./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label30.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label30.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa --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 80c5c0aba72ae94b1a7faaff5d18dcb1975bca24b2cca6ada65386f045cad987 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:31:19,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:31:19,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:31:19,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:31:19,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:31:19,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:31:19,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:31:19,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:31:19,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:31:19,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:31:19,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:31:19,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:31:19,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:31:19,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:31:19,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:31:19,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:31:19,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:31:19,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:31:19,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:31:19,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:31:19,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:31:19,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:31:19,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:31:19,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:31:19,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:31:19,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:31:19,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:31:19,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:31:19,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:31:19,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:31:19,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:31:19,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:31:19,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:31:19,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:31:19,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:31:19,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:31:19,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:31:19,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:31:19,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:31:19,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:31:19,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:31:19,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:31:19,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:31:19,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:31:19,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:31:19,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:31:19,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:31:19,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:31:19,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:31:19,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:31:19,202 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:31:19,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:31:19,203 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:31:19,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:31:19,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:31:19,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:31:19,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:31:19,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:31:19,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:31:19,203 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:31:19,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:31:19,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:31:19,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:31:19,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:31:19,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:31:19,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:31:19,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:31:19,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:31:19,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:31:19,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:31:19,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:31:19,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:31:19,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:31:19,209 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:31:19,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:31:19,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:31:19,209 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_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80c5c0aba72ae94b1a7faaff5d18dcb1975bca24b2cca6ada65386f045cad987 [2021-12-07 00:31:19,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:31:19,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:31:19,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:31:19,429 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:31:19,429 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:31:19,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/eca-rers2012/Problem11_label30.c [2021-12-07 00:31:19,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/data/2cc419fb3/9cd98c0ca04f4dc3bb282834d4605aab/FLAG3bcc1fb24 [2021-12-07 00:31:19,947 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:31:19,947 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/sv-benchmarks/c/eca-rers2012/Problem11_label30.c [2021-12-07 00:31:19,958 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/data/2cc419fb3/9cd98c0ca04f4dc3bb282834d4605aab/FLAG3bcc1fb24 [2021-12-07 00:31:19,969 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/data/2cc419fb3/9cd98c0ca04f4dc3bb282834d4605aab [2021-12-07 00:31:19,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:31:19,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:31:19,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:31:19,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:31:19,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:31:19,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:31:19" (1/1) ... [2021-12-07 00:31:19,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@631a5813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:19, skipping insertion in model container [2021-12-07 00:31:19,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:31:19" (1/1) ... [2021-12-07 00:31:19,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:31:20,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:31:20,186 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_a3fa761e-6aac-456a-81b0-ca33bd8367eb/sv-benchmarks/c/eca-rers2012/Problem11_label30.c[4279,4292] [2021-12-07 00:31:20,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:31:20,405 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:31:20,423 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_a3fa761e-6aac-456a-81b0-ca33bd8367eb/sv-benchmarks/c/eca-rers2012/Problem11_label30.c[4279,4292] [2021-12-07 00:31:20,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:31:20,532 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:31:20,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:20 WrapperNode [2021-12-07 00:31:20,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:31:20,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:31:20,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:31:20,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:31:20,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:20" (1/1) ... [2021-12-07 00:31:20,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:20" (1/1) ... [2021-12-07 00:31:20,646 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-12-07 00:31:20,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:31:20,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:31:20,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:31:20,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:31:20,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:20" (1/1) ... [2021-12-07 00:31:20,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:20" (1/1) ... [2021-12-07 00:31:20,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:20" (1/1) ... [2021-12-07 00:31:20,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:20" (1/1) ... [2021-12-07 00:31:20,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:20" (1/1) ... [2021-12-07 00:31:20,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:20" (1/1) ... [2021-12-07 00:31:20,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:20" (1/1) ... [2021-12-07 00:31:20,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:31:20,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:31:20,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:31:20,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:31:20,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:20" (1/1) ... [2021-12-07 00:31:20,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:31:20,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:31:20,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:31:20,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:31:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:31:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:31:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:31:20,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:31:20,842 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:31:20,843 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:31:21,864 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:31:21,875 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:31:21,875 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 00:31:21,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:31:21 BoogieIcfgContainer [2021-12-07 00:31:21,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:31:21,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:31:21,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:31:21,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:31:21,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:31:19" (1/3) ... [2021-12-07 00:31:21,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37942dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:31:21, skipping insertion in model container [2021-12-07 00:31:21,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:31:20" (2/3) ... [2021-12-07 00:31:21,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37942dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:31:21, skipping insertion in model container [2021-12-07 00:31:21,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:31:21" (3/3) ... [2021-12-07 00:31:21,886 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label30.c [2021-12-07 00:31:21,891 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:31:21,891 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:31:21,933 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:31:21,938 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 [2021-12-07 00:31:21,938 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:31:21,961 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) [2021-12-07 00:31:21,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-07 00:31:21,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:21,968 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, 1, 1, 1, 1] [2021-12-07 00:31:21,968 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:21,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:21,972 INFO L85 PathProgramCache]: Analyzing trace with hash -748286455, now seen corresponding path program 1 times [2021-12-07 00:31:21,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:21,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450036169] [2021-12-07 00:31:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:21,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:31:22,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:22,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450036169] [2021-12-07 00:31:22,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450036169] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:22,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:22,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:31:22,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646772858] [2021-12-07 00:31:22,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:22,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:22,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:22,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:22,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:22,202 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 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:23,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:23,001 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2021-12-07 00:31:23,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:23,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2021-12-07 00:31:23,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:23,013 INFO L225 Difference]: With dead ends: 776 [2021-12-07 00:31:23,013 INFO L226 Difference]: Without dead ends: 413 [2021-12-07 00:31:23,016 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 [2021-12-07 00:31:23,019 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 198 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:23,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 196 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:31:23,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-12-07 00:31:23,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2021-12-07 00:31:23,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.4585365853658536) internal successors, (598), 410 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:23,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2021-12-07 00:31:23,063 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 29 [2021-12-07 00:31:23,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:23,063 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2021-12-07 00:31:23,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:23,063 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2021-12-07 00:31:23,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:31:23,066 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:23,066 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, 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] [2021-12-07 00:31:23,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:31:23,067 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:23,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:23,067 INFO L85 PathProgramCache]: Analyzing trace with hash -618924976, now seen corresponding path program 1 times [2021-12-07 00:31:23,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:23,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192054032] [2021-12-07 00:31:23,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:23,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:31:23,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:23,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192054032] [2021-12-07 00:31:23,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192054032] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:23,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:23,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:31:23,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652099597] [2021-12-07 00:31:23,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:23,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:23,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:23,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:23,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:23,166 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:23,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:23,703 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2021-12-07 00:31:23,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:23,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2021-12-07 00:31:23,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:23,708 INFO L225 Difference]: With dead ends: 1209 [2021-12-07 00:31:23,708 INFO L226 Difference]: Without dead ends: 800 [2021-12-07 00:31:23,709 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 [2021-12-07 00:31:23,710 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:23,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 120 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:31:23,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-12-07 00:31:23,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2021-12-07 00:31:23,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.3854961832061068) internal successors, (1089), 786 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions. [2021-12-07 00:31:23,745 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 97 [2021-12-07 00:31:23,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:23,745 INFO L470 AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions. [2021-12-07 00:31:23,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:23,746 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions. [2021-12-07 00:31:23,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-07 00:31:23,747 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:23,747 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, 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] [2021-12-07 00:31:23,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:31:23,748 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:23,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:23,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2041606128, now seen corresponding path program 1 times [2021-12-07 00:31:23,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:23,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90666850] [2021-12-07 00:31:23,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:23,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:23,865 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:31:23,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:23,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90666850] [2021-12-07 00:31:23,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90666850] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:23,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:23,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:31:23,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118852482] [2021-12-07 00:31:23,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:23,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:23,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:23,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:23,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:23,868 INFO L87 Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:24,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:24,400 INFO L93 Difference]: Finished difference Result 1942 states and 2631 transitions. [2021-12-07 00:31:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:24,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2021-12-07 00:31:24,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:24,405 INFO L225 Difference]: With dead ends: 1942 [2021-12-07 00:31:24,405 INFO L226 Difference]: Without dead ends: 1157 [2021-12-07 00:31:24,406 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 [2021-12-07 00:31:24,408 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:24,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 190 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:31:24,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-12-07 00:31:24,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156. [2021-12-07 00:31:24,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.277922077922078) internal successors, (1476), 1155 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:24,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions. [2021-12-07 00:31:24,431 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 98 [2021-12-07 00:31:24,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:24,431 INFO L470 AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions. [2021-12-07 00:31:24,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:24,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions. [2021-12-07 00:31:24,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-12-07 00:31:24,434 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:24,434 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, 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] [2021-12-07 00:31:24,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:31:24,435 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:24,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:24,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1509869964, now seen corresponding path program 1 times [2021-12-07 00:31:24,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:24,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011675032] [2021-12-07 00:31:24,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:24,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:31:24,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:24,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011675032] [2021-12-07 00:31:24,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011675032] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:24,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:24,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:31:24,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138027277] [2021-12-07 00:31:24,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:24,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:24,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:24,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:24,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:24,561 INFO L87 Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:25,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:25,125 INFO L93 Difference]: Finished difference Result 2691 states and 3515 transitions. [2021-12-07 00:31:25,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:25,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2021-12-07 00:31:25,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:25,133 INFO L225 Difference]: With dead ends: 2691 [2021-12-07 00:31:25,134 INFO L226 Difference]: Without dead ends: 1721 [2021-12-07 00:31:25,135 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 [2021-12-07 00:31:25,137 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 177 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:25,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 336 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:31:25,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2021-12-07 00:31:25,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1528. [2021-12-07 00:31:25,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 1.261296660117878) internal successors, (1926), 1527 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:25,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1926 transitions. [2021-12-07 00:31:25,165 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1926 transitions. Word has length 141 [2021-12-07 00:31:25,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:25,165 INFO L470 AbstractCegarLoop]: Abstraction has 1528 states and 1926 transitions. [2021-12-07 00:31:25,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:25,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1926 transitions. [2021-12-07 00:31:25,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-07 00:31:25,168 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:25,169 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, 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] [2021-12-07 00:31:25,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 00:31:25,169 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:25,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:25,170 INFO L85 PathProgramCache]: Analyzing trace with hash 808958387, now seen corresponding path program 1 times [2021-12-07 00:31:25,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:25,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970028229] [2021-12-07 00:31:25,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:25,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:25,254 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:31:25,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:25,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970028229] [2021-12-07 00:31:25,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970028229] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:25,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:25,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:31:25,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080788251] [2021-12-07 00:31:25,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:25,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:25,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:25,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:25,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:25,257 INFO L87 Difference]: Start difference. First operand 1528 states and 1926 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:25,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:25,776 INFO L93 Difference]: Finished difference Result 4158 states and 5316 transitions. [2021-12-07 00:31:25,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:25,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2021-12-07 00:31:25,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:25,787 INFO L225 Difference]: With dead ends: 4158 [2021-12-07 00:31:25,787 INFO L226 Difference]: Without dead ends: 2632 [2021-12-07 00:31:25,789 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 [2021-12-07 00:31:25,790 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:25,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 155 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:31:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2021-12-07 00:31:25,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2448. [2021-12-07 00:31:25,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2447 states have (on average 1.2174090723334696) internal successors, (2979), 2447 states have internal predecessors, (2979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:25,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 2979 transitions. [2021-12-07 00:31:25,831 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 2979 transitions. Word has length 156 [2021-12-07 00:31:25,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:25,832 INFO L470 AbstractCegarLoop]: Abstraction has 2448 states and 2979 transitions. [2021-12-07 00:31:25,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:25,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 2979 transitions. [2021-12-07 00:31:25,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-07 00:31:25,834 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:25,834 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:25,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 00:31:25,834 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:25,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:25,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1008669779, now seen corresponding path program 1 times [2021-12-07 00:31:25,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:25,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363864928] [2021-12-07 00:31:25,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:25,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:25,898 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:31:25,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:25,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363864928] [2021-12-07 00:31:25,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363864928] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:25,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:25,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:31:25,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813822070] [2021-12-07 00:31:25,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:25,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:25,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:25,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:25,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:25,900 INFO L87 Difference]: Start difference. First operand 2448 states and 2979 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:26,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:26,433 INFO L93 Difference]: Finished difference Result 5639 states and 6868 transitions. [2021-12-07 00:31:26,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:26,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2021-12-07 00:31:26,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:26,445 INFO L225 Difference]: With dead ends: 5639 [2021-12-07 00:31:26,445 INFO L226 Difference]: Without dead ends: 3193 [2021-12-07 00:31:26,447 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 [2021-12-07 00:31:26,448 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 172 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:26,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 359 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:31:26,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2021-12-07 00:31:26,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 3184. [2021-12-07 00:31:26,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 3183 states have (on average 1.1991831605403707) internal successors, (3817), 3183 states have internal predecessors, (3817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:26,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 3817 transitions. [2021-12-07 00:31:26,499 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 3817 transitions. Word has length 172 [2021-12-07 00:31:26,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:26,499 INFO L470 AbstractCegarLoop]: Abstraction has 3184 states and 3817 transitions. [2021-12-07 00:31:26,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:26,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 3817 transitions. [2021-12-07 00:31:26,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-12-07 00:31:26,502 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:26,502 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:26,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 00:31:26,502 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:26,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:26,502 INFO L85 PathProgramCache]: Analyzing trace with hash -966496715, now seen corresponding path program 1 times [2021-12-07 00:31:26,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:26,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368463253] [2021-12-07 00:31:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:26,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-07 00:31:26,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:26,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368463253] [2021-12-07 00:31:26,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368463253] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:26,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:26,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:31:26,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397251137] [2021-12-07 00:31:26,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:26,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:26,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:26,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:26,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:26,597 INFO L87 Difference]: Start difference. First operand 3184 states and 3817 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:27,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:27,105 INFO L93 Difference]: Finished difference Result 7108 states and 8504 transitions. [2021-12-07 00:31:27,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:27,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-12-07 00:31:27,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:27,120 INFO L225 Difference]: With dead ends: 7108 [2021-12-07 00:31:27,120 INFO L226 Difference]: Without dead ends: 3926 [2021-12-07 00:31:27,123 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 [2021-12-07 00:31:27,124 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 37 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 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, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:27,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 154 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:31:27,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3926 states. [2021-12-07 00:31:27,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3926 to 3925. [2021-12-07 00:31:27,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3925 states, 3924 states have (on average 1.193934760448522) internal successors, (4685), 3924 states have internal predecessors, (4685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:27,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3925 states to 3925 states and 4685 transitions. [2021-12-07 00:31:27,188 INFO L78 Accepts]: Start accepts. Automaton has 3925 states and 4685 transitions. Word has length 210 [2021-12-07 00:31:27,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:27,188 INFO L470 AbstractCegarLoop]: Abstraction has 3925 states and 4685 transitions. [2021-12-07 00:31:27,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:27,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3925 states and 4685 transitions. [2021-12-07 00:31:27,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-07 00:31:27,191 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:27,191 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:27,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 00:31:27,191 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:27,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:27,192 INFO L85 PathProgramCache]: Analyzing trace with hash 471864344, now seen corresponding path program 1 times [2021-12-07 00:31:27,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:27,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972454630] [2021-12-07 00:31:27,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:27,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:27,263 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-07 00:31:27,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:27,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972454630] [2021-12-07 00:31:27,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972454630] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:27,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:27,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:31:27,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529932088] [2021-12-07 00:31:27,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:27,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:27,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:27,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:27,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:27,265 INFO L87 Difference]: Start difference. First operand 3925 states and 4685 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:27,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:27,898 INFO L93 Difference]: Finished difference Result 8591 states and 10347 transitions. [2021-12-07 00:31:27,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:27,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 211 [2021-12-07 00:31:27,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:27,915 INFO L225 Difference]: With dead ends: 8591 [2021-12-07 00:31:27,915 INFO L226 Difference]: Without dead ends: 4668 [2021-12-07 00:31:27,918 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 [2021-12-07 00:31:27,919 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 168 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:27,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 390 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:31:27,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4668 states. [2021-12-07 00:31:27,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4668 to 4477. [2021-12-07 00:31:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 4476 states have (on average 1.1861036639857014) internal successors, (5309), 4476 states have internal predecessors, (5309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:27,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 5309 transitions. [2021-12-07 00:31:27,988 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 5309 transitions. Word has length 211 [2021-12-07 00:31:27,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:27,988 INFO L470 AbstractCegarLoop]: Abstraction has 4477 states and 5309 transitions. [2021-12-07 00:31:27,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:27,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 5309 transitions. [2021-12-07 00:31:27,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-12-07 00:31:27,991 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:27,991 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:27,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 00:31:27,992 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:27,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:27,992 INFO L85 PathProgramCache]: Analyzing trace with hash 257378762, now seen corresponding path program 1 times [2021-12-07 00:31:27,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:27,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102268587] [2021-12-07 00:31:27,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:27,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:28,076 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:31:28,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:28,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102268587] [2021-12-07 00:31:28,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102268587] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:28,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:28,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:31:28,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812927839] [2021-12-07 00:31:28,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:28,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:31:28,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:28,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:31:28,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:31:28,078 INFO L87 Difference]: Start difference. First operand 4477 states and 5309 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:28,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:28,974 INFO L93 Difference]: Finished difference Result 14321 states and 17014 transitions. [2021-12-07 00:31:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:31:28,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2021-12-07 00:31:28,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:29,007 INFO L225 Difference]: With dead ends: 14321 [2021-12-07 00:31:29,007 INFO L226 Difference]: Without dead ends: 9846 [2021-12-07 00:31:29,010 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 [2021-12-07 00:31:29,011 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 309 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:29,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 191 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:31:29,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9846 states. [2021-12-07 00:31:29,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9846 to 7627. [2021-12-07 00:31:29,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7627 states, 7626 states have (on average 1.1702071859428271) internal successors, (8924), 7626 states have internal predecessors, (8924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:29,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7627 states to 7627 states and 8924 transitions. [2021-12-07 00:31:29,104 INFO L78 Accepts]: Start accepts. Automaton has 7627 states and 8924 transitions. Word has length 231 [2021-12-07 00:31:29,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:29,105 INFO L470 AbstractCegarLoop]: Abstraction has 7627 states and 8924 transitions. [2021-12-07 00:31:29,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:29,105 INFO L276 IsEmpty]: Start isEmpty. Operand 7627 states and 8924 transitions. [2021-12-07 00:31:29,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-07 00:31:29,108 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:29,108 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:29,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 00:31:29,108 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:29,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:29,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1660657955, now seen corresponding path program 1 times [2021-12-07 00:31:29,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:29,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360449532] [2021-12-07 00:31:29,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:29,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:29,189 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:31:29,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:29,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360449532] [2021-12-07 00:31:29,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360449532] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:29,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:29,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:31:29,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483623530] [2021-12-07 00:31:29,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:29,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:31:29,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:29,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:31:29,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:31:29,192 INFO L87 Difference]: Start difference. First operand 7627 states and 8924 transitions. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:30,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:30,163 INFO L93 Difference]: Finished difference Result 20234 states and 23746 transitions. [2021-12-07 00:31:30,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:31:30,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2021-12-07 00:31:30,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:30,181 INFO L225 Difference]: With dead ends: 20234 [2021-12-07 00:31:30,181 INFO L226 Difference]: Without dead ends: 12609 [2021-12-07 00:31:30,187 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 [2021-12-07 00:31:30,188 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 323 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:30,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 113 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 00:31:30,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12609 states. [2021-12-07 00:31:30,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12609 to 10202. [2021-12-07 00:31:30,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10202 states, 10201 states have (on average 1.1734143711400844) internal successors, (11970), 10201 states have internal predecessors, (11970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:30,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10202 states to 10202 states and 11970 transitions. [2021-12-07 00:31:30,320 INFO L78 Accepts]: Start accepts. Automaton has 10202 states and 11970 transitions. Word has length 241 [2021-12-07 00:31:30,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:30,321 INFO L470 AbstractCegarLoop]: Abstraction has 10202 states and 11970 transitions. [2021-12-07 00:31:30,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:30,321 INFO L276 IsEmpty]: Start isEmpty. Operand 10202 states and 11970 transitions. [2021-12-07 00:31:30,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-07 00:31:30,323 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:30,323 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:30,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 00:31:30,324 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:30,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:30,324 INFO L85 PathProgramCache]: Analyzing trace with hash -260628436, now seen corresponding path program 1 times [2021-12-07 00:31:30,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:30,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13781828] [2021-12-07 00:31:30,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:30,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:30,388 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:31:30,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:30,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13781828] [2021-12-07 00:31:30,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13781828] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:30,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:30,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:31:30,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778737633] [2021-12-07 00:31:30,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:30,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:30,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:30,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:30,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:30,390 INFO L87 Difference]: Start difference. First operand 10202 states and 11970 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:30,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:30,909 INFO L93 Difference]: Finished difference Result 20399 states and 23935 transitions. [2021-12-07 00:31:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:30,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2021-12-07 00:31:30,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:30,922 INFO L225 Difference]: With dead ends: 20399 [2021-12-07 00:31:30,922 INFO L226 Difference]: Without dead ends: 10199 [2021-12-07 00:31:30,929 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 [2021-12-07 00:31:30,930 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 148 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:30,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 305 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:31:30,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10199 states. [2021-12-07 00:31:31,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10199 to 10199. [2021-12-07 00:31:31,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10199 states, 10198 states have (on average 1.1445381447342615) internal successors, (11672), 10198 states have internal predecessors, (11672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:31,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10199 states to 10199 states and 11672 transitions. [2021-12-07 00:31:31,051 INFO L78 Accepts]: Start accepts. Automaton has 10199 states and 11672 transitions. Word has length 241 [2021-12-07 00:31:31,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:31,052 INFO L470 AbstractCegarLoop]: Abstraction has 10199 states and 11672 transitions. [2021-12-07 00:31:31,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:31,052 INFO L276 IsEmpty]: Start isEmpty. Operand 10199 states and 11672 transitions. [2021-12-07 00:31:31,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-12-07 00:31:31,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:31,056 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:31,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 00:31:31,056 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:31,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:31,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1739170223, now seen corresponding path program 1 times [2021-12-07 00:31:31,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:31,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741659907] [2021-12-07 00:31:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:31,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:31,121 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-12-07 00:31:31,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:31,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741659907] [2021-12-07 00:31:31,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741659907] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:31,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:31,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:31:31,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232402321] [2021-12-07 00:31:31,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:31,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:31,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:31,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:31,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:31,123 INFO L87 Difference]: Start difference. First operand 10199 states and 11672 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:31,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:31,741 INFO L93 Difference]: Finished difference Result 22787 states and 26113 transitions. [2021-12-07 00:31:31,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:31,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 243 [2021-12-07 00:31:31,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:31,754 INFO L225 Difference]: With dead ends: 22787 [2021-12-07 00:31:31,754 INFO L226 Difference]: Without dead ends: 12590 [2021-12-07 00:31:31,761 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 [2021-12-07 00:31:31,762 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 169 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:31,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 370 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:31:31,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12590 states. [2021-12-07 00:31:31,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12590 to 11114. [2021-12-07 00:31:31,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11114 states, 11113 states have (on average 1.1383064878970575) internal successors, (12650), 11113 states have internal predecessors, (12650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11114 states to 11114 states and 12650 transitions. [2021-12-07 00:31:31,921 INFO L78 Accepts]: Start accepts. Automaton has 11114 states and 12650 transitions. Word has length 243 [2021-12-07 00:31:31,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:31,922 INFO L470 AbstractCegarLoop]: Abstraction has 11114 states and 12650 transitions. [2021-12-07 00:31:31,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:31,922 INFO L276 IsEmpty]: Start isEmpty. Operand 11114 states and 12650 transitions. [2021-12-07 00:31:31,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-07 00:31:31,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:31,925 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:31,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-07 00:31:31,926 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:31,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:31,926 INFO L85 PathProgramCache]: Analyzing trace with hash -272151494, now seen corresponding path program 1 times [2021-12-07 00:31:31,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:31,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614998043] [2021-12-07 00:31:31,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:31,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:32,003 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-07 00:31:32,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:32,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614998043] [2021-12-07 00:31:32,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614998043] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:32,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:32,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:31:32,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904885609] [2021-12-07 00:31:32,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:32,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:32,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:32,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:32,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:32,004 INFO L87 Difference]: Start difference. First operand 11114 states and 12650 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:32,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:32,633 INFO L93 Difference]: Finished difference Result 22413 states and 25494 transitions. [2021-12-07 00:31:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:32,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 248 [2021-12-07 00:31:32,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:32,642 INFO L225 Difference]: With dead ends: 22413 [2021-12-07 00:31:32,642 INFO L226 Difference]: Without dead ends: 11301 [2021-12-07 00:31:32,650 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 [2021-12-07 00:31:32,650 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 171 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:32,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 373 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:31:32,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11301 states. [2021-12-07 00:31:32,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11301 to 11113. [2021-12-07 00:31:32,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11113 states, 11112 states have (on average 1.1175305975521959) internal successors, (12418), 11112 states have internal predecessors, (12418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:32,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11113 states to 11113 states and 12418 transitions. [2021-12-07 00:31:32,762 INFO L78 Accepts]: Start accepts. Automaton has 11113 states and 12418 transitions. Word has length 248 [2021-12-07 00:31:32,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:32,762 INFO L470 AbstractCegarLoop]: Abstraction has 11113 states and 12418 transitions. [2021-12-07 00:31:32,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:32,763 INFO L276 IsEmpty]: Start isEmpty. Operand 11113 states and 12418 transitions. [2021-12-07 00:31:32,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-07 00:31:32,766 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:32,767 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:32,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-07 00:31:32,767 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:32,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:32,767 INFO L85 PathProgramCache]: Analyzing trace with hash -535862831, now seen corresponding path program 1 times [2021-12-07 00:31:32,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:32,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446134796] [2021-12-07 00:31:32,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:32,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:32,889 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 109 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:31:32,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:32,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446134796] [2021-12-07 00:31:32,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446134796] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:31:32,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396008026] [2021-12-07 00:31:32,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:32,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:31:32,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:31:32,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:31:32,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 00:31:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:33,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:31:33,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:31:33,473 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:31:33,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:31:33,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396008026] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:33,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:31:33,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-07 00:31:33,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604415361] [2021-12-07 00:31:33,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:33,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:31:33,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:33,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:31:33,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:31:33,475 INFO L87 Difference]: Start difference. First operand 11113 states and 12418 transitions. Second operand has 4 states, 4 states have (on average 65.5) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:34,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:34,169 INFO L93 Difference]: Finished difference Result 22227 states and 24838 transitions. [2021-12-07 00:31:34,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:31:34,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2021-12-07 00:31:34,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:34,178 INFO L225 Difference]: With dead ends: 22227 [2021-12-07 00:31:34,178 INFO L226 Difference]: Without dead ends: 11116 [2021-12-07 00:31:34,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:31:34,185 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 178 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:34,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 155 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:31:34,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11116 states. [2021-12-07 00:31:34,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11116 to 11113. [2021-12-07 00:31:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11113 states, 11112 states have (on average 1.1164506839452844) internal successors, (12406), 11112 states have internal predecessors, (12406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:34,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11113 states to 11113 states and 12406 transitions. [2021-12-07 00:31:34,271 INFO L78 Accepts]: Start accepts. Automaton has 11113 states and 12406 transitions. Word has length 262 [2021-12-07 00:31:34,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:34,271 INFO L470 AbstractCegarLoop]: Abstraction has 11113 states and 12406 transitions. [2021-12-07 00:31:34,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:34,272 INFO L276 IsEmpty]: Start isEmpty. Operand 11113 states and 12406 transitions. [2021-12-07 00:31:34,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-12-07 00:31:34,275 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:34,275 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, 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, 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] [2021-12-07 00:31:34,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:31:34,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-07 00:31:34,477 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:34,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:34,478 INFO L85 PathProgramCache]: Analyzing trace with hash -493651351, now seen corresponding path program 1 times [2021-12-07 00:31:34,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:34,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516415015] [2021-12-07 00:31:34,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:34,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:34,565 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-12-07 00:31:34,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:34,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516415015] [2021-12-07 00:31:34,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516415015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:34,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:34,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:31:34,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488597790] [2021-12-07 00:31:34,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:34,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:34,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:34,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:34,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:34,567 INFO L87 Difference]: Start difference. First operand 11113 states and 12406 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:35,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:35,029 INFO L93 Difference]: Finished difference Result 24615 states and 27485 transitions. [2021-12-07 00:31:35,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:35,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 296 [2021-12-07 00:31:35,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:35,039 INFO L225 Difference]: With dead ends: 24615 [2021-12-07 00:31:35,039 INFO L226 Difference]: Without dead ends: 13504 [2021-12-07 00:31:35,045 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 [2021-12-07 00:31:35,045 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 192 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:35,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 144 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 00:31:35,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13504 states. [2021-12-07 00:31:35,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13504 to 11108. [2021-12-07 00:31:35,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11108 states, 11107 states have (on average 1.1173134059602052) internal successors, (12410), 11107 states have internal predecessors, (12410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:35,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11108 states to 11108 states and 12410 transitions. [2021-12-07 00:31:35,156 INFO L78 Accepts]: Start accepts. Automaton has 11108 states and 12410 transitions. Word has length 296 [2021-12-07 00:31:35,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:35,156 INFO L470 AbstractCegarLoop]: Abstraction has 11108 states and 12410 transitions. [2021-12-07 00:31:35,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:35,157 INFO L276 IsEmpty]: Start isEmpty. Operand 11108 states and 12410 transitions. [2021-12-07 00:31:35,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-12-07 00:31:35,162 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:35,162 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, 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, 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] [2021-12-07 00:31:35,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-07 00:31:35,162 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:35,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:35,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1103847605, now seen corresponding path program 1 times [2021-12-07 00:31:35,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:35,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035511307] [2021-12-07 00:31:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:35,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:35,290 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-07 00:31:35,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:35,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035511307] [2021-12-07 00:31:35,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035511307] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:35,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:35,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:31:35,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658795024] [2021-12-07 00:31:35,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:35,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:31:35,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:35,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:31:35,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:31:35,292 INFO L87 Difference]: Start difference. First operand 11108 states and 12410 transitions. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:36,197 INFO L93 Difference]: Finished difference Result 27772 states and 31008 transitions. [2021-12-07 00:31:36,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:31:36,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 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 300 [2021-12-07 00:31:36,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:36,208 INFO L225 Difference]: With dead ends: 27772 [2021-12-07 00:31:36,208 INFO L226 Difference]: Without dead ends: 15925 [2021-12-07 00:31:36,213 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 [2021-12-07 00:31:36,213 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 311 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:36,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 399 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:31:36,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15925 states. [2021-12-07 00:31:36,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15925 to 12597. [2021-12-07 00:31:36,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12597 states, 12596 states have (on average 1.11765639885678) internal successors, (14078), 12596 states have internal predecessors, (14078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:36,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12597 states to 12597 states and 14078 transitions. [2021-12-07 00:31:36,335 INFO L78 Accepts]: Start accepts. Automaton has 12597 states and 14078 transitions. Word has length 300 [2021-12-07 00:31:36,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:36,335 INFO L470 AbstractCegarLoop]: Abstraction has 12597 states and 14078 transitions. [2021-12-07 00:31:36,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:36,336 INFO L276 IsEmpty]: Start isEmpty. Operand 12597 states and 14078 transitions. [2021-12-07 00:31:36,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-12-07 00:31:36,339 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:36,340 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, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:36,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-07 00:31:36,340 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:36,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:36,340 INFO L85 PathProgramCache]: Analyzing trace with hash 922831987, now seen corresponding path program 1 times [2021-12-07 00:31:36,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:36,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111245108] [2021-12-07 00:31:36,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:36,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:36,523 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-07 00:31:36,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:36,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111245108] [2021-12-07 00:31:36,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111245108] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:31:36,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718763405] [2021-12-07 00:31:36,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:36,524 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:31:36,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:31:36,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:31:36,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 00:31:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:36,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:31:36,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:31:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-07 00:31:37,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:31:37,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718763405] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:37,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:31:37,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-07 00:31:37,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775325175] [2021-12-07 00:31:37,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:37,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:31:37,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:37,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:31:37,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:31:37,138 INFO L87 Difference]: Start difference. First operand 12597 states and 14078 transitions. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:37,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:37,788 INFO L93 Difference]: Finished difference Result 25378 states and 28346 transitions. [2021-12-07 00:31:37,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:31:37,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 316 [2021-12-07 00:31:37,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:37,798 INFO L225 Difference]: With dead ends: 25378 [2021-12-07 00:31:37,798 INFO L226 Difference]: Without dead ends: 12783 [2021-12-07 00:31:37,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:31:37,803 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 187 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:37,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 166 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:31:37,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12783 states. [2021-12-07 00:31:37,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12783 to 12597. [2021-12-07 00:31:37,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12597 states, 12596 states have (on average 1.116703715465227) internal successors, (14066), 12596 states have internal predecessors, (14066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:37,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12597 states to 12597 states and 14066 transitions. [2021-12-07 00:31:37,929 INFO L78 Accepts]: Start accepts. Automaton has 12597 states and 14066 transitions. Word has length 316 [2021-12-07 00:31:37,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:37,930 INFO L470 AbstractCegarLoop]: Abstraction has 12597 states and 14066 transitions. [2021-12-07 00:31:37,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:37,930 INFO L276 IsEmpty]: Start isEmpty. Operand 12597 states and 14066 transitions. [2021-12-07 00:31:37,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-12-07 00:31:37,934 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:37,934 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:37,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-07 00:31:38,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-07 00:31:38,136 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:38,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:38,138 INFO L85 PathProgramCache]: Analyzing trace with hash -859097736, now seen corresponding path program 1 times [2021-12-07 00:31:38,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:38,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431716009] [2021-12-07 00:31:38,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:38,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-07 00:31:38,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:38,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431716009] [2021-12-07 00:31:38,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431716009] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:38,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:38,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:31:38,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122844313] [2021-12-07 00:31:38,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:38,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:38,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:38,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:38,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:31:38,265 INFO L87 Difference]: Start difference. First operand 12597 states and 14066 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:38,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:38,783 INFO L93 Difference]: Finished difference Result 27596 states and 30780 transitions. [2021-12-07 00:31:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:38,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 327 [2021-12-07 00:31:38,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:38,794 INFO L225 Difference]: With dead ends: 27596 [2021-12-07 00:31:38,794 INFO L226 Difference]: Without dead ends: 15001 [2021-12-07 00:31:38,799 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 [2021-12-07 00:31:38,799 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 193 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:38,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 135 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 00:31:38,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15001 states. [2021-12-07 00:31:38,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15001 to 11481. [2021-12-07 00:31:38,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11481 states, 11480 states have (on average 1.1169860627177701) internal successors, (12823), 11480 states have internal predecessors, (12823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:38,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11481 states to 11481 states and 12823 transitions. [2021-12-07 00:31:38,899 INFO L78 Accepts]: Start accepts. Automaton has 11481 states and 12823 transitions. Word has length 327 [2021-12-07 00:31:38,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:38,900 INFO L470 AbstractCegarLoop]: Abstraction has 11481 states and 12823 transitions. [2021-12-07 00:31:38,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:38,900 INFO L276 IsEmpty]: Start isEmpty. Operand 11481 states and 12823 transitions. [2021-12-07 00:31:38,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-12-07 00:31:38,904 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:38,905 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, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:38,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-07 00:31:38,905 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:38,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:38,905 INFO L85 PathProgramCache]: Analyzing trace with hash -2055586056, now seen corresponding path program 1 times [2021-12-07 00:31:38,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:38,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950732899] [2021-12-07 00:31:38,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:38,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:39,010 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-07 00:31:39,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:39,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950732899] [2021-12-07 00:31:39,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950732899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:39,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:39,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:31:39,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688651856] [2021-12-07 00:31:39,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:39,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:31:39,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:39,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:31:39,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:31:39,011 INFO L87 Difference]: Start difference. First operand 11481 states and 12823 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:39,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:39,886 INFO L93 Difference]: Finished difference Result 27206 states and 30325 transitions. [2021-12-07 00:31:39,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:31:39,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 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 338 [2021-12-07 00:31:39,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:39,897 INFO L225 Difference]: With dead ends: 27206 [2021-12-07 00:31:39,897 INFO L226 Difference]: Without dead ends: 15172 [2021-12-07 00:31:39,901 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 [2021-12-07 00:31:39,902 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 311 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:39,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 354 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:31:39,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15172 states. [2021-12-07 00:31:39,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15172 to 10360. [2021-12-07 00:31:39,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10360 states, 10359 states have (on average 1.1105319046239985) internal successors, (11504), 10359 states have internal predecessors, (11504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10360 states to 10360 states and 11504 transitions. [2021-12-07 00:31:39,995 INFO L78 Accepts]: Start accepts. Automaton has 10360 states and 11504 transitions. Word has length 338 [2021-12-07 00:31:39,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:39,996 INFO L470 AbstractCegarLoop]: Abstraction has 10360 states and 11504 transitions. [2021-12-07 00:31:39,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:39,996 INFO L276 IsEmpty]: Start isEmpty. Operand 10360 states and 11504 transitions. [2021-12-07 00:31:40,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-12-07 00:31:40,001 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:40,001 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, 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, 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] [2021-12-07 00:31:40,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-07 00:31:40,001 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:40,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:40,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1201451964, now seen corresponding path program 1 times [2021-12-07 00:31:40,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:40,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125852745] [2021-12-07 00:31:40,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:40,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:40,093 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-07 00:31:40,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:40,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125852745] [2021-12-07 00:31:40,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125852745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:40,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:40,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:31:40,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849002857] [2021-12-07 00:31:40,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:40,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:31:40,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:40,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:31:40,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:31:40,094 INFO L87 Difference]: Start difference. First operand 10360 states and 11504 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:40,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:40,870 INFO L93 Difference]: Finished difference Result 22193 states and 24552 transitions. [2021-12-07 00:31:40,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:31:40,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 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 351 [2021-12-07 00:31:40,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:40,879 INFO L225 Difference]: With dead ends: 22193 [2021-12-07 00:31:40,879 INFO L226 Difference]: Without dead ends: 11835 [2021-12-07 00:31:40,883 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 [2021-12-07 00:31:40,884 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 328 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:40,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 57 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:31:40,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11835 states. [2021-12-07 00:31:40,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11835 to 9619. [2021-12-07 00:31:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9619 states, 9618 states have (on average 1.1072988147223954) internal successors, (10650), 9618 states have internal predecessors, (10650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9619 states to 9619 states and 10650 transitions. [2021-12-07 00:31:40,989 INFO L78 Accepts]: Start accepts. Automaton has 9619 states and 10650 transitions. Word has length 351 [2021-12-07 00:31:40,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:40,990 INFO L470 AbstractCegarLoop]: Abstraction has 9619 states and 10650 transitions. [2021-12-07 00:31:40,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:40,990 INFO L276 IsEmpty]: Start isEmpty. Operand 9619 states and 10650 transitions. [2021-12-07 00:31:40,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-12-07 00:31:40,995 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:40,996 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, 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, 2, 2, 2, 2, 2, 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] [2021-12-07 00:31:40,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-07 00:31:40,996 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:40,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:40,997 INFO L85 PathProgramCache]: Analyzing trace with hash -289830597, now seen corresponding path program 1 times [2021-12-07 00:31:40,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:40,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522864258] [2021-12-07 00:31:40,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:40,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-07 00:31:41,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:41,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522864258] [2021-12-07 00:31:41,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522864258] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:41,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:41,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:31:41,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748668007] [2021-12-07 00:31:41,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:41,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:31:41,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:41,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:31:41,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:31:41,093 INFO L87 Difference]: Start difference. First operand 9619 states and 10650 transitions. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:41,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:41,900 INFO L93 Difference]: Finished difference Result 26249 states and 29041 transitions. [2021-12-07 00:31:41,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:31:41,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 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 386 [2021-12-07 00:31:41,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:41,911 INFO L225 Difference]: With dead ends: 26249 [2021-12-07 00:31:41,911 INFO L226 Difference]: Without dead ends: 16632 [2021-12-07 00:31:41,916 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 [2021-12-07 00:31:41,917 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 202 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:41,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 71 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:31:41,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16632 states. [2021-12-07 00:31:42,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16632 to 15333. [2021-12-07 00:31:42,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15333 states, 15332 states have (on average 1.1049439081659276) internal successors, (16941), 15332 states have internal predecessors, (16941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:42,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15333 states to 15333 states and 16941 transitions. [2021-12-07 00:31:42,059 INFO L78 Accepts]: Start accepts. Automaton has 15333 states and 16941 transitions. Word has length 386 [2021-12-07 00:31:42,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:42,059 INFO L470 AbstractCegarLoop]: Abstraction has 15333 states and 16941 transitions. [2021-12-07 00:31:42,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:42,060 INFO L276 IsEmpty]: Start isEmpty. Operand 15333 states and 16941 transitions. [2021-12-07 00:31:42,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2021-12-07 00:31:42,074 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:42,075 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:42,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-07 00:31:42,075 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:42,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:42,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1206273662, now seen corresponding path program 1 times [2021-12-07 00:31:42,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:42,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730467386] [2021-12-07 00:31:42,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:42,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:42,204 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-12-07 00:31:42,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:42,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730467386] [2021-12-07 00:31:42,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730467386] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:42,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:31:42,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:31:42,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490021966] [2021-12-07 00:31:42,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:42,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:31:42,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:42,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:31:42,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:31:42,205 INFO L87 Difference]: Start difference. First operand 15333 states and 16941 transitions. Second operand has 4 states, 4 states have (on average 94.5) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:42,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:42,963 INFO L93 Difference]: Finished difference Result 29567 states and 32664 transitions. [2021-12-07 00:31:42,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:31:42,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 94.5) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 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 531 [2021-12-07 00:31:42,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:42,976 INFO L225 Difference]: With dead ends: 29567 [2021-12-07 00:31:42,976 INFO L226 Difference]: Without dead ends: 16632 [2021-12-07 00:31:42,981 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 [2021-12-07 00:31:42,982 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 175 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:42,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 71 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:31:42,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16632 states. [2021-12-07 00:31:43,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16632 to 15149. [2021-12-07 00:31:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15149 states, 15148 states have (on average 1.1043041985740691) internal successors, (16728), 15148 states have internal predecessors, (16728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:43,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15149 states to 15149 states and 16728 transitions. [2021-12-07 00:31:43,128 INFO L78 Accepts]: Start accepts. Automaton has 15149 states and 16728 transitions. Word has length 531 [2021-12-07 00:31:43,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:43,129 INFO L470 AbstractCegarLoop]: Abstraction has 15149 states and 16728 transitions. [2021-12-07 00:31:43,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.5) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:43,129 INFO L276 IsEmpty]: Start isEmpty. Operand 15149 states and 16728 transitions. [2021-12-07 00:31:43,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2021-12-07 00:31:43,145 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:31:43,145 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:31:43,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-07 00:31:43,146 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:31:43,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:31:43,146 INFO L85 PathProgramCache]: Analyzing trace with hash 594473960, now seen corresponding path program 1 times [2021-12-07 00:31:43,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:31:43,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499710970] [2021-12-07 00:31:43,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:43,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:31:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:43,344 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 628 proven. 288 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-12-07 00:31:43,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:31:43,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499710970] [2021-12-07 00:31:43,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499710970] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:31:43,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589690974] [2021-12-07 00:31:43,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:31:43,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:31:43,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:31:43,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:31:43,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 00:31:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:31:43,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:31:43,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:31:43,846 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2021-12-07 00:31:43,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:31:43,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589690974] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:31:43,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:31:43,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-12-07 00:31:43,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847644744] [2021-12-07 00:31:43,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:31:43,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:31:43,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:31:43,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:31:43,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:31:43,848 INFO L87 Difference]: Start difference. First operand 15149 states and 16728 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:44,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:31:44,347 INFO L93 Difference]: Finished difference Result 31396 states and 34631 transitions. [2021-12-07 00:31:44,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:31:44,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 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 545 [2021-12-07 00:31:44,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:31:44,349 INFO L225 Difference]: With dead ends: 31396 [2021-12-07 00:31:44,349 INFO L226 Difference]: Without dead ends: 0 [2021-12-07 00:31:44,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:31:44,357 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 106 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:31:44,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 129 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 00:31:44,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-07 00:31:44,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-07 00:31:44,358 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) [2021-12-07 00:31:44,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-07 00:31:44,358 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 545 [2021-12-07 00:31:44,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:31:44,359 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 00:31:44,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:31:44,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-07 00:31:44,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-07 00:31:44,361 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 00:31:44,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-07 00:31:44,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-12-07 00:31:44,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-07 00:31:58,223 WARN L227 SmtUtils]: Spent 13.64s on a formula simplification. DAG size of input: 488 DAG size of output: 472 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-07 00:32:11,639 WARN L227 SmtUtils]: Spent 13.41s on a formula simplification. DAG size of input: 488 DAG size of output: 472 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-07 00:32:14,615 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-12-07 00:32:14,615 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,615 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-12-07 00:32:14,615 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,615 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,615 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,616 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-12-07 00:32:14,617 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,618 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,618 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,618 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse4 (<= ~a25~0 9)) (.cse1 (<= ~a25~0 10)) (.cse3 (= ~a4~0 1)) (.cse9 (= ~a25~0 12)) (.cse2 (<= ~a29~0 599999)) (.cse10 (<= ~a23~0 137)) (.cse7 (= ~a25~0 13)) (.cse5 (<= (+ ~a23~0 43) 0)) (.cse8 (<= ~a29~0 275)) (.cse0 (= ~a4~0 0)) (.cse6 (= ~a25~0 11)) (.cse11 (<= ~a23~0 262))) (or (and .cse0 .cse1 (<= ~a29~0 130)) (and .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse2 .cse4) (and .cse6 .cse2 .cse3) (and .cse7 .cse2 .cse3) (and (<= ~a29~0 244) .cse1 .cse3) (and .cse8 .cse9 .cse0) (and .cse7 .cse0 (<= (+ 35913 ~a29~0) 0) .cse10) (and (<= ~a29~0 140) .cse0 .cse1 .cse11) (and (<= 307 ~a23~0) .cse1 .cse2 .cse3) (and .cse5 .cse0 .cse6 .cse2) (and .cse9 .cse2 .cse3) (and .cse2 (or (and .cse5 .cse8 .cse3) (and .cse5 .cse1 .cse3))) (and .cse6 .cse3 .cse10) (and .cse9 .cse0 .cse2 .cse10) (and .cse7 .cse5 .cse8 .cse0) (and .cse8 .cse0 .cse6 .cse11))) [2021-12-07 00:32:14,618 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,618 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-12-07 00:32:14,618 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-12-07 00:32:14,618 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,618 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,618 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,618 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,618 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,618 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,618 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,619 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse4 (<= ~a25~0 9)) (.cse1 (<= ~a25~0 10)) (.cse3 (= ~a4~0 1)) (.cse9 (= ~a25~0 12)) (.cse2 (<= ~a29~0 599999)) (.cse10 (<= ~a23~0 137)) (.cse7 (= ~a25~0 13)) (.cse5 (<= (+ ~a23~0 43) 0)) (.cse8 (<= ~a29~0 275)) (.cse0 (= ~a4~0 0)) (.cse6 (= ~a25~0 11)) (.cse11 (<= ~a23~0 262))) (or (and .cse0 .cse1 (<= ~a29~0 130)) (and .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse2 .cse4) (and .cse6 .cse2 .cse3) (and .cse7 .cse2 .cse3) (and (<= ~a29~0 244) .cse1 .cse3) (and .cse8 .cse9 .cse0) (and .cse7 .cse0 (<= (+ 35913 ~a29~0) 0) .cse10) (and (<= ~a29~0 140) .cse0 .cse1 .cse11) (and (<= 307 ~a23~0) .cse1 .cse2 .cse3) (and .cse5 .cse0 .cse6 .cse2) (and .cse9 .cse2 .cse3) (and .cse2 (or (and .cse5 .cse8 .cse3) (and .cse5 .cse1 .cse3))) (and .cse6 .cse3 .cse10) (and .cse9 .cse0 .cse2 .cse10) (and .cse7 .cse5 .cse8 .cse0) (and .cse8 .cse0 .cse6 .cse11))) [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,620 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,621 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,622 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-12-07 00:32:14,623 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-12-07 00:32:14,624 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,625 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,626 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,627 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,628 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,629 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-07 00:32:14,630 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,631 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-12-07 00:32:14,632 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-12-07 00:32:14,632 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,632 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,632 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-12-07 00:32:14,632 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-12-07 00:32:14,632 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-12-07 00:32:14,632 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-12-07 00:32:14,634 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:32:14,635 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 00:32:14,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:32:14 BoogieIcfgContainer [2021-12-07 00:32:14,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 00:32:14,651 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:32:14,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:32:14,651 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:32:14,652 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:31:21" (3/4) ... [2021-12-07 00:32:14,654 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-07 00:32:14,677 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-07 00:32:14,679 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-07 00:32:14,681 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-07 00:32:14,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 00:32:14,807 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 00:32:14,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:32:14,808 INFO L158 Benchmark]: Toolchain (without parser) took 54835.60ms. Allocated memory was 155.2MB in the beginning and 723.5MB in the end (delta: 568.3MB). Free memory was 127.7MB in the beginning and 332.4MB in the end (delta: -204.7MB). Peak memory consumption was 363.2MB. Max. memory is 16.1GB. [2021-12-07 00:32:14,808 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 77.6MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:32:14,808 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.14ms. Allocated memory is still 155.2MB. Free memory was 127.7MB in the beginning and 94.4MB in the end (delta: 33.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-12-07 00:32:14,809 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.35ms. Allocated memory is still 155.2MB. Free memory was 94.4MB in the beginning and 119.3MB in the end (delta: -24.8MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2021-12-07 00:32:14,809 INFO L158 Benchmark]: Boogie Preprocessor took 80.40ms. Allocated memory is still 155.2MB. Free memory was 119.3MB in the beginning and 110.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 00:32:14,809 INFO L158 Benchmark]: RCFGBuilder took 1150.56ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 110.2MB in the beginning and 151.4MB in the end (delta: -41.1MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2021-12-07 00:32:14,810 INFO L158 Benchmark]: TraceAbstraction took 52770.86ms. Allocated memory was 197.1MB in the beginning and 723.5MB in the end (delta: 526.4MB). Free memory was 151.4MB in the beginning and 356.5MB in the end (delta: -205.2MB). Peak memory consumption was 529.9MB. Max. memory is 16.1GB. [2021-12-07 00:32:14,810 INFO L158 Benchmark]: Witness Printer took 156.08ms. Allocated memory is still 723.5MB. Free memory was 356.5MB in the beginning and 332.4MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-07 00:32:14,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 77.6MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.14ms. Allocated memory is still 155.2MB. Free memory was 127.7MB in the beginning and 94.4MB in the end (delta: 33.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.35ms. Allocated memory is still 155.2MB. Free memory was 94.4MB in the beginning and 119.3MB in the end (delta: -24.8MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.40ms. Allocated memory is still 155.2MB. Free memory was 119.3MB in the beginning and 110.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1150.56ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 110.2MB in the beginning and 151.4MB in the end (delta: -41.1MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. * TraceAbstraction took 52770.86ms. Allocated memory was 197.1MB in the beginning and 723.5MB in the end (delta: 526.4MB). Free memory was 151.4MB in the beginning and 356.5MB in the end (delta: -205.2MB). Peak memory consumption was 529.9MB. Max. memory is 16.1GB. * Witness Printer took 156.08ms. Allocated memory is still 723.5MB. Free memory was 356.5MB in the beginning and 332.4MB 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: 103]: 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: 52.7s, OverallIterations: 23, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 30.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4434 SdHoareTripleChecker+Valid, 14.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4434 mSDsluCounter, 4933 SdHoareTripleChecker+Invalid, 11.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 650 mSDsCounter, 2136 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16896 IncrementalHoareTripleChecker+Invalid, 19032 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2136 mSolverCounterUnsat, 4283 mSDtfsCounter, 16896 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1196 GetRequests, 1152 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15333occurred in iteration=21, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 23 MinimizatonAttempts, 26127 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 199 NumberOfFragments, 445 HoareAnnotationTreeSize, 3 FomulaSimplifications, 48774 FormulaSimplificationTreeSizeReduction, 27.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 234462 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 7093 NumberOfCodeBlocks, 7093 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 7067 ConstructedInterpolants, 0 QuantifiedInterpolants, 25186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1600 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 26 InterpolantComputations, 23 PerfectInterpolantSequences, 6225/6626 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: (((((((((((((((((a4 == 0 && a25 <= 10) && a29 <= 130) || ((a29 <= 599999 && a4 == 1) && a25 <= 9)) || (((a23 + 43 <= 0 && a4 == 0) && a29 <= 599999) && a25 <= 9)) || ((a25 == 11 && a29 <= 599999) && a4 == 1)) || ((a25 == 13 && a29 <= 599999) && a4 == 1)) || ((a29 <= 244 && a25 <= 10) && a4 == 1)) || ((a29 <= 275 && a25 == 12) && a4 == 0)) || (((a25 == 13 && a4 == 0) && 35913 + a29 <= 0) && a23 <= 137)) || (((a29 <= 140 && a4 == 0) && a25 <= 10) && a23 <= 262)) || (((307 <= a23 && a25 <= 10) && a29 <= 599999) && a4 == 1)) || (((a23 + 43 <= 0 && a4 == 0) && a25 == 11) && a29 <= 599999)) || ((a25 == 12 && a29 <= 599999) && a4 == 1)) || (a29 <= 599999 && (((a23 + 43 <= 0 && a29 <= 275) && a4 == 1) || ((a23 + 43 <= 0 && a25 <= 10) && a4 == 1)))) || ((a25 == 11 && a4 == 1) && a23 <= 137)) || (((a25 == 12 && a4 == 0) && a29 <= 599999) && a23 <= 137)) || (((a25 == 13 && a23 + 43 <= 0) && a29 <= 275) && a4 == 0)) || (((a29 <= 275 && a4 == 0) && a25 == 11) && a23 <= 262) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((a4 == 0 && a25 <= 10) && a29 <= 130) || ((a29 <= 599999 && a4 == 1) && a25 <= 9)) || (((a23 + 43 <= 0 && a4 == 0) && a29 <= 599999) && a25 <= 9)) || ((a25 == 11 && a29 <= 599999) && a4 == 1)) || ((a25 == 13 && a29 <= 599999) && a4 == 1)) || ((a29 <= 244 && a25 <= 10) && a4 == 1)) || ((a29 <= 275 && a25 == 12) && a4 == 0)) || (((a25 == 13 && a4 == 0) && 35913 + a29 <= 0) && a23 <= 137)) || (((a29 <= 140 && a4 == 0) && a25 <= 10) && a23 <= 262)) || (((307 <= a23 && a25 <= 10) && a29 <= 599999) && a4 == 1)) || (((a23 + 43 <= 0 && a4 == 0) && a25 == 11) && a29 <= 599999)) || ((a25 == 12 && a29 <= 599999) && a4 == 1)) || (a29 <= 599999 && (((a23 + 43 <= 0 && a29 <= 275) && a4 == 1) || ((a23 + 43 <= 0 && a25 <= 10) && a4 == 1)))) || ((a25 == 11 && a4 == 1) && a23 <= 137)) || (((a25 == 12 && a4 == 0) && a29 <= 599999) && a23 <= 137)) || (((a25 == 13 && a23 + 43 <= 0) && a29 <= 275) && a4 == 0)) || (((a29 <= 275 && a4 == 0) && a25 == 11) && a23 <= 262) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-07 00:32:14,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3fa761e-6aac-456a-81b0-ca33bd8367eb/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE