./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label46.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label46.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt --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 e24e8d0d826390a3e8204259c4169e780de54704 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:12:54,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:12:54,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:12:54,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:12:54,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:12:54,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:12:54,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:12:54,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:12:54,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:12:54,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:12:54,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:12:54,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:12:54,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:12:54,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:12:54,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:12:54,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:12:54,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:12:54,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:12:54,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:12:54,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:12:54,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:12:54,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:12:54,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:12:54,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:12:54,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:12:54,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:12:54,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:12:54,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:12:54,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:12:54,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:12:54,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:12:54,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:12:54,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:12:54,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:12:54,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:12:54,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:12:54,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:12:54,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:12:54,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:12:54,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:12:54,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:12:54,251 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:12:54,282 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:12:54,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:12:54,288 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:12:54,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:12:54,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:12:54,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:12:54,291 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:12:54,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:12:54,292 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:12:54,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:12:54,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:12:54,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:12:54,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:12:54,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:12:54,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:12:54,296 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:12:54,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:12:54,297 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:12:54,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:12:54,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:12:54,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:12:54,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:12:54,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:12:54,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:12:54,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:12:54,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:12:54,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:12:54,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:12:54,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:12:54,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:12:54,303 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_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e24e8d0d826390a3e8204259c4169e780de54704 [2021-10-13 01:12:54,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:12:54,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:12:54,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:12:54,707 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:12:54,708 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:12:54,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/eca-rers2012/Problem03_label46.c [2021-10-13 01:12:54,827 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/data/3ab5aa5af/8a4f2b568f03417c95f1d491ce8272da/FLAGb98f0d305 [2021-10-13 01:12:55,673 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:12:55,674 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/sv-benchmarks/c/eca-rers2012/Problem03_label46.c [2021-10-13 01:12:55,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/data/3ab5aa5af/8a4f2b568f03417c95f1d491ce8272da/FLAGb98f0d305 [2021-10-13 01:12:55,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/data/3ab5aa5af/8a4f2b568f03417c95f1d491ce8272da [2021-10-13 01:12:55,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:12:55,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:12:55,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:12:55,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:12:55,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:12:55,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:12:55" (1/1) ... [2021-10-13 01:12:55,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f9d328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:55, skipping insertion in model container [2021-10-13 01:12:55,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:12:55" (1/1) ... [2021-10-13 01:12:55,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:12:55,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:12:56,671 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_26057520-be18-49c2-bda1-66e35d1bbbec/sv-benchmarks/c/eca-rers2012/Problem03_label46.c[59207,59220] [2021-10-13 01:12:56,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:12:56,715 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:12:57,138 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_26057520-be18-49c2-bda1-66e35d1bbbec/sv-benchmarks/c/eca-rers2012/Problem03_label46.c[59207,59220] [2021-10-13 01:12:57,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:12:57,209 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:12:57,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:57 WrapperNode [2021-10-13 01:12:57,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:12:57,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:12:57,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:12:57,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:12:57,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:57" (1/1) ... [2021-10-13 01:12:57,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:57" (1/1) ... [2021-10-13 01:12:57,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:12:57,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:12:57,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:12:57,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:12:57,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:57" (1/1) ... [2021-10-13 01:12:57,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:57" (1/1) ... [2021-10-13 01:12:57,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:57" (1/1) ... [2021-10-13 01:12:57,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:57" (1/1) ... [2021-10-13 01:12:57,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:57" (1/1) ... [2021-10-13 01:12:57,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:57" (1/1) ... [2021-10-13 01:12:57,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:57" (1/1) ... [2021-10-13 01:12:57,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:12:57,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:12:57,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:12:57,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:12:57,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:57" (1/1) ... [2021-10-13 01:12:57,683 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:12:57,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:12:57,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:12:57,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:12:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:12:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:12:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:12:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:13:00,140 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:13:00,140 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 01:13:00,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:13:00 BoogieIcfgContainer [2021-10-13 01:13:00,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:13:00,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:13:00,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:13:00,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:13:00,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:12:55" (1/3) ... [2021-10-13 01:13:00,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577a30f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:13:00, skipping insertion in model container [2021-10-13 01:13:00,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:57" (2/3) ... [2021-10-13 01:13:00,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577a30f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:13:00, skipping insertion in model container [2021-10-13 01:13:00,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:13:00" (3/3) ... [2021-10-13 01:13:00,158 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label46.c [2021-10-13 01:13:00,165 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:13:00,165 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:13:00,229 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:13:00,237 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 01:13:00,238 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:13:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:00,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-10-13 01:13:00,287 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:00,288 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:00,289 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:00,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:00,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1730728613, now seen corresponding path program 1 times [2021-10-13 01:13:00,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:00,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007928659] [2021-10-13 01:13:00,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:00,309 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:01,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:13:01,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:01,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007928659] [2021-10-13 01:13:01,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007928659] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:01,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:01,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:13:01,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91972255] [2021-10-13 01:13:01,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:01,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:01,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:01,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:01,132 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 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 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:02,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:02,756 INFO L93 Difference]: Finished difference Result 835 states and 1478 transitions. [2021-10-13 01:13:02,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:02,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2021-10-13 01:13:02,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:02,781 INFO L225 Difference]: With dead ends: 835 [2021-10-13 01:13:02,781 INFO L226 Difference]: Without dead ends: 456 [2021-10-13 01:13:02,787 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:02,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-10-13 01:13:02,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 451. [2021-10-13 01:13:02,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 450 states have (on average 1.5622222222222222) internal successors, (703), 450 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:02,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 703 transitions. [2021-10-13 01:13:02,873 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 703 transitions. Word has length 185 [2021-10-13 01:13:02,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:02,875 INFO L470 AbstractCegarLoop]: Abstraction has 451 states and 703 transitions. [2021-10-13 01:13:02,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:02,876 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 703 transitions. [2021-10-13 01:13:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-10-13 01:13:02,884 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:02,884 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:02,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:13:02,885 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:02,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:02,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1408358515, now seen corresponding path program 1 times [2021-10-13 01:13:02,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:02,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668867131] [2021-10-13 01:13:02,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:02,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:13:03,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:03,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668867131] [2021-10-13 01:13:03,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668867131] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:03,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:03,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:13:03,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72363272] [2021-10-13 01:13:03,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:03,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:03,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:03,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:03,018 INFO L87 Difference]: Start difference. First operand 451 states and 703 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 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) [2021-10-13 01:13:04,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:04,288 INFO L93 Difference]: Finished difference Result 1328 states and 2075 transitions. [2021-10-13 01:13:04,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:04,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 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 191 [2021-10-13 01:13:04,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:04,297 INFO L225 Difference]: With dead ends: 1328 [2021-10-13 01:13:04,297 INFO L226 Difference]: Without dead ends: 879 [2021-10-13 01:13:04,301 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:04,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2021-10-13 01:13:04,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 878. [2021-10-13 01:13:04,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 877 states have (on average 1.4800456100342074) internal successors, (1298), 877 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:04,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1298 transitions. [2021-10-13 01:13:04,384 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1298 transitions. Word has length 191 [2021-10-13 01:13:04,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:04,385 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 1298 transitions. [2021-10-13 01:13:04,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 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) [2021-10-13 01:13:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1298 transitions. [2021-10-13 01:13:04,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-10-13 01:13:04,405 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:04,405 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:04,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 01:13:04,406 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:04,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:04,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1459742194, now seen corresponding path program 1 times [2021-10-13 01:13:04,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:04,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022947912] [2021-10-13 01:13:04,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:04,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 01:13:04,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:04,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022947912] [2021-10-13 01:13:04,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022947912] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:04,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:04,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:13:04,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481608113] [2021-10-13 01:13:04,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:04,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:04,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:04,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:04,522 INFO L87 Difference]: Start difference. First operand 878 states and 1298 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:05,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:05,714 INFO L93 Difference]: Finished difference Result 2594 states and 3850 transitions. [2021-10-13 01:13:05,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:05,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 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 199 [2021-10-13 01:13:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:05,744 INFO L225 Difference]: With dead ends: 2594 [2021-10-13 01:13:05,745 INFO L226 Difference]: Without dead ends: 1718 [2021-10-13 01:13:05,747 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:05,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2021-10-13 01:13:05,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1696. [2021-10-13 01:13:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.447787610619469) internal successors, (2454), 1695 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:05,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2454 transitions. [2021-10-13 01:13:05,828 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2454 transitions. Word has length 199 [2021-10-13 01:13:05,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:05,829 INFO L470 AbstractCegarLoop]: Abstraction has 1696 states and 2454 transitions. [2021-10-13 01:13:05,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:05,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2454 transitions. [2021-10-13 01:13:05,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-10-13 01:13:05,841 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:05,841 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:05,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 01:13:05,842 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:05,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:05,845 INFO L82 PathProgramCache]: Analyzing trace with hash -157067481, now seen corresponding path program 1 times [2021-10-13 01:13:05,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:05,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693651379] [2021-10-13 01:13:05,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:05,848 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:06,043 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 01:13:06,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:06,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693651379] [2021-10-13 01:13:06,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693651379] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:06,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:06,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:13:06,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457473989] [2021-10-13 01:13:06,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:06,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:06,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:06,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:06,057 INFO L87 Difference]: Start difference. First operand 1696 states and 2454 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:07,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:07,264 INFO L93 Difference]: Finished difference Result 5033 states and 7290 transitions. [2021-10-13 01:13:07,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:07,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 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 207 [2021-10-13 01:13:07,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:07,287 INFO L225 Difference]: With dead ends: 5033 [2021-10-13 01:13:07,288 INFO L226 Difference]: Without dead ends: 3339 [2021-10-13 01:13:07,291 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:07,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3339 states. [2021-10-13 01:13:07,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3339 to 3334. [2021-10-13 01:13:07,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3333 states have (on average 1.383138313831383) internal successors, (4610), 3333 states have internal predecessors, (4610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:07,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4610 transitions. [2021-10-13 01:13:07,407 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4610 transitions. Word has length 207 [2021-10-13 01:13:07,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:07,408 INFO L470 AbstractCegarLoop]: Abstraction has 3334 states and 4610 transitions. [2021-10-13 01:13:07,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:07,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4610 transitions. [2021-10-13 01:13:07,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-10-13 01:13:07,418 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:07,419 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:07,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 01:13:07,420 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:07,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:07,423 INFO L82 PathProgramCache]: Analyzing trace with hash -694881176, now seen corresponding path program 1 times [2021-10-13 01:13:07,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:07,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813187797] [2021-10-13 01:13:07,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:07,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-13 01:13:07,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:07,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813187797] [2021-10-13 01:13:07,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813187797] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:07,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:07,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:13:07,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026819529] [2021-10-13 01:13:07,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:07,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:07,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:07,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:07,560 INFO L87 Difference]: Start difference. First operand 3334 states and 4610 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:08,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:08,784 INFO L93 Difference]: Finished difference Result 9727 states and 13466 transitions. [2021-10-13 01:13:08,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:08,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 213 [2021-10-13 01:13:08,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:08,832 INFO L225 Difference]: With dead ends: 9727 [2021-10-13 01:13:08,832 INFO L226 Difference]: Without dead ends: 6395 [2021-10-13 01:13:08,841 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:08,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6395 states. [2021-10-13 01:13:09,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6395 to 6390. [2021-10-13 01:13:09,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6390 states, 6389 states have (on average 1.2994208796368758) internal successors, (8302), 6389 states have internal predecessors, (8302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:09,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6390 states to 6390 states and 8302 transitions. [2021-10-13 01:13:09,127 INFO L78 Accepts]: Start accepts. Automaton has 6390 states and 8302 transitions. Word has length 213 [2021-10-13 01:13:09,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:09,128 INFO L470 AbstractCegarLoop]: Abstraction has 6390 states and 8302 transitions. [2021-10-13 01:13:09,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:09,129 INFO L276 IsEmpty]: Start isEmpty. Operand 6390 states and 8302 transitions. [2021-10-13 01:13:09,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-10-13 01:13:09,145 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:09,146 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:09,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 01:13:09,147 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:09,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:09,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1660718487, now seen corresponding path program 1 times [2021-10-13 01:13:09,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:09,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140682413] [2021-10-13 01:13:09,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:09,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 01:13:09,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:09,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140682413] [2021-10-13 01:13:09,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140682413] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:09,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:09,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:13:09,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261314380] [2021-10-13 01:13:09,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:09,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:09,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:09,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:09,266 INFO L87 Difference]: Start difference. First operand 6390 states and 8302 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:10,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:10,512 INFO L93 Difference]: Finished difference Result 14827 states and 19331 transitions. [2021-10-13 01:13:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:10,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 213 [2021-10-13 01:13:10,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:10,573 INFO L225 Difference]: With dead ends: 14827 [2021-10-13 01:13:10,574 INFO L226 Difference]: Without dead ends: 8439 [2021-10-13 01:13:10,586 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:10,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8439 states. [2021-10-13 01:13:10,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8439 to 8420. [2021-10-13 01:13:10,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8420 states, 8419 states have (on average 1.26737142178406) internal successors, (10670), 8419 states have internal predecessors, (10670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:10,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8420 states to 8420 states and 10670 transitions. [2021-10-13 01:13:10,883 INFO L78 Accepts]: Start accepts. Automaton has 8420 states and 10670 transitions. Word has length 213 [2021-10-13 01:13:10,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:10,885 INFO L470 AbstractCegarLoop]: Abstraction has 8420 states and 10670 transitions. [2021-10-13 01:13:10,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:10,886 INFO L276 IsEmpty]: Start isEmpty. Operand 8420 states and 10670 transitions. [2021-10-13 01:13:10,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-10-13 01:13:10,912 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:10,913 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:10,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 01:13:10,913 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:10,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:10,914 INFO L82 PathProgramCache]: Analyzing trace with hash 640316462, now seen corresponding path program 1 times [2021-10-13 01:13:10,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:10,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110676037] [2021-10-13 01:13:10,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:10,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:13:11,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:11,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110676037] [2021-10-13 01:13:11,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110676037] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:11,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:11,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:13:11,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654642502] [2021-10-13 01:13:11,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:13:11,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:11,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:13:11,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:13:11,083 INFO L87 Difference]: Start difference. First operand 8420 states and 10670 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:12,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:12,919 INFO L93 Difference]: Finished difference Result 16873 states and 21407 transitions. [2021-10-13 01:13:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:13:12,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 229 [2021-10-13 01:13:12,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:12,983 INFO L225 Difference]: With dead ends: 16873 [2021-10-13 01:13:12,984 INFO L226 Difference]: Without dead ends: 8455 [2021-10-13 01:13:12,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:13:13,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8455 states. [2021-10-13 01:13:13,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8455 to 8014. [2021-10-13 01:13:13,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8014 states, 8013 states have (on average 1.2694371646075129) internal successors, (10172), 8013 states have internal predecessors, (10172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:13,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8014 states to 8014 states and 10172 transitions. [2021-10-13 01:13:13,218 INFO L78 Accepts]: Start accepts. Automaton has 8014 states and 10172 transitions. Word has length 229 [2021-10-13 01:13:13,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:13,219 INFO L470 AbstractCegarLoop]: Abstraction has 8014 states and 10172 transitions. [2021-10-13 01:13:13,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:13,220 INFO L276 IsEmpty]: Start isEmpty. Operand 8014 states and 10172 transitions. [2021-10-13 01:13:13,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-10-13 01:13:13,241 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:13,242 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:13,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 01:13:13,243 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:13,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:13,243 INFO L82 PathProgramCache]: Analyzing trace with hash -699313053, now seen corresponding path program 1 times [2021-10-13 01:13:13,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:13,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981404034] [2021-10-13 01:13:13,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:13,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:13,380 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 56 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-13 01:13:13,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:13,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981404034] [2021-10-13 01:13:13,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981404034] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:13:13,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284184016] [2021-10-13 01:13:13,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:13,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:13:13,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:13:13,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:13:13,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 01:13:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:13,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:13:13,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:13:14,551 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-10-13 01:13:14,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284184016] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:14,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:13:14,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 01:13:14,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277813376] [2021-10-13 01:13:14,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:14,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:14,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:14,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:13:14,555 INFO L87 Difference]: Start difference. First operand 8014 states and 10172 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:15,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:15,746 INFO L93 Difference]: Finished difference Result 21712 states and 27677 transitions. [2021-10-13 01:13:15,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:15,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2021-10-13 01:13:15,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:15,782 INFO L225 Difference]: With dead ends: 21712 [2021-10-13 01:13:15,782 INFO L226 Difference]: Without dead ends: 13700 [2021-10-13 01:13:15,796 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:13:15,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13700 states. [2021-10-13 01:13:16,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13700 to 12885. [2021-10-13 01:13:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12885 states, 12884 states have (on average 1.2017230673703818) internal successors, (15483), 12884 states have internal predecessors, (15483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:16,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12885 states to 12885 states and 15483 transitions. [2021-10-13 01:13:16,130 INFO L78 Accepts]: Start accepts. Automaton has 12885 states and 15483 transitions. Word has length 236 [2021-10-13 01:13:16,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:16,131 INFO L470 AbstractCegarLoop]: Abstraction has 12885 states and 15483 transitions. [2021-10-13 01:13:16,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand 12885 states and 15483 transitions. [2021-10-13 01:13:16,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-10-13 01:13:16,161 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:16,162 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:16,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:13:16,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-13 01:13:16,381 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:16,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:16,382 INFO L82 PathProgramCache]: Analyzing trace with hash 568742382, now seen corresponding path program 1 times [2021-10-13 01:13:16,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:16,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946885652] [2021-10-13 01:13:16,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:16,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:16,566 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-13 01:13:16,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:16,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946885652] [2021-10-13 01:13:16,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946885652] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:16,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:16,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:13:16,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938659186] [2021-10-13 01:13:16,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:16,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:16,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:16,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:16,570 INFO L87 Difference]: Start difference. First operand 12885 states and 15483 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:17,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:17,890 INFO L93 Difference]: Finished difference Result 30880 states and 37039 transitions. [2021-10-13 01:13:17,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:17,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 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 239 [2021-10-13 01:13:17,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:17,935 INFO L225 Difference]: With dead ends: 30880 [2021-10-13 01:13:17,935 INFO L226 Difference]: Without dead ends: 17997 [2021-10-13 01:13:17,952 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:17,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17997 states. [2021-10-13 01:13:18,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17997 to 17987. [2021-10-13 01:13:18,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17987 states, 17986 states have (on average 1.189647503613922) internal successors, (21397), 17986 states have internal predecessors, (21397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:18,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17987 states to 17987 states and 21397 transitions. [2021-10-13 01:13:18,339 INFO L78 Accepts]: Start accepts. Automaton has 17987 states and 21397 transitions. Word has length 239 [2021-10-13 01:13:18,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:18,339 INFO L470 AbstractCegarLoop]: Abstraction has 17987 states and 21397 transitions. [2021-10-13 01:13:18,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:18,340 INFO L276 IsEmpty]: Start isEmpty. Operand 17987 states and 21397 transitions. [2021-10-13 01:13:18,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-10-13 01:13:18,381 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:18,382 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:18,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 01:13:18,383 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:18,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:18,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1246639075, now seen corresponding path program 1 times [2021-10-13 01:13:18,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:18,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833874945] [2021-10-13 01:13:18,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:18,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:18,508 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 01:13:18,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:18,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833874945] [2021-10-13 01:13:18,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833874945] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:18,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:18,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:13:18,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173139958] [2021-10-13 01:13:18,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:18,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:18,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:18,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:18,576 INFO L87 Difference]: Start difference. First operand 17987 states and 21397 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:19,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:19,256 INFO L93 Difference]: Finished difference Result 35120 states and 41821 transitions. [2021-10-13 01:13:19,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:19,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2021-10-13 01:13:19,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:19,299 INFO L225 Difference]: With dead ends: 35120 [2021-10-13 01:13:19,299 INFO L226 Difference]: Without dead ends: 17541 [2021-10-13 01:13:19,321 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:19,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17541 states. [2021-10-13 01:13:19,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17541 to 17541. [2021-10-13 01:13:19,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17541 states, 17540 states have (on average 1.176054732041049) internal successors, (20628), 17540 states have internal predecessors, (20628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:19,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17541 states to 17541 states and 20628 transitions. [2021-10-13 01:13:19,813 INFO L78 Accepts]: Start accepts. Automaton has 17541 states and 20628 transitions. Word has length 246 [2021-10-13 01:13:19,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:19,814 INFO L470 AbstractCegarLoop]: Abstraction has 17541 states and 20628 transitions. [2021-10-13 01:13:19,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:19,814 INFO L276 IsEmpty]: Start isEmpty. Operand 17541 states and 20628 transitions. [2021-10-13 01:13:19,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-10-13 01:13:19,852 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:19,852 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:19,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 01:13:19,853 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:19,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:19,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1611666094, now seen corresponding path program 1 times [2021-10-13 01:13:19,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:19,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293907434] [2021-10-13 01:13:19,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:19,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 72 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-10-13 01:13:20,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:20,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293907434] [2021-10-13 01:13:20,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293907434] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:13:20,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640121318] [2021-10-13 01:13:20,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:20,006 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:13:20,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:13:20,011 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:13:20,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 01:13:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:20,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:13:20,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:13:21,172 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 01:13:21,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640121318] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:21,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:13:21,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 01:13:21,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070347086] [2021-10-13 01:13:21,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:21,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:21,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:21,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:13:21,175 INFO L87 Difference]: Start difference. First operand 17541 states and 20628 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:22,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:22,395 INFO L93 Difference]: Finished difference Result 40966 states and 48805 transitions. [2021-10-13 01:13:22,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:22,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 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 252 [2021-10-13 01:13:22,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:22,451 INFO L225 Difference]: With dead ends: 40966 [2021-10-13 01:13:22,451 INFO L226 Difference]: Without dead ends: 23630 [2021-10-13 01:13:22,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:13:22,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23630 states. [2021-10-13 01:13:22,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23630 to 23221. [2021-10-13 01:13:22,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23221 states, 23220 states have (on average 1.1512489233419465) internal successors, (26732), 23220 states have internal predecessors, (26732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:22,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23221 states to 23221 states and 26732 transitions. [2021-10-13 01:13:22,991 INFO L78 Accepts]: Start accepts. Automaton has 23221 states and 26732 transitions. Word has length 252 [2021-10-13 01:13:22,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:22,992 INFO L470 AbstractCegarLoop]: Abstraction has 23221 states and 26732 transitions. [2021-10-13 01:13:22,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:22,992 INFO L276 IsEmpty]: Start isEmpty. Operand 23221 states and 26732 transitions. [2021-10-13 01:13:23,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-10-13 01:13:23,043 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:23,043 INFO L512 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:23,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:13:23,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:13:23,263 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:23,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:23,264 INFO L82 PathProgramCache]: Analyzing trace with hash -865561927, now seen corresponding path program 1 times [2021-10-13 01:13:23,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:23,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076100899] [2021-10-13 01:13:23,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:23,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:23,576 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-10-13 01:13:23,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:23,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076100899] [2021-10-13 01:13:23,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076100899] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:23,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:23,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:13:23,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239622164] [2021-10-13 01:13:23,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:23,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:23,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:23,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:23,581 INFO L87 Difference]: Start difference. First operand 23221 states and 26732 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 2 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:24,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:24,754 INFO L93 Difference]: Finished difference Result 52766 states and 61174 transitions. [2021-10-13 01:13:24,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:24,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 2 states have internal predecessors, (262), 0 states have call successors, (0), 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 273 [2021-10-13 01:13:24,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:24,815 INFO L225 Difference]: With dead ends: 52766 [2021-10-13 01:13:24,815 INFO L226 Difference]: Without dead ends: 29750 [2021-10-13 01:13:24,827 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:24,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29750 states. [2021-10-13 01:13:25,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29750 to 28714. [2021-10-13 01:13:25,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28714 states, 28713 states have (on average 1.163236164803399) internal successors, (33400), 28713 states have internal predecessors, (33400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:25,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28714 states to 28714 states and 33400 transitions. [2021-10-13 01:13:25,495 INFO L78 Accepts]: Start accepts. Automaton has 28714 states and 33400 transitions. Word has length 273 [2021-10-13 01:13:25,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:25,496 INFO L470 AbstractCegarLoop]: Abstraction has 28714 states and 33400 transitions. [2021-10-13 01:13:25,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 2 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:25,496 INFO L276 IsEmpty]: Start isEmpty. Operand 28714 states and 33400 transitions. [2021-10-13 01:13:25,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-10-13 01:13:25,533 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:25,533 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:25,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 01:13:25,534 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:25,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:25,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1156587011, now seen corresponding path program 1 times [2021-10-13 01:13:25,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:25,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413725853] [2021-10-13 01:13:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:25,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-13 01:13:25,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:25,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413725853] [2021-10-13 01:13:25,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413725853] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:25,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:13:25,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:13:25,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937237416] [2021-10-13 01:13:25,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:25,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:25,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:25,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:25,840 INFO L87 Difference]: Start difference. First operand 28714 states and 33400 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:27,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:27,047 INFO L93 Difference]: Finished difference Result 52732 states and 61187 transitions. [2021-10-13 01:13:27,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:27,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 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 278 [2021-10-13 01:13:27,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:27,107 INFO L225 Difference]: With dead ends: 52732 [2021-10-13 01:13:27,107 INFO L226 Difference]: Without dead ends: 24223 [2021-10-13 01:13:27,128 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:13:27,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24223 states. [2021-10-13 01:13:27,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24223 to 24222. [2021-10-13 01:13:27,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24222 states, 24221 states have (on average 1.1302588662730688) internal successors, (27376), 24221 states have internal predecessors, (27376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:27,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24222 states to 24222 states and 27376 transitions. [2021-10-13 01:13:27,611 INFO L78 Accepts]: Start accepts. Automaton has 24222 states and 27376 transitions. Word has length 278 [2021-10-13 01:13:27,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:27,611 INFO L470 AbstractCegarLoop]: Abstraction has 24222 states and 27376 transitions. [2021-10-13 01:13:27,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:27,612 INFO L276 IsEmpty]: Start isEmpty. Operand 24222 states and 27376 transitions. [2021-10-13 01:13:27,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-10-13 01:13:27,642 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:27,642 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:27,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 01:13:27,643 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:27,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:27,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1813845409, now seen corresponding path program 1 times [2021-10-13 01:13:27,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:27,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982540970] [2021-10-13 01:13:27,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:27,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:27,982 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 138 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-10-13 01:13:27,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:27,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982540970] [2021-10-13 01:13:27,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982540970] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:13:27,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896884786] [2021-10-13 01:13:27,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:27,984 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:13:27,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:13:27,987 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:13:28,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 01:13:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:28,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:13:28,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:13:29,547 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-13 01:13:29,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896884786] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:29,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:13:29,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 01:13:29,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012921539] [2021-10-13 01:13:29,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:29,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:29,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:29,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:13:29,557 INFO L87 Difference]: Start difference. First operand 24222 states and 27376 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:30,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:30,589 INFO L93 Difference]: Finished difference Result 48242 states and 54532 transitions. [2021-10-13 01:13:30,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:30,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 320 [2021-10-13 01:13:30,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:30,628 INFO L225 Difference]: With dead ends: 48242 [2021-10-13 01:13:30,628 INFO L226 Difference]: Without dead ends: 24225 [2021-10-13 01:13:30,646 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.9ms TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:13:30,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24225 states. [2021-10-13 01:13:31,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24225 to 24019. [2021-10-13 01:13:31,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24019 states, 24018 states have (on average 1.123240902656341) internal successors, (26978), 24018 states have internal predecessors, (26978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:31,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24019 states to 24019 states and 26978 transitions. [2021-10-13 01:13:31,178 INFO L78 Accepts]: Start accepts. Automaton has 24019 states and 26978 transitions. Word has length 320 [2021-10-13 01:13:31,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:31,179 INFO L470 AbstractCegarLoop]: Abstraction has 24019 states and 26978 transitions. [2021-10-13 01:13:31,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:31,179 INFO L276 IsEmpty]: Start isEmpty. Operand 24019 states and 26978 transitions. [2021-10-13 01:13:31,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-10-13 01:13:31,282 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:31,283 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:31,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:13:31,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:13:31,506 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:31,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:31,507 INFO L82 PathProgramCache]: Analyzing trace with hash -286357932, now seen corresponding path program 1 times [2021-10-13 01:13:31,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:31,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521397253] [2021-10-13 01:13:31,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:31,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:31,851 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 167 proven. 6 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2021-10-13 01:13:31,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:31,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521397253] [2021-10-13 01:13:31,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521397253] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:13:31,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643023226] [2021-10-13 01:13:31,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:31,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:13:31,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:13:31,854 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:13:31,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 01:13:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:32,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:13:32,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:13:33,127 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-10-13 01:13:33,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643023226] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:33,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:13:33,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 01:13:33,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862826792] [2021-10-13 01:13:33,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:33,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:33,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:33,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:13:33,130 INFO L87 Difference]: Start difference. First operand 24019 states and 26978 transitions. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:34,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:34,069 INFO L93 Difference]: Finished difference Result 46625 states and 52367 transitions. [2021-10-13 01:13:34,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:34,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 343 [2021-10-13 01:13:34,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:34,097 INFO L225 Difference]: With dead ends: 46625 [2021-10-13 01:13:34,097 INFO L226 Difference]: Without dead ends: 22811 [2021-10-13 01:13:34,110 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.2ms TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:13:34,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22811 states. [2021-10-13 01:13:34,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22811 to 22801. [2021-10-13 01:13:34,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22801 states, 22800 states have (on average 1.1169736842105262) internal successors, (25467), 22800 states have internal predecessors, (25467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22801 states to 22801 states and 25467 transitions. [2021-10-13 01:13:34,596 INFO L78 Accepts]: Start accepts. Automaton has 22801 states and 25467 transitions. Word has length 343 [2021-10-13 01:13:34,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:34,597 INFO L470 AbstractCegarLoop]: Abstraction has 22801 states and 25467 transitions. [2021-10-13 01:13:34,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:34,598 INFO L276 IsEmpty]: Start isEmpty. Operand 22801 states and 25467 transitions. [2021-10-13 01:13:34,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-10-13 01:13:34,638 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:13:34,639 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:13:34,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-13 01:13:34,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-13 01:13:34,843 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:13:34,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:13:34,843 INFO L82 PathProgramCache]: Analyzing trace with hash 2051678834, now seen corresponding path program 1 times [2021-10-13 01:13:34,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:13:34,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27737055] [2021-10-13 01:13:34,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:34,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:13:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 183 proven. 6 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-10-13 01:13:35,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:13:35,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27737055] [2021-10-13 01:13:35,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27737055] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:13:35,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80365768] [2021-10-13 01:13:35,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:13:35,205 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:13:35,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:13:35,211 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:13:35,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 01:13:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:13:35,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 01:13:35,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:13:37,035 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-10-13 01:13:37,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80365768] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:13:37,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:13:37,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 01:13:37,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420036342] [2021-10-13 01:13:37,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:13:37,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:13:37,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:13:37,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:13:37,038 INFO L87 Difference]: Start difference. First operand 22801 states and 25467 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:13:37,892 INFO L93 Difference]: Finished difference Result 45808 states and 51145 transitions. [2021-10-13 01:13:37,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:13:37,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 360 [2021-10-13 01:13:37,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:13:37,894 INFO L225 Difference]: With dead ends: 45808 [2021-10-13 01:13:37,894 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 01:13:37,909 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.7ms TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:13:37,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 01:13:37,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 01:13:37,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:37,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:13:37,910 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 360 [2021-10-13 01:13:37,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:13:37,911 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:13:37,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:13:37,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:13:37,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 01:13:37,914 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:13:37,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:13:38,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-13 01:13:38,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 01:13:38,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:13:38,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:13:38,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:13:39,022 INFO L857 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2021-10-13 01:13:39,022 INFO L857 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-10-13 01:13:39,022 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,023 INFO L857 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2021-10-13 01:13:39,023 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,023 INFO L857 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,023 INFO L857 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,023 INFO L857 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,023 INFO L857 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,023 INFO L857 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,023 INFO L857 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,024 INFO L857 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,024 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,025 INFO L857 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,025 INFO L857 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2021-10-13 01:13:39,025 INFO L857 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2021-10-13 01:13:39,025 INFO L857 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2021-10-13 01:13:39,025 INFO L857 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,025 INFO L857 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2021-10-13 01:13:39,026 INFO L857 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2021-10-13 01:13:39,026 INFO L857 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,026 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,026 INFO L857 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,026 INFO L857 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,027 INFO L857 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,027 INFO L857 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,027 INFO L857 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,027 INFO L857 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,027 INFO L857 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,027 INFO L857 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2021-10-13 01:13:39,027 INFO L857 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2021-10-13 01:13:39,027 INFO L857 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2021-10-13 01:13:39,028 INFO L857 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,028 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,028 INFO L857 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,028 INFO L857 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,028 INFO L857 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,028 INFO L857 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,028 INFO L857 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2021-10-13 01:13:39,028 INFO L857 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2021-10-13 01:13:39,029 INFO L857 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,029 INFO L857 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2021-10-13 01:13:39,029 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,029 INFO L857 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-10-13 01:13:39,029 INFO L857 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2021-10-13 01:13:39,029 INFO L857 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,029 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,030 INFO L857 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,030 INFO L857 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,030 INFO L857 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,030 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,030 INFO L857 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,030 INFO L857 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2021-10-13 01:13:39,030 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,030 INFO L857 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2021-10-13 01:13:39,031 INFO L857 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2021-10-13 01:13:39,031 INFO L857 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,031 INFO L857 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,031 INFO L857 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,031 INFO L857 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,031 INFO L857 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2021-10-13 01:13:39,031 INFO L857 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2021-10-13 01:13:39,032 INFO L857 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,032 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,032 INFO L857 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,032 INFO L857 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,032 INFO L857 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,032 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,032 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,032 INFO L857 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,033 INFO L857 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,033 INFO L857 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,033 INFO L857 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2021-10-13 01:13:39,033 INFO L857 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2021-10-13 01:13:39,033 INFO L857 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2021-10-13 01:13:39,033 INFO L857 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,033 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,033 INFO L857 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,034 INFO L857 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,034 INFO L857 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,034 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,034 INFO L857 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2021-10-13 01:13:39,034 INFO L857 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2021-10-13 01:13:39,034 INFO L857 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2021-10-13 01:13:39,034 INFO L857 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,035 INFO L857 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,035 INFO L857 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,035 INFO L857 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,035 INFO L857 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,035 INFO L857 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,035 INFO L857 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2021-10-13 01:13:39,035 INFO L857 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2021-10-13 01:13:39,035 INFO L857 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2021-10-13 01:13:39,036 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,036 INFO L857 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,036 INFO L857 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,036 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2021-10-13 01:13:39,036 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,036 INFO L857 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2021-10-13 01:13:39,036 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 01:13:39,037 INFO L857 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,037 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,037 INFO L857 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2021-10-13 01:13:39,037 INFO L857 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2021-10-13 01:13:39,037 INFO L857 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,037 INFO L857 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,037 INFO L857 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,037 INFO L857 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,038 INFO L857 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,038 INFO L857 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,038 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,038 INFO L857 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2021-10-13 01:13:39,038 INFO L857 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2021-10-13 01:13:39,038 INFO L857 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2021-10-13 01:13:39,038 INFO L857 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2021-10-13 01:13:39,039 INFO L857 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2021-10-13 01:13:39,039 INFO L857 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,039 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,039 INFO L857 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,040 INFO L857 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,040 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,040 INFO L857 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,040 INFO L857 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,040 INFO L857 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,040 INFO L857 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,041 INFO L857 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,041 INFO L857 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2021-10-13 01:13:39,041 INFO L857 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2021-10-13 01:13:39,041 INFO L857 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2021-10-13 01:13:39,041 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,041 INFO L857 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,042 INFO L857 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,042 INFO L857 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,042 INFO L857 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,042 INFO L857 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,042 INFO L857 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,042 INFO L857 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,043 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,043 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 01:13:39,043 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1600) no Hoare annotation was computed. [2021-10-13 01:13:39,044 INFO L857 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2021-10-13 01:13:39,044 INFO L857 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2021-10-13 01:13:39,044 INFO L857 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2021-10-13 01:13:39,044 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-10-13 01:13:39,044 INFO L857 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2021-10-13 01:13:39,045 INFO L857 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,045 INFO L857 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,045 INFO L857 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,045 INFO L857 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,045 INFO L857 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,045 INFO L857 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,046 INFO L857 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,046 INFO L857 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,046 INFO L857 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2021-10-13 01:13:39,046 INFO L857 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2021-10-13 01:13:39,046 INFO L857 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2021-10-13 01:13:39,047 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,047 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,047 INFO L857 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,047 INFO L857 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2021-10-13 01:13:39,047 INFO L857 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2021-10-13 01:13:39,048 INFO L857 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,048 INFO L857 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,048 INFO L857 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,048 INFO L857 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2021-10-13 01:13:39,048 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,048 INFO L857 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2021-10-13 01:13:39,049 INFO L857 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,049 INFO L857 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2021-10-13 01:13:39,049 INFO L857 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,049 INFO L857 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,049 INFO L857 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2021-10-13 01:13:39,050 INFO L857 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2021-10-13 01:13:39,050 INFO L857 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2021-10-13 01:13:39,050 INFO L857 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2021-10-13 01:13:39,050 INFO L857 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2021-10-13 01:13:39,050 INFO L857 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2021-10-13 01:13:39,050 INFO L857 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2021-10-13 01:13:39,051 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,051 INFO L857 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,051 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,051 INFO L853 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse1 (<= ~a3~0 0)) (.cse8 (= ~a12~0 ~a11~0)) (.cse2 (= ~a11~0 0)) (.cse10 (<= 2 ~a3~0)) (.cse4 (<= ~a26~0 0)) (.cse6 (<= ~a27~0 0)) (.cse5 (<= ~a6~0 0)) (.cse9 (= ~a26~0 1)) (.cse0 (= ~a5~0 1)) (.cse7 (= ~a11~0 1)) (.cse3 (= ~a27~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse5) (and .cse0 .cse4 .cse2 .cse6) (and .cse0 .cse1 .cse7 .cse3) (and .cse0 (<= ~a3~0 1) .cse8 .cse4 .cse7 .cse6) (and .cse9 .cse0 .cse2 .cse3) (and .cse0 .cse4 .cse7 .cse3 .cse5) (and .cse9 .cse0 .cse2 .cse6) (and .cse0 .cse10 .cse4 .cse7 .cse3) (and .cse9 .cse0 .cse7 .cse6) (and .cse0 .cse4 .cse2 .cse3) (and .cse0 .cse10 .cse8 .cse2 .cse3) (and .cse0 .cse10 .cse4 .cse7 .cse6 .cse5) (and .cse9 .cse0 .cse7 .cse3))) [2021-10-13 01:13:39,052 INFO L857 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,052 INFO L857 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,052 INFO L857 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,052 INFO L857 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2021-10-13 01:13:39,052 INFO L857 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-10-13 01:13:39,053 INFO L857 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,053 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,053 INFO L857 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,053 INFO L860 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-10-13 01:13:39,053 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,053 INFO L857 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,054 INFO L857 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,054 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,054 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,054 INFO L857 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,054 INFO L857 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2021-10-13 01:13:39,054 INFO L857 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2021-10-13 01:13:39,055 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,055 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,055 INFO L857 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,055 INFO L857 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,055 INFO L857 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,055 INFO L857 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,056 INFO L857 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,056 INFO L857 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,056 INFO L857 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,056 INFO L857 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2021-10-13 01:13:39,056 INFO L857 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2021-10-13 01:13:39,057 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,057 INFO L857 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,057 INFO L857 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-10-13 01:13:39,057 INFO L857 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-10-13 01:13:39,057 INFO L857 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,058 INFO L853 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse1 (<= ~a3~0 0)) (.cse8 (= ~a12~0 ~a11~0)) (.cse2 (= ~a11~0 0)) (.cse10 (<= 2 ~a3~0)) (.cse4 (<= ~a26~0 0)) (.cse6 (<= ~a27~0 0)) (.cse5 (<= ~a6~0 0)) (.cse9 (= ~a26~0 1)) (.cse0 (= ~a5~0 1)) (.cse7 (= ~a11~0 1)) (.cse3 (= ~a27~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse5) (and .cse0 .cse4 .cse2 .cse6) (and .cse0 .cse1 .cse7 .cse3) (and .cse0 (<= ~a3~0 1) .cse8 .cse4 .cse7 .cse6) (and .cse9 .cse0 .cse2 .cse3) (and .cse0 .cse4 .cse7 .cse3 .cse5) (and .cse9 .cse0 .cse2 .cse6) (and .cse0 .cse10 .cse4 .cse7 .cse3) (and .cse9 .cse0 .cse7 .cse6) (and .cse0 .cse4 .cse2 .cse3) (and .cse0 .cse10 .cse8 .cse2 .cse3) (and .cse0 .cse10 .cse4 .cse7 .cse6 .cse5) (and .cse9 .cse0 .cse7 .cse3))) [2021-10-13 01:13:39,058 INFO L857 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,058 INFO L857 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,058 INFO L857 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,058 INFO L857 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,059 INFO L857 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2021-10-13 01:13:39,059 INFO L857 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2021-10-13 01:13:39,059 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,059 INFO L857 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,059 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,059 INFO L857 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,060 INFO L857 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,060 INFO L857 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,060 INFO L857 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,060 INFO L857 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,060 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 01:13:39,060 INFO L857 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2021-10-13 01:13:39,061 INFO L857 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2021-10-13 01:13:39,061 INFO L857 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2021-10-13 01:13:39,061 INFO L857 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,061 INFO L857 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2021-10-13 01:13:39,061 INFO L857 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,061 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,062 INFO L857 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-10-13 01:13:39,062 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,062 INFO L857 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,062 INFO L857 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,062 INFO L857 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,062 INFO L857 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,063 INFO L857 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2021-10-13 01:13:39,063 INFO L857 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,064 INFO L857 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2021-10-13 01:13:39,065 INFO L857 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2021-10-13 01:13:39,065 INFO L857 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2021-10-13 01:13:39,065 INFO L857 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,065 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,065 INFO L857 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,066 INFO L857 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,066 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,067 INFO L857 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,068 INFO L857 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,068 INFO L857 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,068 INFO L857 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2021-10-13 01:13:39,069 INFO L857 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2021-10-13 01:13:39,069 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,069 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,069 INFO L857 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2021-10-13 01:13:39,069 INFO L857 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2021-10-13 01:13:39,069 INFO L857 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2021-10-13 01:13:39,070 INFO L857 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,070 INFO L857 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,070 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,070 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,070 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,070 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 01:13:39,071 INFO L857 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,071 INFO L857 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,071 INFO L857 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,071 INFO L857 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,071 INFO L857 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,072 INFO L857 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,072 INFO L857 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2021-10-13 01:13:39,072 INFO L857 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2021-10-13 01:13:39,072 INFO L857 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2021-10-13 01:13:39,072 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,072 INFO L857 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,073 INFO L857 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,073 INFO L857 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,073 INFO L857 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,073 INFO L857 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,073 INFO L857 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,073 INFO L857 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2021-10-13 01:13:39,074 INFO L857 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2021-10-13 01:13:39,074 INFO L857 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,074 INFO L857 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2021-10-13 01:13:39,074 INFO L857 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2021-10-13 01:13:39,074 INFO L857 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2021-10-13 01:13:39,074 INFO L857 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,075 INFO L857 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,075 INFO L857 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,075 INFO L857 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,075 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-10-13 01:13:39,075 INFO L857 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2021-10-13 01:13:39,076 INFO L857 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2021-10-13 01:13:39,076 INFO L857 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,076 INFO L857 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,076 INFO L857 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 01:13:39,081 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:13:39,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:13:39 BoogieIcfgContainer [2021-10-13 01:13:39,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:13:39,128 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:13:39,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:13:39,129 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:13:39,129 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:13:00" (3/4) ... [2021-10-13 01:13:39,133 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 01:13:39,179 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 01:13:39,184 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 01:13:39,188 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:13:39,193 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:13:39,445 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:13:39,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:13:39,447 INFO L168 Benchmark]: Toolchain (without parser) took 43693.34 ms. Allocated memory was 125.8 MB in the beginning and 4.3 GB in the end (delta: 4.1 GB). Free memory was 83.3 MB in the beginning and 3.7 GB in the end (delta: -3.7 GB). Peak memory consumption was 491.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:39,448 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 105.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:13:39,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1455.46 ms. Allocated memory is still 125.8 MB. Free memory was 83.1 MB in the beginning and 90.7 MB in the end (delta: -7.6 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:39,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 260.33 ms. Allocated memory is still 125.8 MB. Free memory was 90.7 MB in the beginning and 76.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:39,449 INFO L168 Benchmark]: Boogie Preprocessor took 196.17 ms. Allocated memory is still 125.8 MB. Free memory was 76.1 MB in the beginning and 66.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:39,450 INFO L168 Benchmark]: RCFGBuilder took 2474.40 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 66.3 MB in the beginning and 115.3 MB in the end (delta: -49.1 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:39,450 INFO L168 Benchmark]: TraceAbstraction took 38978.65 ms. Allocated memory was 169.9 MB in the beginning and 4.3 GB in the end (delta: 4.1 GB). Free memory was 114.3 MB in the beginning and 3.8 GB in the end (delta: -3.7 GB). Peak memory consumption was 631.0 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:39,451 INFO L168 Benchmark]: Witness Printer took 317.25 ms. Allocated memory is still 4.3 GB. Free memory was 3.8 GB in the beginning and 3.7 GB in the end (delta: 36.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-10-13 01:13:39,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 105.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1455.46 ms. Allocated memory is still 125.8 MB. Free memory was 83.1 MB in the beginning and 90.7 MB in the end (delta: -7.6 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 260.33 ms. Allocated memory is still 125.8 MB. Free memory was 90.7 MB in the beginning and 76.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 196.17 ms. Allocated memory is still 125.8 MB. Free memory was 76.1 MB in the beginning and 66.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2474.40 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 66.3 MB in the beginning and 115.3 MB in the end (delta: -49.1 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 38978.65 ms. Allocated memory was 169.9 MB in the beginning and 4.3 GB in the end (delta: 4.1 GB). Free memory was 114.3 MB in the beginning and 3.8 GB in the end (delta: -3.7 GB). Peak memory consumption was 631.0 MB. Max. memory is 16.1 GB. * Witness Printer took 317.25 ms. Allocated memory is still 4.3 GB. Free memory was 3.8 GB in the beginning and 3.7 GB in the end (delta: 36.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1600]: 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, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38854.6ms, OverallIterations: 16, TraceHistogramMax: 5, EmptinessCheckTime: 507.4ms, AutomataDifference: 20094.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 890.9ms, InitialAbstractionConstructionTime: 21.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3402 SDtfs, 3234 SDslu, 346 SDs, 0 SdLazy, 9734 SolverSat, 2007 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13257.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1551 GetRequests, 1521 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 237.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28714occurred in iteration=12, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5052.5ms AutomataMinimizationTime, 16 MinimizatonAttempts, 2985 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 225 NumberOfFragments, 415 HoareAnnotationTreeSize, 3 FomulaSimplifications, 4668 FormulaSimplificationTreeSizeReduction, 241.8ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 384 FormulaSimplificationTreeSizeReductionInter, 639.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 648.4ms SsaConstructionTime, 1475.0ms SatisfiabilityAnalysisTime, 7195.5ms InterpolantComputationTime, 5495 NumberOfCodeBlocks, 5495 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 5474 ConstructedInterpolants, 0 QuantifiedInterpolants, 13340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2869 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 21 InterpolantComputations, 16 PerfectInterpolantSequences, 2455/2485 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: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((((((((((((a5 == 1 && a3 <= 0) && a11 == 0) && a27 == 1) || ((((a5 == 1 && a3 <= 0) && a26 <= 0) && a11 == 0) && a6 <= 0)) || (((a5 == 1 && a26 <= 0) && a11 == 0) && a27 <= 0)) || (((a5 == 1 && a3 <= 0) && a11 == 1) && a27 == 1)) || (((((a5 == 1 && a3 <= 1) && a12 == a11) && a26 <= 0) && a11 == 1) && a27 <= 0)) || (((a26 == 1 && a5 == 1) && a11 == 0) && a27 == 1)) || ((((a5 == 1 && a26 <= 0) && a11 == 1) && a27 == 1) && a6 <= 0)) || (((a26 == 1 && a5 == 1) && a11 == 0) && a27 <= 0)) || ((((a5 == 1 && 2 <= a3) && a26 <= 0) && a11 == 1) && a27 == 1)) || (((a26 == 1 && a5 == 1) && a11 == 1) && a27 <= 0)) || (((a5 == 1 && a26 <= 0) && a11 == 0) && a27 == 1)) || ((((a5 == 1 && 2 <= a3) && a12 == a11) && a11 == 0) && a27 == 1)) || (((((a5 == 1 && 2 <= a3) && a26 <= 0) && a11 == 1) && a27 <= 0) && a6 <= 0)) || (((a26 == 1 && a5 == 1) && a11 == 1) && a27 == 1) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((((a5 == 1 && a3 <= 0) && a11 == 0) && a27 == 1) || ((((a5 == 1 && a3 <= 0) && a26 <= 0) && a11 == 0) && a6 <= 0)) || (((a5 == 1 && a26 <= 0) && a11 == 0) && a27 <= 0)) || (((a5 == 1 && a3 <= 0) && a11 == 1) && a27 == 1)) || (((((a5 == 1 && a3 <= 1) && a12 == a11) && a26 <= 0) && a11 == 1) && a27 <= 0)) || (((a26 == 1 && a5 == 1) && a11 == 0) && a27 == 1)) || ((((a5 == 1 && a26 <= 0) && a11 == 1) && a27 == 1) && a6 <= 0)) || (((a26 == 1 && a5 == 1) && a11 == 0) && a27 <= 0)) || ((((a5 == 1 && 2 <= a3) && a26 <= 0) && a11 == 1) && a27 == 1)) || (((a26 == 1 && a5 == 1) && a11 == 1) && a27 <= 0)) || (((a5 == 1 && a26 <= 0) && a11 == 0) && a27 == 1)) || ((((a5 == 1 && 2 <= a3) && a12 == a11) && a11 == 0) && a27 == 1)) || (((((a5 == 1 && 2 <= a3) && a26 <= 0) && a11 == 1) && a27 <= 0) && a6 <= 0)) || (((a26 == 1 && a5 == 1) && a11 == 1) && a27 == 1) RESULT: Ultimate proved your program to be correct! [2021-10-13 01:13:39,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26057520-be18-49c2-bda1-66e35d1bbbec/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...