./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ffbcc3b4e73f8ad55a0649493c69e3be3f48518c4d71790476a2cf0516dec892 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:24:35,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:24:35,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:24:35,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:24:35,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:24:35,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:24:35,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:24:35,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:24:35,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:24:35,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:24:35,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:24:35,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:24:35,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:24:35,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:24:35,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:24:35,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:24:35,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:24:35,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:24:35,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:24:35,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:24:35,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:24:35,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:24:35,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:24:35,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:24:35,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:24:35,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:24:35,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:24:35,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:24:35,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:24:35,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:24:35,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:24:35,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:24:35,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:24:35,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:24:35,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:24:35,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:24:35,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:24:35,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:24:35,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:24:35,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:24:35,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:24:35,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 16:24:35,867 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:24:35,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:24:35,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:24:35,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:24:35,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:24:35,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:24:35,871 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:24:35,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:24:35,872 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:24:35,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:24:35,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:24:35,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:24:35,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:24:35,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:24:35,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:24:35,874 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:24:35,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:24:35,875 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:24:35,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:24:35,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:24:35,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:24:35,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:24:35,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:24:35,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:24:35,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:24:35,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:24:35,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:24:35,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:24:35,877 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:24:35,879 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:24:35,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:24:35,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:24:35,880 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_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffbcc3b4e73f8ad55a0649493c69e3be3f48518c4d71790476a2cf0516dec892 [2021-11-22 16:24:36,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:24:36,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:24:36,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:24:36,162 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:24:36,163 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:24:36,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/eca-rers2012/Problem11_label12.c [2021-11-22 16:24:36,268 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/data/26a222a94/fcc4267fb2f44591851ec407e4e2882c/FLAGd16bb2820 [2021-11-22 16:24:36,934 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:24:36,935 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/sv-benchmarks/c/eca-rers2012/Problem11_label12.c [2021-11-22 16:24:36,950 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/data/26a222a94/fcc4267fb2f44591851ec407e4e2882c/FLAGd16bb2820 [2021-11-22 16:24:37,120 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/data/26a222a94/fcc4267fb2f44591851ec407e4e2882c [2021-11-22 16:24:37,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:24:37,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:24:37,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:24:37,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:24:37,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:24:37,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:24:37" (1/1) ... [2021-11-22 16:24:37,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c34b9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:37, skipping insertion in model container [2021-11-22 16:24:37,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:24:37" (1/1) ... [2021-11-22 16:24:37,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:24:37,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:24:37,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/sv-benchmarks/c/eca-rers2012/Problem11_label12.c[3684,3697] [2021-11-22 16:24:37,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:24:37,885 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:24:37,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/sv-benchmarks/c/eca-rers2012/Problem11_label12.c[3684,3697] [2021-11-22 16:24:38,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:24:38,138 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:24:38,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:38 WrapperNode [2021-11-22 16:24:38,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:24:38,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:24:38,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:24:38,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:24:38,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:38" (1/1) ... [2021-11-22 16:24:38,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:38" (1/1) ... [2021-11-22 16:24:38,316 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-11-22 16:24:38,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:24:38,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:24:38,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:24:38,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:24:38,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:38" (1/1) ... [2021-11-22 16:24:38,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:38" (1/1) ... [2021-11-22 16:24:38,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:38" (1/1) ... [2021-11-22 16:24:38,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:38" (1/1) ... [2021-11-22 16:24:38,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:38" (1/1) ... [2021-11-22 16:24:38,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:38" (1/1) ... [2021-11-22 16:24:38,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:38" (1/1) ... [2021-11-22 16:24:38,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:24:38,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:24:38,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:24:38,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:24:38,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:38" (1/1) ... [2021-11-22 16:24:38,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:24:38,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:24:38,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:24:38,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:24:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:24:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:24:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:24:38,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:24:38,682 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:24:38,684 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:24:40,495 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:24:40,519 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:24:40,520 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 16:24:40,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:24:40 BoogieIcfgContainer [2021-11-22 16:24:40,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:24:40,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:24:40,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:24:40,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:24:40,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:24:37" (1/3) ... [2021-11-22 16:24:40,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6dc59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:24:40, skipping insertion in model container [2021-11-22 16:24:40,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:38" (2/3) ... [2021-11-22 16:24:40,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6dc59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:24:40, skipping insertion in model container [2021-11-22 16:24:40,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:24:40" (3/3) ... [2021-11-22 16:24:40,538 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label12.c [2021-11-22 16:24:40,544 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:24:40,544 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 16:24:40,619 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:24:40,629 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 16:24:40,629 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 