,752 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-28 09:43:18,752 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-28 09:43:18,753 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-28 09:43:18,759 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:43:18,761 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:43:18,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:43:18 BoogieIcfgContainer [2021-10-28 09:43:18,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:43:18,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:43:18,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:43:18,834 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:43:18,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:41:46" (3/4) ... [2021-10-28 09:43:18,838 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:43:18,871 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 09:43:18,874 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 09:43:18,876 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:43:18,879 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:43:19,056 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:43:19,057 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:43:19,059 INFO L168 Benchmark]: Toolchain (without parser) took 95867.39 ms. Allocated memory was 113.2 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 80.6 MB in the beginning and 660.4 MB in the end (delta: -579.8 MB). Peak memory consumption was 585.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:43:19,059 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:43:19,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1072.88 ms. Allocated memory is still 113.2 MB. Free memory was 80.3 MB in the beginning and 54.5 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:43:19,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 219.70 ms. Allocated memory is still 113.2 MB. Free memory was 54.5 MB in the beginning and 74.2 MB in the end (delta: -19.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:43:19,061 INFO L168 Benchmark]: Boogie Preprocessor took 187.21 ms. Allocated memory is still 113.2 MB. Free memory was 74.2 MB in the beginning and 64.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:43:19,061 INFO L168 Benchmark]: RCFGBuilder took 1948.44 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 64.5 MB in the beginning and 78.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 42.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:43:19,062 INFO L168 Benchmark]: TraceAbstraction took 92204.68 ms. Allocated memory was 148.9 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 78.7 MB in the beginning and 686.6 MB in the end (delta: -607.9 MB). Peak memory consumption was 1.0 GB. Max. memory is 16.1 GB. [2021-10-28 09:43:19,062 INFO L168 Benchmark]: Witness Printer took 223.89 ms. Allocated memory is still 1.3 GB. Free memory was 686.6 MB in the beginning and 660.4 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:43:19,065 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1072.88 ms. Allocated memory is still 113.2 MB. Free memory was 80.3 MB in the beginning and 54.5 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 219.70 ms. Allocated memory is still 113.2 MB. Free memory was 54.5 MB in the beginning and 74.2 MB in the end (delta: -19.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 187.21 ms. Allocated memory is still 113.2 MB. Free memory was 74.2 MB in the beginning and 64.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1948.44 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 64.5 MB in the beginning and 78.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 42.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 92204.68 ms. Allocated memory was 148.9 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 78.7 MB in the beginning and 686.6 MB in the end (delta: -607.9 MB). Peak memory consumption was 1.0 GB. Max. memory is 16.1 GB. * Witness Printer took 223.89 ms. Allocated memory is still 1.3 GB. Free memory was 686.6 MB in the beginning and 660.4 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 178]: 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: 92.0s, OverallIterations: 29, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 42.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4932 SDtfs, 8021 SDslu, 780 SDs, 0 SdLazy, 25916 SolverSat, 4151 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4089 GetRequests, 4005 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22009occurred in iteration=27, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.0s AutomataMinimizationTime, 29 MinimizatonAttempts, 35897 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 191 NumberOfFragments, 933 HoareAnnotationTreeSize, 3 FomulaSimplifications, 22793171 FormulaSimplificationTreeSizeReduction, 4.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 4625004 FormulaSimplificationTreeSizeReductionInter, 8.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 21.4s InterpolantComputationTime, 19784 NumberOfCodeBlocks, 19784 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 19749 ConstructedInterpolants, 0 QuantifiedInterpolants, 56131 SizeOfPredicates, 5 NumberOfNonLiveVariables, 5305 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 35 InterpolantComputations, 26 PerfectInterpolantSequences, 51182/53482 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: ((((((((((((((((((((((((a25 == 13 && a23 <= 600000) && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15) || (((((a29 <= 275 && a25 == 12) && a4 == 0) && a3 == 1) && a8 == 15) && 247 <= a29)) || (((((a23 + 43 <= 0 && a29 <= 140) && a4 == 0) && a25 == 11) && a3 == 1) && a8 == 15)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && 160 <= a23)) || ((((((a29 <= 275 && a25 <= 10) && 141 <= a29) && a3 == 1) && a4 == 1) && a25 <= 9) && a8 == 15)) || (((((a25 == 12 && a29 <= 244) && a4 == 0) && 141 <= a29) && a3 == 1) && a8 == 15)) || (((((((a23 <= 600000 && (!(6 == input) || a29 <= 277)) && a25 == 12) && 141 <= a29) && a3 == 1) && 306 < a23) && a4 == 1) && a8 == 15)) || (((((a25 == 13 && a23 + 599772 <= 0) && a4 == 1) || (((a23 + 43 <= 0 && a29 <= 140) && a4 == 0) && a25 == 9)) && a3 == 1) && a8 == 15)) || ((((((260 <= a29 && a23 + 43 <= 0) && (a29 <= 277 || !(2 == input))) && a4 == 0) && a25 == 9) && a3 == 1) && a8 == 15)) || (((((a23 + 55 <= 0 && a29 <= 275) && a25 == 12) && a4 == 0) && a3 == 1) && a8 == 15)) || ((((((a29 <= 275 && a25 == 11) && a3 == 1) && 119992 + a23 <= 0) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a23 + 55 <= 0 && a29 <= 140) && a4 == 0) && a3 == 1) && a8 == 15) && a25 == 10)) || ((((((a25 == 13 && a23 + 43 <= 0) && a4 == 0) && a29 <= 274) && a3 == 1) && a8 == 15) && 247 <= a29)) || ((((((a23 <= 600000 && a25 == 11) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15) && 160 <= a23)) || ((((((a25 == 11 && 141 <= a29) && a3 == 1) && 0 <= 41 + a23) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((a23 + 43 <= 0 && a29 <= 140) && a4 == 1) && a25 == 10)) || ((((a23 <= 600000 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 13 && a23 <= 600000) && a3 == 1) && a4 == 1) && a8 == 15) && 160 <= a23)) || ((((((a29 <= 275 && a25 <= 10) && a29 <= 245) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((a25 == 11 && a29 <= 274) && 141 <= a29) && a3 == 1) && a4 == 1) && a23 <= 371192) && a8 == 15)) || ((((((a25 == 13 && a29 <= 244) && a29 <= 274) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a25 == 13 && a23 <= 600000) && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15) || (((((a29 <= 275 && a25 == 12) && a4 == 0) && a3 == 1) && a8 == 15) && 247 <= a29)) || (((((a23 + 43 <= 0 && a29 <= 140) && a4 == 0) && a25 == 11) && a3 == 1) && a8 == 15)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && 160 <= a23)) || ((((((a29 <= 275 && a25 <= 10) && 141 <= a29) && a3 == 1) && a4 == 1) && a25 <= 9) && a8 == 15)) || (((((a25 == 12 && a29 <= 244) && a4 == 0) && 141 <= a29) && a3 == 1) && a8 == 15)) || (((((((a23 <= 600000 && (!(6 == input) || a29 <= 277)) && a25 == 12) && 141 <= a29) && a3 == 1) && 306 < a23) && a4 == 1) && a8 == 15)) || (((((a25 == 13 && a23 + 599772 <= 0) && a4 == 1) || (((a23 + 43 <= 0 && a29 <= 140) && a4 == 0) && a25 == 9)) && a3 == 1) && a8 == 15)) || ((((((260 <= a29 && a23 + 43 <= 0) && (a29 <= 277 || !(2 == input))) && a4 == 0) && a25 == 9) && a3 == 1) && a8 == 15)) || (((((a23 + 55 <= 0 && a29 <= 275) && a25 == 12) && a4 == 0) && a3 == 1) && a8 == 15)) || ((((((a29 <= 275 && a25 == 11) && a3 == 1) && 119992 + a23 <= 0) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a23 + 55 <= 0 && a29 <= 140) && a4 == 0) && a3 == 1) && a8 == 15) && a25 == 10)) || ((((((a25 == 13 && a23 + 43 <= 0) && a4 == 0) && a29 <= 274) && a3 == 1) && a8 == 15) && 247 <= a29)) || ((((((a23 <= 600000 && a25 == 11) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15) && 160 <= a23)) || ((((((a25 == 11 && 141 <= a29) && a3 == 1) && 0 <= 41 + a23) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((a23 + 43 <= 0 && a29 <= 140) && a4 == 1) && a25 == 10)) || ((((a23 <= 600000 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 13 && a23 <= 600000) && a3 == 1) && a4 == 1) && a8 == 15) && 160 <= a23)) || ((((((a29 <= 275 && a25 <= 10) && a29 <= 245) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((a25 == 11 && a29 <= 274) && 141 <= a29) && a3 == 1) && a4 == 1) && a23 <= 371192) && a8 == 15)) || ((((((a25 == 13 && a29 <= 244) && a29 <= 274) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 09:43:19,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22dde3ca-5160-45fa-bf2e-c4c83f2b214a/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...