./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label56.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label56.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg --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 77c0c06cf345be89a7bfdea692ab0197740d9f5ad98baaf39e02029ee2fea03a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:57:05,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:57:05,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:57:05,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:57:05,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:57:05,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:57:05,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:57:05,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:57:05,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:57:05,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:57:05,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:57:05,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:57:05,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:57:05,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:57:05,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:57:05,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:57:05,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:57:05,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:57:05,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:57:05,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:57:05,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:57:05,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:57:05,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:57:05,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:57:05,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:57:05,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:57:05,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:57:05,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:57:05,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:57:05,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:57:05,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:57:05,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:57:05,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:57:05,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:57:05,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:57:05,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:57:05,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:57:05,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:57:05,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:57:05,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:57:05,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:57:05,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:57:05,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:57:05,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:57:05,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:57:05,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:57:05,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:57:05,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:57:05,224 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:57:05,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:57:05,224 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:57:05,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:57:05,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:57:05,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:57:05,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:57:05,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:57:05,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:57:05,226 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:57:05,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:57:05,227 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:57:05,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:57:05,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:57:05,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:57:05,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:57:05,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:57:05,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:57:05,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:57:05,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:57:05,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:57:05,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:57:05,229 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:57:05,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:57:05,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:57:05,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:57:05,230 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_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77c0c06cf345be89a7bfdea692ab0197740d9f5ad98baaf39e02029ee2fea03a [2021-10-28 08:57:05,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:57:05,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:57:05,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:57:05,490 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:57:05,491 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:57:05,492 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/eca-rers2012/Problem11_label56.c [2021-10-28 08:57:05,561 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/data/924b85791/e886217485e245d38cda93b432a3ed33/FLAG4a742534a [2021-10-28 08:57:06,245 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:57:06,246 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/sv-benchmarks/c/eca-rers2012/Problem11_label56.c [2021-10-28 08:57:06,266 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/data/924b85791/e886217485e245d38cda93b432a3ed33/FLAG4a742534a [2021-10-28 08:57:06,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/data/924b85791/e886217485e245d38cda93b432a3ed33 [2021-10-28 08:57:06,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:57:06,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:57:06,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:57:06,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:57:06,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:57:06,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:57:06" (1/1) ... [2021-10-28 08:57:06,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b45a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:06, skipping insertion in model container [2021-10-28 08:57:06,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:57:06" (1/1) ... [2021-10-28 08:57:06,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:57:06,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:57:06,751 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/sv-benchmarks/c/eca-rers2012/Problem11_label56.c[5994,6007] [2021-10-28 08:57:07,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:57:07,091 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:57:07,120 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/sv-benchmarks/c/eca-rers2012/Problem11_label56.c[5994,6007] [2021-10-28 08:57:07,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:57:07,340 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:57:07,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:07 WrapperNode [2021-10-28 08:57:07,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:57:07,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:57:07,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:57:07,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:57:07,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:07" (1/1) ... [2021-10-28 08:57:07,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:07" (1/1) ... [2021-10-28 08:57:07,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:57:07,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:57:07,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:57:07,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:57:07,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:07" (1/1) ... [2021-10-28 08:57:07,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:07" (1/1) ... [2021-10-28 08:57:07,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:07" (1/1) ... [2021-10-28 08:57:07,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:07" (1/1) ... [2021-10-28 08:57:07,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:07" (1/1) ... [2021-10-28 08:57:07,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:07" (1/1) ... [2021-10-28 08:57:07,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:07" (1/1) ... [2021-10-28 08:57:07,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:57:07,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:57:07,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:57:07,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:57:07,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:07" (1/1) ... [2021-10-28 08:57:07,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:57:07,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:57:07,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:57:07,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:57:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:57:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:57:07,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:57:07,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:57:09,631 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:57:09,632 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 08:57:09,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:57:09 BoogieIcfgContainer [2021-10-28 08:57:09,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:57:09,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:57:09,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:57:09,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:57:09,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:57:06" (1/3) ... [2021-10-28 08:57:09,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6316199f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:57:09, skipping insertion in model container [2021-10-28 08:57:09,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:57:07" (2/3) ... [2021-10-28 08:57:09,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6316199f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:57:09, skipping insertion in model container [2021-10-28 08:57:09,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:57:09" (3/3) ... [2021-10-28 08:57:09,652 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label56.c [2021-10-28 08:57:09,659 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:57:09,659 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:57:09,721 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:57:09,729 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:57:09,729 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 08:57:09,761 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) [2021-10-28 08:57:09,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 08:57:09,770 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:09,770 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:09,771 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:09,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:09,776 INFO L85 PathProgramCache]: Analyzing trace with hash 751578873, now seen corresponding path program 1 times [2021-10-28 08:57:09,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:09,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486650865] [2021-10-28 08:57:09,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:09,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:57:10,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:10,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486650865] [2021-10-28 08:57:10,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486650865] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:10,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:10,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:57:10,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180646205] [2021-10-28 08:57:10,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:10,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:10,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:10,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:10,152 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 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:11,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:11,600 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2021-10-28 08:57:11,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:11,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-10-28 08:57:11,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:11,618 INFO L225 Difference]: With dead ends: 776 [2021-10-28 08:57:11,619 INFO L226 Difference]: Without dead ends: 413 [2021-10-28 08:57:11,623 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:11,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-10-28 08:57:11,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2021-10-28 08:57:11,686 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) [2021-10-28 08:57:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2021-10-28 08:57:11,689 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 41 [2021-10-28 08:57:11,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:11,690 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2021-10-28 08:57:11,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:11,691 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2021-10-28 08:57:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-10-28 08:57:11,696 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:11,696 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:11,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:57:11,696 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:11,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:11,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1616931328, now seen corresponding path program 1 times [2021-10-28 08:57:11,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:11,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911332068] [2021-10-28 08:57:11,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:11,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:11,832 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:57:11,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:11,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911332068] [2021-10-28 08:57:11,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911332068] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:11,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:11,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:57:11,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839650122] [2021-10-28 08:57:11,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:11,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:11,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:11,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:11,836 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:12,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:12,763 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2021-10-28 08:57:12,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:12,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-10-28 08:57:12,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:12,769 INFO L225 Difference]: With dead ends: 1209 [2021-10-28 08:57:12,769 INFO L226 Difference]: Without dead ends: 800 [2021-10-28 08:57:12,773 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:12,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-10-28 08:57:12,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2021-10-28 08:57:12,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.3842239185750635) internal successors, (1088), 786 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:12,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1088 transitions. [2021-10-28 08:57:12,823 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1088 transitions. Word has length 109 [2021-10-28 08:57:12,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:12,824 INFO L470 AbstractCegarLoop]: Abstraction has 787 states and 1088 transitions. [2021-10-28 08:57:12,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:12,825 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1088 transitions. [2021-10-28 08:57:12,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-10-28 08:57:12,829 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:12,829 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:12,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:57:12,830 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:12,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:12,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1753081093, now seen corresponding path program 1 times [2021-10-28 08:57:12,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:12,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233619571] [2021-10-28 08:57:12,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:12,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:57:13,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:13,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233619571] [2021-10-28 08:57:13,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233619571] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:13,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:13,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:57:13,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134516475] [2021-10-28 08:57:13,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:13,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:13,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:13,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:13,042 INFO L87 Difference]: Start difference. First operand 787 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:13,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:13,906 INFO L93 Difference]: Finished difference Result 1942 states and 2629 transitions. [2021-10-28 08:57:13,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:13,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-10-28 08:57:13,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:13,914 INFO L225 Difference]: With dead ends: 1942 [2021-10-28 08:57:13,914 INFO L226 Difference]: Without dead ends: 1157 [2021-10-28 08:57:13,915 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:13,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-10-28 08:57:13,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156. [2021-10-28 08:57:13,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.277056277056277) internal successors, (1475), 1155 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:13,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1475 transitions. [2021-10-28 08:57:13,949 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1475 transitions. Word has length 111 [2021-10-28 08:57:13,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:13,950 INFO L470 AbstractCegarLoop]: Abstraction has 1156 states and 1475 transitions. [2021-10-28 08:57:13,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:13,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1475 transitions. [2021-10-28 08:57:13,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-10-28 08:57:13,955 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:13,955 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:13,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:57:13,956 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:13,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:13,957 INFO L85 PathProgramCache]: Analyzing trace with hash -299670212, now seen corresponding path program 1 times [2021-10-28 08:57:13,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:13,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539915923] [2021-10-28 08:57:13,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:13,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:14,080 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:57:14,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:14,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539915923] [2021-10-28 08:57:14,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539915923] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:14,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:14,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:14,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752454112] [2021-10-28 08:57:14,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:14,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:14,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:14,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:14,084 INFO L87 Difference]: Start difference. First operand 1156 states and 1475 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) [2021-10-28 08:57:14,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:14,983 INFO L93 Difference]: Finished difference Result 2691 states and 3513 transitions. [2021-10-28 08:57:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:14,985 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 153 [2021-10-28 08:57:14,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:14,996 INFO L225 Difference]: With dead ends: 2691 [2021-10-28 08:57:14,997 INFO L226 Difference]: Without dead ends: 1721 [2021-10-28 08:57:15,000 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:15,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2021-10-28 08:57:15,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1528. [2021-10-28 08:57:15,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 1.260641781270465) internal successors, (1925), 1527 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:15,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1925 transitions. [2021-10-28 08:57:15,042 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1925 transitions. Word has length 153 [2021-10-28 08:57:15,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:15,043 INFO L470 AbstractCegarLoop]: Abstraction has 1528 states and 1925 transitions. [2021-10-28 08:57:15,044 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) [2021-10-28 08:57:15,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1925 transitions. [2021-10-28 08:57:15,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-10-28 08:57:15,050 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:15,051 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-28 08:57:15,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:57:15,051 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:15,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:15,053 INFO L85 PathProgramCache]: Analyzing trace with hash 13927688, now seen corresponding path program 1 times [2021-10-28 08:57:15,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:15,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528798251] [2021-10-28 08:57:15,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:15,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:15,307 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-10-28 08:57:15,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:15,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528798251] [2021-10-28 08:57:15,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528798251] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:15,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:15,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:15,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264252941] [2021-10-28 08:57:15,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:15,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:15,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:15,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:15,317 INFO L87 Difference]: Start difference. First operand 1528 states and 1925 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:16,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:16,309 INFO L93 Difference]: Finished difference Result 4160 states and 5315 transitions. [2021-10-28 08:57:16,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:16,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 223 [2021-10-28 08:57:16,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:16,326 INFO L225 Difference]: With dead ends: 4160 [2021-10-28 08:57:16,326 INFO L226 Difference]: Without dead ends: 2634 [2021-10-28 08:57:16,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:16,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2021-10-28 08:57:16,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2634. [2021-10-28 08:57:16,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2634 states, 2633 states have (on average 1.2468666919863274) internal successors, (3283), 2633 states have internal predecessors, (3283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:16,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2634 states to 2634 states and 3283 transitions. [2021-10-28 08:57:16,394 INFO L78 Accepts]: Start accepts. Automaton has 2634 states and 3283 transitions. Word has length 223 [2021-10-28 08:57:16,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:16,395 INFO L470 AbstractCegarLoop]: Abstraction has 2634 states and 3283 transitions. [2021-10-28 08:57:16,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:16,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2634 states and 3283 transitions. [2021-10-28 08:57:16,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-10-28 08:57:16,400 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:16,401 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2021-10-28 08:57:16,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 08:57:16,401 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:16,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:16,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1861643749, now seen corresponding path program 1 times [2021-10-28 08:57:16,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:16,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081311898] [2021-10-28 08:57:16,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:16,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:16,503 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-28 08:57:16,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:16,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081311898] [2021-10-28 08:57:16,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081311898] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:16,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:16,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:57:16,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32081251] [2021-10-28 08:57:16,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:16,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:16,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:16,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:16,507 INFO L87 Difference]: Start difference. First operand 2634 states and 3283 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:17,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:17,396 INFO L93 Difference]: Finished difference Result 6553 states and 8157 transitions. [2021-10-28 08:57:17,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:17,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-10-28 08:57:17,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:17,422 INFO L225 Difference]: With dead ends: 6553 [2021-10-28 08:57:17,423 INFO L226 Difference]: Without dead ends: 3921 [2021-10-28 08:57:17,426 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:17,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3921 states. [2021-10-28 08:57:17,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3921 to 3185. [2021-10-28 08:57:17,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 3184 states have (on average 1.1699120603015076) internal successors, (3725), 3184 states have internal predecessors, (3725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:17,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 3725 transitions. [2021-10-28 08:57:17,528 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 3725 transitions. Word has length 234 [2021-10-28 08:57:17,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:17,529 INFO L470 AbstractCegarLoop]: Abstraction has 3185 states and 3725 transitions. [2021-10-28 08:57:17,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:17,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 3725 transitions. [2021-10-28 08:57:17,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-10-28 08:57:17,537 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:17,537 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-28 08:57:17,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 08:57:17,538 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:17,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:17,539 INFO L85 PathProgramCache]: Analyzing trace with hash 748674339, now seen corresponding path program 1 times [2021-10-28 08:57:17,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:17,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316902810] [2021-10-28 08:57:17,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:17,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-10-28 08:57:17,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:17,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316902810] [2021-10-28 08:57:17,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316902810] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:17,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:17,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:17,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984295983] [2021-10-28 08:57:17,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:17,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:17,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:17,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:17,742 INFO L87 Difference]: Start difference. First operand 3185 states and 3725 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:18,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:18,700 INFO L93 Difference]: Finished difference Result 7108 states and 8338 transitions. [2021-10-28 08:57:18,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:18,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 250 [2021-10-28 08:57:18,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:18,724 INFO L225 Difference]: With dead ends: 7108 [2021-10-28 08:57:18,724 INFO L226 Difference]: Without dead ends: 3925 [2021-10-28 08:57:18,728 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:18,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3925 states. [2021-10-28 08:57:18,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3925 to 3736. [2021-10-28 08:57:18,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3736 states, 3735 states have (on average 1.1606425702811245) internal successors, (4335), 3735 states have internal predecessors, (4335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:18,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 4335 transitions. [2021-10-28 08:57:18,822 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 4335 transitions. Word has length 250 [2021-10-28 08:57:18,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:18,823 INFO L470 AbstractCegarLoop]: Abstraction has 3736 states and 4335 transitions. [2021-10-28 08:57:18,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:18,824 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 4335 transitions. [2021-10-28 08:57:18,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-10-28 08:57:18,829 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:18,830 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-28 08:57:18,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 08:57:18,830 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:18,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:18,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1804774869, now seen corresponding path program 1 times [2021-10-28 08:57:18,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:18,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434159764] [2021-10-28 08:57:18,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:18,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:18,963 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-10-28 08:57:18,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:18,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434159764] [2021-10-28 08:57:18,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434159764] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:18,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:18,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:18,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294598024] [2021-10-28 08:57:18,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:18,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:18,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:18,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:18,966 INFO L87 Difference]: Start difference. First operand 3736 states and 4335 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:19,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:19,889 INFO L93 Difference]: Finished difference Result 8579 states and 9918 transitions. [2021-10-28 08:57:19,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:19,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 263 [2021-10-28 08:57:19,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:19,919 INFO L225 Difference]: With dead ends: 8579 [2021-10-28 08:57:19,919 INFO L226 Difference]: Without dead ends: 4845 [2021-10-28 08:57:19,924 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:19,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4845 states. [2021-10-28 08:57:20,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4845 to 4844. [2021-10-28 08:57:20,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4844 states, 4843 states have (on average 1.1525913689861655) internal successors, (5582), 4843 states have internal predecessors, (5582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:20,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 5582 transitions. [2021-10-28 08:57:20,064 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 5582 transitions. Word has length 263 [2021-10-28 08:57:20,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:20,065 INFO L470 AbstractCegarLoop]: Abstraction has 4844 states and 5582 transitions. [2021-10-28 08:57:20,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:20,065 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 5582 transitions. [2021-10-28 08:57:20,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-10-28 08:57:20,071 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:20,072 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-28 08:57:20,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 08:57:20,072 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:20,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:20,073 INFO L85 PathProgramCache]: Analyzing trace with hash -789875443, now seen corresponding path program 1 times [2021-10-28 08:57:20,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:20,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293574134] [2021-10-28 08:57:20,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:20,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:57:20,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:20,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293574134] [2021-10-28 08:57:20,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293574134] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:20,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:20,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:20,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498845804] [2021-10-28 08:57:20,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:57:20,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:20,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:57:20,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:57:20,257 INFO L87 Difference]: Start difference. First operand 4844 states and 5582 transitions. Second operand has 4 states, 4 states have (on average 68.0) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:22,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:22,008 INFO L93 Difference]: Finished difference Result 13562 states and 15894 transitions. [2021-10-28 08:57:22,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:57:22,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 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 272 [2021-10-28 08:57:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:22,054 INFO L225 Difference]: With dead ends: 13562 [2021-10-28 08:57:22,055 INFO L226 Difference]: Without dead ends: 9088 [2021-10-28 08:57:22,061 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:57:22,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9088 states. [2021-10-28 08:57:22,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9088 to 8897. [2021-10-28 08:57:22,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8896 states have (on average 1.1535521582733812) internal successors, (10262), 8896 states have internal predecessors, (10262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:22,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 10262 transitions. [2021-10-28 08:57:22,257 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 10262 transitions. Word has length 272 [2021-10-28 08:57:22,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:22,258 INFO L470 AbstractCegarLoop]: Abstraction has 8897 states and 10262 transitions. [2021-10-28 08:57:22,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:22,258 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 10262 transitions. [2021-10-28 08:57:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-10-28 08:57:22,267 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:22,268 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-28 08:57:22,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 08:57:22,268 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:22,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:22,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1520405194, now seen corresponding path program 1 times [2021-10-28 08:57:22,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:22,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602956980] [2021-10-28 08:57:22,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:22,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:22,400 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-28 08:57:22,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:22,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602956980] [2021-10-28 08:57:22,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602956980] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:22,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:22,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:22,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401715368] [2021-10-28 08:57:22,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:22,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:22,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:22,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:22,403 INFO L87 Difference]: Start difference. First operand 8897 states and 10262 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:23,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:23,455 INFO L93 Difference]: Finished difference Result 19635 states and 22699 transitions. [2021-10-28 08:57:23,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:23,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 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 [2021-10-28 08:57:23,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:23,484 INFO L225 Difference]: With dead ends: 19635 [2021-10-28 08:57:23,484 INFO L226 Difference]: Without dead ends: 11108 [2021-10-28 08:57:23,494 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:23,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11108 states. [2021-10-28 08:57:23,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11108 to 10737. [2021-10-28 08:57:23,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10737 states, 10736 states have (on average 1.1461438152011922) internal successors, (12305), 10736 states have internal predecessors, (12305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10737 states to 10737 states and 12305 transitions. [2021-10-28 08:57:23,689 INFO L78 Accepts]: Start accepts. Automaton has 10737 states and 12305 transitions. Word has length 300 [2021-10-28 08:57:23,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:23,690 INFO L470 AbstractCegarLoop]: Abstraction has 10737 states and 12305 transitions. [2021-10-28 08:57:23,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:23,691 INFO L276 IsEmpty]: Start isEmpty. Operand 10737 states and 12305 transitions. [2021-10-28 08:57:23,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-10-28 08:57:23,701 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:23,702 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-28 08:57:23,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 08:57:23,702 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:23,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:23,703 INFO L85 PathProgramCache]: Analyzing trace with hash -582865195, now seen corresponding path program 1 times [2021-10-28 08:57:23,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:23,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882980041] [2021-10-28 08:57:23,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:23,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-10-28 08:57:23,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:23,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882980041] [2021-10-28 08:57:23,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882980041] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:23,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:23,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:57:23,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710742484] [2021-10-28 08:57:23,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:23,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:23,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:23,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:23,951 INFO L87 Difference]: Start difference. First operand 10737 states and 12305 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:24,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:24,789 INFO L93 Difference]: Finished difference Result 23502 states and 26923 transitions. [2021-10-28 08:57:24,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:24,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 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 302 [2021-10-28 08:57:24,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:24,815 INFO L225 Difference]: With dead ends: 23502 [2021-10-28 08:57:24,815 INFO L226 Difference]: Without dead ends: 13135 [2021-10-28 08:57:24,827 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:24,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13135 states. [2021-10-28 08:57:24,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13135 to 10737. [2021-10-28 08:57:25,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10737 states, 10736 states have (on average 1.1461438152011922) internal successors, (12305), 10736 states have internal predecessors, (12305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:25,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10737 states to 10737 states and 12305 transitions. [2021-10-28 08:57:25,025 INFO L78 Accepts]: Start accepts. Automaton has 10737 states and 12305 transitions. Word has length 302 [2021-10-28 08:57:25,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:25,025 INFO L470 AbstractCegarLoop]: Abstraction has 10737 states and 12305 transitions. [2021-10-28 08:57:25,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:25,026 INFO L276 IsEmpty]: Start isEmpty. Operand 10737 states and 12305 transitions. [2021-10-28 08:57:25,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-10-28 08:57:25,042 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:25,043 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:25,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 08:57:25,043 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:25,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:25,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2113040803, now seen corresponding path program 1 times [2021-10-28 08:57:25,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:25,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694288906] [2021-10-28 08:57:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:25,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:25,219 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-28 08:57:25,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:25,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694288906] [2021-10-28 08:57:25,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694288906] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:25,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:25,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:25,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579389206] [2021-10-28 08:57:25,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:25,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:25,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:25,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:25,222 INFO L87 Difference]: Start difference. First operand 10737 states and 12305 transitions. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:26,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:26,023 INFO L93 Difference]: Finished difference Result 21102 states and 24226 transitions. [2021-10-28 08:57:26,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:26,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 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 377 [2021-10-28 08:57:26,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:26,049 INFO L225 Difference]: With dead ends: 21102 [2021-10-28 08:57:26,050 INFO L226 Difference]: Without dead ends: 10735 [2021-10-28 08:57:26,060 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:26,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10735 states. [2021-10-28 08:57:26,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10735 to 10735. [2021-10-28 08:57:26,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10735 states, 10734 states have (on average 1.1424445686603317) internal successors, (12263), 10734 states have internal predecessors, (12263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:26,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10735 states to 10735 states and 12263 transitions. [2021-10-28 08:57:26,232 INFO L78 Accepts]: Start accepts. Automaton has 10735 states and 12263 transitions. Word has length 377 [2021-10-28 08:57:26,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:26,233 INFO L470 AbstractCegarLoop]: Abstraction has 10735 states and 12263 transitions. [2021-10-28 08:57:26,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:26,233 INFO L276 IsEmpty]: Start isEmpty. Operand 10735 states and 12263 transitions. [2021-10-28 08:57:26,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2021-10-28 08:57:26,284 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:26,285 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:26,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 08:57:26,285 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:26,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:26,286 INFO L85 PathProgramCache]: Analyzing trace with hash 231637248, now seen corresponding path program 1 times [2021-10-28 08:57:26,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:26,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398380458] [2021-10-28 08:57:26,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:26,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:26,473 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2021-10-28 08:57:26,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:26,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398380458] [2021-10-28 08:57:26,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398380458] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:26,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:26,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:26,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267760135] [2021-10-28 08:57:26,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:26,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:26,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:26,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:26,477 INFO L87 Difference]: Start difference. First operand 10735 states and 12263 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:27,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:27,449 INFO L93 Difference]: Finished difference Result 22755 states and 26004 transitions. [2021-10-28 08:57:27,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:27,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2021-10-28 08:57:27,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:27,477 INFO L225 Difference]: With dead ends: 22755 [2021-10-28 08:57:27,477 INFO L226 Difference]: Without dead ends: 12390 [2021-10-28 08:57:27,489 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:27,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12390 states. [2021-10-28 08:57:27,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12390 to 8522. [2021-10-28 08:57:27,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8522 states, 8521 states have (on average 1.1475178969604507) internal successors, (9778), 8521 states have internal predecessors, (9778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:27,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8522 states to 8522 states and 9778 transitions. [2021-10-28 08:57:27,731 INFO L78 Accepts]: Start accepts. Automaton has 8522 states and 9778 transitions. Word has length 391 [2021-10-28 08:57:27,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:27,732 INFO L470 AbstractCegarLoop]: Abstraction has 8522 states and 9778 transitions. [2021-10-28 08:57:27,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:27,733 INFO L276 IsEmpty]: Start isEmpty. Operand 8522 states and 9778 transitions. [2021-10-28 08:57:27,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-10-28 08:57:27,755 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:27,755 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-28 08:57:27,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 08:57:27,756 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:27,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:27,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1234284050, now seen corresponding path program 1 times [2021-10-28 08:57:27,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:27,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017206328] [2021-10-28 08:57:27,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:27,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:28,015 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-28 08:57:28,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:28,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017206328] [2021-10-28 08:57:28,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017206328] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:28,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:28,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:28,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745297245] [2021-10-28 08:57:28,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:28,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:28,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:28,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:28,019 INFO L87 Difference]: Start difference. First operand 8522 states and 9778 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:29,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:29,075 INFO L93 Difference]: Finished difference Result 18529 states and 21265 transitions. [2021-10-28 08:57:29,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:29,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 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 413 [2021-10-28 08:57:29,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:29,099 INFO L225 Difference]: With dead ends: 18529 [2021-10-28 08:57:29,099 INFO L226 Difference]: Without dead ends: 10009 [2021-10-28 08:57:29,107 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:29,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10009 states. [2021-10-28 08:57:29,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10009 to 9810. [2021-10-28 08:57:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9810 states, 9809 states have (on average 1.1300846161688245) internal successors, (11085), 9809 states have internal predecessors, (11085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9810 states to 9810 states and 11085 transitions. [2021-10-28 08:57:29,365 INFO L78 Accepts]: Start accepts. Automaton has 9810 states and 11085 transitions. Word has length 413 [2021-10-28 08:57:29,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:29,366 INFO L470 AbstractCegarLoop]: Abstraction has 9810 states and 11085 transitions. [2021-10-28 08:57:29,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:29,366 INFO L276 IsEmpty]: Start isEmpty. Operand 9810 states and 11085 transitions. [2021-10-28 08:57:29,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2021-10-28 08:57:29,396 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:29,397 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:29,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 08:57:29,397 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:29,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:29,398 INFO L85 PathProgramCache]: Analyzing trace with hash -187531985, now seen corresponding path program 1 times [2021-10-28 08:57:29,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:29,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98402999] [2021-10-28 08:57:29,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:29,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:29,655 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2021-10-28 08:57:29,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:29,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98402999] [2021-10-28 08:57:29,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98402999] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:29,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:29,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:29,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212412995] [2021-10-28 08:57:29,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:29,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:29,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:29,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:29,659 INFO L87 Difference]: Start difference. First operand 9810 states and 11085 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:30,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:30,782 INFO L93 Difference]: Finished difference Result 19444 states and 21991 transitions. [2021-10-28 08:57:30,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:30,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 494 [2021-10-28 08:57:30,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:30,804 INFO L225 Difference]: With dead ends: 19444 [2021-10-28 08:57:30,805 INFO L226 Difference]: Without dead ends: 9818 [2021-10-28 08:57:30,814 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:30,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9818 states. [2021-10-28 08:57:31,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9818 to 9808. [2021-10-28 08:57:31,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9808 states, 9807 states have (on average 1.1007443662689915) internal successors, (10795), 9807 states have internal predecessors, (10795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:31,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9808 states to 9808 states and 10795 transitions. [2021-10-28 08:57:31,054 INFO L78 Accepts]: Start accepts. Automaton has 9808 states and 10795 transitions. Word has length 494 [2021-10-28 08:57:31,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:31,055 INFO L470 AbstractCegarLoop]: Abstraction has 9808 states and 10795 transitions. [2021-10-28 08:57:31,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:31,055 INFO L276 IsEmpty]: Start isEmpty. Operand 9808 states and 10795 transitions. [2021-10-28 08:57:31,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2021-10-28 08:57:31,077 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:31,077 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2021-10-28 08:57:31,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 08:57:31,078 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:31,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:31,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1135290674, now seen corresponding path program 1 times [2021-10-28 08:57:31,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:31,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626549774] [2021-10-28 08:57:31,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:31,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 544 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2021-10-28 08:57:31,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:31,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626549774] [2021-10-28 08:57:31,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626549774] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:31,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:31,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:31,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084976353] [2021-10-28 08:57:31,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:31,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:31,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:31,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:31,292 INFO L87 Difference]: Start difference. First operand 9808 states and 10795 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:32,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:32,182 INFO L93 Difference]: Finished difference Result 21280 states and 23445 transitions. [2021-10-28 08:57:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:32,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 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 501 [2021-10-28 08:57:32,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:32,203 INFO L225 Difference]: With dead ends: 21280 [2021-10-28 08:57:32,204 INFO L226 Difference]: Without dead ends: 11842 [2021-10-28 08:57:32,211 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:32,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11842 states. [2021-10-28 08:57:32,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11842 to 10917. [2021-10-28 08:57:32,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10917 states, 10916 states have (on average 1.0979296445584463) internal successors, (11985), 10916 states have internal predecessors, (11985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:32,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10917 states to 10917 states and 11985 transitions. [2021-10-28 08:57:32,452 INFO L78 Accepts]: Start accepts. Automaton has 10917 states and 11985 transitions. Word has length 501 [2021-10-28 08:57:32,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:32,453 INFO L470 AbstractCegarLoop]: Abstraction has 10917 states and 11985 transitions. [2021-10-28 08:57:32,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:32,454 INFO L276 IsEmpty]: Start isEmpty. Operand 10917 states and 11985 transitions. [2021-10-28 08:57:32,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2021-10-28 08:57:32,480 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:32,481 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:32,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 08:57:32,482 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:32,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:32,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1489523097, now seen corresponding path program 1 times [2021-10-28 08:57:32,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:32,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006100624] [2021-10-28 08:57:32,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:32,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:32,783 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-10-28 08:57:32,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:32,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006100624] [2021-10-28 08:57:32,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006100624] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:32,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:32,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:32,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121543636] [2021-10-28 08:57:32,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:57:32,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:32,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:57:32,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:57:32,787 INFO L87 Difference]: Start difference. First operand 10917 states and 11985 transitions. Second operand has 4 states, 4 states have (on average 98.25) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:34,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:34,261 INFO L93 Difference]: Finished difference Result 28476 states and 31258 transitions. [2021-10-28 08:57:34,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:57:34,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 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 511 [2021-10-28 08:57:34,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:34,297 INFO L225 Difference]: With dead ends: 28476 [2021-10-28 08:57:34,298 INFO L226 Difference]: Without dead ends: 17377 [2021-10-28 08:57:34,308 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:57:34,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17377 states. [2021-10-28 08:57:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17377 to 16455. [2021-10-28 08:57:34,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16455 states, 16454 states have (on average 1.092378752886836) internal successors, (17974), 16454 states have internal predecessors, (17974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:34,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16455 states to 16455 states and 17974 transitions. [2021-10-28 08:57:34,636 INFO L78 Accepts]: Start accepts. Automaton has 16455 states and 17974 transitions. Word has length 511 [2021-10-28 08:57:34,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:34,637 INFO L470 AbstractCegarLoop]: Abstraction has 16455 states and 17974 transitions. [2021-10-28 08:57:34,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:34,638 INFO L276 IsEmpty]: Start isEmpty. Operand 16455 states and 17974 transitions. [2021-10-28 08:57:34,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2021-10-28 08:57:34,676 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:34,677 INFO L513 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, 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, 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, 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] [2021-10-28 08:57:34,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 08:57:34,678 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:34,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:34,678 INFO L85 PathProgramCache]: Analyzing trace with hash -430183781, now seen corresponding path program 1 times [2021-10-28 08:57:34,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:34,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335971001] [2021-10-28 08:57:34,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:34,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:34,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 877 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-28 08:57:34,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:34,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335971001] [2021-10-28 08:57:34,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335971001] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:34,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:34,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:34,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444687115] [2021-10-28 08:57:34,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:34,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:34,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:34,960 INFO L87 Difference]: Start difference. First operand 16455 states and 17974 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:35,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:35,875 INFO L93 Difference]: Finished difference Result 34205 states and 37381 transitions. [2021-10-28 08:57:35,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:35,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 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 607 [2021-10-28 08:57:35,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:35,897 INFO L225 Difference]: With dead ends: 34205 [2021-10-28 08:57:35,898 INFO L226 Difference]: Without dead ends: 18120 [2021-10-28 08:57:35,909 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:35,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18120 states. [2021-10-28 08:57:36,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18120 to 16271. [2021-10-28 08:57:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16271 states, 16270 states have (on average 1.0920712968653965) internal successors, (17768), 16270 states have internal predecessors, (17768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:36,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16271 states to 16271 states and 17768 transitions. [2021-10-28 08:57:36,190 INFO L78 Accepts]: Start accepts. Automaton has 16271 states and 17768 transitions. Word has length 607 [2021-10-28 08:57:36,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:36,191 INFO L470 AbstractCegarLoop]: Abstraction has 16271 states and 17768 transitions. [2021-10-28 08:57:36,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:36,192 INFO L276 IsEmpty]: Start isEmpty. Operand 16271 states and 17768 transitions. [2021-10-28 08:57:36,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2021-10-28 08:57:36,214 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:36,215 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:36,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 08:57:36,216 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:36,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:36,217 INFO L85 PathProgramCache]: Analyzing trace with hash 522658155, now seen corresponding path program 1 times [2021-10-28 08:57:36,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:36,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655313629] [2021-10-28 08:57:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:36,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 693 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2021-10-28 08:57:36,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:36,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655313629] [2021-10-28 08:57:36,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655313629] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:36,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:36,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:36,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843516455] [2021-10-28 08:57:36,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:36,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:36,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:36,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:36,513 INFO L87 Difference]: Start difference. First operand 16271 states and 17768 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:37,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:37,379 INFO L93 Difference]: Finished difference Result 33827 states and 36954 transitions. [2021-10-28 08:57:37,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:37,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 635 [2021-10-28 08:57:37,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:37,403 INFO L225 Difference]: With dead ends: 33827 [2021-10-28 08:57:37,404 INFO L226 Difference]: Without dead ends: 17926 [2021-10-28 08:57:37,413 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:37,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17926 states. [2021-10-28 08:57:37,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17926 to 14972. [2021-10-28 08:57:37,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14972 states, 14971 states have (on average 1.09030792866208) internal successors, (16323), 14971 states have internal predecessors, (16323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:37,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14972 states to 14972 states and 16323 transitions. [2021-10-28 08:57:37,656 INFO L78 Accepts]: Start accepts. Automaton has 14972 states and 16323 transitions. Word has length 635 [2021-10-28 08:57:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:37,657 INFO L470 AbstractCegarLoop]: Abstraction has 14972 states and 16323 transitions. [2021-10-28 08:57:37,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:37,658 INFO L276 IsEmpty]: Start isEmpty. Operand 14972 states and 16323 transitions. [2021-10-28 08:57:37,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2021-10-28 08:57:37,678 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:37,679 INFO L513 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, 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, 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, 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] [2021-10-28 08:57:37,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 08:57:37,679 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:37,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:37,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1081395098, now seen corresponding path program 1 times [2021-10-28 08:57:37,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:37,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50776707] [2021-10-28 08:57:37,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:37,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:38,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 837 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-10-28 08:57:38,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:38,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50776707] [2021-10-28 08:57:38,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50776707] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:38,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:38,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:57:38,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256266764] [2021-10-28 08:57:38,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:57:38,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:38,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:57:38,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:57:38,261 INFO L87 Difference]: Start difference. First operand 14972 states and 16323 transitions. Second operand has 7 states, 7 states have (on average 59.0) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:40,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:40,384 INFO L93 Difference]: Finished difference Result 35784 states and 38949 transitions. [2021-10-28 08:57:40,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:57:40,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 59.0) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 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 662 [2021-10-28 08:57:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:40,410 INFO L225 Difference]: With dead ends: 35784 [2021-10-28 08:57:40,410 INFO L226 Difference]: Without dead ends: 21182 [2021-10-28 08:57:40,420 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:57:40,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21182 states. [2021-10-28 08:57:40,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21182 to 20677. [2021-10-28 08:57:40,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20677 states, 20676 states have (on average 1.0872025536854324) internal successors, (22479), 20676 states have internal predecessors, (22479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:40,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20677 states to 20677 states and 22479 transitions. [2021-10-28 08:57:40,801 INFO L78 Accepts]: Start accepts. Automaton has 20677 states and 22479 transitions. Word has length 662 [2021-10-28 08:57:40,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:40,802 INFO L470 AbstractCegarLoop]: Abstraction has 20677 states and 22479 transitions. [2021-10-28 08:57:40,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.0) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:40,803 INFO L276 IsEmpty]: Start isEmpty. Operand 20677 states and 22479 transitions. [2021-10-28 08:57:40,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2021-10-28 08:57:40,826 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:40,828 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:40,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-28 08:57:40,829 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:40,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:40,830 INFO L85 PathProgramCache]: Analyzing trace with hash -118562656, now seen corresponding path program 1 times [2021-10-28 08:57:40,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:40,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437771846] [2021-10-28 08:57:40,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:40,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:41,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 1119 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2021-10-28 08:57:41,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:41,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437771846] [2021-10-28 08:57:41,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437771846] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:41,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:57:41,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:57:41,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509949925] [2021-10-28 08:57:41,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:41,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:41,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:41,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:41,145 INFO L87 Difference]: Start difference. First operand 20677 states and 22479 transitions. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:42,353 INFO L93 Difference]: Finished difference Result 43374 states and 47177 transitions. [2021-10-28 08:57:42,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:42,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 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 670 [2021-10-28 08:57:42,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:42,386 INFO L225 Difference]: With dead ends: 43374 [2021-10-28 08:57:42,386 INFO L226 Difference]: Without dead ends: 23067 [2021-10-28 08:57:42,399 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:57:42,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23067 states. [2021-10-28 08:57:42,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23067 to 15519. [2021-10-28 08:57:42,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15519 states, 15518 states have (on average 1.088993426988014) internal successors, (16899), 15518 states have internal predecessors, (16899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:42,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15519 states to 15519 states and 16899 transitions. [2021-10-28 08:57:42,743 INFO L78 Accepts]: Start accepts. Automaton has 15519 states and 16899 transitions. Word has length 670 [2021-10-28 08:57:42,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:42,744 INFO L470 AbstractCegarLoop]: Abstraction has 15519 states and 16899 transitions. [2021-10-28 08:57:42,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:42,745 INFO L276 IsEmpty]: Start isEmpty. Operand 15519 states and 16899 transitions. [2021-10-28 08:57:42,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2021-10-28 08:57:42,766 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:42,767 INFO L513 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:42,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-28 08:57:42,767 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:42,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:42,768 INFO L85 PathProgramCache]: Analyzing trace with hash -2057566227, now seen corresponding path program 1 times [2021-10-28 08:57:42,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:42,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233540326] [2021-10-28 08:57:42,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:42,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 859 proven. 8 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-10-28 08:57:43,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:43,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233540326] [2021-10-28 08:57:43,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233540326] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:57:43,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899603879] [2021-10-28 08:57:43,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:43,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:57:43,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:57:43,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:57:43,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:57:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:43,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:57:43,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:57:47,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 746 proven. 121 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-10-28 08:57:47,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899603879] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:57:47,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:57:47,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2021-10-28 08:57:47,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100629946] [2021-10-28 08:57:47,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:57:47,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:47,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:57:47,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:57:47,127 INFO L87 Difference]: Start difference. First operand 15519 states and 16899 transitions. Second operand has 9 states, 9 states have (on average 78.55555555555556) internal successors, (707), 8 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:50,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:50,658 INFO L93 Difference]: Finished difference Result 36316 states and 39417 transitions. [2021-10-28 08:57:50,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 08:57:50,661 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 78.55555555555556) internal successors, (707), 8 states have internal predecessors, (707), 0 states have call successors, (0), 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 672 [2021-10-28 08:57:50,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:50,689 INFO L225 Difference]: With dead ends: 36316 [2021-10-28 08:57:50,689 INFO L226 Difference]: Without dead ends: 21351 [2021-10-28 08:57:50,699 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2021-10-28 08:57:50,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21351 states. [2021-10-28 08:57:51,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21351 to 19015. [2021-10-28 08:57:51,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19015 states, 19014 states have (on average 1.0843063006205953) internal successors, (20617), 19014 states have internal predecessors, (20617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:51,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19015 states to 19015 states and 20617 transitions. [2021-10-28 08:57:51,059 INFO L78 Accepts]: Start accepts. Automaton has 19015 states and 20617 transitions. Word has length 672 [2021-10-28 08:57:51,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:51,060 INFO L470 AbstractCegarLoop]: Abstraction has 19015 states and 20617 transitions. [2021-10-28 08:57:51,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 78.55555555555556) internal successors, (707), 8 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:51,061 INFO L276 IsEmpty]: Start isEmpty. Operand 19015 states and 20617 transitions. [2021-10-28 08:57:51,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2021-10-28 08:57:51,086 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:51,086 INFO L513 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, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:51,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 08:57:51,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:57:51,301 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:51,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:51,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1016462365, now seen corresponding path program 1 times [2021-10-28 08:57:51,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:51,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988495635] [2021-10-28 08:57:51,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:51,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:51,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 915 proven. 213 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-10-28 08:57:51,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:51,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988495635] [2021-10-28 08:57:51,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988495635] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:57:51,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624120882] [2021-10-28 08:57:51,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:51,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:57:51,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:57:51,648 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:57:51,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 08:57:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:52,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 08:57:52,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:57:55,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 876 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-10-28 08:57:55,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624120882] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:55,084 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:57:55,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-28 08:57:55,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730277280] [2021-10-28 08:57:55,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:55,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:55,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:55,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:57:55,086 INFO L87 Difference]: Start difference. First operand 19015 states and 20617 transitions. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:56,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:56,126 INFO L93 Difference]: Finished difference Result 36015 states and 39129 transitions. [2021-10-28 08:57:56,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:56,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 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 677 [2021-10-28 08:57:56,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:56,147 INFO L225 Difference]: With dead ends: 36015 [2021-10-28 08:57:56,148 INFO L226 Difference]: Without dead ends: 19210 [2021-10-28 08:57:56,155 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:57:56,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19210 states. [2021-10-28 08:57:56,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19210 to 19019. [2021-10-28 08:57:56,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19019 states, 19018 states have (on average 1.0840256599011462) internal successors, (20616), 19018 states have internal predecessors, (20616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:56,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19019 states to 19019 states and 20616 transitions. [2021-10-28 08:57:56,403 INFO L78 Accepts]: Start accepts. Automaton has 19019 states and 20616 transitions. Word has length 677 [2021-10-28 08:57:56,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:57:56,404 INFO L470 AbstractCegarLoop]: Abstraction has 19019 states and 20616 transitions. [2021-10-28 08:57:56,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 19019 states and 20616 transitions. [2021-10-28 08:57:56,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2021-10-28 08:57:56,429 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:57:56,430 INFO L513 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, 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, 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, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:57:56,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:57:56,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-28 08:57:56,656 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:57:56,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:57:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash -896075539, now seen corresponding path program 1 times [2021-10-28 08:57:56,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:57:56,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604307164] [2021-10-28 08:57:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:56,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:57:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1436 backedges. 1039 proven. 64 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-10-28 08:57:57,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:57:57,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604307164] [2021-10-28 08:57:57,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604307164] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:57:57,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460232937] [2021-10-28 08:57:57,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:57:57,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:57:57,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:57:57,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:57:57,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 08:57:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:57:57,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:57:57,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:57:59,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1436 backedges. 1103 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-10-28 08:57:59,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460232937] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:57:59,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:57:59,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-28 08:57:59,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165427014] [2021-10-28 08:57:59,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:57:59,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:57:59,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:57:59,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:57:59,180 INFO L87 Difference]: Start difference. First operand 19019 states and 20616 transitions. Second operand has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:57:59,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:57:59,952 INFO L93 Difference]: Finished difference Result 36574 states and 39682 transitions. [2021-10-28 08:57:59,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:57:59,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 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 687 [2021-10-28 08:57:59,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:57:59,969 INFO L225 Difference]: With dead ends: 36574 [2021-10-28 08:57:59,969 INFO L226 Difference]: Without dead ends: 19765 [2021-10-28 08:57:59,977 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:57:59,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19765 states. [2021-10-28 08:58:00,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19765 to 18467. [2021-10-28 08:58:00,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18467 states, 18466 states have (on average 1.0813928300660673) internal successors, (19969), 18466 states have internal predecessors, (19969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:00,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18467 states to 18467 states and 19969 transitions. [2021-10-28 08:58:00,256 INFO L78 Accepts]: Start accepts. Automaton has 18467 states and 19969 transitions. Word has length 687 [2021-10-28 08:58:00,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:58:00,257 INFO L470 AbstractCegarLoop]: Abstraction has 18467 states and 19969 transitions. [2021-10-28 08:58:00,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:00,257 INFO L276 IsEmpty]: Start isEmpty. Operand 18467 states and 19969 transitions. [2021-10-28 08:58:00,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2021-10-28 08:58:00,280 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:58:00,281 INFO L513 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, 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, 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, 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] [2021-10-28 08:58:00,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:58:00,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-28 08:58:00,482 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:58:00,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:58:00,483 INFO L85 PathProgramCache]: Analyzing trace with hash -758807553, now seen corresponding path program 1 times [2021-10-28 08:58:00,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:58:00,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641631891] [2021-10-28 08:58:00,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:58:00,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:58:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:58:00,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 908 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-10-28 08:58:00,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:58:00,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641631891] [2021-10-28 08:58:00,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641631891] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:58:00,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:58:00,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:58:00,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698176509] [2021-10-28 08:58:00,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:58:00,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:58:00,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:58:00,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:58:00,754 INFO L87 Difference]: Start difference. First operand 18467 states and 19969 transitions. Second operand has 4 states, 4 states have (on average 111.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:01,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:58:01,741 INFO L93 Difference]: Finished difference Result 35464 states and 38365 transitions. [2021-10-28 08:58:01,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:58:01,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 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 693 [2021-10-28 08:58:01,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:58:01,756 INFO L225 Difference]: With dead ends: 35464 [2021-10-28 08:58:01,756 INFO L226 Difference]: Without dead ends: 19023 [2021-10-28 08:58:01,764 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:58:01,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19023 states. [2021-10-28 08:58:01,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19023 to 17179. [2021-10-28 08:58:01,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17179 states, 17178 states have (on average 1.0757364070322506) internal successors, (18479), 17178 states have internal predecessors, (18479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:01,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17179 states to 17179 states and 18479 transitions. [2021-10-28 08:58:01,962 INFO L78 Accepts]: Start accepts. Automaton has 17179 states and 18479 transitions. Word has length 693 [2021-10-28 08:58:01,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:58:01,963 INFO L470 AbstractCegarLoop]: Abstraction has 17179 states and 18479 transitions. [2021-10-28 08:58:01,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:01,963 INFO L276 IsEmpty]: Start isEmpty. Operand 17179 states and 18479 transitions. [2021-10-28 08:58:01,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2021-10-28 08:58:01,975 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:58:01,976 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:58:01,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-28 08:58:01,976 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:58:01,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:58:01,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1829428589, now seen corresponding path program 1 times [2021-10-28 08:58:01,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:58:01,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222579529] [2021-10-28 08:58:01,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:58:01,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:58:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:58:02,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 1192 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2021-10-28 08:58:02,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:58:02,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222579529] [2021-10-28 08:58:02,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222579529] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:58:02,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:58:02,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:58:02,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710219334] [2021-10-28 08:58:02,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:58:02,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:58:02,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:58:02,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:58:02,345 INFO L87 Difference]: Start difference. First operand 17179 states and 18479 transitions. Second operand has 3 states, 3 states have (on average 120.0) 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) [2021-10-28 08:58:03,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:58:03,055 INFO L93 Difference]: Finished difference Result 33260 states and 35832 transitions. [2021-10-28 08:58:03,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:58:03,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) 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 716 [2021-10-28 08:58:03,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:58:03,071 INFO L225 Difference]: With dead ends: 33260 [2021-10-28 08:58:03,072 INFO L226 Difference]: Without dead ends: 18107 [2021-10-28 08:58:03,079 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:58:03,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18107 states. [2021-10-28 08:58:03,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18107 to 16995. [2021-10-28 08:58:03,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16995 states, 16994 states have (on average 1.075320701424032) internal successors, (18274), 16994 states have internal predecessors, (18274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:03,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16995 states to 16995 states and 18274 transitions. [2021-10-28 08:58:03,285 INFO L78 Accepts]: Start accepts. Automaton has 16995 states and 18274 transitions. Word has length 716 [2021-10-28 08:58:03,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:58:03,286 INFO L470 AbstractCegarLoop]: Abstraction has 16995 states and 18274 transitions. [2021-10-28 08:58:03,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) 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) [2021-10-28 08:58:03,286 INFO L276 IsEmpty]: Start isEmpty. Operand 16995 states and 18274 transitions. [2021-10-28 08:58:03,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 751 [2021-10-28 08:58:03,299 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:58:03,300 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:58:03,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-28 08:58:03,300 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:58:03,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:58:03,301 INFO L85 PathProgramCache]: Analyzing trace with hash -207250752, now seen corresponding path program 1 times [2021-10-28 08:58:03,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:58:03,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365899666] [2021-10-28 08:58:03,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:58:03,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:58:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:58:03,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1751 backedges. 1292 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2021-10-28 08:58:03,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:58:03,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365899666] [2021-10-28 08:58:03,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365899666] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:58:03,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:58:03,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:58:03,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469236477] [2021-10-28 08:58:03,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:58:03,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:58:03,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:58:03,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:58:03,595 INFO L87 Difference]: Start difference. First operand 16995 states and 18274 transitions. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:04,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:58:04,314 INFO L93 Difference]: Finished difference Result 32880 states and 35337 transitions. [2021-10-28 08:58:04,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:58:04,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 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 750 [2021-10-28 08:58:04,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:58:04,332 INFO L225 Difference]: With dead ends: 32880 [2021-10-28 08:58:04,332 INFO L226 Difference]: Without dead ends: 16255 [2021-10-28 08:58:04,339 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:58:04,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16255 states. [2021-10-28 08:58:04,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16255 to 15151. [2021-10-28 08:58:04,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15151 states, 15150 states have (on average 1.0676567656765676) internal successors, (16175), 15150 states have internal predecessors, (16175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:04,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15151 states to 15151 states and 16175 transitions. [2021-10-28 08:58:04,512 INFO L78 Accepts]: Start accepts. Automaton has 15151 states and 16175 transitions. Word has length 750 [2021-10-28 08:58:04,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:58:04,512 INFO L470 AbstractCegarLoop]: Abstraction has 15151 states and 16175 transitions. [2021-10-28 08:58:04,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:04,513 INFO L276 IsEmpty]: Start isEmpty. Operand 15151 states and 16175 transitions. [2021-10-28 08:58:04,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2021-10-28 08:58:04,574 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:58:04,575 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:58:04,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-28 08:58:04,575 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:58:04,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:58:04,576 INFO L85 PathProgramCache]: Analyzing trace with hash -897771720, now seen corresponding path program 1 times [2021-10-28 08:58:04,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:58:04,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207324572] [2021-10-28 08:58:04,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:58:04,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:58:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:58:04,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1787 backedges. 1434 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-10-28 08:58:04,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:58:04,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207324572] [2021-10-28 08:58:04,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207324572] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:58:04,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:58:04,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:58:04,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127624184] [2021-10-28 08:58:04,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:58:04,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:58:04,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:58:04,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:58:04,916 INFO L87 Difference]: Start difference. First operand 15151 states and 16175 transitions. Second operand has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:06,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:58:06,164 INFO L93 Difference]: Finished difference Result 34736 states and 37079 transitions. [2021-10-28 08:58:06,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:58:06,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 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 769 [2021-10-28 08:58:06,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:58:06,180 INFO L225 Difference]: With dead ends: 34736 [2021-10-28 08:58:06,180 INFO L226 Difference]: Without dead ends: 21059 [2021-10-28 08:58:06,188 INFO L786 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 [2021-10-28 08:58:06,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21059 states. [2021-10-28 08:58:06,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21059 to 15720. [2021-10-28 08:58:06,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15720 states, 15719 states have (on average 1.0669253769323748) internal successors, (16771), 15719 states have internal predecessors, (16771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:06,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15720 states to 15720 states and 16771 transitions. [2021-10-28 08:58:06,410 INFO L78 Accepts]: Start accepts. Automaton has 15720 states and 16771 transitions. Word has length 769 [2021-10-28 08:58:06,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:58:06,410 INFO L470 AbstractCegarLoop]: Abstraction has 15720 states and 16771 transitions. [2021-10-28 08:58:06,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:06,410 INFO L276 IsEmpty]: Start isEmpty. Operand 15720 states and 16771 transitions. [2021-10-28 08:58:06,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1363 [2021-10-28 08:58:06,428 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:58:06,429 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:58:06,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-28 08:58:06,429 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:58:06,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:58:06,430 INFO L85 PathProgramCache]: Analyzing trace with hash -789498528, now seen corresponding path program 1 times [2021-10-28 08:58:06,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:58:06,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612714172] [2021-10-28 08:58:06,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:58:06,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:58:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:58:06,936 INFO L134 CoverageAnalysis]: Checked inductivity of 5546 backedges. 2005 proven. 0 refuted. 0 times theorem prover too weak. 3541 trivial. 0 not checked. [2021-10-28 08:58:06,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:58:06,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612714172] [2021-10-28 08:58:06,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612714172] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:58:06,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:58:06,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:58:06,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765511498] [2021-10-28 08:58:06,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:58:06,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:58:06,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:58:06,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:58:06,940 INFO L87 Difference]: Start difference. First operand 15720 states and 16771 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 2 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:07,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:58:07,408 INFO L93 Difference]: Finished difference Result 30507 states and 32563 transitions. [2021-10-28 08:58:07,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:58:07,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 2 states have internal predecessors, (344), 0 states have call successors, (0), 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 1362 [2021-10-28 08:58:07,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:58:07,421 INFO L225 Difference]: With dead ends: 30507 [2021-10-28 08:58:07,421 INFO L226 Difference]: Without dead ends: 15341 [2021-10-28 08:58:07,508 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:58:07,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15341 states. [2021-10-28 08:58:07,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15341 to 15336. [2021-10-28 08:58:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15336 states, 15335 states have (on average 1.0664492989892402) internal successors, (16354), 15335 states have internal predecessors, (16354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:07,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15336 states to 15336 states and 16354 transitions. [2021-10-28 08:58:07,689 INFO L78 Accepts]: Start accepts. Automaton has 15336 states and 16354 transitions. Word has length 1362 [2021-10-28 08:58:07,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:58:07,689 INFO L470 AbstractCegarLoop]: Abstraction has 15336 states and 16354 transitions. [2021-10-28 08:58:07,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 2 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:07,690 INFO L276 IsEmpty]: Start isEmpty. Operand 15336 states and 16354 transitions. [2021-10-28 08:58:07,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1403 [2021-10-28 08:58:07,709 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:58:07,709 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:58:07,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-28 08:58:07,710 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:58:07,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:58:07,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1984333218, now seen corresponding path program 1 times [2021-10-28 08:58:07,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:58:07,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261878674] [2021-10-28 08:58:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:58:07,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:58:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:58:08,533 INFO L134 CoverageAnalysis]: Checked inductivity of 5593 backedges. 3268 proven. 277 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2021-10-28 08:58:08,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:58:08,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261878674] [2021-10-28 08:58:08,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261878674] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:58:08,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510152100] [2021-10-28 08:58:08,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:58:08,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:58:08,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:58:08,537 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:58:08,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 08:58:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:58:09,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 1752 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 08:58:09,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:58:17,995 INFO L134 CoverageAnalysis]: Checked inductivity of 5593 backedges. 3655 proven. 353 refuted. 0 times theorem prover too weak. 1585 trivial. 0 not checked. [2021-10-28 08:58:17,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510152100] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:58:17,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:58:17,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 9 [2021-10-28 08:58:17,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096855846] [2021-10-28 08:58:17,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:58:17,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:58:17,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:58:17,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:58:17,999 INFO L87 Difference]: Start difference. First operand 15336 states and 16354 transitions. Second operand has 10 states, 10 states have (on average 68.3) internal successors, (683), 9 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:21,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:58:21,235 INFO L93 Difference]: Finished difference Result 31685 states and 33732 transitions. [2021-10-28 08:58:21,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 08:58:21,235 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 68.3) internal successors, (683), 9 states have internal predecessors, (683), 0 states have call successors, (0), 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 1402 [2021-10-28 08:58:21,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:58:21,247 INFO L225 Difference]: With dead ends: 31685 [2021-10-28 08:58:21,247 INFO L226 Difference]: Without dead ends: 16719 [2021-10-28 08:58:21,252 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 1397 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2021-10-28 08:58:21,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16719 states. [2021-10-28 08:58:21,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16719 to 15517. [2021-10-28 08:58:21,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15517 states, 15516 states have (on average 1.0634828564062904) internal successors, (16501), 15516 states have internal predecessors, (16501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:21,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15517 states to 15517 states and 16501 transitions. [2021-10-28 08:58:21,448 INFO L78 Accepts]: Start accepts. Automaton has 15517 states and 16501 transitions. Word has length 1402 [2021-10-28 08:58:21,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:58:21,449 INFO L470 AbstractCegarLoop]: Abstraction has 15517 states and 16501 transitions. [2021-10-28 08:58:21,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.3) internal successors, (683), 9 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:21,450 INFO L276 IsEmpty]: Start isEmpty. Operand 15517 states and 16501 transitions. [2021-10-28 08:58:21,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1516 [2021-10-28 08:58:21,475 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:58:21,477 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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] [2021-10-28 08:58:21,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:58:21,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:58:21,678 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:58:21,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:58:21,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1962863499, now seen corresponding path program 1 times [2021-10-28 08:58:21,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:58:21,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834451666] [2021-10-28 08:58:21,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:58:21,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:58:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:58:22,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6691 backedges. 4012 proven. 1173 refuted. 0 times theorem prover too weak. 1506 trivial. 0 not checked. [2021-10-28 08:58:22,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:58:22,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834451666] [2021-10-28 08:58:22,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834451666] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:58:22,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562087722] [2021-10-28 08:58:22,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:58:22,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:58:22,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:58:22,422 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:58:22,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 08:58:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:58:24,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 08:58:24,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:58:27,643 INFO L134 CoverageAnalysis]: Checked inductivity of 6691 backedges. 4200 proven. 0 refuted. 0 times theorem prover too weak. 2491 trivial. 0 not checked. [2021-10-28 08:58:27,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562087722] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:58:27,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:58:27,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2021-10-28 08:58:27,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378900514] [2021-10-28 08:58:27,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:58:27,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:58:27,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:58:27,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:58:27,647 INFO L87 Difference]: Start difference. First operand 15517 states and 16501 transitions. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:28,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:58:28,407 INFO L93 Difference]: Finished difference Result 23272 states and 24673 transitions. [2021-10-28 08:58:28,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:58:28,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 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 1515 [2021-10-28 08:58:28,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:58:28,408 INFO L225 Difference]: With dead ends: 23272 [2021-10-28 08:58:28,408 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:58:28,413 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1521 GetRequests, 1516 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:58:28,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:58:28,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:58:28,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:28,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:58:28,414 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1515 [2021-10-28 08:58:28,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:58:28,414 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:58:28,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:58:28,414 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:58:28,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:58:28,416 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:58:28,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-10-28 08:58:28,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:58:28,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 08:58:28,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:58:31,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:58:34,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:58:42,647 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-28 08:58:42,647 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,647 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-28 08:58:42,648 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,648 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,648 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,648 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,648 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,648 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,649 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-28 08:58:42,649 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-28 08:58:42,649 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-28 08:58:42,649 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,649 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,649 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,650 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,650 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,650 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,650 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,650 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,651 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,651 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,651 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-28 08:58:42,651 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-28 08:58:42,651 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-28 08:58:42,651 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,652 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-28 08:58:42,652 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-28 08:58:42,652 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,652 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,652 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,652 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,653 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,653 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,653 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-28 08:58:42,653 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-28 08:58:42,653 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-28 08:58:42,653 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,654 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,654 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,654 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse24 (<= ~a23~0 138)) (.cse4 (= ~a4~0 1))) (let ((.cse2 (<= ~a25~0 10)) (.cse17 (<= ~a29~0 245)) (.cse18 (< 306 ~a23~0)) (.cse7 (<= 130 ~a29~0)) (.cse10 (<= 141 ~a29~0)) (.cse22 (<= 312 ~a23~0)) (.cse21 (< 140 ~a29~0)) (.cse9 (<= ~a29~0 240)) (.cse20 (= ~a25~0 12)) (.cse1 (<= ~a29~0 277)) (.cse6 (<= 246 ~a29~0)) (.cse8 (= ~a25~0 13)) (.cse11 (<= 260 ~a29~0)) (.cse0 (<= ~a23~0 600000)) (.cse15 (and .cse24 .cse4)) (.cse25 (<= ~a23~0 312)) (.cse14 (<= ~a25~0 9)) (.cse3 (= ~a3~0 1)) (.cse19 (<= (+ ~a23~0 55) 0)) (.cse26 (= ~a25~0 10)) (.cse12 (<= (+ ~a23~0 43) 0)) (.cse13 (= ~a4~0 0)) (.cse23 (= ~a25~0 11)) (.cse16 (<= ~a29~0 130)) (.cse5 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse0 .cse9 .cse10 .cse3 .cse4 .cse5) (and (or (and .cse11 .cse12 .cse13 .cse14) (and .cse8 .cse12 .cse1 .cse13 .cse6)) .cse3 .cse5) (and (or .cse15 (and .cse12 .cse13 .cse14 .cse16)) .cse17 .cse3 .cse5) (and .cse8 .cse0 .cse3 .cse18 .cse4 .cse5) (and .cse0 .cse11 .cse3 .cse4 .cse14 .cse5) (and .cse19 .cse20 .cse21 .cse1 .cse13 .cse3 .cse5) (and .cse1 .cse2 .cse17 .cse10 .cse3 .cse4 .cse22 .cse5 .cse7) (and .cse0 .cse23 .cse3 .cse18 .cse4 .cse5 .cse6) (and .cse20 .cse1 .cse13 .cse3 .cse5 .cse6) (and .cse23 .cse24 .cse4 .cse7) (and .cse19 .cse20 (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse13 .cse3 .cse5 .cse16) (and .cse0 .cse10 (or (and .cse20 .cse4 (<= ~a29~0 232)) (and .cse23 (<= ~a29~0 220) .cse4 .cse22)) .cse3 .cse5) (and .cse0 .cse20 .cse1 .cse3 .cse4 .cse5 .cse6) (and .cse21 .cse9 .cse3 .cse4 .cse14 .cse5) (and .cse20 .cse3 .cse4 .cse25 .cse5) (and .cse8 .cse3 .cse4 .cse25 .cse5 .cse16) (and .cse0 .cse1 .cse23 .cse3 .cse4 .cse5 .cse6) (and .cse8 .cse11 .cse3 .cse4 .cse25 .cse5) (and .cse24 .cse4 .cse26) (and .cse0 .cse3 .cse4 .cse5 .cse26) (and (or .cse15 (and .cse4 .cse25 .cse16)) .cse14) (and .cse3 (or (and .cse19 .cse13 .cse26 .cse16) (and .cse12 .cse13 .cse23 .cse16)) .cse5)))) [2021-10-28 08:58:42,654 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,655 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-28 08:58:42,655 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-28 08:58:42,655 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,655 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,655 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,655 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,656 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,656 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,656 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-28 08:58:42,656 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-28 08:58:42,656 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-28 08:58:42,657 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-28 08:58:42,657 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,657 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,657 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,657 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,657 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,658 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,658 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,658 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-28 08:58:42,658 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-28 08:58:42,658 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-28 08:58:42,658 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,659 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,659 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,659 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,659 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,659 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,659 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,660 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,660 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,660 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-28 08:58:42,660 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-28 08:58:42,660 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-28 08:58:42,660 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,661 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse24 (<= ~a23~0 138)) (.cse4 (= ~a4~0 1))) (let ((.cse2 (<= ~a25~0 10)) (.cse17 (<= ~a29~0 245)) (.cse18 (< 306 ~a23~0)) (.cse7 (<= 130 ~a29~0)) (.cse10 (<= 141 ~a29~0)) (.cse22 (<= 312 ~a23~0)) (.cse21 (< 140 ~a29~0)) (.cse9 (<= ~a29~0 240)) (.cse20 (= ~a25~0 12)) (.cse1 (<= ~a29~0 277)) (.cse6 (<= 246 ~a29~0)) (.cse8 (= ~a25~0 13)) (.cse11 (<= 260 ~a29~0)) (.cse0 (<= ~a23~0 600000)) (.cse15 (and .cse24 .cse4)) (.cse25 (<= ~a23~0 312)) (.cse14 (<= ~a25~0 9)) (.cse3 (= ~a3~0 1)) (.cse19 (<= (+ ~a23~0 55) 0)) (.cse26 (= ~a25~0 10)) (.cse12 (<= (+ ~a23~0 43) 0)) (.cse13 (= ~a4~0 0)) (.cse23 (= ~a25~0 11)) (.cse16 (<= ~a29~0 130)) (.cse5 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse0 .cse9 .cse10 .cse3 .cse4 .cse5) (and (or (and .cse11 .cse12 .cse13 .cse14) (and .cse8 .cse12 .cse1 .cse13 .cse6)) .cse3 .cse5) (and (or .cse15 (and .cse12 .cse13 .cse14 .cse16)) .cse17 .cse3 .cse5) (and .cse8 .cse0 .cse3 .cse18 .cse4 .cse5) (and .cse0 .cse11 .cse3 .cse4 .cse14 .cse5) (and .cse19 .cse20 .cse21 .cse1 .cse13 .cse3 .cse5) (and .cse1 .cse2 .cse17 .cse10 .cse3 .cse4 .cse22 .cse5 .cse7) (and .cse0 .cse23 .cse3 .cse18 .cse4 .cse5 .cse6) (and .cse20 .cse1 .cse13 .cse3 .cse5 .cse6) (and .cse23 .cse24 .cse4 .cse7) (and .cse19 .cse20 (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse13 .cse3 .cse5 .cse16) (and .cse0 .cse10 (or (and .cse20 .cse4 (<= ~a29~0 232)) (and .cse23 (<= ~a29~0 220) .cse4 .cse22)) .cse3 .cse5) (and .cse0 .cse20 .cse1 .cse3 .cse4 .cse5 .cse6) (and .cse21 .cse9 .cse3 .cse4 .cse14 .cse5) (and .cse20 .cse3 .cse4 .cse25 .cse5) (and .cse8 .cse3 .cse4 .cse25 .cse5 .cse16) (and .cse0 .cse1 .cse23 .cse3 .cse4 .cse5 .cse6) (and .cse8 .cse11 .cse3 .cse4 .cse25 .cse5) (and .cse24 .cse4 .cse26) (and .cse0 .cse3 .cse4 .cse5 .cse26) (and (or .cse15 (and .cse4 .cse25 .cse16)) .cse14) (and .cse3 (or (and .cse19 .cse13 .cse26 .cse16) (and .cse12 .cse13 .cse23 .cse16)) .cse5)))) [2021-10-28 08:58:42,661 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,661 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,661 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,662 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,662 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,662 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,662 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,662 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,662 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-28 08:58:42,663 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-28 08:58:42,663 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-28 08:58:42,663 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-28 08:58:42,663 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-28 08:58:42,663 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-28 08:58:42,663 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-28 08:58:42,664 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,664 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,664 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,664 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,664 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,664 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,664 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,664 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,664 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,664 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,664 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 08:58:42,664 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,665 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-28 08:58:42,666 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,667 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,667 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-28 08:58:42,667 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-28 08:58:42,667 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-28 08:58:42,667 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 08:58:42,667 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2021-10-28 08:58:42,667 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,667 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,667 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,667 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,667 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,667 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-28 08:58:42,668 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,669 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-28 08:58:42,670 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-28 08:58:42,671 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-28 08:58:42,672 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-28 08:58:42,673 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-28 08:58:42,674 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-28 08:58:42,675 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-28 08:58:42,675 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,675 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,675 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,675 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,675 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,675 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,675 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,675 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,675 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-28 08:58:42,675 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-28 08:58:42,676 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-28 08:58:42,676 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-28 08:58:42,676 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-28 08:58:42,676 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-28 08:58:42,676 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,676 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,677 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,677 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,677 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,677 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,677 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,677 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-28 08:58:42,678 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-28 08:58:42,678 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 08:58:42,678 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,678 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,678 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,678 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,679 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,679 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,679 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-28 08:58:42,679 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-28 08:58:42,679 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,679 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,680 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,680 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,680 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,680 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,680 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,680 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-28 08:58:42,680 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-28 08:58:42,680 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,681 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,681 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-28 08:58:42,681 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-28 08:58:42,681 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-28 08:58:42,681 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-28 08:58:42,684 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:58:42,686 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:58:42,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:58:42 BoogieIcfgContainer [2021-10-28 08:58:42,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:58:42,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:58:42,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:58:42,749 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:58:42,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:57:09" (3/4) ... [2021-10-28 08:58:42,753 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:58:42,805 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 08:58:42,809 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 08:58:42,811 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:58:42,813 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:58:42,989 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:58:42,990 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:58:42,991 INFO L168 Benchmark]: Toolchain (without parser) took 96539.16 ms. Allocated memory was 134.2 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 96.1 MB in the beginning and 616.8 MB in the end (delta: -520.7 MB). Peak memory consumption was 698.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:58:42,992 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 83.9 MB. Free memory is still 40.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:58:42,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 889.09 ms. Allocated memory is still 134.2 MB. Free memory was 96.1 MB in the beginning and 74.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:58:42,993 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.77 ms. Allocated memory is still 134.2 MB. Free memory was 74.5 MB in the beginning and 57.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:58:42,993 INFO L168 Benchmark]: Boogie Preprocessor took 134.09 ms. Allocated memory is still 134.2 MB. Free memory was 57.7 MB in the beginning and 48.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:58:42,993 INFO L168 Benchmark]: RCFGBuilder took 1999.09 ms. Allocated memory was 134.2 MB in the beginning and 167.8 MB in the end (delta: 33.6 MB). Free memory was 48.4 MB in the beginning and 115.4 MB in the end (delta: -67.1 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:58:42,994 INFO L168 Benchmark]: TraceAbstraction took 93102.70 ms. Allocated memory was 167.8 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 115.4 MB in the beginning and 643.0 MB in the end (delta: -527.6 MB). Peak memory consumption was 936.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:58:42,994 INFO L168 Benchmark]: Witness Printer took 245.10 ms. Allocated memory is still 1.4 GB. Free memory was 643.0 MB in the beginning and 616.8 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:58:42,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 83.9 MB. Free memory is still 40.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 889.09 ms. Allocated memory is still 134.2 MB. Free memory was 96.1 MB in the beginning and 74.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 158.77 ms. Allocated memory is still 134.2 MB. Free memory was 74.5 MB in the beginning and 57.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 134.09 ms. Allocated memory is still 134.2 MB. Free memory was 57.7 MB in the beginning and 48.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1999.09 ms. Allocated memory was 134.2 MB in the beginning and 167.8 MB in the end (delta: 33.6 MB). Free memory was 48.4 MB in the beginning and 115.4 MB in the end (delta: -67.1 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 93102.70 ms. Allocated memory was 167.8 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 115.4 MB in the beginning and 643.0 MB in the end (delta: -527.6 MB). Peak memory consumption was 936.9 MB. Max. memory is 16.1 GB. * Witness Printer took 245.10 ms. Allocated memory is still 1.4 GB. Free memory was 643.0 MB in the beginning and 616.8 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 139]: 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: 92.9s, OverallIterations: 31, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 37.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 14.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5498 SDtfs, 6909 SDslu, 956 SDs, 0 SdLazy, 25959 SolverSat, 3647 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5084 GetRequests, 4991 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20677occurred in iteration=20, InterpolantAutomatonStates: 138, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.9s AutomataMinimizationTime, 31 MinimizatonAttempts, 37306 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 117 NumberOfFragments, 1063 HoareAnnotationTreeSize, 3 FomulaSimplifications, 69600531 FormulaSimplificationTreeSizeReduction, 5.6s HoareSimplificationTime, 3 FomulaSimplificationsInter, 17446860 FormulaSimplificationTreeSizeReductionInter, 8.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 25.7s InterpolantComputationTime, 21715 NumberOfCodeBlocks, 21715 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 21679 ConstructedInterpolants, 0 QuantifiedInterpolants, 63663 SizeOfPredicates, 9 NumberOfNonLiveVariables, 6309 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 36 InterpolantComputations, 29 PerfectInterpolantSequences, 52825/55034 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: ((((((((((((((((((((((((((((a23 <= 600000 && a29 <= 277) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29) && 130 <= a29) || ((((((a25 == 13 && a23 <= 600000) && a29 <= 240) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((260 <= a29 && a23 + 43 <= 0) && a4 == 0) && a25 <= 9) || ((((a25 == 13 && a23 + 43 <= 0) && a29 <= 277) && a4 == 0) && 246 <= a29)) && a3 == 1) && a8 == 15)) || (((((a23 <= 138 && a4 == 1) || (((a23 + 43 <= 0 && a4 == 0) && a25 <= 9) && a29 <= 130)) && a29 <= 245) && a3 == 1) && a8 == 15)) || (((((a25 == 13 && a23 <= 600000) && a3 == 1) && 306 < a23) && a4 == 1) && a8 == 15)) || (((((a23 <= 600000 && 260 <= a29) && a3 == 1) && a4 == 1) && a25 <= 9) && a8 == 15)) || ((((((a23 + 55 <= 0 && a25 == 12) && 140 < a29) && a29 <= 277) && a4 == 0) && a3 == 1) && a8 == 15)) || ((((((((a29 <= 277 && a25 <= 10) && a29 <= 245) && 141 <= a29) && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15) && 130 <= a29)) || ((((((a23 <= 600000 && a25 == 11) && a3 == 1) && 306 < a23) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((((a25 == 12 && a29 <= 277) && a4 == 0) && a3 == 1) && a8 == 15) && 246 <= a29)) || (((a25 == 11 && a23 <= 138) && a4 == 1) && 130 <= a29)) || ((((((a23 + 55 <= 0 && a25 == 12) && !(6 == input)) && a4 == 0) && a3 == 1) && a8 == 15) && a29 <= 130)) || ((((a23 <= 600000 && 141 <= a29) && (((a25 == 12 && a4 == 1) && a29 <= 232) || (((a25 == 11 && a29 <= 220) && a4 == 1) && 312 <= a23))) && a3 == 1) && a8 == 15)) || ((((((a23 <= 600000 && a25 == 12) && a29 <= 277) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((((140 < a29 && a29 <= 240) && a3 == 1) && a4 == 1) && a25 <= 9) && a8 == 15)) || ((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a25 == 13 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && a29 <= 130)) || ((((((a23 <= 600000 && a29 <= 277) && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((((a25 == 13 && 260 <= a29) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || ((a23 <= 138 && a4 == 1) && a25 == 10)) || ((((a23 <= 600000 && a3 == 1) && a4 == 1) && a8 == 15) && a25 == 10)) || (((a23 <= 138 && a4 == 1) || ((a4 == 1 && a23 <= 312) && a29 <= 130)) && a25 <= 9)) || ((a3 == 1 && ((((a23 + 55 <= 0 && a4 == 0) && a25 == 10) && a29 <= 130) || (((a23 + 43 <= 0 && a4 == 0) && a25 == 11) && a29 <= 130))) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((a23 <= 600000 && a29 <= 277) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29) && 130 <= a29) || ((((((a25 == 13 && a23 <= 600000) && a29 <= 240) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((260 <= a29 && a23 + 43 <= 0) && a4 == 0) && a25 <= 9) || ((((a25 == 13 && a23 + 43 <= 0) && a29 <= 277) && a4 == 0) && 246 <= a29)) && a3 == 1) && a8 == 15)) || (((((a23 <= 138 && a4 == 1) || (((a23 + 43 <= 0 && a4 == 0) && a25 <= 9) && a29 <= 130)) && a29 <= 245) && a3 == 1) && a8 == 15)) || (((((a25 == 13 && a23 <= 600000) && a3 == 1) && 306 < a23) && a4 == 1) && a8 == 15)) || (((((a23 <= 600000 && 260 <= a29) && a3 == 1) && a4 == 1) && a25 <= 9) && a8 == 15)) || ((((((a23 + 55 <= 0 && a25 == 12) && 140 < a29) && a29 <= 277) && a4 == 0) && a3 == 1) && a8 == 15)) || ((((((((a29 <= 277 && a25 <= 10) && a29 <= 245) && 141 <= a29) && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15) && 130 <= a29)) || ((((((a23 <= 600000 && a25 == 11) && a3 == 1) && 306 < a23) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((((a25 == 12 && a29 <= 277) && a4 == 0) && a3 == 1) && a8 == 15) && 246 <= a29)) || (((a25 == 11 && a23 <= 138) && a4 == 1) && 130 <= a29)) || ((((((a23 + 55 <= 0 && a25 == 12) && !(6 == input)) && a4 == 0) && a3 == 1) && a8 == 15) && a29 <= 130)) || ((((a23 <= 600000 && 141 <= a29) && (((a25 == 12 && a4 == 1) && a29 <= 232) || (((a25 == 11 && a29 <= 220) && a4 == 1) && 312 <= a23))) && a3 == 1) && a8 == 15)) || ((((((a23 <= 600000 && a25 == 12) && a29 <= 277) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((((140 < a29 && a29 <= 240) && a3 == 1) && a4 == 1) && a25 <= 9) && a8 == 15)) || ((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a25 == 13 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && a29 <= 130)) || ((((((a23 <= 600000 && a29 <= 277) && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((((a25 == 13 && 260 <= a29) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || ((a23 <= 138 && a4 == 1) && a25 == 10)) || ((((a23 <= 600000 && a3 == 1) && a4 == 1) && a8 == 15) && a25 == 10)) || (((a23 <= 138 && a4 == 1) || ((a4 == 1 && a23 <= 312) && a29 <= 130)) && a25 <= 9)) || ((a3 == 1 && ((((a23 + 55 <= 0 && a4 == 0) && a25 == 10) && a29 <= 130) || (((a23 + 43 <= 0 && a4 == 0) && a25 == 11) && a29 <= 130))) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 08:58:43,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42ec0b9-cff7-44a0-8f1c-f32cd7fe7787/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...