16:24:40,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:40,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-22 16:24:40,662 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:40,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:40,663 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:40,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:40,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1225036359, now seen corresponding path program 1 times [2021-11-22 16:24:40,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:40,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360050790] [2021-11-22 16:24:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:40,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:40,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:40,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:40,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360050790] [2021-11-22 16:24:40,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360050790] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:40,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:40,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:24:40,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831332851] [2021-11-22 16:24:40,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:40,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:24:40,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:40,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:24:40,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:40,924 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 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) [2021-11-22 16:24:42,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:42,225 INFO L93 Difference]: Finished difference Result 769 states and 1360 transitions. [2021-11-22 16:24:42,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:24:42,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 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 [2021-11-22 16:24:42,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:42,256 INFO L225 Difference]: With dead ends: 769 [2021-11-22 16:24:42,257 INFO L226 Difference]: Without dead ends: 422 [2021-11-22 16:24:42,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:42,271 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 215 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:42,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 163 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-22 16:24:42,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-11-22 16:24:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2021-11-22 16:24:42,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 1.5231143552311435) internal successors, (626), 411 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:42,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2021-11-22 16:24:42,368 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 25 [2021-11-22 16:24:42,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:42,369 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2021-11-22 16:24:42,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 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) [2021-11-22 16:24:42,369 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2021-11-22 16:24:42,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 16:24:42,375 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:42,376 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:42,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 16:24:42,377 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:42,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:42,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1252337339, now seen corresponding path program 1 times [2021-11-22 16:24:42,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:42,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657503380] [2021-11-22 16:24:42,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:42,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:42,655 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:42,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:42,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657503380] [2021-11-22 16:24:42,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657503380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:42,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:42,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:24:42,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176406775] [2021-11-22 16:24:42,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:42,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:24:42,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:42,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:24:42,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:42,660 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:43,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:43,477 INFO L93 Difference]: Finished difference Result 1194 states and 1821 transitions. [2021-11-22 16:24:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:24:43,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-11-22 16:24:43,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:43,483 INFO L225 Difference]: With dead ends: 1194 [2021-11-22 16:24:43,484 INFO L226 Difference]: Without dead ends: 784 [2021-11-22 16:24:43,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:43,486 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 175 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:43,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 154 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:24:43,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2021-11-22 16:24:43,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2021-11-22 16:24:43,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.3742017879948913) internal successors, (1076), 783 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:43,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1076 transitions. [2021-11-22 16:24:43,524 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1076 transitions. Word has length 91 [2021-11-22 16:24:43,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:43,526 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1076 transitions. [2021-11-22 16:24:43,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:43,527 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1076 transitions. [2021-11-22 16:24:43,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-22 16:24:43,533 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:43,533 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:43,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 16:24:43,535 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:43,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:43,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1061626683, now seen corresponding path program 1 times [2021-11-22 16:24:43,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:43,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277311890] [2021-11-22 16:24:43,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:43,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:43,710 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:43,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:43,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277311890] [2021-11-22 16:24:43,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277311890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:43,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:43,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:24:43,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758960072] [2021-11-22 16:24:43,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:43,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:24:43,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:43,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:24:43,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:43,718 INFO L87 Difference]: Start difference. First operand 784 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 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) [2021-11-22 16:24:44,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:44,763 INFO L93 Difference]: Finished difference Result 1936 states and 2599 transitions. [2021-11-22 16:24:44,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:24:44,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 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 95 [2021-11-22 16:24:44,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:44,772 INFO L225 Difference]: With dead ends: 1936 [2021-11-22 16:24:44,773 INFO L226 Difference]: Without dead ends: 1154 [2021-11-22 16:24:44,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:44,776 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:44,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 190 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-22 16:24:44,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2021-11-22 16:24:44,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1153. [2021-11-22 16:24:44,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.2699652777777777) internal successors, (1463), 1152 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:44,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1463 transitions. [2021-11-22 16:24:44,828 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1463 transitions. Word has length 95 [2021-11-22 16:24:44,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:44,829 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 1463 transitions. [2021-11-22 16:24:44,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 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) [2021-11-22 16:24:44,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1463 transitions. [2021-11-22 16:24:44,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-22 16:24:44,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:44,835 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:44,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 16:24:44,835 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:44,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:44,836 INFO L85 PathProgramCache]: Analyzing trace with hash -2063439108, now seen corresponding path program 1 times [2021-11-22 16:24:44,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:44,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128808280] [2021-11-22 16:24:44,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:44,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-22 16:24:45,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:45,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128808280] [2021-11-22 16:24:45,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128808280] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:45,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:45,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:24:45,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789147863] [2021-11-22 16:24:45,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:45,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:24:45,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:45,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:24:45,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:45,051 INFO L87 Difference]: Start difference. First operand 1153 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:45,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:45,888 INFO L93 Difference]: Finished difference Result 2494 states and 3189 transitions. [2021-11-22 16:24:45,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:24:45,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-11-22 16:24:45,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:45,903 INFO L225 Difference]: With dead ends: 2494 [2021-11-22 16:24:45,904 INFO L226 Difference]: Without dead ends: 1527 [2021-11-22 16:24:45,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:45,908 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 106 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:45,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 154 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:24:45,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2021-11-22 16:24:45,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2021-11-22 16:24:45,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1525 states have (on average 1.2557377049180327) internal successors, (1915), 1525 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:45,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1915 transitions. [2021-11-22 16:24:45,977 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1915 transitions. Word has length 137 [2021-11-22 16:24:45,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:45,978 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 1915 transitions. [2021-11-22 16:24:45,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:45,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1915 transitions. [2021-11-22 16:24:45,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-22 16:24:45,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:45,982 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:45,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 16:24:45,982 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:45,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:45,983 INFO L85 PathProgramCache]: Analyzing trace with hash 215435237, now seen corresponding path program 1 times [2021-11-22 16:24:45,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:45,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833984858] [2021-11-22 16:24:45,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:45,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:46,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:46,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833984858] [2021-11-22 16:24:46,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833984858] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:46,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:46,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:24:46,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118769448] [2021-11-22 16:24:46,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:46,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:24:46,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:46,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:24:46,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:46,160 INFO L87 Difference]: Start difference. First operand 1526 states and 1915 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:47,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:47,121 INFO L93 Difference]: Finished difference Result 2864 states and 3636 transitions. [2021-11-22 16:24:47,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:24:47,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2021-11-22 16:24:47,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:47,137 INFO L225 Difference]: With dead ends: 2864 [2021-11-22 16:24:47,137 INFO L226 Difference]: Without dead ends: 1524 [2021-11-22 16:24:47,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:47,151 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 210 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:47,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 306 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-22 16:24:47,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2021-11-22 16:24:47,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1524. [2021-11-22 16:24:47,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 1523 states have (on average 1.2107682206172028) internal successors, (1844), 1523 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:47,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 1844 transitions. [2021-11-22 16:24:47,204 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 1844 transitions. Word has length 152 [2021-11-22 16:24:47,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:47,205 INFO L470 AbstractCegarLoop]: Abstraction has 1524 states and 1844 transitions. [2021-11-22 16:24:47,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:47,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 1844 transitions. [2021-11-22 16:24:47,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-22 16:24:47,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:47,220 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:47,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 16:24:47,221 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:47,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:47,223 INFO L85 PathProgramCache]: Analyzing trace with hash -422181944, now seen corresponding path program 1 times [2021-11-22 16:24:47,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:47,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127472510] [2021-11-22 16:24:47,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:47,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:47,423 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-22 16:24:47,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:47,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127472510] [2021-11-22 16:24:47,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127472510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:47,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:47,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:24:47,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326720725] [2021-11-22 16:24:47,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:47,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:24:47,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:47,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:24:47,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:47,428 INFO L87 Difference]: Start difference. First operand 1524 states and 1844 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:48,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:48,484 INFO L93 Difference]: Finished difference Result 3603 states and 4427 transitions. [2021-11-22 16:24:48,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:24:48,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2021-11-22 16:24:48,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:48,498 INFO L225 Difference]: With dead ends: 3603 [2021-11-22 16:24:48,499 INFO L226 Difference]: Without dead ends: 2265 [2021-11-22 16:24:48,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:48,502 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 172 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:48,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 386 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-22 16:24:48,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2021-11-22 16:24:48,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2076. [2021-11-22 16:24:48,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2076 states, 2075 states have (on average 1.192289156626506) internal successors, (2474), 2075 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:48,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2474 transitions. [2021-11-22 16:24:48,574 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2474 transitions. Word has length 207 [2021-11-22 16:24:48,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:48,575 INFO L470 AbstractCegarLoop]: Abstraction has 2076 states and 2474 transitions. [2021-11-22 16:24:48,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:48,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2474 transitions. [2021-11-22 16:24:48,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-22 16:24:48,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:48,580 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:48,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 16:24:48,580 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:48,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:48,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1594072215, now seen corresponding path program 1 times [2021-11-22 16:24:48,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:48,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585167371] [2021-11-22 16:24:48,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:48,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:48,749 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-22 16:24:48,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:48,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585167371] [2021-11-22 16:24:48,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585167371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:48,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:48,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:24:48,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326197912] [2021-11-22 16:24:48,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:48,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:24:48,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:48,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:24:48,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:48,753 INFO L87 Difference]: Start difference. First operand 2076 states and 2474 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:49,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:49,790 INFO L93 Difference]: Finished difference Result 4890 states and 5877 transitions. [2021-11-22 16:24:49,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:24:49,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2021-11-22 16:24:49,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:49,812 INFO L225 Difference]: With dead ends: 4890 [2021-11-22 16:24:49,813 INFO L226 Difference]: Without dead ends: 2816 [2021-11-22 16:24:49,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:49,819 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 171 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:49,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 387 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-22 16:24:49,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2021-11-22 16:24:49,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 2811. [2021-11-22 16:24:49,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 2810 states have (on average 1.1736654804270463) internal successors, (3298), 2810 states have internal predecessors, (3298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:49,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 3298 transitions. [2021-11-22 16:24:49,889 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 3298 transitions. Word has length 213 [2021-11-22 16:24:49,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:49,890 INFO L470 AbstractCegarLoop]: Abstraction has 2811 states and 3298 transitions. [2021-11-22 16:24:49,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 3298 transitions. [2021-11-22 16:24:49,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-11-22 16:24:49,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:49,896 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:49,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 16:24:49,896 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:49,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:49,898 INFO L85 PathProgramCache]: Analyzing trace with hash -336607869, now seen corresponding path program 1 times [2021-11-22 16:24:49,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:49,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406569095] [2021-11-22 16:24:49,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:49,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:50,101 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:50,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:50,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406569095] [2021-11-22 16:24:50,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406569095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:50,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:50,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:24:50,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905212128] [2021-11-22 16:24:50,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:50,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:24:50,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:50,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:24:50,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:24:50,105 INFO L87 Difference]: Start difference. First operand 2811 states and 3298 transitions. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:51,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:51,599 INFO L93 Difference]: Finished difference Result 8956 states and 10588 transitions. [2021-11-22 16:24:51,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:24:51,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 252 [2021-11-22 16:24:51,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:51,633 INFO L225 Difference]: With dead ends: 8956 [2021-11-22 16:24:51,633 INFO L226 Difference]: Without dead ends: 6147 [2021-11-22 16:24:51,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:24:51,638 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 285 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:51,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 78 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-22 16:24:51,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6147 states. [2021-11-22 16:24:51,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6147 to 5961. [2021-11-22 16:24:51,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5961 states, 5960 states have (on average 1.1758389261744966) internal successors, (7008), 5960 states have internal predecessors, (7008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:51,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5961 states to 5961 states and 7008 transitions. [2021-11-22 16:24:51,781 INFO L78 Accepts]: Start accepts. Automaton has 5961 states and 7008 transitions. Word has length 252 [2021-11-22 16:24:51,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:51,782 INFO L470 AbstractCegarLoop]: Abstraction has 5961 states and 7008 transitions. [2021-11-22 16:24:51,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:51,783 INFO L276 IsEmpty]: Start isEmpty. Operand 5961 states and 7008 transitions. [2021-11-22 16:24:51,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-22 16:24:51,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:51,795 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:51,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 16:24:51,796 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:51,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:51,797 INFO L85 PathProgramCache]: Analyzing trace with hash 400013300, now seen corresponding path program 1 times [2021-11-22 16:24:51,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:51,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294661495] [2021-11-22 16:24:51,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:51,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2021-11-22 16:24:51,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:51,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294661495] [2021-11-22 16:24:51,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294661495] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:51,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:51,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:24:51,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576177628] [2021-11-22 16:24:51,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:51,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:24:51,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:51,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:24:51,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:51,957 INFO L87 Difference]: Start difference. First operand 5961 states and 7008 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:52,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:52,831 INFO L93 Difference]: Finished difference Result 12099 states and 14259 transitions. [2021-11-22 16:24:52,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:24:52,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 290 [2021-11-22 16:24:52,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:52,867 INFO L225 Difference]: With dead ends: 12099 [2021-11-22 16:24:52,868 INFO L226 Difference]: Without dead ends: 7248 [2021-11-22 16:24:52,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:52,873 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 197 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:52,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 146 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-22 16:24:52,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7248 states. [2021-11-22 16:24:52,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7248 to 4664. [2021-11-22 16:24:52,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4664 states, 4663 states have (on average 1.1799270855672315) internal successors, (5502), 4663 states have internal predecessors, (5502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:52,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4664 states to 4664 states and 5502 transitions. [2021-11-22 16:24:52,994 INFO L78 Accepts]: Start accepts. Automaton has 4664 states and 5502 transitions. Word has length 290 [2021-11-22 16:24:52,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:52,995 INFO L470 AbstractCegarLoop]: Abstraction has 4664 states and 5502 transitions. [2021-11-22 16:24:52,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:52,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4664 states and 5502 transitions. [2021-11-22 16:24:53,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-11-22 16:24:53,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:53,004 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:53,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 16:24:53,004 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:53,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:53,005 INFO L85 PathProgramCache]: Analyzing trace with hash 441780138, now seen corresponding path program 1 times [2021-11-22 16:24:53,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:53,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493871882] [2021-11-22 16:24:53,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:53,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:53,271 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 113 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:53,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:53,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493871882] [2021-11-22 16:24:53,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493871882] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:24:53,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246729809] [2021-11-22 16:24:53,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:53,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:53,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:24:53,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:24:53,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 16:24:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:53,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 16:24:53,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:24:54,188 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:54,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 16:24:54,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246729809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:54,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 16:24:54,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-22 16:24:54,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026725378] [2021-11-22 16:24:54,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:54,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:24:54,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:54,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:24:54,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:24:54,192 INFO L87 Difference]: Start difference. First operand 4664 states and 5502 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:55,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:55,169 INFO L93 Difference]: Finished difference Result 9154 states and 10832 transitions. [2021-11-22 16:24:55,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:24:55,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 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 299 [2021-11-22 16:24:55,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:55,213 INFO L225 Difference]: With dead ends: 9154 [2021-11-22 16:24:55,221 INFO L226 Difference]: Without dead ends: 4860 [2021-11-22 16:24:55,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:24:55,229 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 49 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:55,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 291 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-22 16:24:55,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4860 states. [2021-11-22 16:24:55,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4860 to 4664. [2021-11-22 16:24:55,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4664 states, 4663 states have (on average 1.1580527557366502) internal successors, (5400), 4663 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:55,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4664 states to 4664 states and 5400 transitions. [2021-11-22 16:24:55,356 INFO L78 Accepts]: Start accepts. Automaton has 4664 states and 5400 transitions. Word has length 299 [2021-11-22 16:24:55,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:55,357 INFO L470 AbstractCegarLoop]: Abstraction has 4664 states and 5400 transitions. [2021-11-22 16:24:55,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:55,358 INFO L276 IsEmpty]: Start isEmpty. Operand 4664 states and 5400 transitions. [2021-11-22 16:24:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-11-22 16:24:55,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:55,367 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:55,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 16:24:55,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-22 16:24:55,580 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:55,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:55,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1087462780, now seen corresponding path program 1 times [2021-11-22 16:24:55,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:55,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359691313] [2021-11-22 16:24:55,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:55,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:55,721 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-22 16:24:55,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:55,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359691313] [2021-11-22 16:24:55,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359691313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:55,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:55,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:24:55,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97551169] [2021-11-22 16:24:55,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:55,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:24:55,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:55,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:24:55,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:55,724 INFO L87 Difference]: Start difference. First operand 4664 states and 5400 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:56,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:56,586 INFO L93 Difference]: Finished difference Result 11921 states and 13929 transitions. [2021-11-22 16:24:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:24:56,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 319 [2021-11-22 16:24:56,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:56,602 INFO L225 Difference]: With dead ends: 11921 [2021-11-22 16:24:56,602 INFO L226 Difference]: Without dead ends: 7627 [2021-11-22 16:24:56,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:24:56,608 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 139 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:56,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 131 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:24:56,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7627 states. [2021-11-22 16:24:56,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7627 to 7441. [2021-11-22 16:24:56,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7441 states, 7440 states have (on average 1.1456989247311828) internal successors, (8524), 7440 states have internal predecessors, (8524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:56,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7441 states to 7441 states and 8524 transitions. [2021-11-22 16:24:56,782 INFO L78 Accepts]: Start accepts. Automaton has 7441 states and 8524 transitions. Word has length 319 [2021-11-22 16:24:56,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:56,783 INFO L470 AbstractCegarLoop]: Abstraction has 7441 states and 8524 transitions. [2021-11-22 16:24:56,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:56,784 INFO L276 IsEmpty]: Start isEmpty. Operand 7441 states and 8524 transitions. [2021-11-22 16:24:56,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-22 16:24:56,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:56,796 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:56,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 16:24:56,797 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:56,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:56,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2117266511, now seen corresponding path program 1 times [2021-11-22 16:24:56,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:56,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31806261] [2021-11-22 16:24:56,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:56,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:56,995 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:56,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:56,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31806261] [2021-11-22 16:24:56,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31806261] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:56,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:56,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:24:56,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195660670] [2021-11-22 16:24:56,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:56,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:24:56,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:56,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:24:56,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:24:56,998 INFO L87 Difference]: Start difference. First operand 7441 states and 8524 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:58,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:58,383 INFO L93 Difference]: Finished difference Result 18754 states and 21561 transitions. [2021-11-22 16:24:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:24:58,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 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 330 [2021-11-22 16:24:58,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:58,404 INFO L225 Difference]: With dead ends: 18754 [2021-11-22 16:24:58,404 INFO L226 Difference]: Without dead ends: 11683 [2021-11-22 16:24:58,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:24:58,413 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 265 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:58,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 63 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-22 16:24:58,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11683 states. [2021-11-22 16:24:58,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11683 to 10208. [2021-11-22 16:24:58,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10208 states, 10207 states have (on average 1.1299108454981874) internal successors, (11533), 10207 states have internal predecessors, (11533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10208 states to 10208 states and 11533 transitions. [2021-11-22 16:24:58,642 INFO L78 Accepts]: Start accepts. Automaton has 10208 states and 11533 transitions. Word has length 330 [2021-11-22 16:24:58,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:58,643 INFO L470 AbstractCegarLoop]: Abstraction has 10208 states and 11533 transitions. [2021-11-22 16:24:58,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:58,643 INFO L276 IsEmpty]: Start isEmpty. Operand 10208 states and 11533 transitions. [2021-11-22 16:24:58,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-11-22 16:24:58,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:58,667 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:58,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-22 16:24:58,667 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:24:58,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:58,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1773560037, now seen corresponding path program 1 times [2021-11-22 16:24:58,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:58,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662976052] [2021-11-22 16:24:58,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:58,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:58,885 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-22 16:24:58,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:58,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662976052] [2021-11-22 16:24:58,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662976052] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:58,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:58,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:24:58,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687951856] [2021-11-22 16:24:58,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:58,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:24:58,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:58,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:24:58,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:24:58,889 INFO L87 Difference]: Start difference. First operand 10208 states and 11533 transitions. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:25:00,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:25:00,329 INFO L93 Difference]: Finished difference Result 21889 states and 24775 transitions. [2021-11-22 16:25:00,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:25:00,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 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 404 [2021-11-22 16:25:00,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:25:00,350 INFO L225 Difference]: With dead ends: 21889 [2021-11-22 16:25:00,350 INFO L226 Difference]: Without dead ends: 12051 [2021-11-22 16:25:00,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:25:00,361 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 281 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-22 16:25:00,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 63 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-22 16:25:00,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12051 states. [2021-11-22 16:25:00,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12051 to 10208. [2021-11-22 16:25:00,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10208 states, 10207 states have (on average 1.1299108454981874) internal successors, (11533), 10207 states have internal predecessors, (11533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:25:00,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10208 states to 10208 states and 11533 transitions. [2021-11-22 16:25:00,597 INFO L78 Accepts]: Start accepts. Automaton has 10208 states and 11533 transitions. Word has length 404 [2021-11-22 16:25:00,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:25:00,598 INFO L470 AbstractCegarLoop]: Abstraction has 10208 states and 11533 transitions. [2021-11-22 16:25:00,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:25:00,598 INFO L276 IsEmpty]: Start isEmpty. Operand 10208 states and 11533 transitions. [2021-11-22 16:25:00,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2021-11-22 16:25:00,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:25:00,623 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:25:00,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-22 16:25:00,623 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:25:00,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:25:00,624 INFO L85 PathProgramCache]: Analyzing trace with hash 466310158, now seen corresponding path program 1 times [2021-11-22 16:25:00,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:25:00,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075864587] [2021-11-22 16:25:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:25:00,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:25:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:25:00,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1571 backedges. 942 proven. 0 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2021-11-22 16:25:00,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:25:00,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075864587] [2021-11-22 16:25:00,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075864587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:25:00,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:25:00,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:25:00,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520169444] [2021-11-22 16:25:00,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:25:00,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:25:00,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:25:00,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:25:00,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:25:00,930 INFO L87 Difference]: Start difference. First operand 10208 states and 11533 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:25:01,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:25:01,754 INFO L93 Difference]: Finished difference Result 21886 states and 24770 transitions. [2021-11-22 16:25:01,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:25:01,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 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 733 [2021-11-22 16:25:01,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:25:01,784 INFO L225 Difference]: With dead ends: 21886 [2021-11-22 16:25:01,784 INFO L226 Difference]: Without dead ends: 10942 [2021-11-22 16:25:01,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:25:01,798 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 194 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-22 16:25:01,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 368 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-22 16:25:01,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10942 states. [2021-11-22 16:25:01,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10942 to 10942. [2021-11-22 16:25:01,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10942 states, 10941 states have (on average 1.110318983639521) internal successors, (12148), 10941 states have internal predecessors, (12148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:25:01,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10942 states to 10942 states and 12148 transitions. [2021-11-22 16:25:01,990 INFO L78 Accepts]: Start accepts. Automaton has 10942 states and 12148 transitions. Word has length 733 [2021-11-22 16:25:01,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:25:01,991 INFO L470 AbstractCegarLoop]: Abstraction has 10942 states and 12148 transitions. [2021-11-22 16:25:01,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:25:01,992 INFO L276 IsEmpty]: Start isEmpty. Operand 10942 states and 12148 transitions. [2021-11-22 16:25:02,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2021-11-22 16:25:02,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:25:02,017 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:25:02,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-22 16:25:02,018 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:25:02,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:25:02,018 INFO L85 PathProgramCache]: Analyzing trace with hash -2017374476, now seen corresponding path program 1 times [2021-11-22 16:25:02,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:25:02,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679522940] [2021-11-22 16:25:02,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:25:02,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:25:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:25:02,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1393 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2021-11-22 16:25:02,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:25:02,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679522940] [2021-11-22 16:25:02,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679522940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:25:02,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:25:02,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:25:02,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057860406] [2021-11-22 16:25:02,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:25:02,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:25:02,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:25:02,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:25:02,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:25:02,381 INFO L87 Difference]: Start difference. First operand 10942 states and 12148 transitions. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:25:03,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:25:03,209 INFO L93 Difference]: Finished difference Result 22615 states and 25117 transitions. [2021-11-22 16:25:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:25:03,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 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 823 [2021-11-22 16:25:03,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:25:03,212 INFO L225 Difference]: With dead ends: 22615 [2021-11-22 16:25:03,212 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 16:25:03,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:25:03,224 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 59 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:25:03,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 343 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:25:03,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 16:25:03,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 16:25:03,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:25:03,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 16:25:03,225 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 823 [2021-11-22 16:25:03,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:25:03,226 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:25:03,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:25:03,226 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 16:25:03,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 16:25:03,229 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 16:25:03,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-22 16:25:03,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 16:25:06,348 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-11-22 16:25:06,349 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,349 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-11-22 16:25:06,349 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,349 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,349 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,349 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,349 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,349 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,349 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-11-22 16:25:06,350 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-11-22 16:25:06,350 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-11-22 16:25:06,350 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,350 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,350 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,350 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,351 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,351 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,351 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,351 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,351 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,351 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,351 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-11-22 16:25:06,352 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-11-22 16:25:06,353 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,353 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,353 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,353 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse3 (= ~a25~0 11)) (.cse4 (= ~a25~0 13)) (.cse6 (<= ~a23~0 138)) (.cse7 (<= ~a29~0 220)) (.cse8 (<= ~a25~0 10)) (.cse5 (<= ~a29~0 599999)) (.cse1 (= ~a4~0 1)) (.cse9 (+ ~a23~0 43)) (.cse2 (= ~a4~0 0)) (.cse0 (<= ~a29~0 599998))) (or (and (<= 307 ~a23~0) .cse0 .cse1) (and .cse2 .cse0 (<= 12 ~a25~0)) (and .cse2 .cse3 .cse0 (<= ~a23~0 312)) (and .cse4 .cse0 .cse1) (and .cse3 .cse5 .cse1) (and .cse4 .cse5 (<= (+ ~a23~0 599772) 0) .cse1) (and .cse2 .cse6 .cse7) (and .cse2 (<= (+ ~a29~0 22) 0) .cse8) (and (< 0 .cse9) .cse8 .cse6 .cse1) (and .cse7 .cse1) (and .cse8 .cse5 .cse1) (and (<= .cse9 0) .cse2 .cse0))) [2021-11-22 16:25:06,353 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,354 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-11-22 16:25:06,354 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-11-22 16:25:06,354 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,354 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,354 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,354 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,354 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,355 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,355 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-11-22 16:25:06,355 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-11-22 16:25:06,355 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-11-22 16:25:06,355 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-11-22 16:25:06,355 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,356 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,356 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,356 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,356 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,356 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,356 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,356 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-11-22 16:25:06,357 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-11-22 16:25:06,357 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-11-22 16:25:06,357 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,357 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,357 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,357 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,357 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,358 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,358 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,358 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,358 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,358 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-11-22 16:25:06,358 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-11-22 16:25:06,358 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-11-22 16:25:06,359 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,359 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse3 (= ~a25~0 11)) (.cse4 (= ~a25~0 13)) (.cse6 (<= ~a23~0 138)) (.cse7 (<= ~a29~0 220)) (.cse8 (<= ~a25~0 10)) (.cse5 (<= ~a29~0 599999)) (.cse1 (= ~a4~0 1)) (.cse9 (+ ~a23~0 43)) (.cse2 (= ~a4~0 0)) (.cse0 (<= ~a29~0 599998))) (or (and (<= 307 ~a23~0) .cse0 .cse1) (and .cse2 .cse0 (<= 12 ~a25~0)) (and .cse2 .cse3 .cse0 (<= ~a23~0 312)) (and .cse4 .cse0 .cse1) (and .cse3 .cse5 .cse1) (and .cse4 .cse5 (<= (+ ~a23~0 599772) 0) .cse1) (and .cse2 .cse6 .cse7) (and .cse2 (<= (+ ~a29~0 22) 0) .cse8) (and (< 0 .cse9) .cse8 .cse6 .cse1) (and .cse7 .cse1) (and .cse8 .cse5 .cse1) (and (<= .cse9 0) .cse2 .cse0))) [2021-11-22 16:25:06,359 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,359 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,359 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,360 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,360 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,360 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,360 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,360 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,360 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-11-22 16:25:06,360 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-11-22 16:25:06,361 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-11-22 16:25:06,361 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-11-22 16:25:06,361 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-11-22 16:25:06,361 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-11-22 16:25:06,361 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-11-22 16:25:06,361 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,361 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,362 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,362 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,362 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,362 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,362 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,362 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,363 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,363 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,363 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 16:25:06,363 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-11-22 16:25:06,363 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-11-22 16:25:06,363 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-11-22 16:25:06,363 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-11-22 16:25:06,364 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,364 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,364 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,364 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,364 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,364 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-11-22 16:25:06,364 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-11-22 16:25:06,365 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-11-22 16:25:06,365 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,365 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,365 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,365 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,365 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-11-22 16:25:06,366 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-11-22 16:25:06,366 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,366 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,366 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,366 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,366 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,366 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,367 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-11-22 16:25:06,367 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-11-22 16:25:06,367 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,367 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,367 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-11-22 16:25:06,367 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-11-22 16:25:06,368 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-11-22 16:25:06,368 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 16:25:06,368 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2021-11-22 16:25:06,368 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,368 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,368 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,368 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,369 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,369 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,369 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,369 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-11-22 16:25:06,369 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-11-22 16:25:06,369 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-11-22 16:25:06,369 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-11-22 16:25:06,370 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-11-22 16:25:06,370 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-11-22 16:25:06,370 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-11-22 16:25:06,370 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,370 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,370 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-11-22 16:25:06,370 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-11-22 16:25:06,371 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,371 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,371 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,371 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,371 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,371 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-11-22 16:25:06,371 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-11-22 16:25:06,372 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-11-22 16:25:06,372 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,372 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,372 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,372 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,372 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,373 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,373 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-11-22 16:25:06,373 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-11-22 16:25:06,373 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-11-22 16:25:06,373 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,373 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,373 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,374 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,374 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,374 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,374 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,374 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,374 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-11-22 16:25:06,375 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-11-22 16:25:06,375 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-11-22 16:25:06,375 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,375 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,375 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,375 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,375 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,376 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,376 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,376 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,376 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,376 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,376 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,376 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-11-22 16:25:06,377 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-11-22 16:25:06,377 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-22 16:25:06,377 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-11-22 16:25:06,377 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-11-22 16:25:06,377 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,377 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,378 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,378 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,378 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,378 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,378 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,378 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-11-22 16:25:06,378 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-11-22 16:25:06,378 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-11-22 16:25:06,378 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,378 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,378 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,379 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-11-22 16:25:06,379 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-11-22 16:25:06,379 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,379 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,379 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,379 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,379 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,379 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-11-22 16:25:06,379 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-11-22 16:25:06,379 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-11-22 16:25:06,380 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-11-22 16:25:06,381 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,381 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,381 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,381 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,381 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,381 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,381 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,381 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,381 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-11-22 16:25:06,381 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-11-22 16:25:06,381 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-11-22 16:25:06,382 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-11-22 16:25:06,382 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-11-22 16:25:06,382 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-11-22 16:25:06,382 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,382 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,382 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,382 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,383 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,383 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,383 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,383 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-11-22 16:25:06,383 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-11-22 16:25:06,383 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 16:25:06,383 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,384 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,384 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,384 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,384 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,384 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,384 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-11-22 16:25:06,385 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-11-22 16:25:06,385 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,385 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,385 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,385 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,385 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,385 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,385 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,386 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-11-22 16:25:06,386 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-11-22 16:25:06,386 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,386 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,386 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-11-22 16:25:06,386 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-11-22 16:25:06,386 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-11-22 16:25:06,387 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-11-22 16:25:06,390 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:25:06,391 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 16:25:06,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 04:25:06 BoogieIcfgContainer [2021-11-22 16:25:06,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 16:25:06,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:25:06,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:25:06,411 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:25:06,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:24:40" (3/4) ... [2021-11-22 16:25:06,414 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 16:25:06,440 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-22 16:25:06,442 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-22 16:25:06,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 16:25:06,446 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 16:25:06,587 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 16:25:06,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:25:06,588 INFO L158 Benchmark]: Toolchain (without parser) took 29463.24ms. Allocated memory was 123.7MB in the beginning and 480.2MB in the end (delta: 356.5MB). Free memory was 85.7MB in the beginning and 271.7MB in the end (delta: -186.0MB). Peak memory consumption was 168.7MB. Max. memory is 16.1GB. [2021-11-22 16:25:06,588 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 123.7MB. Free memory was 99.8MB in the beginning and 99.7MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:25:06,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1011.53ms. Allocated memory is still 123.7MB. Free memory was 85.7MB in the beginning and 66.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-22 16:25:06,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 175.48ms. Allocated memory is still 123.7MB. Free memory was 66.1MB in the beginning and 48.7MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-22 16:25:06,589 INFO L158 Benchmark]: Boogie Preprocessor took 201.11ms. Allocated memory is still 123.7MB. Free memory was 48.7MB in the beginning and 86.7MB in the end (delta: -38.0MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2021-11-22 16:25:06,590 INFO L158 Benchmark]: RCFGBuilder took 2004.18ms. Allocated memory was 123.7MB in the beginning and 201.3MB in the end (delta: 77.6MB). Free memory was 86.7MB in the beginning and 125.5MB in the end (delta: -38.8MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2021-11-22 16:25:06,590 INFO L158 Benchmark]: TraceAbstraction took 25884.93ms. Allocated memory was 201.3MB in the beginning and 480.2MB in the end (delta: 278.9MB). Free memory was 124.4MB in the beginning and 296.9MB in the end (delta: -172.4MB). Peak memory consumption was 285.0MB. Max. memory is 16.1GB. [2021-11-22 16:25:06,590 INFO L158 Benchmark]: Witness Printer took 176.14ms. Allocated memory is still 480.2MB. Free memory was 295.8MB in the beginning and 271.7MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-22 16:25:06,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 123.7MB. Free memory was 99.8MB in the beginning and 99.7MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1011.53ms. Allocated memory is still 123.7MB. Free memory was 85.7MB in the beginning and 66.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 175.48ms. Allocated memory is still 123.7MB. Free memory was 66.1MB in the beginning and 48.7MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 201.11ms. Allocated memory is still 123.7MB. Free memory was 48.7MB in the beginning and 86.7MB in the end (delta: -38.0MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2004.18ms. Allocated memory was 123.7MB in the beginning and 201.3MB in the end (delta: 77.6MB). Free memory was 86.7MB in the beginning and 125.5MB in the end (delta: -38.8MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. * TraceAbstraction took 25884.93ms. Allocated memory was 201.3MB in the beginning and 480.2MB in the end (delta: 278.9MB). Free memory was 124.4MB in the beginning and 296.9MB in the end (delta: -172.4MB). Peak memory consumption was 285.0MB. Max. memory is 16.1GB. * Witness Printer took 176.14ms. Allocated memory is still 480.2MB. Free memory was 295.8MB in the beginning and 271.7MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 91]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.8s, OverallIterations: 15, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2637 SdHoareTripleChecker+Valid, 14.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2637 mSDsluCounter, 3223 SdHoareTripleChecker+Invalid, 12.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 367 mSDsCounter, 1712 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9651 IncrementalHoareTripleChecker+Invalid, 11363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1712 mSolverCounterUnsat, 2856 mSDtfsCounter, 9651 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10942occurred in iteration=14, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 6676 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 147 NumberOfFragments, 271 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1886 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 3 FomulaSimplificationsInter, 5626 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 4669 NumberOfCodeBlocks, 4669 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 4653 ConstructedInterpolants, 0 QuantifiedInterpolants, 11277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 419 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 16 InterpolantComputations, 15 PerfectInterpolantSequences, 5419/5462 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((307 <= a23 && a29 <= 599998) && a4 == 1) || ((a4 == 0 && a29 <= 599998) && 12 <= a25)) || (((a4 == 0 && a25 == 11) && a29 <= 599998) && a23 <= 312)) || ((a25 == 13 && a29 <= 599998) && a4 == 1)) || ((a25 == 11 && a29 <= 599999) && a4 == 1)) || (((a25 == 13 && a29 <= 599999) && a23 + 599772 <= 0) && a4 == 1)) || ((a4 == 0 && a23 <= 138) && a29 <= 220)) || ((a4 == 0 && a29 + 22 <= 0) && a25 <= 10)) || (((0 < a23 + 43 && a25 <= 10) && a23 <= 138) && a4 == 1)) || (a29 <= 220 && a4 == 1)) || ((a25 <= 10 && a29 <= 599999) && a4 == 1)) || ((a23 + 43 <= 0 && a4 == 0) && a29 <= 599998) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((307 <= a23 && a29 <= 599998) && a4 == 1) || ((a4 == 0 && a29 <= 599998) && 12 <= a25)) || (((a4 == 0 && a25 == 11) && a29 <= 599998) && a23 <= 312)) || ((a25 == 13 && a29 <= 599998) && a4 == 1)) || ((a25 == 11 && a29 <= 599999) && a4 == 1)) || (((a25 == 13 && a29 <= 599999) && a23 + 599772 <= 0) && a4 == 1)) || ((a4 == 0 && a23 <= 138) && a29 <= 220)) || ((a4 == 0 && a29 + 22 <= 0) && a25 <= 10)) || (((0 < a23 + 43 && a25 <= 10) && a23 <= 138) && a4 == 1)) || (a29 <= 220 && a4 == 1)) || ((a25 <= 10 && a29 <= 599999) && a4 == 1)) || ((a23 + 43 <= 0 && a4 == 0) && a29 <= 599998) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-22 16:25:06,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c8e9c7-7302-4552-8268-1dbe47c449b6/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE