./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label55.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU --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 9bd683bba4a6f80276f3e47665317b71beb0e1362c26cf1e7ce2f4cc203cd812 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:11:17,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:11:17,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:11:17,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:11:17,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:11:17,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:11:17,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:11:17,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:11:17,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:11:17,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:11:17,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:11:17,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:11:17,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:11:17,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:11:17,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:11:17,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:11:17,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:11:17,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:11:17,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:11:17,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:11:17,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:11:17,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:11:17,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:11:17,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:11:17,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:11:17,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:11:17,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:11:17,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:11:17,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:11:17,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:11:17,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:11:17,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:11:17,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:11:17,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:11:17,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:11:17,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:11:17,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:11:17,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:11:17,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:11:17,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:11:17,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:11:17,863 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 22:11:17,910 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:11:17,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:11:17,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:11:17,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:11:17,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:11:17,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:11:17,914 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:11:17,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:11:17,915 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:11:17,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:11:17,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:11:17,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:11:17,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:11:17,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:11:17,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:11:17,917 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:11:17,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:11:17,918 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:11:17,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:11:17,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:11:17,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:11:17,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:11:17,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:11:17,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:11:17,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:11:17,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:11:17,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:11:17,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:11:17,920 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:11:17,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:11:17,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:11:17,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:11:17,923 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_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bd683bba4a6f80276f3e47665317b71beb0e1362c26cf1e7ce2f4cc203cd812 [2021-11-02 22:11:18,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:11:18,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:11:18,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:11:18,225 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:11:18,226 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:11:18,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/eca-rers2012/Problem14_label55.c [2021-11-02 22:11:18,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/data/219aa4444/d4f88cbc8b2c4c28b001ec83dc9b735f/FLAGb0167e57f [2021-11-02 22:11:18,888 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:11:18,888 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/sv-benchmarks/c/eca-rers2012/Problem14_label55.c [2021-11-02 22:11:18,902 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/data/219aa4444/d4f88cbc8b2c4c28b001ec83dc9b735f/FLAGb0167e57f [2021-11-02 22:11:19,154 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/data/219aa4444/d4f88cbc8b2c4c28b001ec83dc9b735f [2021-11-02 22:11:19,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:11:19,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:11:19,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:11:19,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:11:19,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:11:19,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:11:19" (1/1) ... [2021-11-02 22:11:19,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c1cc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19, skipping insertion in model container [2021-11-02 22:11:19,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:11:19" (1/1) ... [2021-11-02 22:11:19,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:11:19,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:11:19,501 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_3cdd194a-b69d-466e-b11b-de830552ca95/sv-benchmarks/c/eca-rers2012/Problem14_label55.c[5831,5844] [2021-11-02 22:11:19,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:11:19,767 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:11:19,811 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_3cdd194a-b69d-466e-b11b-de830552ca95/sv-benchmarks/c/eca-rers2012/Problem14_label55.c[5831,5844] [2021-11-02 22:11:19,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:11:19,977 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:11:19,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19 WrapperNode [2021-11-02 22:11:19,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:11:19,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:11:19,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:11:19,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:11:19,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19" (1/1) ... [2021-11-02 22:11:20,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19" (1/1) ... [2021-11-02 22:11:20,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:11:20,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:11:20,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:11:20,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:11:20,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19" (1/1) ... [2021-11-02 22:11:20,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19" (1/1) ... [2021-11-02 22:11:20,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19" (1/1) ... [2021-11-02 22:11:20,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19" (1/1) ... [2021-11-02 22:11:20,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19" (1/1) ... [2021-11-02 22:11:20,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19" (1/1) ... [2021-11-02 22:11:20,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19" (1/1) ... [2021-11-02 22:11:20,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:11:20,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:11:20,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:11:20,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:11:20,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19" (1/1) ... [2021-11-02 22:11:20,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:11:20,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:20,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:11:20,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:11:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:11:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:11:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:11:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:11:21,823 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:11:21,823 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-02 22:11:21,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:11:21 BoogieIcfgContainer [2021-11-02 22:11:21,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:11:21,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:11:21,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:11:21,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:11:21,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:11:19" (1/3) ... [2021-11-02 22:11:21,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b96e19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:11:21, skipping insertion in model container [2021-11-02 22:11:21,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:11:19" (2/3) ... [2021-11-02 22:11:21,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b96e19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:11:21, skipping insertion in model container [2021-11-02 22:11:21,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:11:21" (3/3) ... [2021-11-02 22:11:21,839 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label55.c [2021-11-02 22:11:21,844 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:11:21,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 22:11:21,895 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:11:21,901 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 22:11:21,901 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-02 22:11:21,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 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) [2021-11-02 22:11:21,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-02 22:11:21,930 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:21,931 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:21,931 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:21,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:21,937 INFO L85 PathProgramCache]: Analyzing trace with hash -66916295, now seen corresponding path program 1 times [2021-11-02 22:11:21,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:21,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475487351] [2021-11-02 22:11:21,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:21,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:22,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:22,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475487351] [2021-11-02 22:11:22,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475487351] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:22,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:22,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:11:22,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107960439] [2021-11-02 22:11:22,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:22,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:22,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:22,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:11:22,293 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 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) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:23,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:23,458 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2021-11-02 22:11:23,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:23,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-02 22:11:23,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:23,475 INFO L225 Difference]: With dead ends: 685 [2021-11-02 22:11:23,476 INFO L226 Difference]: Without dead ends: 360 [2021-11-02 22:11:23,480 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 [2021-11-02 22:11:23,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-02 22:11:23,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-11-02 22:11:23,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 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) [2021-11-02 22:11:23,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2021-11-02 22:11:23,559 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 57 [2021-11-02 22:11:23,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:23,562 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2021-11-02 22:11:23,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:23,563 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2021-11-02 22:11:23,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-02 22:11:23,572 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:23,572 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, 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] [2021-11-02 22:11:23,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:11:23,573 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:23,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:23,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2108066841, now seen corresponding path program 1 times [2021-11-02 22:11:23,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:23,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458591533] [2021-11-02 22:11:23,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:23,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:23,917 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:23,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:23,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458591533] [2021-11-02 22:11:23,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458591533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:23,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:23,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:11:23,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067387677] [2021-11-02 22:11:23,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:11:23,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:23,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:11:23,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:11:23,923 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:25,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:25,051 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2021-11-02 22:11:25,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:11:25,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2021-11-02 22:11:25,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:25,057 INFO L225 Difference]: With dead ends: 1074 [2021-11-02 22:11:25,057 INFO L226 Difference]: Without dead ends: 716 [2021-11-02 22:11:25,060 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:11:25,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-11-02 22:11:25,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-11-02 22:11:25,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2615384615384615) internal successors, (902), 715 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:25,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2021-11-02 22:11:25,098 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 136 [2021-11-02 22:11:25,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:25,099 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2021-11-02 22:11:25,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:25,100 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2021-11-02 22:11:25,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-02 22:11:25,106 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:25,106 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:25,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:11:25,107 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:25,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:25,108 INFO L85 PathProgramCache]: Analyzing trace with hash -525654712, now seen corresponding path program 1 times [2021-11-02 22:11:25,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:25,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52028505] [2021-11-02 22:11:25,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:25,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-02 22:11:25,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:25,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52028505] [2021-11-02 22:11:25,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52028505] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:25,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590232702] [2021-11-02 22:11:25,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:25,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:25,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:25,358 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:11:25,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 22:11:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:25,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:11:25,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:11:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-02 22:11:26,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590232702] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:26,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:11:26,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-11-02 22:11:26,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101240556] [2021-11-02 22:11:26,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:26,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:26,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:26,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:11:26,104 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:26,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:26,836 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2021-11-02 22:11:26,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:26,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 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 162 [2021-11-02 22:11:26,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:26,846 INFO L225 Difference]: With dead ends: 1252 [2021-11-02 22:11:26,846 INFO L226 Difference]: Without dead ends: 1250 [2021-11-02 22:11:26,847 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:11:26,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-11-02 22:11:26,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2021-11-02 22:11:26,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:26,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2021-11-02 22:11:26,901 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 162 [2021-11-02 22:11:26,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:26,905 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2021-11-02 22:11:26,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:26,905 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2021-11-02 22:11:26,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-02 22:11:26,922 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:26,922 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, 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] [2021-11-02 22:11:26,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:27,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:27,126 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:27,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:27,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2083123476, now seen corresponding path program 1 times [2021-11-02 22:11:27,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:27,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383033130] [2021-11-02 22:11:27,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:27,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:27,286 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-02 22:11:27,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:27,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383033130] [2021-11-02 22:11:27,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383033130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:27,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:27,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:11:27,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249036756] [2021-11-02 22:11:27,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:11:27,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:27,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:11:27,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:11:27,294 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:28,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:28,165 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2021-11-02 22:11:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:11:28,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 216 [2021-11-02 22:11:28,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:28,174 INFO L225 Difference]: With dead ends: 1993 [2021-11-02 22:11:28,174 INFO L226 Difference]: Without dead ends: 1072 [2021-11-02 22:11:28,176 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 [2021-11-02 22:11:28,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-11-02 22:11:28,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-11-02 22:11:28,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:28,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2021-11-02 22:11:28,207 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 216 [2021-11-02 22:11:28,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:28,207 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2021-11-02 22:11:28,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:28,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2021-11-02 22:11:28,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-02 22:11:28,211 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:28,212 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:28,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 22:11:28,212 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:28,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:28,213 INFO L85 PathProgramCache]: Analyzing trace with hash -971236136, now seen corresponding path program 1 times [2021-11-02 22:11:28,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:28,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899913110] [2021-11-02 22:11:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:28,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:28,418 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 109 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:28,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:28,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899913110] [2021-11-02 22:11:28,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899913110] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:28,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698194853] [2021-11-02 22:11:28,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:28,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:28,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:28,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:11:28,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 22:11:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:28,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:11:28,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:11:29,377 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-02 22:11:29,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698194853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:29,378 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:11:29,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-02 22:11:29,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315235107] [2021-11-02 22:11:29,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:29,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:29,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:29,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:11:29,381 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:30,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:30,065 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2021-11-02 22:11:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:30,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 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 228 [2021-11-02 22:11:30,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:30,073 INFO L225 Difference]: With dead ends: 2320 [2021-11-02 22:11:30,073 INFO L226 Difference]: Without dead ends: 1250 [2021-11-02 22:11:30,075 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:11:30,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-11-02 22:11:30,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2021-11-02 22:11:30,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1671335200746966) internal successors, (1250), 1071 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:30,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2021-11-02 22:11:30,105 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 228 [2021-11-02 22:11:30,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:30,109 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2021-11-02 22:11:30,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:30,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2021-11-02 22:11:30,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-02 22:11:30,113 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:30,113 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:30,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:30,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:30,330 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:30,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:30,331 INFO L85 PathProgramCache]: Analyzing trace with hash -39272449, now seen corresponding path program 1 times [2021-11-02 22:11:30,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:30,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951767059] [2021-11-02 22:11:30,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:30,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:11:30,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:30,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951767059] [2021-11-02 22:11:30,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951767059] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:30,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:30,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:11:30,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888957429] [2021-11-02 22:11:30,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:30,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:30,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:30,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:11:30,449 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:31,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:31,163 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2021-11-02 22:11:31,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:31,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 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 231 [2021-11-02 22:11:31,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:31,174 INFO L225 Difference]: With dead ends: 2854 [2021-11-02 22:11:31,174 INFO L226 Difference]: Without dead ends: 1784 [2021-11-02 22:11:31,176 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 [2021-11-02 22:11:31,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-11-02 22:11:31,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2021-11-02 22:11:31,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1289960740325296) internal successors, (2013), 1783 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:31,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2013 transitions. [2021-11-02 22:11:31,221 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2013 transitions. Word has length 231 [2021-11-02 22:11:31,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:31,221 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2013 transitions. [2021-11-02 22:11:31,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:31,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2013 transitions. [2021-11-02 22:11:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-11-02 22:11:31,227 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:31,228 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, 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, 2, 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] [2021-11-02 22:11:31,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 22:11:31,228 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:31,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:31,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1928919929, now seen corresponding path program 1 times [2021-11-02 22:11:31,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:31,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581132342] [2021-11-02 22:11:31,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:31,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:31,440 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-02 22:11:31,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:31,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581132342] [2021-11-02 22:11:31,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581132342] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:31,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:31,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:11:31,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978856511] [2021-11-02 22:11:31,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:11:31,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:31,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:11:31,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:11:31,445 INFO L87 Difference]: Start difference. First operand 1784 states and 2013 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:32,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:32,194 INFO L93 Difference]: Finished difference Result 3624 states and 4105 transitions. [2021-11-02 22:11:32,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:11:32,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 [2021-11-02 22:11:32,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:32,206 INFO L225 Difference]: With dead ends: 3624 [2021-11-02 22:11:32,206 INFO L226 Difference]: Without dead ends: 1962 [2021-11-02 22:11:32,209 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 [2021-11-02 22:11:32,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-11-02 22:11:32,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-11-02 22:11:32,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.0846887268648346) internal successors, (1934), 1783 states have internal predecessors, (1934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:32,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1934 transitions. [2021-11-02 22:11:32,260 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1934 transitions. Word has length 348 [2021-11-02 22:11:32,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:32,261 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 1934 transitions. [2021-11-02 22:11:32,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:32,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1934 transitions. [2021-11-02 22:11:32,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2021-11-02 22:11:32,272 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:32,273 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, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:32,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 22:11:32,273 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:32,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:32,274 INFO L85 PathProgramCache]: Analyzing trace with hash 577845055, now seen corresponding path program 1 times [2021-11-02 22:11:32,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:32,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853539375] [2021-11-02 22:11:32,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:32,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:32,505 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-02 22:11:32,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:32,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853539375] [2021-11-02 22:11:32,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853539375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:32,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:32,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:11:32,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461747517] [2021-11-02 22:11:32,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:32,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:32,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:32,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:11:32,509 INFO L87 Difference]: Start difference. First operand 1784 states and 1934 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:33,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:33,052 INFO L93 Difference]: Finished difference Result 4278 states and 4675 transitions. [2021-11-02 22:11:33,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:33,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 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 443 [2021-11-02 22:11:33,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:33,067 INFO L225 Difference]: With dead ends: 4278 [2021-11-02 22:11:33,067 INFO L226 Difference]: Without dead ends: 2674 [2021-11-02 22:11:33,070 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 [2021-11-02 22:11:33,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-11-02 22:11:33,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2140. [2021-11-02 22:11:33,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.071996259934549) internal successors, (2293), 2139 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:33,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2293 transitions. [2021-11-02 22:11:33,131 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2293 transitions. Word has length 443 [2021-11-02 22:11:33,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:33,132 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2293 transitions. [2021-11-02 22:11:33,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:33,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2293 transitions. [2021-11-02 22:11:33,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-11-02 22:11:33,142 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:33,143 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, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:33,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 22:11:33,143 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:33,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:33,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1408157574, now seen corresponding path program 1 times [2021-11-02 22:11:33,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:33,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463482411] [2021-11-02 22:11:33,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:33,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-02 22:11:33,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:33,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463482411] [2021-11-02 22:11:33,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463482411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:33,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:33,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:11:33,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369021393] [2021-11-02 22:11:33,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:33,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:33,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:33,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:11:33,337 INFO L87 Difference]: Start difference. First operand 2140 states and 2293 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:33,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:33,917 INFO L93 Difference]: Finished difference Result 4812 states and 5228 transitions. [2021-11-02 22:11:33,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:33,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 450 [2021-11-02 22:11:33,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:33,931 INFO L225 Difference]: With dead ends: 4812 [2021-11-02 22:11:33,931 INFO L226 Difference]: Without dead ends: 2852 [2021-11-02 22:11:33,934 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 [2021-11-02 22:11:33,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-11-02 22:11:33,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2852. [2021-11-02 22:11:33,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0785689231848474) internal successors, (3075), 2851 states have internal predecessors, (3075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:34,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3075 transitions. [2021-11-02 22:11:34,001 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3075 transitions. Word has length 450 [2021-11-02 22:11:34,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:34,002 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3075 transitions. [2021-11-02 22:11:34,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:34,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3075 transitions. [2021-11-02 22:11:34,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-11-02 22:11:34,012 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:34,013 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, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:34,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-02 22:11:34,013 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:34,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:34,014 INFO L85 PathProgramCache]: Analyzing trace with hash -614119137, now seen corresponding path program 1 times [2021-11-02 22:11:34,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:34,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053681982] [2021-11-02 22:11:34,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:34,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:34,192 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 539 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-02 22:11:34,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:34,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053681982] [2021-11-02 22:11:34,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053681982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:34,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:34,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:11:34,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251069676] [2021-11-02 22:11:34,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:34,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:34,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:34,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:11:34,201 INFO L87 Difference]: Start difference. First operand 2852 states and 3075 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:34,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:34,773 INFO L93 Difference]: Finished difference Result 6592 states and 7212 transitions. [2021-11-02 22:11:34,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:34,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 491 [2021-11-02 22:11:34,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:34,792 INFO L225 Difference]: With dead ends: 6592 [2021-11-02 22:11:34,793 INFO L226 Difference]: Without dead ends: 3920 [2021-11-02 22:11:34,796 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 [2021-11-02 22:11:34,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-11-02 22:11:34,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2021-11-02 22:11:34,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0783047993264103) internal successors, (3842), 3563 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:34,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3842 transitions. [2021-11-02 22:11:34,889 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3842 transitions. Word has length 491 [2021-11-02 22:11:34,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:34,890 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3842 transitions. [2021-11-02 22:11:34,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:34,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3842 transitions. [2021-11-02 22:11:34,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2021-11-02 22:11:34,898 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:34,898 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, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:34,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-02 22:11:34,899 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:34,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:34,899 INFO L85 PathProgramCache]: Analyzing trace with hash -596499667, now seen corresponding path program 1 times [2021-11-02 22:11:34,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:34,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391928755] [2021-11-02 22:11:34,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:34,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:35,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 1144 proven. 104 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-11-02 22:11:35,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:35,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391928755] [2021-11-02 22:11:35,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391928755] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:35,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622284962] [2021-11-02 22:11:35,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:35,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:35,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:35,266 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:11:35,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-02 22:11:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:35,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:11:35,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:11:36,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2021-11-02 22:11:36,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622284962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:36,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:11:36,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-11-02 22:11:36,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602230010] [2021-11-02 22:11:36,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:36,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:36,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:36,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:11:36,909 INFO L87 Difference]: Start difference. First operand 3564 states and 3842 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:37,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:37,441 INFO L93 Difference]: Finished difference Result 7660 states and 8273 transitions. [2021-11-02 22:11:37,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:37,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 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 636 [2021-11-02 22:11:37,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:37,460 INFO L225 Difference]: With dead ends: 7660 [2021-11-02 22:11:37,460 INFO L226 Difference]: Without dead ends: 3564 [2021-11-02 22:11:37,464 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 635 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:11:37,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-11-02 22:11:37,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2021-11-02 22:11:37,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.072653570314936) internal successors, (3440), 3207 states have internal predecessors, (3440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:37,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3440 transitions. [2021-11-02 22:11:37,550 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3440 transitions. Word has length 636 [2021-11-02 22:11:37,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:37,552 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3440 transitions. [2021-11-02 22:11:37,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:37,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3440 transitions. [2021-11-02 22:11:37,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2021-11-02 22:11:37,559 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:37,560 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, 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, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:37,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:37,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-02 22:11:37,774 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:37,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:37,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1688245835, now seen corresponding path program 1 times [2021-11-02 22:11:37,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:37,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966009945] [2021-11-02 22:11:37,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:37,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:38,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1672 backedges. 1199 proven. 104 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-11-02 22:11:38,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:38,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966009945] [2021-11-02 22:11:38,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966009945] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:38,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52094971] [2021-11-02 22:11:38,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:38,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:38,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:38,140 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:11:38,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-02 22:11:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:38,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-02 22:11:38,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:11:40,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1672 backedges. 1226 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2021-11-02 22:11:40,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52094971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:40,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:11:40,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-11-02 22:11:40,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631264974] [2021-11-02 22:11:40,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:40,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:40,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:40,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:11:40,809 INFO L87 Difference]: Start difference. First operand 3208 states and 3440 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:41,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:41,284 INFO L93 Difference]: Finished difference Result 6414 states and 6882 transitions. [2021-11-02 22:11:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:41,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 648 [2021-11-02 22:11:41,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:41,301 INFO L225 Difference]: With dead ends: 6414 [2021-11-02 22:11:41,301 INFO L226 Difference]: Without dead ends: 3208 [2021-11-02 22:11:41,305 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:11:41,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-11-02 22:11:41,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2021-11-02 22:11:41,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.066994037179937) internal successors, (3042), 2851 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:41,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3042 transitions. [2021-11-02 22:11:41,366 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3042 transitions. Word has length 648 [2021-11-02 22:11:41,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:41,367 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3042 transitions. [2021-11-02 22:11:41,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:41,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3042 transitions. [2021-11-02 22:11:41,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2021-11-02 22:11:41,376 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:41,377 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, 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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:41,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:41,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-02 22:11:41,602 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:41,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:41,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1823211339, now seen corresponding path program 1 times [2021-11-02 22:11:41,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:41,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862953833] [2021-11-02 22:11:41,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:41,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:41,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1853 backedges. 1329 proven. 155 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-11-02 22:11:41,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:41,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862953833] [2021-11-02 22:11:41,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862953833] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:41,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739295581] [2021-11-02 22:11:41,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:41,973 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:41,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:41,974 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:11:42,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-02 22:11:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:42,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:11:42,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:11:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1853 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2021-11-02 22:11:44,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739295581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:44,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:11:44,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-02 22:11:44,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302494968] [2021-11-02 22:11:44,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:44,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:44,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:44,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:11:44,699 INFO L87 Difference]: Start difference. First operand 2852 states and 3042 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:45,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:45,208 INFO L93 Difference]: Finished difference Result 6414 states and 6877 transitions. [2021-11-02 22:11:45,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:45,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 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 793 [2021-11-02 22:11:45,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:45,228 INFO L225 Difference]: With dead ends: 6414 [2021-11-02 22:11:45,228 INFO L226 Difference]: Without dead ends: 3742 [2021-11-02 22:11:45,232 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 796 GetRequests, 793 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:11:45,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-11-02 22:11:45,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3386. [2021-11-02 22:11:45,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.059970457902511) internal successors, (3588), 3385 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:45,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3588 transitions. [2021-11-02 22:11:45,330 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3588 transitions. Word has length 793 [2021-11-02 22:11:45,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:45,331 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3588 transitions. [2021-11-02 22:11:45,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:45,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3588 transitions. [2021-11-02 22:11:45,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2021-11-02 22:11:45,376 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:45,377 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, 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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:45,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:45,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-02 22:11:45,578 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:45,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:45,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1112212444, now seen corresponding path program 1 times [2021-11-02 22:11:45,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:45,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984872797] [2021-11-02 22:11:45,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:45,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 1424 proven. 155 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-11-02 22:11:45,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:45,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984872797] [2021-11-02 22:11:45,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984872797] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:45,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490369663] [2021-11-02 22:11:45,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:45,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:45,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:45,905 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:11:45,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-02 22:11:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:46,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:11:46,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:11:48,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 833 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2021-11-02 22:11:48,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490369663] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:48,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:11:48,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-02 22:11:48,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845623163] [2021-11-02 22:11:48,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:48,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:48,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:48,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:11:48,803 INFO L87 Difference]: Start difference. First operand 3386 states and 3588 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:49,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:49,284 INFO L93 Difference]: Finished difference Result 7482 states and 7952 transitions. [2021-11-02 22:11:49,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:49,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 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 812 [2021-11-02 22:11:49,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:49,301 INFO L225 Difference]: With dead ends: 7482 [2021-11-02 22:11:49,302 INFO L226 Difference]: Without dead ends: 4276 [2021-11-02 22:11:49,305 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:11:49,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-11-02 22:11:49,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2021-11-02 22:11:49,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0563827190627288) internal successors, (4328), 4097 states have internal predecessors, (4328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:49,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4328 transitions. [2021-11-02 22:11:49,379 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4328 transitions. Word has length 812 [2021-11-02 22:11:49,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:49,380 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4328 transitions. [2021-11-02 22:11:49,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:49,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4328 transitions. [2021-11-02 22:11:49,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 827 [2021-11-02 22:11:49,392 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:49,392 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:49,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:49,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-02 22:11:49,608 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:49,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:49,609 INFO L85 PathProgramCache]: Analyzing trace with hash -264748761, now seen corresponding path program 1 times [2021-11-02 22:11:49,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:49,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565878152] [2021-11-02 22:11:49,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:49,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:49,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1997 backedges. 1473 proven. 155 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-11-02 22:11:49,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:49,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565878152] [2021-11-02 22:11:49,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565878152] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:49,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474374282] [2021-11-02 22:11:49,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:49,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:49,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:49,955 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:11:49,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-02 22:11:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:51,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-02 22:11:51,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:11:53,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1997 backedges. 1473 proven. 155 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-11-02 22:11:53,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474374282] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:53,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:11:53,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-02 22:11:53,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291616934] [2021-11-02 22:11:53,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:11:53,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:53,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:11:53,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:11:53,242 INFO L87 Difference]: Start difference. First operand 4098 states and 4328 transitions. Second operand has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:53,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:53,887 INFO L93 Difference]: Finished difference Result 9084 states and 9602 transitions. [2021-11-02 22:11:53,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:11:53,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 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 826 [2021-11-02 22:11:53,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:53,901 INFO L225 Difference]: With dead ends: 9084 [2021-11-02 22:11:53,901 INFO L226 Difference]: Without dead ends: 5166 [2021-11-02 22:11:53,905 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 829 GetRequests, 827 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:11:53,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-11-02 22:11:53,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4632. [2021-11-02 22:11:53,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0531202763981862) internal successors, (4877), 4631 states have internal predecessors, (4877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4877 transitions. [2021-11-02 22:11:53,990 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4877 transitions. Word has length 826 [2021-11-02 22:11:53,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:53,991 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4877 transitions. [2021-11-02 22:11:53,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:53,992 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4877 transitions. [2021-11-02 22:11:54,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2021-11-02 22:11:54,004 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:54,004 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-02 22:11:54,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:54,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-02 22:11:54,226 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:54,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:54,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1279771883, now seen corresponding path program 1 times [2021-11-02 22:11:54,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:54,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508658938] [2021-11-02 22:11:54,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:54,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:54,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2638 backedges. 1790 proven. 0 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2021-11-02 22:11:54,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:54,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508658938] [2021-11-02 22:11:54,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508658938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:54,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:11:54,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:11:54,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304168603] [2021-11-02 22:11:54,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:54,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:54,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:54,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:11:54,592 INFO L87 Difference]: Start difference. First operand 4632 states and 4877 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:55,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:55,139 INFO L93 Difference]: Finished difference Result 9440 states and 9970 transitions. [2021-11-02 22:11:55,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:55,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 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 903 [2021-11-02 22:11:55,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:55,163 INFO L225 Difference]: With dead ends: 9440 [2021-11-02 22:11:55,163 INFO L226 Difference]: Without dead ends: 4988 [2021-11-02 22:11:55,168 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 [2021-11-02 22:11:55,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-11-02 22:11:55,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2021-11-02 22:11:55,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0476190476190477) internal successors, (5038), 4809 states have internal predecessors, (5038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:55,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5038 transitions. [2021-11-02 22:11:55,279 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5038 transitions. Word has length 903 [2021-11-02 22:11:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:55,280 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5038 transitions. [2021-11-02 22:11:55,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5038 transitions. [2021-11-02 22:11:55,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2021-11-02 22:11:55,300 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:55,301 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:55,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-02 22:11:55,301 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:55,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1603463533, now seen corresponding path program 1 times [2021-11-02 22:11:55,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:55,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489602318] [2021-11-02 22:11:55,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:55,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2674 backedges. 1780 proven. 93 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2021-11-02 22:11:55,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:11:55,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489602318] [2021-11-02 22:11:55,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489602318] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:11:55,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324357544] [2021-11-02 22:11:55,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:55,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:55,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:11:55,746 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:11:55,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-02 22:11:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:11:57,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:11:57,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:11:58,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2674 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 2290 trivial. 0 not checked. [2021-11-02 22:11:58,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324357544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:11:58,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:11:58,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-02 22:11:58,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805885295] [2021-11-02 22:11:58,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:11:58,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:11:58,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:11:58,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:11:58,860 INFO L87 Difference]: Start difference. First operand 4810 states and 5038 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:59,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:11:59,329 INFO L93 Difference]: Finished difference Result 9618 states and 10077 transitions. [2021-11-02 22:11:59,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:11:59,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 927 [2021-11-02 22:11:59,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:11:59,339 INFO L225 Difference]: With dead ends: 9618 [2021-11-02 22:11:59,340 INFO L226 Difference]: Without dead ends: 4988 [2021-11-02 22:11:59,344 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 926 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:11:59,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-11-02 22:11:59,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2021-11-02 22:11:59,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.043876065710127) internal successors, (5020), 4809 states have internal predecessors, (5020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:59,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5020 transitions. [2021-11-02 22:11:59,419 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5020 transitions. Word has length 927 [2021-11-02 22:11:59,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:11:59,420 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5020 transitions. [2021-11-02 22:11:59,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:11:59,420 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5020 transitions. [2021-11-02 22:11:59,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 936 [2021-11-02 22:11:59,472 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:11:59,473 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:11:59,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-02 22:11:59,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:11:59,673 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:11:59,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:11:59,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1365813249, now seen corresponding path program 1 times [2021-11-02 22:11:59,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:11:59,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114133611] [2021-11-02 22:11:59,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:11:59,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:11:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:00,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2697 backedges. 1794 proven. 93 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-02 22:12:00,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:12:00,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114133611] [2021-11-02 22:12:00,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114133611] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:12:00,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038206908] [2021-11-02 22:12:00,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:00,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:12:00,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:12:00,152 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:12:00,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-02 22:12:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:01,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-02 22:12:01,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:12:09,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2697 backedges. 1954 proven. 266 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-02 22:12:09,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038206908] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:12:09,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:12:09,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-11-02 22:12:09,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402031421] [2021-11-02 22:12:09,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:12:09,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:12:09,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:12:09,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:12:09,629 INFO L87 Difference]: Start difference. First operand 4810 states and 5020 transitions. Second operand has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 8 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:11,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:12:11,812 INFO L93 Difference]: Finished difference Result 10396 states and 10846 transitions. [2021-11-02 22:12:11,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:12:11,813 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 8 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 935 [2021-11-02 22:12:11,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:12:11,822 INFO L225 Difference]: With dead ends: 10396 [2021-11-02 22:12:11,822 INFO L226 Difference]: Without dead ends: 5404 [2021-11-02 22:12:11,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 946 GetRequests, 931 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-02 22:12:11,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2021-11-02 22:12:11,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 4810. [2021-11-02 22:12:11,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0316074027864421) internal successors, (4961), 4809 states have internal predecessors, (4961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:11,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4961 transitions. [2021-11-02 22:12:11,904 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4961 transitions. Word has length 935 [2021-11-02 22:12:11,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:12:11,904 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 4961 transitions. [2021-11-02 22:12:11,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 8 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:11,905 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4961 transitions. [2021-11-02 22:12:11,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1069 [2021-11-02 22:12:11,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:12:11,921 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 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, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:12:11,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-02 22:12:12,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-02 22:12:12,146 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:12:12,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:12:12,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2022978308, now seen corresponding path program 1 times [2021-11-02 22:12:12,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:12:12,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659891465] [2021-11-02 22:12:12,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:12,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:12:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:12,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3740 backedges. 1271 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2021-11-02 22:12:12,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:12:12,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659891465] [2021-11-02 22:12:12,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659891465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:12:12,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:12:12,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:12:12,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024120508] [2021-11-02 22:12:12,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:12:12,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:12:12,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:12:12,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:12:12,728 INFO L87 Difference]: Start difference. First operand 4810 states and 4961 transitions. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:13,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:12:13,228 INFO L93 Difference]: Finished difference Result 9618 states and 9925 transitions. [2021-11-02 22:12:13,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:12:13,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 1068 [2021-11-02 22:12:13,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:12:13,237 INFO L225 Difference]: With dead ends: 9618 [2021-11-02 22:12:13,237 INFO L226 Difference]: Without dead ends: 4988 [2021-11-02 22:12:13,241 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 [2021-11-02 22:12:13,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-11-02 22:12:13,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2021-11-02 22:12:13,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0284740324844597) internal successors, (5129), 4987 states have internal predecessors, (5129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:13,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5129 transitions. [2021-11-02 22:12:13,332 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5129 transitions. Word has length 1068 [2021-11-02 22:12:13,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:12:13,334 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5129 transitions. [2021-11-02 22:12:13,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:13,334 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5129 transitions. [2021-11-02 22:12:13,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1094 [2021-11-02 22:12:13,355 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:12:13,356 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 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, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-02 22:12:13,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-02 22:12:13,356 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:12:13,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:12:13,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1168039199, now seen corresponding path program 1 times [2021-11-02 22:12:13,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:12:13,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049403381] [2021-11-02 22:12:13,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:13,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:12:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:14,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3790 backedges. 1321 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2021-11-02 22:12:14,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:12:14,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049403381] [2021-11-02 22:12:14,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049403381] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:12:14,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:12:14,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:12:14,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605019718] [2021-11-02 22:12:14,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:12:14,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:12:14,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:12:14,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:12:14,016 INFO L87 Difference]: Start difference. First operand 4988 states and 5129 transitions. Second operand has 5 states, 5 states have (on average 76.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:14,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:12:14,839 INFO L93 Difference]: Finished difference Result 9800 states and 10079 transitions. [2021-11-02 22:12:14,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:12:14,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 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 1093 [2021-11-02 22:12:14,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:12:14,851 INFO L225 Difference]: With dead ends: 9800 [2021-11-02 22:12:14,851 INFO L226 Difference]: Without dead ends: 4810 [2021-11-02 22:12:14,856 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:12:14,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-11-02 22:12:14,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4454. [2021-11-02 22:12:14,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0197619582304065) internal successors, (4541), 4453 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:14,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4541 transitions. [2021-11-02 22:12:14,975 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4541 transitions. Word has length 1093 [2021-11-02 22:12:14,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:12:14,976 INFO L470 AbstractCegarLoop]: Abstraction has 4454 states and 4541 transitions. [2021-11-02 22:12:14,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:14,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4541 transitions. [2021-11-02 22:12:14,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1117 [2021-11-02 22:12:14,998 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:12:14,998 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:12:14,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-02 22:12:14,999 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:12:14,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:12:15,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1857606004, now seen corresponding path program 1 times [2021-11-02 22:12:15,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:12:15,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147517672] [2021-11-02 22:12:15,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:15,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:12:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 3977 backedges. 2906 proven. 72 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2021-11-02 22:12:15,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:12:15,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147517672] [2021-11-02 22:12:15,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147517672] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:12:15,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772955548] [2021-11-02 22:12:15,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:15,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:12:15,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:12:15,566 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:12:15,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-02 22:12:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:18,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-02 22:12:18,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:12:20,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3977 backedges. 2619 proven. 0 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2021-11-02 22:12:20,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772955548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:12:20,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:12:20,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-11-02 22:12:20,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089846011] [2021-11-02 22:12:20,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:12:20,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:12:20,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:12:20,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:12:20,773 INFO L87 Difference]: Start difference. First operand 4454 states and 4541 transitions. Second operand has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:21,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:12:21,482 INFO L93 Difference]: Finished difference Result 9262 states and 9450 transitions. [2021-11-02 22:12:21,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:12:21,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 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 1116 [2021-11-02 22:12:21,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:12:21,493 INFO L225 Difference]: With dead ends: 9262 [2021-11-02 22:12:21,493 INFO L226 Difference]: Without dead ends: 4988 [2021-11-02 22:12:21,497 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1120 GetRequests, 1115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:12:21,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-11-02 22:12:21,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2021-11-02 22:12:21,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0189228529839884) internal successors, (4900), 4809 states have internal predecessors, (4900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:21,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4900 transitions. [2021-11-02 22:12:21,568 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4900 transitions. Word has length 1116 [2021-11-02 22:12:21,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:12:21,569 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 4900 transitions. [2021-11-02 22:12:21,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:21,570 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4900 transitions. [2021-11-02 22:12:21,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1119 [2021-11-02 22:12:21,584 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:12:21,585 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, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:12:21,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-02 22:12:21,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:12:21,802 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:12:21,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:12:21,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1652168696, now seen corresponding path program 1 times [2021-11-02 22:12:21,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:12:21,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102812339] [2021-11-02 22:12:21,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:21,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:12:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3676 backedges. 2336 proven. 0 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2021-11-02 22:12:22,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:12:22,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102812339] [2021-11-02 22:12:22,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102812339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:12:22,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:12:22,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:12:22,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378973376] [2021-11-02 22:12:22,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:12:22,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:12:22,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:12:22,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:12:22,192 INFO L87 Difference]: Start difference. First operand 4810 states and 4900 transitions. Second operand has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:22,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:12:22,632 INFO L93 Difference]: Finished difference Result 9618 states and 9798 transitions. [2021-11-02 22:12:22,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:12:22,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 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 1118 [2021-11-02 22:12:22,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:12:22,643 INFO L225 Difference]: With dead ends: 9618 [2021-11-02 22:12:22,643 INFO L226 Difference]: Without dead ends: 4632 [2021-11-02 22:12:22,652 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 [2021-11-02 22:12:22,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-11-02 22:12:22,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2021-11-02 22:12:22,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0172917134516057) internal successors, (4530), 4453 states have internal predecessors, (4530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:22,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4530 transitions. [2021-11-02 22:12:22,801 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4530 transitions. Word has length 1118 [2021-11-02 22:12:22,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:12:22,802 INFO L470 AbstractCegarLoop]: Abstraction has 4454 states and 4530 transitions. [2021-11-02 22:12:22,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:22,803 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4530 transitions. [2021-11-02 22:12:22,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1654 [2021-11-02 22:12:22,826 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:12:22,827 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, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:12:22,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-02 22:12:22,827 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:12:22,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:12:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1570608280, now seen corresponding path program 1 times [2021-11-02 22:12:22,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:12:22,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80142946] [2021-11-02 22:12:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:22,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:12:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:24,096 INFO L134 CoverageAnalysis]: Checked inductivity of 8760 backedges. 4557 proven. 588 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2021-11-02 22:12:24,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:12:24,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80142946] [2021-11-02 22:12:24,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80142946] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:12:24,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256193814] [2021-11-02 22:12:24,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:24,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:12:24,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:12:24,102 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:12:24,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-02 22:12:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:27,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 2017 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-02 22:12:27,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:12:32,936 INFO L134 CoverageAnalysis]: Checked inductivity of 8760 backedges. 3686 proven. 498 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-11-02 22:12:32,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256193814] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:12:32,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:12:32,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-11-02 22:12:32,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629009677] [2021-11-02 22:12:32,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 22:12:32,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:12:32,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 22:12:32,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-02 22:12:32,942 INFO L87 Difference]: Start difference. First operand 4454 states and 4530 transitions. Second operand has 11 states, 11 states have (on average 113.54545454545455) internal successors, (1249), 11 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:37,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:12:37,512 INFO L93 Difference]: Finished difference Result 10703 states and 10884 transitions. [2021-11-02 22:12:37,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-02 22:12:37,512 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 113.54545454545455) internal successors, (1249), 11 states have internal predecessors, (1249), 0 states have call successors, (0), 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 1653 [2021-11-02 22:12:37,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:12:37,523 INFO L225 Difference]: With dead ends: 10703 [2021-11-02 22:12:37,523 INFO L226 Difference]: Without dead ends: 6412 [2021-11-02 22:12:37,526 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1676 GetRequests, 1659 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2021-11-02 22:12:37,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-11-02 22:12:37,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 5166. [2021-11-02 22:12:37,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.016650532429816) internal successors, (5251), 5165 states have internal predecessors, (5251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:37,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5251 transitions. [2021-11-02 22:12:37,603 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5251 transitions. Word has length 1653 [2021-11-02 22:12:37,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:12:37,604 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5251 transitions. [2021-11-02 22:12:37,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 113.54545454545455) internal successors, (1249), 11 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:37,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5251 transitions. [2021-11-02 22:12:37,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1827 [2021-11-02 22:12:37,633 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:12:37,634 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 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, 10, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:12:37,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-02 22:12:37,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:12:37,850 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:12:37,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:12:37,850 INFO L85 PathProgramCache]: Analyzing trace with hash 118949285, now seen corresponding path program 1 times [2021-11-02 22:12:37,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:12:37,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986636468] [2021-11-02 22:12:37,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:37,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:12:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:38,899 INFO L134 CoverageAnalysis]: Checked inductivity of 10389 backedges. 3542 proven. 1045 refuted. 0 times theorem prover too weak. 5802 trivial. 0 not checked. [2021-11-02 22:12:38,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:12:38,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986636468] [2021-11-02 22:12:38,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986636468] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:12:38,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357874356] [2021-11-02 22:12:38,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:38,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:12:38,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:12:38,902 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:12:38,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-02 22:12:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:42,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:12:42,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:12:46,338 INFO L134 CoverageAnalysis]: Checked inductivity of 10389 backedges. 4587 proven. 0 refuted. 0 times theorem prover too weak. 5802 trivial. 0 not checked. [2021-11-02 22:12:46,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357874356] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:12:46,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:12:46,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-02 22:12:46,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407501604] [2021-11-02 22:12:46,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:12:46,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:12:46,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:12:46,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:12:46,344 INFO L87 Difference]: Start difference. First operand 5166 states and 5251 transitions. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:46,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:12:46,747 INFO L93 Difference]: Finished difference Result 10686 states and 10858 transitions. [2021-11-02 22:12:46,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:12:46,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 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 1826 [2021-11-02 22:12:46,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:12:46,755 INFO L225 Difference]: With dead ends: 10686 [2021-11-02 22:12:46,755 INFO L226 Difference]: Without dead ends: 4276 [2021-11-02 22:12:46,759 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1829 GetRequests, 1825 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:12:46,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-11-02 22:12:46,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3742. [2021-11-02 22:12:46,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0133654103180967) internal successors, (3791), 3741 states have internal predecessors, (3791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:46,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3791 transitions. [2021-11-02 22:12:46,806 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3791 transitions. Word has length 1826 [2021-11-02 22:12:46,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:12:46,807 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 3791 transitions. [2021-11-02 22:12:46,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:46,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3791 transitions. [2021-11-02 22:12:46,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1951 [2021-11-02 22:12:46,916 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:12:46,917 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 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, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:12:46,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-02 22:12:47,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-02 22:12:47,118 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:12:47,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:12:47,119 INFO L85 PathProgramCache]: Analyzing trace with hash -325120608, now seen corresponding path program 1 times [2021-11-02 22:12:47,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:12:47,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589746185] [2021-11-02 22:12:47,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:47,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:12:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 11999 backedges. 7122 proven. 404 refuted. 0 times theorem prover too weak. 4473 trivial. 0 not checked. [2021-11-02 22:12:48,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:12:48,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589746185] [2021-11-02 22:12:48,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589746185] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:12:48,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365930348] [2021-11-02 22:12:48,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:48,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:12:48,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:12:48,117 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:12:48,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-02 22:12:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:52,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 2357 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-02 22:12:52,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:12:56,395 INFO L134 CoverageAnalysis]: Checked inductivity of 11999 backedges. 2324 proven. 0 refuted. 0 times theorem prover too weak. 9675 trivial. 0 not checked. [2021-11-02 22:12:56,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365930348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:12:56,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:12:56,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-11-02 22:12:56,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719442689] [2021-11-02 22:12:56,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:12:56,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:12:56,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:12:56,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:12:56,400 INFO L87 Difference]: Start difference. First operand 3742 states and 3791 transitions. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:56,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:12:56,766 INFO L93 Difference]: Finished difference Result 7126 states and 7222 transitions. [2021-11-02 22:12:56,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:12:56,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 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 1950 [2021-11-02 22:12:56,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:12:56,774 INFO L225 Difference]: With dead ends: 7126 [2021-11-02 22:12:56,775 INFO L226 Difference]: Without dead ends: 3742 [2021-11-02 22:12:56,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1954 GetRequests, 1949 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:12:56,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-11-02 22:12:56,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3564. [2021-11-02 22:12:56,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0126298063429695) internal successors, (3608), 3563 states have internal predecessors, (3608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:56,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3608 transitions. [2021-11-02 22:12:56,820 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3608 transitions. Word has length 1950 [2021-11-02 22:12:56,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:12:56,822 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3608 transitions. [2021-11-02 22:12:56,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:12:56,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3608 transitions. [2021-11-02 22:12:56,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2148 [2021-11-02 22:12:56,858 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:12:56,859 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 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, 12, 12, 12, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:12:56,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-02 22:12:57,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-02 22:12:57,086 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:12:57,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:12:57,087 INFO L85 PathProgramCache]: Analyzing trace with hash -634425027, now seen corresponding path program 1 times [2021-11-02 22:12:57,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:12:57,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405333090] [2021-11-02 22:12:57,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:57,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:12:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:12:58,270 INFO L134 CoverageAnalysis]: Checked inductivity of 14973 backedges. 10501 proven. 103 refuted. 0 times theorem prover too weak. 4369 trivial. 0 not checked. [2021-11-02 22:12:58,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:12:58,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405333090] [2021-11-02 22:12:58,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405333090] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:12:58,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687300908] [2021-11-02 22:12:58,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:12:58,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:12:58,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:12:58,272 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:12:58,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-02 22:13:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:13:03,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:13:03,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:13:07,871 INFO L134 CoverageAnalysis]: Checked inductivity of 14973 backedges. 9751 proven. 0 refuted. 0 times theorem prover too weak. 5222 trivial. 0 not checked. [2021-11-02 22:13:07,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687300908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:13:07,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:13:07,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-11-02 22:13:07,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556087974] [2021-11-02 22:13:07,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:13:07,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:13:07,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:13:07,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:13:07,876 INFO L87 Difference]: Start difference. First operand 3564 states and 3608 transitions. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:13:08,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:13:08,251 INFO L93 Difference]: Finished difference Result 6412 states and 6491 transitions. [2021-11-02 22:13:08,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:13:08,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 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 2147 [2021-11-02 22:13:08,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:13:08,253 INFO L225 Difference]: With dead ends: 6412 [2021-11-02 22:13:08,258 INFO L226 Difference]: Without dead ends: 0 [2021-11-02 22:13:08,260 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2151 GetRequests, 2146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:13:08,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-02 22:13:08,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-02 22:13:08,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:13:08,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-02 22:13:08,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2147 [2021-11-02 22:13:08,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:13:08,263 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:13:08,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:13:08,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-02 22:13:08,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-02 22:13:08,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 22:13:08,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-02 22:13:08,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-02 22:13:08,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-02 22:13:08,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:13:08,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:13:08,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:13:11,636 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-11-02 22:13:11,636 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-11-02 22:13:11,636 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-11-02 22:13:11,636 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-11-02 22:13:11,636 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-11-02 22:13:11,636 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,636 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-11-02 22:13:11,637 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-11-02 22:13:11,638 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-11-02 22:13:11,639 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-11-02 22:13:11,639 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-11-02 22:13:11,639 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-11-02 22:13:11,639 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,639 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,639 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,639 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-11-02 22:13:11,639 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-11-02 22:13:11,641 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-02 22:13:11,641 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-11-02 22:13:11,641 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-11-02 22:13:11,641 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-11-02 22:13:11,641 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-11-02 22:13:11,641 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-11-02 22:13:11,641 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,641 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,641 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,641 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-11-02 22:13:11,641 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-11-02 22:13:11,641 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-11-02 22:13:11,642 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-11-02 22:13:11,642 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-11-02 22:13:11,642 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-11-02 22:13:11,642 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-11-02 22:13:11,642 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-11-02 22:13:11,642 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,642 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,643 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,643 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-11-02 22:13:11,643 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-11-02 22:13:11,643 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-11-02 22:13:11,643 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-11-02 22:13:11,643 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-11-02 22:13:11,643 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-11-02 22:13:11,644 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-11-02 22:13:11,644 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-11-02 22:13:11,644 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-11-02 22:13:11,644 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,644 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,644 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,645 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-11-02 22:13:11,645 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-02 22:13:11,646 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-11-02 22:13:11,646 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-11-02 22:13:11,646 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-11-02 22:13:11,646 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-11-02 22:13:11,646 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-11-02 22:13:11,646 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-02 22:13:11,647 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,647 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,647 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,647 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-11-02 22:13:11,647 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-11-02 22:13:11,647 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-02 22:13:11,647 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-11-02 22:13:11,648 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-11-02 22:13:11,648 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-11-02 22:13:11,648 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-11-02 22:13:11,648 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-11-02 22:13:11,648 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-11-02 22:13:11,648 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,648 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,649 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,650 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-11-02 22:13:11,650 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-02 22:13:11,651 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-11-02 22:13:11,651 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-11-02 22:13:11,651 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-11-02 22:13:11,651 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-11-02 22:13:11,651 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-11-02 22:13:11,651 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-11-02 22:13:11,652 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,652 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,652 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,653 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-11-02 22:13:11,653 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-11-02 22:13:11,653 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-11-02 22:13:11,653 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-02 22:13:11,653 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-11-02 22:13:11,653 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2021-11-02 22:13:11,654 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-11-02 22:13:11,654 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-11-02 22:13:11,654 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-11-02 22:13:11,654 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-11-02 22:13:11,654 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,654 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,655 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,655 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-11-02 22:13:11,655 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-11-02 22:13:11,655 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-11-02 22:13:11,656 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-11-02 22:13:11,656 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-11-02 22:13:11,656 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-11-02 22:13:11,657 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-11-02 22:13:11,657 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-11-02 22:13:11,657 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,657 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,657 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,657 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-02 22:13:11,657 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-11-02 22:13:11,658 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-11-02 22:13:11,658 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-11-02 22:13:11,658 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-11-02 22:13:11,658 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-11-02 22:13:11,658 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-11-02 22:13:11,658 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-11-02 22:13:11,658 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,659 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,659 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,659 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-11-02 22:13:11,659 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-11-02 22:13:11,659 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-11-02 22:13:11,659 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-11-02 22:13:11,660 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-11-02 22:13:11,660 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-11-02 22:13:11,660 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-11-02 22:13:11,660 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-11-02 22:13:11,660 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,660 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,660 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,661 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-11-02 22:13:11,661 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-11-02 22:13:11,661 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-11-02 22:13:11,661 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-11-02 22:13:11,661 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-11-02 22:13:11,661 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-11-02 22:13:11,661 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-11-02 22:13:11,662 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-11-02 22:13:11,662 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,662 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,662 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,662 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-11-02 22:13:11,662 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-02 22:13:11,663 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-11-02 22:13:11,663 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-11-02 22:13:11,663 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-11-02 22:13:11,663 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-11-02 22:13:11,663 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-11-02 22:13:11,663 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-11-02 22:13:11,663 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,664 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,664 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-11-02 22:13:11,664 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-02 22:13:11,664 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-11-02 22:13:11,664 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-11-02 22:13:11,664 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-11-02 22:13:11,664 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-11-02 22:13:11,665 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-11-02 22:13:11,665 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-11-02 22:13:11,665 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,665 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,665 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-11-02 22:13:11,665 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-02 22:13:11,666 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-11-02 22:13:11,666 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-11-02 22:13:11,666 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-11-02 22:13:11,666 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-11-02 22:13:11,666 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-11-02 22:13:11,666 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,666 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,667 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse2 (<= (+ 49 ~a12~0) 0)) (.cse11 (<= 9 ~a21~0)) (.cse12 (<= ~a21~0 9)) (.cse13 (<= ~a15~0 8)) (.cse6 (<= 8 ~a21~0)) (.cse0 (= ~a24~0 1)) (.cse16 (< 80 ~a12~0)) (.cse7 (<= ~a21~0 8)) (.cse3 (= ~a15~0 8))) (let ((.cse5 (<= ~a15~0 7)) (.cse14 (<= ~a12~0 76)) (.cse9 (<= ~a12~0 11)) (.cse1 (<= ~a21~0 7)) (.cse10 (<= 10 ~a21~0)) (.cse19 (<= 7 ~a21~0)) (.cse8 (<= 9 ~a15~0)) (.cse20 (<= ~a12~0 10)) (.cse15 (< 0 (+ ~a12~0 43))) (.cse17 (or (and .cse11 .cse12 .cse0 .cse13 .cse16) (and .cse0 .cse13 .cse16 .cse6 .cse7 (not (= 5 ~a15~0))) (and .cse0 .cse16 .cse7 .cse3))) (.cse4 (let ((.cse21 (<= ~a15~0 6))) (or (and .cse0 .cse21) (and .cse21 .cse2)))) (.cse18 (<= ~a21~0 6))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0) (and .cse0 .cse5 .cse6 .cse7) (and .cse0 .cse8 (<= ~a12~0 95434) (< 95380 ~a12~0)) (and .cse0 .cse8 .cse6 .cse7 (<= (+ ~a12~0 526767) 0)) (and .cse9 .cse0 .cse10) (and .cse11 .cse12 .cse0 .cse13 .cse14 .cse15) (and .cse11 .cse0 .cse5 .cse15) (and .cse0 .cse16 (= ~a21~0 6) (= 7 ~a15~0)) (and .cse17 .cse18) (and .cse0 (or (and .cse14 .cse6 .cse7 .cse15 .cse3) (and .cse9 .cse19 .cse15 .cse3))) (and .cse0 .cse13 .cse1 (exists ((v_~a12~0_444 Int)) (and (< 95380 v_~a12~0_444) (<= (+ 546123 ~a12~0) (div (* v_~a12~0_444 9) 10)) (<= v_~a12~0_444 95434)))) (and .cse0 .cse16 .cse10) (and .cse0 .cse19 .cse8 .cse16) (and (<= ~a12~0 72) .cse0 .cse6 .cse7 (< 18 ~a12~0)) (and .cse0 .cse13 .cse18 .cse20 .cse15) (and .cse0 .cse20 .cse6 .cse7 .cse15) (and .cse17 (<= ~a12~0 73282)) (and .cse4 .cse18) (and .cse0 .cse13 .cse18 .cse2)))) [2021-11-02 22:13:11,667 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-11-02 22:13:11,667 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-11-02 22:13:11,667 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-02 22:13:11,668 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-11-02 22:13:11,668 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-11-02 22:13:11,668 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-11-02 22:13:11,668 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-11-02 22:13:11,668 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-11-02 22:13:11,668 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,668 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,669 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-11-02 22:13:11,669 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-11-02 22:13:11,669 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-11-02 22:13:11,669 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-11-02 22:13:11,670 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-11-02 22:13:11,670 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-11-02 22:13:11,670 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-11-02 22:13:11,670 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-11-02 22:13:11,670 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,670 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,670 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-02 22:13:11,671 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-11-02 22:13:11,671 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-11-02 22:13:11,671 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-02 22:13:11,671 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-11-02 22:13:11,671 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-11-02 22:13:11,671 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-11-02 22:13:11,672 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,672 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,672 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-11-02 22:13:11,672 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,672 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-11-02 22:13:11,672 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse2 (<= (+ 49 ~a12~0) 0)) (.cse11 (<= 9 ~a21~0)) (.cse12 (<= ~a21~0 9)) (.cse13 (<= ~a15~0 8)) (.cse6 (<= 8 ~a21~0)) (.cse0 (= ~a24~0 1)) (.cse16 (< 80 ~a12~0)) (.cse7 (<= ~a21~0 8)) (.cse3 (= ~a15~0 8))) (let ((.cse5 (<= ~a15~0 7)) (.cse14 (<= ~a12~0 76)) (.cse9 (<= ~a12~0 11)) (.cse1 (<= ~a21~0 7)) (.cse10 (<= 10 ~a21~0)) (.cse19 (<= 7 ~a21~0)) (.cse8 (<= 9 ~a15~0)) (.cse20 (<= ~a12~0 10)) (.cse15 (< 0 (+ ~a12~0 43))) (.cse17 (or (and .cse11 .cse12 .cse0 .cse13 .cse16) (and .cse0 .cse13 .cse16 .cse6 .cse7 (not (= 5 ~a15~0))) (and .cse0 .cse16 .cse7 .cse3))) (.cse4 (let ((.cse21 (<= ~a15~0 6))) (or (and .cse0 .cse21) (and .cse21 .cse2)))) (.cse18 (<= ~a21~0 6))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0) (and .cse0 .cse5 .cse6 .cse7) (and .cse0 .cse8 (<= ~a12~0 95434) (< 95380 ~a12~0)) (and .cse0 .cse8 .cse6 .cse7 (<= (+ ~a12~0 526767) 0)) (and .cse9 .cse0 .cse10) (and .cse11 .cse12 .cse0 .cse13 .cse14 .cse15) (and .cse11 .cse0 .cse5 .cse15) (and .cse0 .cse16 (= ~a21~0 6) (= 7 ~a15~0)) (and .cse17 .cse18) (and .cse0 (or (and .cse14 .cse6 .cse7 .cse15 .cse3) (and .cse9 .cse19 .cse15 .cse3))) (and .cse0 .cse13 .cse1 (exists ((v_~a12~0_444 Int)) (and (< 95380 v_~a12~0_444) (<= (+ 546123 ~a12~0) (div (* v_~a12~0_444 9) 10)) (<= v_~a12~0_444 95434)))) (and .cse0 .cse16 .cse10) (and .cse0 .cse19 .cse8 .cse16) (and (<= ~a12~0 72) .cse0 .cse6 .cse7 (< 18 ~a12~0)) (and .cse0 .cse13 .cse18 .cse20 .cse15) (and .cse0 .cse20 .cse6 .cse7 .cse15) (and .cse17 (<= ~a12~0 73282)) (and .cse4 .cse18) (and .cse0 .cse13 .cse18 .cse2)))) [2021-11-02 22:13:11,673 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-11-02 22:13:11,673 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-11-02 22:13:11,673 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-02 22:13:11,673 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-11-02 22:13:11,673 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-11-02 22:13:11,673 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-11-02 22:13:11,674 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-11-02 22:13:11,674 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-11-02 22:13:11,674 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-11-02 22:13:11,674 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,674 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,674 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-11-02 22:13:11,674 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-11-02 22:13:11,675 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-11-02 22:13:11,675 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-11-02 22:13:11,675 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-11-02 22:13:11,681 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] [2021-11-02 22:13:11,683 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 22:13:11,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,725 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,725 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,725 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,732 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,733 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,733 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,736 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,737 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 10:13:11 BoogieIcfgContainer [2021-11-02 22:13:11,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 22:13:11,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:13:11,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:13:11,748 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:13:11,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:11:21" (3/4) ... [2021-11-02 22:13:11,752 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-02 22:13:11,788 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-02 22:13:11,790 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-02 22:13:11,792 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 22:13:11,793 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 22:13:11,830 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((a24 == 1 && a21 <= 7) && 49 + a12 <= 0) && a15 == 8) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a24 == 1)) || (((a24 == 1 && a15 <= 7) && 8 <= a21) && a21 <= 8)) || (((a24 == 1 && 9 <= a15) && a12 <= 95434) && 95380 < a12)) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && a12 + 526767 <= 0)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || (((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && a12 <= 76) && 0 < a12 + 43)) || (((9 <= a21 && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || (((a24 == 1 && 80 < a12) && a21 == 6) && 7 == a15)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a21 <= 6)) || (a24 == 1 && (((((a12 <= 76 && 8 <= a21) && a21 <= 8) && 0 < a12 + 43) && a15 == 8) || (((a12 <= 11 && 7 <= a21) && 0 < a12 + 43) && a15 == 8)))) || (((a24 == 1 && a15 <= 8) && a21 <= 7) && (\exists v_~a12~0_444 : int :: (95380 < v_~a12~0_444 && 546123 + a12 <= v_~a12~0_444 * 9 / 10) && v_~a12~0_444 <= 95434))) || ((a24 == 1 && 80 < a12) && 10 <= a21)) || (((a24 == 1 && 7 <= a21) && 9 <= a15) && 80 < a12)) || ((((a12 <= 72 && a24 == 1) && 8 <= a21) && a21 <= 8) && 18 < a12)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && a12 <= 10) && 0 < a12 + 43)) || ((((a24 == 1 && a12 <= 10) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a12 <= 73282)) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a21 <= 6)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && 49 + a12 <= 0) [2021-11-02 22:13:11,834 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((a24 == 1 && a21 <= 7) && 49 + a12 <= 0) && a15 == 8) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a24 == 1)) || (((a24 == 1 && a15 <= 7) && 8 <= a21) && a21 <= 8)) || (((a24 == 1 && 9 <= a15) && a12 <= 95434) && 95380 < a12)) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && a12 + 526767 <= 0)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || (((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && a12 <= 76) && 0 < a12 + 43)) || (((9 <= a21 && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || (((a24 == 1 && 80 < a12) && a21 == 6) && 7 == a15)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a21 <= 6)) || (a24 == 1 && (((((a12 <= 76 && 8 <= a21) && a21 <= 8) && 0 < a12 + 43) && a15 == 8) || (((a12 <= 11 && 7 <= a21) && 0 < a12 + 43) && a15 == 8)))) || (((a24 == 1 && a15 <= 8) && a21 <= 7) && (\exists v_~a12~0_444 : int :: (95380 < v_~a12~0_444 && 546123 + a12 <= v_~a12~0_444 * 9 / 10) && v_~a12~0_444 <= 95434))) || ((a24 == 1 && 80 < a12) && 10 <= a21)) || (((a24 == 1 && 7 <= a21) && 9 <= a15) && 80 < a12)) || ((((a12 <= 72 && a24 == 1) && 8 <= a21) && a21 <= 8) && 18 < a12)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && a12 <= 10) && 0 < a12 + 43)) || ((((a24 == 1 && a12 <= 10) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a12 <= 73282)) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a21 <= 6)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && 49 + a12 <= 0) [2021-11-02 22:13:11,974 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:13:11,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:13:11,976 INFO L168 Benchmark]: Toolchain (without parser) took 112817.40 ms. Allocated memory was 102.8 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 60.1 MB in the beginning and 1.9 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.2 GB. Max. memory is 16.1 GB. [2021-11-02 22:13:11,977 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 102.8 MB. Free memory was 78.3 MB in the beginning and 78.2 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:13:11,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.83 ms. Allocated memory is still 102.8 MB. Free memory was 59.8 MB in the beginning and 55.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:13:11,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.78 ms. Allocated memory is still 102.8 MB. Free memory was 55.6 MB in the beginning and 46.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:13:11,979 INFO L168 Benchmark]: Boogie Preprocessor took 135.44 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 46.0 MB in the beginning and 93.4 MB in the end (delta: -47.4 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2021-11-02 22:13:11,979 INFO L168 Benchmark]: RCFGBuilder took 1581.78 ms. Allocated memory is still 123.7 MB. Free memory was 93.4 MB in the beginning and 65.4 MB in the end (delta: 28.0 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.1 GB. [2021-11-02 22:13:11,980 INFO L168 Benchmark]: TraceAbstraction took 109917.00 ms. Allocated memory was 123.7 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 65.4 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.1 GB. [2021-11-02 22:13:11,980 INFO L168 Benchmark]: Witness Printer took 226.53 ms. Allocated memory is still 3.1 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-02 22:13:11,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 102.8 MB. Free memory was 78.3 MB in the beginning and 78.2 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 819.83 ms. Allocated memory is still 102.8 MB. Free memory was 59.8 MB in the beginning and 55.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 127.78 ms. Allocated memory is still 102.8 MB. Free memory was 55.6 MB in the beginning and 46.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 135.44 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 46.0 MB in the beginning and 93.4 MB in the end (delta: -47.4 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1581.78 ms. Allocated memory is still 123.7 MB. Free memory was 93.4 MB in the beginning and 65.4 MB in the end (delta: 28.0 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 109917.00 ms. Allocated memory was 123.7 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 65.4 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.1 GB. * Witness Printer took 226.53 ms. Allocated memory is still 3.1 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] * 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: 185]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 109.7s, OverallIterations: 26, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 22.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3310 SDtfs, 3833 SDslu, 295 SDs, 0 SdLazy, 22027 SolverSat, 1296 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14770 GetRequests, 14672 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5166occurred in iteration=23, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 26 MinimizatonAttempts, 7002 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 89 NumberOfFragments, 849 HoareAnnotationTreeSize, 3 FomulaSimplifications, 28064 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 9004 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.4s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 49.5s InterpolantComputationTime, 35872 NumberOfCodeBlocks, 35872 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 35832 ConstructedInterpolants, 55 QuantifiedInterpolants, 111461 SizeOfPredicates, 1 NumberOfNonLiveVariables, 18211 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 40 InterpolantComputations, 23 PerfectInterpolantSequences, 142517/146588 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: 30]: Loop Invariant [2021-11-02 22:13:11,997 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,998 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,998 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:11,999 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:12,000 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:12,001 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((a24 == 1 && a21 <= 7) && 49 + a12 <= 0) && a15 == 8) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a24 == 1)) || (((a24 == 1 && a15 <= 7) && 8 <= a21) && a21 <= 8)) || (((a24 == 1 && 9 <= a15) && a12 <= 95434) && 95380 < a12)) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && a12 + 526767 <= 0)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || (((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && a12 <= 76) && 0 < a12 + 43)) || (((9 <= a21 && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || (((a24 == 1 && 80 < a12) && a21 == 6) && 7 == a15)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a21 <= 6)) || (a24 == 1 && (((((a12 <= 76 && 8 <= a21) && a21 <= 8) && 0 < a12 + 43) && a15 == 8) || (((a12 <= 11 && 7 <= a21) && 0 < a12 + 43) && a15 == 8)))) || (((a24 == 1 && a15 <= 8) && a21 <= 7) && (\exists v_~a12~0_444 : int :: (95380 < v_~a12~0_444 && 546123 + a12 <= v_~a12~0_444 * 9 / 10) && v_~a12~0_444 <= 95434))) || ((a24 == 1 && 80 < a12) && 10 <= a21)) || (((a24 == 1 && 7 <= a21) && 9 <= a15) && 80 < a12)) || ((((a12 <= 72 && a24 == 1) && 8 <= a21) && a21 <= 8) && 18 < a12)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && a12 <= 10) && 0 < a12 + 43)) || ((((a24 == 1 && a12 <= 10) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a12 <= 73282)) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a21 <= 6)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && 49 + a12 <= 0) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant [2021-11-02 22:13:12,003 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:12,004 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:12,004 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:12,005 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:12,005 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-11-02 22:13:12,005 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((a24 == 1 && a21 <= 7) && 49 + a12 <= 0) && a15 == 8) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a24 == 1)) || (((a24 == 1 && a15 <= 7) && 8 <= a21) && a21 <= 8)) || (((a24 == 1 && 9 <= a15) && a12 <= 95434) && 95380 < a12)) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && a12 + 526767 <= 0)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || (((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && a12 <= 76) && 0 < a12 + 43)) || (((9 <= a21 && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || (((a24 == 1 && 80 < a12) && a21 == 6) && 7 == a15)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a21 <= 6)) || (a24 == 1 && (((((a12 <= 76 && 8 <= a21) && a21 <= 8) && 0 < a12 + 43) && a15 == 8) || (((a12 <= 11 && 7 <= a21) && 0 < a12 + 43) && a15 == 8)))) || (((a24 == 1 && a15 <= 8) && a21 <= 7) && (\exists v_~a12~0_444 : int :: (95380 < v_~a12~0_444 && 546123 + a12 <= v_~a12~0_444 * 9 / 10) && v_~a12~0_444 <= 95434))) || ((a24 == 1 && 80 < a12) && 10 <= a21)) || (((a24 == 1 && 7 <= a21) && 9 <= a15) && 80 < a12)) || ((((a12 <= 72 && a24 == 1) && 8 <= a21) && a21 <= 8) && 18 < a12)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && a12 <= 10) && 0 < a12 + 43)) || ((((a24 == 1 && a12 <= 10) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a12 <= 73282)) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a21 <= 6)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && 49 + a12 <= 0) RESULT: Ultimate proved your program to be correct! [2021-11-02 22:13:12,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdd194a-b69d-466e-b11b-de830552ca95/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE