./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD --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 7fd757c5f0ffc97130fbf2ffab3363825f5b034ba202e55120163a97ab859a7b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:46:31,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:46:31,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:46:31,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:46:31,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:46:31,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:46:31,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:46:31,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:46:31,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:46:31,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:46:31,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:46:31,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:46:31,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:46:31,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:46:31,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:46:31,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:46:31,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:46:31,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:46:31,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:46:31,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:46:31,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:46:31,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:46:31,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:46:31,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:46:31,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:46:31,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:46:31,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:46:31,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:46:31,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:46:31,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:46:31,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:46:31,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:46:31,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:46:31,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:46:31,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:46:31,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:46:31,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:46:31,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:46:31,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:46:31,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:46:31,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:46:31,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 22:46:31,907 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:46:31,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:46:31,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:46:31,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:46:31,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:46:31,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:46:31,910 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:46:31,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:46:31,911 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:46:31,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:46:31,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:46:31,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:46:31,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:46:31,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:46:31,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:46:31,913 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:46:31,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:46:31,914 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:46:31,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:46:31,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:46:31,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:46:31,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:46:31,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:46:31,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:46:31,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:46:31,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:46:31,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:46:31,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:46:31,917 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:46:31,918 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:46:31,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:46:31,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:46:31,919 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_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fd757c5f0ffc97130fbf2ffab3363825f5b034ba202e55120163a97ab859a7b [2021-10-28 22:46:32,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:46:32,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:46:32,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:46:32,239 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:46:32,240 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:46:32,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2021-10-28 22:46:32,332 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/data/3bc5501f6/1458a533bcfc45c1a3c52d54aa7d98f9/FLAG7020cd8c0 [2021-10-28 22:46:32,825 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:46:32,826 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2021-10-28 22:46:32,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/data/3bc5501f6/1458a533bcfc45c1a3c52d54aa7d98f9/FLAG7020cd8c0 [2021-10-28 22:46:33,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/data/3bc5501f6/1458a533bcfc45c1a3c52d54aa7d98f9 [2021-10-28 22:46:33,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:46:33,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:46:33,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:46:33,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:46:33,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:46:33,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:46:33" (1/1) ... [2021-10-28 22:46:33,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@308bc14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33, skipping insertion in model container [2021-10-28 22:46:33,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:46:33" (1/1) ... [2021-10-28 22:46:33,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:46:33,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:46:33,505 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_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37478,37491] [2021-10-28 22:46:33,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:46:33,521 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:46:33,601 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_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37478,37491] [2021-10-28 22:46:33,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:46:33,624 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:46:33,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33 WrapperNode [2021-10-28 22:46:33,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:46:33,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:46:33,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:46:33,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:46:33,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33" (1/1) ... [2021-10-28 22:46:33,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33" (1/1) ... [2021-10-28 22:46:33,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:46:33,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:46:33,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:46:33,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:46:33,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33" (1/1) ... [2021-10-28 22:46:33,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33" (1/1) ... [2021-10-28 22:46:33,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33" (1/1) ... [2021-10-28 22:46:33,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33" (1/1) ... [2021-10-28 22:46:33,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33" (1/1) ... [2021-10-28 22:46:33,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33" (1/1) ... [2021-10-28 22:46:33,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33" (1/1) ... [2021-10-28 22:46:33,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:46:33,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:46:33,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:46:33,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:46:33,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33" (1/1) ... [2021-10-28 22:46:33,844 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:46:33,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:46:33,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:46:33,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:46:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:46:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:46:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:46:33,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:46:34,098 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 22:46:34,596 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2021-10-28 22:46:34,596 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2021-10-28 22:46:34,605 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:46:34,605 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 22:46:34,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:46:34 BoogieIcfgContainer [2021-10-28 22:46:34,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:46:34,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:46:34,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:46:34,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:46:34,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:46:33" (1/3) ... [2021-10-28 22:46:34,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112a4e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:46:34, skipping insertion in model container [2021-10-28 22:46:34,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:46:33" (2/3) ... [2021-10-28 22:46:34,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112a4e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:46:34, skipping insertion in model container [2021-10-28 22:46:34,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:46:34" (3/3) ... [2021-10-28 22:46:34,617 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2021-10-28 22:46:34,622 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:46:34,622 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 22:46:34,669 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:46:34,676 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 22:46:34,676 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 22:46:34,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 124 states have (on average 1.7338709677419355) internal successors, (215), 125 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:34,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 22:46:34,701 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:34,702 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:34,702 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:34,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:34,708 INFO L85 PathProgramCache]: Analyzing trace with hash 259999105, now seen corresponding path program 1 times [2021-10-28 22:46:34,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:34,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741838613] [2021-10-28 22:46:34,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:34,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:46:35,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:35,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741838613] [2021-10-28 22:46:35,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741838613] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:35,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:35,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:35,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824225411] [2021-10-28 22:46:35,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:35,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:35,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:35,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:35,035 INFO L87 Difference]: Start difference. First operand has 126 states, 124 states have (on average 1.7338709677419355) internal successors, (215), 125 states have internal predecessors, (215), 0 states have call successors, (0), 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 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:35,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:35,224 INFO L93 Difference]: Finished difference Result 247 states and 423 transitions. [2021-10-28 22:46:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:35,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-28 22:46:35,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:35,237 INFO L225 Difference]: With dead ends: 247 [2021-10-28 22:46:35,238 INFO L226 Difference]: Without dead ends: 113 [2021-10-28 22:46:35,243 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:35,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-28 22:46:35,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-10-28 22:46:35,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.5267857142857142) internal successors, (171), 112 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:35,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 171 transitions. [2021-10-28 22:46:35,314 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 171 transitions. Word has length 25 [2021-10-28 22:46:35,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:35,314 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 171 transitions. [2021-10-28 22:46:35,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:35,315 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 171 transitions. [2021-10-28 22:46:35,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-28 22:46:35,317 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:35,317 INFO L513 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] [2021-10-28 22:46:35,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 22:46:35,318 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:35,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:35,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1138040513, now seen corresponding path program 1 times [2021-10-28 22:46:35,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:35,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760680734] [2021-10-28 22:46:35,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:35,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:35,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:46:35,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:35,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760680734] [2021-10-28 22:46:35,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760680734] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:35,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:35,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:35,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084539364] [2021-10-28 22:46:35,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:35,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:35,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:35,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:35,501 INFO L87 Difference]: Start difference. First operand 113 states and 171 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:35,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:35,666 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2021-10-28 22:46:35,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:35,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-28 22:46:35,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:35,673 INFO L225 Difference]: With dead ends: 233 [2021-10-28 22:46:35,673 INFO L226 Difference]: Without dead ends: 131 [2021-10-28 22:46:35,675 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:35,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-28 22:46:35,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2021-10-28 22:46:35,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.5039370078740157) internal successors, (191), 127 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) [2021-10-28 22:46:35,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 191 transitions. [2021-10-28 22:46:35,702 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 191 transitions. Word has length 37 [2021-10-28 22:46:35,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:35,704 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 191 transitions. [2021-10-28 22:46:35,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:35,705 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 191 transitions. [2021-10-28 22:46:35,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 22:46:35,709 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:35,709 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:35,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 22:46:35,710 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:35,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:35,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1126420040, now seen corresponding path program 1 times [2021-10-28 22:46:35,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:35,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412098285] [2021-10-28 22:46:35,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:35,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:35,826 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 22:46:35,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:35,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412098285] [2021-10-28 22:46:35,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412098285] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:35,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:35,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:35,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495020034] [2021-10-28 22:46:35,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:35,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:35,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:35,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:35,838 INFO L87 Difference]: Start difference. First operand 128 states and 191 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:35,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:35,869 INFO L93 Difference]: Finished difference Result 271 states and 400 transitions. [2021-10-28 22:46:35,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:35,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 51 [2021-10-28 22:46:35,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:35,872 INFO L225 Difference]: With dead ends: 271 [2021-10-28 22:46:35,872 INFO L226 Difference]: Without dead ends: 154 [2021-10-28 22:46:35,879 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:35,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-10-28 22:46:35,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-10-28 22:46:35,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.4640522875816993) internal successors, (224), 153 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:35,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 224 transitions. [2021-10-28 22:46:35,890 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 224 transitions. Word has length 51 [2021-10-28 22:46:35,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:35,891 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 224 transitions. [2021-10-28 22:46:35,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:35,891 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 224 transitions. [2021-10-28 22:46:35,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 22:46:35,908 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:35,909 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:35,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 22:46:35,909 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:35,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:35,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1260433546, now seen corresponding path program 1 times [2021-10-28 22:46:35,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:35,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236260760] [2021-10-28 22:46:35,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:35,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:35,986 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 22:46:35,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:35,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236260760] [2021-10-28 22:46:35,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236260760] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:35,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:35,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:35,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359471708] [2021-10-28 22:46:35,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:35,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:35,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:35,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:35,990 INFO L87 Difference]: Start difference. First operand 154 states and 224 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:36,117 INFO L93 Difference]: Finished difference Result 292 states and 435 transitions. [2021-10-28 22:46:36,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:36,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 51 [2021-10-28 22:46:36,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:36,119 INFO L225 Difference]: With dead ends: 292 [2021-10-28 22:46:36,119 INFO L226 Difference]: Without dead ends: 175 [2021-10-28 22:46:36,120 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:36,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-10-28 22:46:36,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 171. [2021-10-28 22:46:36,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.4470588235294117) internal successors, (246), 170 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 246 transitions. [2021-10-28 22:46:36,129 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 246 transitions. Word has length 51 [2021-10-28 22:46:36,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:36,130 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 246 transitions. [2021-10-28 22:46:36,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,130 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 246 transitions. [2021-10-28 22:46:36,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-28 22:46:36,132 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:36,132 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:36,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 22:46:36,133 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:36,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:36,133 INFO L85 PathProgramCache]: Analyzing trace with hash -457628469, now seen corresponding path program 1 times [2021-10-28 22:46:36,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:36,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871037881] [2021-10-28 22:46:36,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:36,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:36,203 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-28 22:46:36,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:36,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871037881] [2021-10-28 22:46:36,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871037881] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:36,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:36,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:36,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167454732] [2021-10-28 22:46:36,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:36,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:36,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:36,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:36,206 INFO L87 Difference]: Start difference. First operand 171 states and 246 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:36,248 INFO L93 Difference]: Finished difference Result 436 states and 638 transitions. [2021-10-28 22:46:36,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:36,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-10-28 22:46:36,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:36,253 INFO L225 Difference]: With dead ends: 436 [2021-10-28 22:46:36,253 INFO L226 Difference]: Without dead ends: 302 [2021-10-28 22:46:36,254 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:36,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-10-28 22:46:36,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2021-10-28 22:46:36,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.4451827242524917) internal successors, (435), 301 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 435 transitions. [2021-10-28 22:46:36,281 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 435 transitions. Word has length 68 [2021-10-28 22:46:36,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:36,283 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 435 transitions. [2021-10-28 22:46:36,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,283 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 435 transitions. [2021-10-28 22:46:36,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-28 22:46:36,289 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:36,289 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:36,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 22:46:36,290 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:36,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:36,290 INFO L85 PathProgramCache]: Analyzing trace with hash 562572643, now seen corresponding path program 1 times [2021-10-28 22:46:36,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:36,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645157078] [2021-10-28 22:46:36,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:36,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:36,384 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 22:46:36,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:36,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645157078] [2021-10-28 22:46:36,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645157078] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:36,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:36,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:36,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650159830] [2021-10-28 22:46:36,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:36,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:36,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:36,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:36,387 INFO L87 Difference]: Start difference. First operand 302 states and 435 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:36,413 INFO L93 Difference]: Finished difference Result 588 states and 849 transitions. [2021-10-28 22:46:36,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:36,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 69 [2021-10-28 22:46:36,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:36,417 INFO L225 Difference]: With dead ends: 588 [2021-10-28 22:46:36,417 INFO L226 Difference]: Without dead ends: 323 [2021-10-28 22:46:36,418 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:36,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-10-28 22:46:36,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-10-28 22:46:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.434782608695652) internal successors, (462), 322 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 462 transitions. [2021-10-28 22:46:36,430 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 462 transitions. Word has length 69 [2021-10-28 22:46:36,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:36,430 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 462 transitions. [2021-10-28 22:46:36,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,431 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 462 transitions. [2021-10-28 22:46:36,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-10-28 22:46:36,432 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:36,432 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:36,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 22:46:36,433 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:36,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:36,433 INFO L85 PathProgramCache]: Analyzing trace with hash 777921003, now seen corresponding path program 1 times [2021-10-28 22:46:36,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:36,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748303220] [2021-10-28 22:46:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:36,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:36,493 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-28 22:46:36,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:36,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748303220] [2021-10-28 22:46:36,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748303220] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:36,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:36,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:36,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508172864] [2021-10-28 22:46:36,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:36,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:36,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:36,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:36,497 INFO L87 Difference]: Start difference. First operand 323 states and 462 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:36,645 INFO L93 Difference]: Finished difference Result 657 states and 958 transitions. [2021-10-28 22:46:36,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:36,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 86 [2021-10-28 22:46:36,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:36,649 INFO L225 Difference]: With dead ends: 657 [2021-10-28 22:46:36,649 INFO L226 Difference]: Without dead ends: 371 [2021-10-28 22:46:36,651 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:36,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2021-10-28 22:46:36,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 365. [2021-10-28 22:46:36,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.4120879120879122) internal successors, (514), 364 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 514 transitions. [2021-10-28 22:46:36,685 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 514 transitions. Word has length 86 [2021-10-28 22:46:36,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:36,687 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 514 transitions. [2021-10-28 22:46:36,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,687 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 514 transitions. [2021-10-28 22:46:36,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-10-28 22:46:36,694 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:36,695 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:36,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 22:46:36,695 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:36,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:36,696 INFO L85 PathProgramCache]: Analyzing trace with hash -97425693, now seen corresponding path program 1 times [2021-10-28 22:46:36,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:36,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433762719] [2021-10-28 22:46:36,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:36,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:36,747 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-28 22:46:36,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:36,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433762719] [2021-10-28 22:46:36,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433762719] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:36,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:36,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:36,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079396133] [2021-10-28 22:46:36,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:36,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:36,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:36,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:36,750 INFO L87 Difference]: Start difference. First operand 365 states and 514 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:36,786 INFO L93 Difference]: Finished difference Result 520 states and 737 transitions. [2021-10-28 22:46:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:36,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 106 [2021-10-28 22:46:36,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:36,791 INFO L225 Difference]: With dead ends: 520 [2021-10-28 22:46:36,791 INFO L226 Difference]: Without dead ends: 518 [2021-10-28 22:46:36,791 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:36,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2021-10-28 22:46:36,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2021-10-28 22:46:36,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 517 states have (on average 1.4216634429400388) internal successors, (735), 517 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 735 transitions. [2021-10-28 22:46:36,808 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 735 transitions. Word has length 106 [2021-10-28 22:46:36,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:36,808 INFO L470 AbstractCegarLoop]: Abstraction has 518 states and 735 transitions. [2021-10-28 22:46:36,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:36,809 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 735 transitions. [2021-10-28 22:46:36,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-10-28 22:46:36,811 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:36,811 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:36,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 22:46:36,812 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:36,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:36,812 INFO L85 PathProgramCache]: Analyzing trace with hash -833396868, now seen corresponding path program 1 times [2021-10-28 22:46:36,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:36,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139508337] [2021-10-28 22:46:36,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:36,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:36,861 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-28 22:46:36,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:36,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139508337] [2021-10-28 22:46:36,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139508337] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:36,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:36,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:36,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692137682] [2021-10-28 22:46:36,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:36,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:36,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:36,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:36,864 INFO L87 Difference]: Start difference. First operand 518 states and 735 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:37,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:37,040 INFO L93 Difference]: Finished difference Result 1149 states and 1685 transitions. [2021-10-28 22:46:37,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:37,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-10-28 22:46:37,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:37,045 INFO L225 Difference]: With dead ends: 1149 [2021-10-28 22:46:37,046 INFO L226 Difference]: Without dead ends: 665 [2021-10-28 22:46:37,047 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:37,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2021-10-28 22:46:37,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 641. [2021-10-28 22:46:37,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 640 states have (on average 1.4578125) internal successors, (933), 640 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:37,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 933 transitions. [2021-10-28 22:46:37,082 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 933 transitions. Word has length 124 [2021-10-28 22:46:37,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:37,082 INFO L470 AbstractCegarLoop]: Abstraction has 641 states and 933 transitions. [2021-10-28 22:46:37,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:37,083 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 933 transitions. [2021-10-28 22:46:37,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-10-28 22:46:37,085 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:37,085 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 7, 7, 7, 5, 5, 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] [2021-10-28 22:46:37,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 22:46:37,086 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:37,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:37,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1117892099, now seen corresponding path program 1 times [2021-10-28 22:46:37,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:37,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026490934] [2021-10-28 22:46:37,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:37,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:37,132 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-10-28 22:46:37,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:37,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026490934] [2021-10-28 22:46:37,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026490934] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:37,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:37,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:37,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497006060] [2021-10-28 22:46:37,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:37,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:37,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:37,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:37,135 INFO L87 Difference]: Start difference. First operand 641 states and 933 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:37,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:37,304 INFO L93 Difference]: Finished difference Result 1523 states and 2284 transitions. [2021-10-28 22:46:37,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:37,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 150 [2021-10-28 22:46:37,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:37,310 INFO L225 Difference]: With dead ends: 1523 [2021-10-28 22:46:37,310 INFO L226 Difference]: Without dead ends: 868 [2021-10-28 22:46:37,311 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2021-10-28 22:46:37,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 830. [2021-10-28 22:46:37,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 829 states have (on average 1.4294330518697225) internal successors, (1185), 829 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:37,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1185 transitions. [2021-10-28 22:46:37,340 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1185 transitions. Word has length 150 [2021-10-28 22:46:37,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:37,340 INFO L470 AbstractCegarLoop]: Abstraction has 830 states and 1185 transitions. [2021-10-28 22:46:37,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:37,341 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1185 transitions. [2021-10-28 22:46:37,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-10-28 22:46:37,344 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:37,344 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:37,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 22:46:37,345 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:37,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:37,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1900103119, now seen corresponding path program 1 times [2021-10-28 22:46:37,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:37,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026611341] [2021-10-28 22:46:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:37,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:37,410 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-10-28 22:46:37,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:37,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026611341] [2021-10-28 22:46:37,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026611341] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:37,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:37,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:37,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130025713] [2021-10-28 22:46:37,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:37,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:37,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:37,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:37,412 INFO L87 Difference]: Start difference. First operand 830 states and 1185 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:37,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:37,577 INFO L93 Difference]: Finished difference Result 1779 states and 2561 transitions. [2021-10-28 22:46:37,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:37,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 171 [2021-10-28 22:46:37,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:37,583 INFO L225 Difference]: With dead ends: 1779 [2021-10-28 22:46:37,584 INFO L226 Difference]: Without dead ends: 941 [2021-10-28 22:46:37,585 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:37,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2021-10-28 22:46:37,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 905. [2021-10-28 22:46:37,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 904 states have (on average 1.4170353982300885) internal successors, (1281), 904 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:37,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1281 transitions. [2021-10-28 22:46:37,628 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1281 transitions. Word has length 171 [2021-10-28 22:46:37,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:37,629 INFO L470 AbstractCegarLoop]: Abstraction has 905 states and 1281 transitions. [2021-10-28 22:46:37,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:37,629 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1281 transitions. [2021-10-28 22:46:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-10-28 22:46:37,632 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:37,632 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 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] [2021-10-28 22:46:37,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 22:46:37,633 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:37,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:37,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1650023748, now seen corresponding path program 1 times [2021-10-28 22:46:37,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:37,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698945421] [2021-10-28 22:46:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:37,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:37,688 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-10-28 22:46:37,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:37,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698945421] [2021-10-28 22:46:37,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698945421] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:37,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:37,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:37,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896730102] [2021-10-28 22:46:37,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:37,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:37,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:37,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:37,691 INFO L87 Difference]: Start difference. First operand 905 states and 1281 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:37,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:37,864 INFO L93 Difference]: Finished difference Result 1929 states and 2750 transitions. [2021-10-28 22:46:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:37,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 195 [2021-10-28 22:46:37,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:37,872 INFO L225 Difference]: With dead ends: 1929 [2021-10-28 22:46:37,872 INFO L226 Difference]: Without dead ends: 1022 [2021-10-28 22:46:37,873 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:37,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2021-10-28 22:46:37,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 989. [2021-10-28 22:46:37,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 988 states have (on average 1.408906882591093) internal successors, (1392), 988 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:37,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1392 transitions. [2021-10-28 22:46:37,905 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1392 transitions. Word has length 195 [2021-10-28 22:46:37,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:37,905 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1392 transitions. [2021-10-28 22:46:37,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:37,906 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1392 transitions. [2021-10-28 22:46:37,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-10-28 22:46:37,909 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:37,910 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 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] [2021-10-28 22:46:37,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 22:46:37,910 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:37,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:37,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1428789822, now seen corresponding path program 1 times [2021-10-28 22:46:37,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:37,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122470053] [2021-10-28 22:46:37,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:37,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-10-28 22:46:37,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:37,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122470053] [2021-10-28 22:46:37,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122470053] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:37,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:37,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:37,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530641071] [2021-10-28 22:46:37,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:37,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:37,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:37,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:37,971 INFO L87 Difference]: Start difference. First operand 989 states and 1392 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:38,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:38,155 INFO L93 Difference]: Finished difference Result 2097 states and 2975 transitions. [2021-10-28 22:46:38,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:38,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 195 [2021-10-28 22:46:38,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:38,162 INFO L225 Difference]: With dead ends: 2097 [2021-10-28 22:46:38,163 INFO L226 Difference]: Without dead ends: 1118 [2021-10-28 22:46:38,164 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2021-10-28 22:46:38,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1082. [2021-10-28 22:46:38,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1081 states have (on average 1.4098057354301572) internal successors, (1524), 1081 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:38,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1524 transitions. [2021-10-28 22:46:38,216 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1524 transitions. Word has length 195 [2021-10-28 22:46:38,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:38,216 INFO L470 AbstractCegarLoop]: Abstraction has 1082 states and 1524 transitions. [2021-10-28 22:46:38,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:38,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1524 transitions. [2021-10-28 22:46:38,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-10-28 22:46:38,221 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:38,221 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:38,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 22:46:38,222 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:38,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:38,222 INFO L85 PathProgramCache]: Analyzing trace with hash -390571940, now seen corresponding path program 1 times [2021-10-28 22:46:38,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:38,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546474027] [2021-10-28 22:46:38,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:38,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:38,283 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-28 22:46:38,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:38,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546474027] [2021-10-28 22:46:38,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546474027] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:38,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:38,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:38,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911051057] [2021-10-28 22:46:38,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:38,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:38,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:38,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:38,286 INFO L87 Difference]: Start difference. First operand 1082 states and 1524 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:38,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:38,335 INFO L93 Difference]: Finished difference Result 3169 states and 4471 transitions. [2021-10-28 22:46:38,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:38,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 225 [2021-10-28 22:46:38,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:38,348 INFO L225 Difference]: With dead ends: 3169 [2021-10-28 22:46:38,348 INFO L226 Difference]: Without dead ends: 2124 [2021-10-28 22:46:38,350 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:38,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2021-10-28 22:46:38,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 2122. [2021-10-28 22:46:38,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 2121 states have (on average 1.4106553512494107) internal successors, (2992), 2121 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:38,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2992 transitions. [2021-10-28 22:46:38,420 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2992 transitions. Word has length 225 [2021-10-28 22:46:38,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:38,420 INFO L470 AbstractCegarLoop]: Abstraction has 2122 states and 2992 transitions. [2021-10-28 22:46:38,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:38,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2992 transitions. [2021-10-28 22:46:38,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-10-28 22:46:38,426 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:38,427 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:38,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 22:46:38,427 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:38,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:38,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1606725666, now seen corresponding path program 1 times [2021-10-28 22:46:38,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:38,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627403571] [2021-10-28 22:46:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:38,429 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-10-28 22:46:38,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:38,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627403571] [2021-10-28 22:46:38,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627403571] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:38,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:38,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:38,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819289711] [2021-10-28 22:46:38,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:38,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:38,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:38,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:38,519 INFO L87 Difference]: Start difference. First operand 2122 states and 2992 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:38,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:38,723 INFO L93 Difference]: Finished difference Result 4513 states and 6403 transitions. [2021-10-28 22:46:38,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:38,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 225 [2021-10-28 22:46:38,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:38,739 INFO L225 Difference]: With dead ends: 4513 [2021-10-28 22:46:38,739 INFO L226 Difference]: Without dead ends: 2398 [2021-10-28 22:46:38,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:38,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2021-10-28 22:46:38,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2332. [2021-10-28 22:46:38,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2331 states have (on average 1.4174174174174174) internal successors, (3304), 2331 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:38,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 3304 transitions. [2021-10-28 22:46:38,819 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 3304 transitions. Word has length 225 [2021-10-28 22:46:38,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:38,820 INFO L470 AbstractCegarLoop]: Abstraction has 2332 states and 3304 transitions. [2021-10-28 22:46:38,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:38,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 3304 transitions. [2021-10-28 22:46:38,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-10-28 22:46:38,826 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:38,826 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:38,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 22:46:38,827 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:38,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:38,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1762482343, now seen corresponding path program 1 times [2021-10-28 22:46:38,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:38,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220279471] [2021-10-28 22:46:38,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:38,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:38,891 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2021-10-28 22:46:38,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:38,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220279471] [2021-10-28 22:46:38,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220279471] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:38,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:38,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:38,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089081815] [2021-10-28 22:46:38,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:38,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:38,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:38,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:38,894 INFO L87 Difference]: Start difference. First operand 2332 states and 3304 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:39,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:39,088 INFO L93 Difference]: Finished difference Result 4693 states and 6637 transitions. [2021-10-28 22:46:39,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:39,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 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 260 [2021-10-28 22:46:39,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:39,130 INFO L225 Difference]: With dead ends: 4693 [2021-10-28 22:46:39,130 INFO L226 Difference]: Without dead ends: 2380 [2021-10-28 22:46:39,133 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:39,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2021-10-28 22:46:39,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2314. [2021-10-28 22:46:39,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2313 states have (on average 1.4051015996541287) internal successors, (3250), 2313 states have internal predecessors, (3250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3250 transitions. [2021-10-28 22:46:39,204 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3250 transitions. Word has length 260 [2021-10-28 22:46:39,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:39,205 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 3250 transitions. [2021-10-28 22:46:39,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:39,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3250 transitions. [2021-10-28 22:46:39,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-10-28 22:46:39,212 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:39,212 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:39,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 22:46:39,212 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:39,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:39,213 INFO L85 PathProgramCache]: Analyzing trace with hash 357446499, now seen corresponding path program 1 times [2021-10-28 22:46:39,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:39,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133553957] [2021-10-28 22:46:39,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:39,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:39,295 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-10-28 22:46:39,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:39,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133553957] [2021-10-28 22:46:39,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133553957] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:39,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:39,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:39,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449020377] [2021-10-28 22:46:39,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:39,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:39,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:39,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:39,298 INFO L87 Difference]: Start difference. First operand 2314 states and 3250 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:39,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:39,385 INFO L93 Difference]: Finished difference Result 6879 states and 9664 transitions. [2021-10-28 22:46:39,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:39,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 270 [2021-10-28 22:46:39,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:39,410 INFO L225 Difference]: With dead ends: 6879 [2021-10-28 22:46:39,410 INFO L226 Difference]: Without dead ends: 4602 [2021-10-28 22:46:39,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:39,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2021-10-28 22:46:39,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 4600. [2021-10-28 22:46:39,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4600 states, 4599 states have (on average 1.401174168297456) internal successors, (6444), 4599 states have internal predecessors, (6444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:39,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6444 transitions. [2021-10-28 22:46:39,591 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6444 transitions. Word has length 270 [2021-10-28 22:46:39,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:39,592 INFO L470 AbstractCegarLoop]: Abstraction has 4600 states and 6444 transitions. [2021-10-28 22:46:39,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:39,592 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6444 transitions. [2021-10-28 22:46:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-10-28 22:46:39,602 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:39,602 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:39,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 22:46:39,603 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:39,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:39,604 INFO L85 PathProgramCache]: Analyzing trace with hash 259987815, now seen corresponding path program 1 times [2021-10-28 22:46:39,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:39,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641616529] [2021-10-28 22:46:39,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:39,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-28 22:46:39,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:39,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641616529] [2021-10-28 22:46:39,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641616529] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:39,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:39,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:39,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549863884] [2021-10-28 22:46:39,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:39,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:39,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:39,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:39,673 INFO L87 Difference]: Start difference. First operand 4600 states and 6444 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:39,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:39,924 INFO L93 Difference]: Finished difference Result 9242 states and 12935 transitions. [2021-10-28 22:46:39,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:39,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 270 [2021-10-28 22:46:39,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:39,950 INFO L225 Difference]: With dead ends: 9242 [2021-10-28 22:46:39,950 INFO L226 Difference]: Without dead ends: 4708 [2021-10-28 22:46:39,955 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:39,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4708 states. [2021-10-28 22:46:40,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4708 to 4600. [2021-10-28 22:46:40,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4600 states, 4599 states have (on average 1.3776908023483365) internal successors, (6336), 4599 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:40,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6336 transitions. [2021-10-28 22:46:40,102 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6336 transitions. Word has length 270 [2021-10-28 22:46:40,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:40,102 INFO L470 AbstractCegarLoop]: Abstraction has 4600 states and 6336 transitions. [2021-10-28 22:46:40,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:40,103 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6336 transitions. [2021-10-28 22:46:40,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-10-28 22:46:40,113 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:40,113 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:40,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 22:46:40,114 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:40,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:40,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1955386571, now seen corresponding path program 1 times [2021-10-28 22:46:40,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:40,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653484715] [2021-10-28 22:46:40,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:40,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:40,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-10-28 22:46:40,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:40,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653484715] [2021-10-28 22:46:40,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653484715] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:40,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:40,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:40,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131692211] [2021-10-28 22:46:40,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:40,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:40,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:40,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:40,180 INFO L87 Difference]: Start difference. First operand 4600 states and 6336 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:40,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:40,439 INFO L93 Difference]: Finished difference Result 9728 states and 13289 transitions. [2021-10-28 22:46:40,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:40,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 297 [2021-10-28 22:46:40,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:40,470 INFO L225 Difference]: With dead ends: 9728 [2021-10-28 22:46:40,470 INFO L226 Difference]: Without dead ends: 5194 [2021-10-28 22:46:40,477 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:40,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5194 states. [2021-10-28 22:46:40,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5194 to 4774. [2021-10-28 22:46:40,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4774 states, 4773 states have (on average 1.3764927718416091) internal successors, (6570), 4773 states have internal predecessors, (6570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:40,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 6570 transitions. [2021-10-28 22:46:40,685 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 6570 transitions. Word has length 297 [2021-10-28 22:46:40,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:40,686 INFO L470 AbstractCegarLoop]: Abstraction has 4774 states and 6570 transitions. [2021-10-28 22:46:40,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:40,687 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 6570 transitions. [2021-10-28 22:46:40,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-10-28 22:46:40,698 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:40,699 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:40,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 22:46:40,699 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:40,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:40,700 INFO L85 PathProgramCache]: Analyzing trace with hash -950226577, now seen corresponding path program 1 times [2021-10-28 22:46:40,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:40,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714353615] [2021-10-28 22:46:40,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:40,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-10-28 22:46:40,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:40,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714353615] [2021-10-28 22:46:40,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714353615] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:40,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:46:40,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:46:40,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462948200] [2021-10-28 22:46:40,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:40,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:40,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:40,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:40,777 INFO L87 Difference]: Start difference. First operand 4774 states and 6570 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:40,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:40,985 INFO L93 Difference]: Finished difference Result 9806 states and 13379 transitions. [2021-10-28 22:46:40,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:40,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 298 [2021-10-28 22:46:40,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:40,997 INFO L225 Difference]: With dead ends: 9806 [2021-10-28 22:46:40,997 INFO L226 Difference]: Without dead ends: 4594 [2021-10-28 22:46:41,003 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:46:41,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-10-28 22:46:41,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4576. [2021-10-28 22:46:41,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4576 states, 4575 states have (on average 1.3718032786885246) internal successors, (6276), 4575 states have internal predecessors, (6276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:41,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 6276 transitions. [2021-10-28 22:46:41,148 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 6276 transitions. Word has length 298 [2021-10-28 22:46:41,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:41,149 INFO L470 AbstractCegarLoop]: Abstraction has 4576 states and 6276 transitions. [2021-10-28 22:46:41,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:41,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 6276 transitions. [2021-10-28 22:46:41,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-10-28 22:46:41,161 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:41,162 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:41,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-28 22:46:41,162 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:41,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:41,163 INFO L85 PathProgramCache]: Analyzing trace with hash 977282003, now seen corresponding path program 1 times [2021-10-28 22:46:41,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:41,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317537565] [2021-10-28 22:46:41,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:41,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-28 22:46:41,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:41,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317537565] [2021-10-28 22:46:41,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317537565] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:46:41,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121398116] [2021-10-28 22:46:41,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:41,251 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:46:41,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:46:41,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:46:41,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 22:46:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:41,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 22:46:41,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:46:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2021-10-28 22:46:42,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121398116] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:46:42,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 22:46:42,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-28 22:46:42,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892111372] [2021-10-28 22:46:42,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:46:42,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:42,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:46:42,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:46:42,520 INFO L87 Difference]: Start difference. First operand 4576 states and 6276 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:42,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:42,590 INFO L93 Difference]: Finished difference Result 6867 states and 9400 transitions. [2021-10-28 22:46:42,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:46:42,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 308 [2021-10-28 22:46:42,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:42,602 INFO L225 Difference]: With dead ends: 6867 [2021-10-28 22:46:42,602 INFO L226 Difference]: Without dead ends: 4578 [2021-10-28 22:46:42,606 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:46:42,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states. [2021-10-28 22:46:42,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 4564. [2021-10-28 22:46:42,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4564 states, 4563 states have (on average 1.3675213675213675) internal successors, (6240), 4563 states have internal predecessors, (6240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:42,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 6240 transitions. [2021-10-28 22:46:42,739 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 6240 transitions. Word has length 308 [2021-10-28 22:46:42,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:42,740 INFO L470 AbstractCegarLoop]: Abstraction has 4564 states and 6240 transitions. [2021-10-28 22:46:42,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:42,740 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 6240 transitions. [2021-10-28 22:46:42,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-10-28 22:46:42,751 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:42,752 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2021-10-28 22:46:42,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:46:42,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-10-28 22:46:42,973 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:42,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:42,974 INFO L85 PathProgramCache]: Analyzing trace with hash -828156331, now seen corresponding path program 1 times [2021-10-28 22:46:42,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:42,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136757712] [2021-10-28 22:46:42,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:42,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:43,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-28 22:46:43,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:43,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136757712] [2021-10-28 22:46:43,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136757712] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:46:43,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603783492] [2021-10-28 22:46:43,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:43,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:46:43,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:46:43,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:46:43,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 22:46:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:43,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 22:46:43,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:46:44,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-28 22:46:44,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603783492] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:46:44,186 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:46:44,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-28 22:46:44,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922305996] [2021-10-28 22:46:44,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 22:46:44,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:44,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 22:46:44,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:46:44,191 INFO L87 Difference]: Start difference. First operand 4564 states and 6240 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:44,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:44,491 INFO L93 Difference]: Finished difference Result 8076 states and 11149 transitions. [2021-10-28 22:46:44,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 22:46:44,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2021-10-28 22:46:44,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:44,506 INFO L225 Difference]: With dead ends: 8076 [2021-10-28 22:46:44,506 INFO L226 Difference]: Without dead ends: 5679 [2021-10-28 22:46:44,511 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:46:44,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5679 states. [2021-10-28 22:46:44,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5679 to 4758. [2021-10-28 22:46:44,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4758 states, 4757 states have (on average 1.3727138953121716) internal successors, (6530), 4757 states have internal predecessors, (6530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:44,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4758 states to 4758 states and 6530 transitions. [2021-10-28 22:46:44,694 INFO L78 Accepts]: Start accepts. Automaton has 4758 states and 6530 transitions. Word has length 308 [2021-10-28 22:46:44,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:44,695 INFO L470 AbstractCegarLoop]: Abstraction has 4758 states and 6530 transitions. [2021-10-28 22:46:44,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:44,696 INFO L276 IsEmpty]: Start isEmpty. Operand 4758 states and 6530 transitions. [2021-10-28 22:46:44,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-10-28 22:46:44,709 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:44,709 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2021-10-28 22:46:44,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:46:44,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-28 22:46:44,931 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:44,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:44,932 INFO L85 PathProgramCache]: Analyzing trace with hash 105807153, now seen corresponding path program 1 times [2021-10-28 22:46:44,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:44,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85455885] [2021-10-28 22:46:44,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:44,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:45,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-28 22:46:45,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:45,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85455885] [2021-10-28 22:46:45,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85455885] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:46:45,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537954438] [2021-10-28 22:46:45,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:45,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:46:45,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:46:45,043 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:46:45,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 22:46:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:45,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 22:46:45,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:46:46,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-28 22:46:46,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537954438] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:46:46,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:46:46,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-28 22:46:46,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950628661] [2021-10-28 22:46:46,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 22:46:46,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:46,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 22:46:46,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:46:46,112 INFO L87 Difference]: Start difference. First operand 4758 states and 6530 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:46,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:46,379 INFO L93 Difference]: Finished difference Result 6043 states and 8330 transitions. [2021-10-28 22:46:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 22:46:46,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 309 [2021-10-28 22:46:46,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:46,385 INFO L225 Difference]: With dead ends: 6043 [2021-10-28 22:46:46,385 INFO L226 Difference]: Without dead ends: 2460 [2021-10-28 22:46:46,390 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:46:46,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2021-10-28 22:46:46,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 2460. [2021-10-28 22:46:46,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2460 states, 2459 states have (on average 1.3782025213501423) internal successors, (3389), 2459 states have internal predecessors, (3389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:46,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 3389 transitions. [2021-10-28 22:46:46,506 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 3389 transitions. Word has length 309 [2021-10-28 22:46:46,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:46,507 INFO L470 AbstractCegarLoop]: Abstraction has 2460 states and 3389 transitions. [2021-10-28 22:46:46,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:46,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 3389 transitions. [2021-10-28 22:46:46,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2021-10-28 22:46:46,517 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:46:46,517 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:46,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:46:46,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-28 22:46:46,743 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:46:46,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:46:46,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2136036892, now seen corresponding path program 1 times [2021-10-28 22:46:46,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:46:46,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128202473] [2021-10-28 22:46:46,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:46,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:46:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:46,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 649 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-10-28 22:46:46,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:46:46,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128202473] [2021-10-28 22:46:46,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128202473] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:46:46,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531635917] [2021-10-28 22:46:46,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:46:46,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:46:46,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:46:46,862 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:46:46,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 22:46:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:46:47,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 22:46:47,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:46:48,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 649 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-10-28 22:46:48,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531635917] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:46:48,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:46:48,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-28 22:46:48,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035453235] [2021-10-28 22:46:48,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 22:46:48,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:46:48,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 22:46:48,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:46:48,363 INFO L87 Difference]: Start difference. First operand 2460 states and 3389 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:48,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:46:48,599 INFO L93 Difference]: Finished difference Result 3515 states and 4790 transitions. [2021-10-28 22:46:48,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 22:46:48,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 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 334 [2021-10-28 22:46:48,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:46:48,601 INFO L225 Difference]: With dead ends: 3515 [2021-10-28 22:46:48,601 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 22:46:48,604 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:46:48,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 22:46:48,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 22:46:48,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:48,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 22:46:48,606 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 334 [2021-10-28 22:46:48,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:46:48,606 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:46:48,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:46:48,607 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 22:46:48,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 22:46:48,610 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:46:48,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 22:46:48,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-28 22:46:48,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 22:46:48,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:48,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:49,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:49,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:49,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:49,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:49,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:49,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:49,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:49,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:49,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:46:50,047 INFO L857 garLoopResultBuilder]: For program point L465(lines 465 471) no Hoare annotation was computed. [2021-10-28 22:46:50,048 INFO L860 garLoopResultBuilder]: At program point L201(lines 200 541) the Hoare annotation is: true [2021-10-28 22:46:50,048 INFO L853 garLoopResultBuilder]: At program point L135(lines 131 564) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) [2021-10-28 22:46:50,048 INFO L857 garLoopResultBuilder]: For program point L102(line 102) no Hoare annotation was computed. [2021-10-28 22:46:50,048 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 240) no Hoare annotation was computed. [2021-10-28 22:46:50,048 INFO L860 garLoopResultBuilder]: At program point L632(lines 624 634) the Hoare annotation is: true [2021-10-28 22:46:50,048 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 306) no Hoare annotation was computed. [2021-10-28 22:46:50,049 INFO L857 garLoopResultBuilder]: For program point L302-2(lines 302 306) no Hoare annotation was computed. [2021-10-28 22:46:50,049 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 551) no Hoare annotation was computed. [2021-10-28 22:46:50,049 INFO L857 garLoopResultBuilder]: For program point L137(lines 137 562) no Hoare annotation was computed. [2021-10-28 22:46:50,049 INFO L857 garLoopResultBuilder]: For program point L104(lines 104 573) no Hoare annotation was computed. [2021-10-28 22:46:50,049 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 439) no Hoare annotation was computed. [2021-10-28 22:46:50,049 INFO L857 garLoopResultBuilder]: For program point L435-2(lines 205 537) no Hoare annotation was computed. [2021-10-28 22:46:50,049 INFO L860 garLoopResultBuilder]: At program point L204(lines 203 540) the Hoare annotation is: true [2021-10-28 22:46:50,049 INFO L853 garLoopResultBuilder]: At program point L171(lines 167 552) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-10-28 22:46:50,050 INFO L853 garLoopResultBuilder]: At program point L105(lines 104 573) the Hoare annotation is: (let ((.cse0 (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse0) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)))) [2021-10-28 22:46:50,050 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 374) no Hoare annotation was computed. [2021-10-28 22:46:50,050 INFO L857 garLoopResultBuilder]: For program point L404(lines 404 409) no Hoare annotation was computed. [2021-10-28 22:46:50,050 INFO L857 garLoopResultBuilder]: For program point L404-2(lines 404 409) no Hoare annotation was computed. [2021-10-28 22:46:50,051 INFO L857 garLoopResultBuilder]: For program point L173(lines 173 550) no Hoare annotation was computed. [2021-10-28 22:46:50,051 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 561) no Hoare annotation was computed. [2021-10-28 22:46:50,051 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 572) no Hoare annotation was computed. [2021-10-28 22:46:50,051 INFO L853 garLoopResultBuilder]: At program point L141(lines 137 562) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-10-28 22:46:50,052 INFO L853 garLoopResultBuilder]: At program point L538(lines 101 604) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse4 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse5 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse3 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4))) (or (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4384) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1)) (and .cse0 .cse1 (not .cse2) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse3) (and .cse0 .cse1 .cse4 .cse5 .cse2 .cse3) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560) (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0) .cse4 .cse5 .cse2 .cse3) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse3) (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse3 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (<= ULTIMATE.start_ssl3_connect_~s__state~0 3))) [2021-10-28 22:46:50,052 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 84) no Hoare annotation was computed. [2021-10-28 22:46:50,052 INFO L860 garLoopResultBuilder]: At program point L605(lines 100 606) the Hoare annotation is: true [2021-10-28 22:46:50,052 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 549) no Hoare annotation was computed. [2021-10-28 22:46:50,052 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 560) no Hoare annotation was computed. [2021-10-28 22:46:50,053 INFO L857 garLoopResultBuilder]: For program point L110(lines 110 571) no Hoare annotation was computed. [2021-10-28 22:46:50,053 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 379) no Hoare annotation was computed. [2021-10-28 22:46:50,053 INFO L857 garLoopResultBuilder]: For program point L375-2(lines 375 379) no Hoare annotation was computed. [2021-10-28 22:46:50,053 INFO L853 garLoopResultBuilder]: At program point L210(lines 107 572) the Hoare annotation is: (or (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352))) [2021-10-28 22:46:50,053 INFO L853 garLoopResultBuilder]: At program point L177(lines 173 550) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-10-28 22:46:50,054 INFO L857 garLoopResultBuilder]: For program point L574(lines 574 602) no Hoare annotation was computed. [2021-10-28 22:46:50,054 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 83) no Hoare annotation was computed. [2021-10-28 22:46:50,054 INFO L857 garLoopResultBuilder]: For program point L79-2(lines 76 84) no Hoare annotation was computed. [2021-10-28 22:46:50,054 INFO L857 garLoopResultBuilder]: For program point L575(lines 575 599) no Hoare annotation was computed. [2021-10-28 22:46:50,054 INFO L857 garLoopResultBuilder]: For program point L509-1(lines 205 537) no Hoare annotation was computed. [2021-10-28 22:46:50,054 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 349) no Hoare annotation was computed. [2021-10-28 22:46:50,055 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 282) no Hoare annotation was computed. [2021-10-28 22:46:50,055 INFO L857 garLoopResultBuilder]: For program point L311-1(lines 311 325) no Hoare annotation was computed. [2021-10-28 22:46:50,055 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 548) no Hoare annotation was computed. [2021-10-28 22:46:50,055 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 559) no Hoare annotation was computed. [2021-10-28 22:46:50,055 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 570) no Hoare annotation was computed. [2021-10-28 22:46:50,055 INFO L857 garLoopResultBuilder]: For program point L609(lines 609 613) no Hoare annotation was computed. [2021-10-28 22:46:50,056 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 585) no Hoare annotation was computed. [2021-10-28 22:46:50,056 INFO L857 garLoopResultBuilder]: For program point L609-2(lines 609 613) no Hoare annotation was computed. [2021-10-28 22:46:50,056 INFO L857 garLoopResultBuilder]: For program point L576-2(lines 575 597) no Hoare annotation was computed. [2021-10-28 22:46:50,056 INFO L853 garLoopResultBuilder]: At program point L147(lines 143 560) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-10-28 22:46:50,056 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 582) no Hoare annotation was computed. [2021-10-28 22:46:50,057 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 451) no Hoare annotation was computed. [2021-10-28 22:46:50,057 INFO L857 garLoopResultBuilder]: For program point L215(lines 215 219) no Hoare annotation was computed. [2021-10-28 22:46:50,057 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 547) no Hoare annotation was computed. [2021-10-28 22:46:50,057 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 558) no Hoare annotation was computed. [2021-10-28 22:46:50,057 INFO L857 garLoopResultBuilder]: For program point L215-2(lines 205 537) no Hoare annotation was computed. [2021-10-28 22:46:50,057 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 569) no Hoare annotation was computed. [2021-10-28 22:46:50,058 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 484) no Hoare annotation was computed. [2021-10-28 22:46:50,058 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 319) no Hoare annotation was computed. [2021-10-28 22:46:50,058 INFO L857 garLoopResultBuilder]: For program point L315-2(lines 313 325) no Hoare annotation was computed. [2021-10-28 22:46:50,058 INFO L853 garLoopResultBuilder]: At program point L183(lines 179 548) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) [2021-10-28 22:46:50,058 INFO L857 garLoopResultBuilder]: For program point L514-1(lines 514 518) no Hoare annotation was computed. [2021-10-28 22:46:50,058 INFO L857 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2021-10-28 22:46:50,059 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 22:46:50,059 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 256) no Hoare annotation was computed. [2021-10-28 22:46:50,059 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 546) no Hoare annotation was computed. [2021-10-28 22:46:50,059 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 557) no Hoare annotation was computed. [2021-10-28 22:46:50,059 INFO L857 garLoopResultBuilder]: For program point L119(lines 119 568) no Hoare annotation was computed. [2021-10-28 22:46:50,059 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 94) no Hoare annotation was computed. [2021-10-28 22:46:50,060 INFO L857 garLoopResultBuilder]: For program point L86-1(lines 68 622) no Hoare annotation was computed. [2021-10-28 22:46:50,060 INFO L853 garLoopResultBuilder]: At program point L153(lines 149 558) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-10-28 22:46:50,060 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2021-10-28 22:46:50,060 INFO L857 garLoopResultBuilder]: For program point L485(lines 485 489) no Hoare annotation was computed. [2021-10-28 22:46:50,060 INFO L857 garLoopResultBuilder]: For program point L485-2(lines 485 489) no Hoare annotation was computed. [2021-10-28 22:46:50,060 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 295) no Hoare annotation was computed. [2021-10-28 22:46:50,061 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 545) no Hoare annotation was computed. [2021-10-28 22:46:50,061 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 556) no Hoare annotation was computed. [2021-10-28 22:46:50,061 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 567) no Hoare annotation was computed. [2021-10-28 22:46:50,061 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 391) no Hoare annotation was computed. [2021-10-28 22:46:50,061 INFO L857 garLoopResultBuilder]: For program point L354(lines 354 358) no Hoare annotation was computed. [2021-10-28 22:46:50,062 INFO L853 garLoopResultBuilder]: At program point L189(lines 185 546) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4))) (or (and (not (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) .cse0 .cse1) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560) .cse0 .cse1))) [2021-10-28 22:46:50,062 INFO L853 garLoopResultBuilder]: At program point L123(lines 119 568) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse1))) [2021-10-28 22:46:50,062 INFO L853 garLoopResultBuilder]: At program point L355(lines 68 622) the Hoare annotation is: false [2021-10-28 22:46:50,062 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 22:46:50,062 INFO L860 garLoopResultBuilder]: At program point L620(lines 68 622) the Hoare annotation is: true [2021-10-28 22:46:50,062 INFO L857 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2021-10-28 22:46:50,063 INFO L857 garLoopResultBuilder]: For program point L521(lines 521 525) no Hoare annotation was computed. [2021-10-28 22:46:50,063 INFO L857 garLoopResultBuilder]: For program point L521-2(lines 521 525) no Hoare annotation was computed. [2021-10-28 22:46:50,063 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 294) no Hoare annotation was computed. [2021-10-28 22:46:50,063 INFO L857 garLoopResultBuilder]: For program point L290-2(lines 205 537) no Hoare annotation was computed. [2021-10-28 22:46:50,063 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 544) no Hoare annotation was computed. [2021-10-28 22:46:50,063 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 555) no Hoare annotation was computed. [2021-10-28 22:46:50,063 INFO L857 garLoopResultBuilder]: For program point L125(lines 125 566) no Hoare annotation was computed. [2021-10-28 22:46:50,064 INFO L860 garLoopResultBuilder]: At program point L621(lines 10 623) the Hoare annotation is: true [2021-10-28 22:46:50,064 INFO L857 garLoopResultBuilder]: For program point L456(lines 456 460) no Hoare annotation was computed. [2021-10-28 22:46:50,064 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 22:46:50,064 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 363) no Hoare annotation was computed. [2021-10-28 22:46:50,064 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 244) no Hoare annotation was computed. [2021-10-28 22:46:50,064 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 543) no Hoare annotation was computed. [2021-10-28 22:46:50,065 INFO L857 garLoopResultBuilder]: For program point L161(lines 161 554) no Hoare annotation was computed. [2021-10-28 22:46:50,065 INFO L857 garLoopResultBuilder]: For program point L227-2(lines 205 537) no Hoare annotation was computed. [2021-10-28 22:46:50,065 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 565) no Hoare annotation was computed. [2021-10-28 22:46:50,065 INFO L853 garLoopResultBuilder]: At program point L195(lines 191 544) the Hoare annotation is: (or (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2))) [2021-10-28 22:46:50,065 INFO L853 garLoopResultBuilder]: At program point L129(lines 125 566) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) .cse1) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2021-10-28 22:46:50,065 INFO L857 garLoopResultBuilder]: For program point L493-1(lines 493 505) no Hoare annotation was computed. [2021-10-28 22:46:50,066 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 431) no Hoare annotation was computed. [2021-10-28 22:46:50,066 INFO L857 garLoopResultBuilder]: For program point L229(lines 229 234) no Hoare annotation was computed. [2021-10-28 22:46:50,066 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 542) no Hoare annotation was computed. [2021-10-28 22:46:50,066 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 553) no Hoare annotation was computed. [2021-10-28 22:46:50,066 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 564) no Hoare annotation was computed. [2021-10-28 22:46:50,066 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 22:46:50,067 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 616) no Hoare annotation was computed. [2021-10-28 22:46:50,067 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 532) no Hoare annotation was computed. [2021-10-28 22:46:50,067 INFO L853 garLoopResultBuilder]: At program point L198(lines 197 542) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse3 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352))) (or (and .cse0 .cse1 (not .cse2) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse3) (and .cse0 .cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2 .cse3) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)))) [2021-10-28 22:46:50,067 INFO L853 garLoopResultBuilder]: At program point L165(lines 155 556) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-10-28 22:46:50,067 INFO L857 garLoopResultBuilder]: For program point L496(lines 496 501) no Hoare annotation was computed. [2021-10-28 22:46:50,068 INFO L857 garLoopResultBuilder]: For program point L463(lines 463 474) no Hoare annotation was computed. [2021-10-28 22:46:50,068 INFO L857 garLoopResultBuilder]: For program point L463-1(lines 463 474) no Hoare annotation was computed. [2021-10-28 22:46:50,068 INFO L857 garLoopResultBuilder]: For program point L265(lines 265 269) no Hoare annotation was computed. [2021-10-28 22:46:50,068 INFO L857 garLoopResultBuilder]: For program point L265-2(lines 205 537) no Hoare annotation was computed. [2021-10-28 22:46:50,068 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 402) no Hoare annotation was computed. [2021-10-28 22:46:50,068 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 336) no Hoare annotation was computed. [2021-10-28 22:46:50,068 INFO L857 garLoopResultBuilder]: For program point L332-2(lines 205 537) no Hoare annotation was computed. [2021-10-28 22:46:50,069 INFO L857 garLoopResultBuilder]: For program point L200(lines 200 541) no Hoare annotation was computed. [2021-10-28 22:46:50,069 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 552) no Hoare annotation was computed. [2021-10-28 22:46:50,069 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 563) no Hoare annotation was computed. [2021-10-28 22:46:50,069 INFO L857 garLoopResultBuilder]: For program point L101-1(lines 68 622) no Hoare annotation was computed. [2021-10-28 22:46:50,072 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:46:50,074 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:46:50,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:46:50 BoogieIcfgContainer [2021-10-28 22:46:50,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:46:50,094 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:46:50,094 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:46:50,095 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:46:50,095 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:46:34" (3/4) ... [2021-10-28 22:46:50,098 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 22:46:50,113 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-28 22:46:50,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 22:46:50,115 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 22:46:50,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 22:46:50,226 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:46:50,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:46:50,228 INFO L168 Benchmark]: Toolchain (without parser) took 17030.23 ms. Allocated memory was 81.8 MB in the beginning and 333.4 MB in the end (delta: 251.7 MB). Free memory was 45.3 MB in the beginning and 197.7 MB in the end (delta: -152.3 MB). Peak memory consumption was 99.6 MB. Max. memory is 16.1 GB. [2021-10-28 22:46:50,228 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 81.8 MB. Free memory was 61.9 MB in the beginning and 61.8 MB in the end (delta: 34.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:46:50,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.13 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 45.1 MB in the beginning and 81.6 MB in the end (delta: -36.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:46:50,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.61 ms. Allocated memory is still 109.1 MB. Free memory was 81.6 MB in the beginning and 78.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:46:50,230 INFO L168 Benchmark]: Boogie Preprocessor took 80.67 ms. Allocated memory is still 109.1 MB. Free memory was 78.9 MB in the beginning and 76.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:46:50,231 INFO L168 Benchmark]: RCFGBuilder took 785.44 ms. Allocated memory is still 109.1 MB. Free memory was 76.6 MB in the beginning and 52.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:46:50,231 INFO L168 Benchmark]: TraceAbstraction took 15484.08 ms. Allocated memory was 109.1 MB in the beginning and 333.4 MB in the end (delta: 224.4 MB). Free memory was 52.2 MB in the beginning and 206.2 MB in the end (delta: -154.0 MB). Peak memory consumption was 166.8 MB. Max. memory is 16.1 GB. [2021-10-28 22:46:50,232 INFO L168 Benchmark]: Witness Printer took 132.20 ms. Allocated memory is still 333.4 MB. Free memory was 206.2 MB in the beginning and 197.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:46:50,235 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 81.8 MB. Free memory was 61.9 MB in the beginning and 61.8 MB in the end (delta: 34.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 427.13 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 45.1 MB in the beginning and 81.6 MB in the end (delta: -36.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 113.61 ms. Allocated memory is still 109.1 MB. Free memory was 81.6 MB in the beginning and 78.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.67 ms. Allocated memory is still 109.1 MB. Free memory was 78.9 MB in the beginning and 76.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 785.44 ms. Allocated memory is still 109.1 MB. Free memory was 76.6 MB in the beginning and 52.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15484.08 ms. Allocated memory was 109.1 MB in the beginning and 333.4 MB in the end (delta: 224.4 MB). Free memory was 52.2 MB in the beginning and 206.2 MB in the end (delta: -154.0 MB). Peak memory consumption was 166.8 MB. Max. memory is 16.1 GB. * Witness Printer took 132.20 ms. Allocated memory is still 333.4 MB. Free memory was 206.2 MB in the beginning and 197.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 616]: 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, 126 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.4s, OverallIterations: 24, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4609 SDtfs, 1688 SDslu, 2649 SDs, 0 SdLazy, 2114 SolverSat, 533 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1337 GetRequests, 1305 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4774occurred in iteration=19, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 24 MinimizatonAttempts, 1797 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 211 NumberOfFragments, 332 HoareAnnotationTreeSize, 23 FomulaSimplifications, 40040 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 23 FomulaSimplificationsInter, 1342 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 5691 NumberOfCodeBlocks, 5691 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 5663 ConstructedInterpolants, 0 QuantifiedInterpolants, 8073 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2495 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 28 InterpolantComputations, 21 PerfectInterpolantSequences, 17050/17120 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: 104]: Loop Invariant Derived loop invariant: (blastFlag == 0 && 12292 == s__state) || (12292 == s__state && blastFlag == 2) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: (s__state <= 4512 && 4432 <= s__state) && blastFlag <= 4 - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: ((!(s__hit == 0) && 4432 <= s__state) && blastFlag <= 4) || ((s__state <= 4560 && 4432 <= s__state) && blastFlag <= 4) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: (((((4352 <= s__state && s__state <= 4352) && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag <= 4) || (((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && blastFlag <= 4)) || ((4352 <= s__state && s__state <= 4352) && blastFlag == 2) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 2) && s__state <= 4432 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: ((4352 <= s__state && blastFlag == 2) && s__state <= 4432) || ((4352 <= s__state && blastFlag == 0) && s__state <= 4432) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (4432 <= s__state && s__hit == 0) || (4560 <= s__state && blastFlag == 2) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (4432 <= s__state && s__state <= 4464) && blastFlag <= 4 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: blastFlag == 2 || (blastFlag == 0 && s__state <= 4352) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (s__state <= 4512 && 4432 <= s__state) && blastFlag <= 4 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((((((((s__state == 4384 && blastFlag == 1) || ((((4352 <= s__state && s__state <= 4352) && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag <= 4)) || (((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && blastFlag <= 4)) || blastFlag == 2) || (blastFlag == 0 && s__state == 4368)) || (((((s__state <= 4560 && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && blastFlag <= 4)) || (s__state == 4416 && blastFlag <= 4)) || ((4432 <= s__state && blastFlag <= 4) && s__state <= 4528)) || s__state <= 3 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: (s__state <= 4480 && 4432 <= s__state) && blastFlag <= 4 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: ((4352 <= s__state && blastFlag == 1) && s__state <= 4432) || ((4352 <= s__state && blastFlag == 2) && s__state <= 4432) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (4352 <= s__state && s__state <= 4432) && blastFlag <= 4 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4528 - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (s__state <= 4448 && 4432 <= s__state) && blastFlag <= 4 RESULT: Ultimate proved your program to be correct! [2021-10-28 22:46:50,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fb19b2-9097-4b6f-a294-c865a2b87c9e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...