./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G --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 ab50d4c44616d850baf388e04d7eb1063c3cea27d21c9cbb628b158ef2bdff42 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:27:18,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:27:18,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:27:18,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:27:18,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:27:18,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:27:18,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:27:18,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:27:18,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:27:18,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:27:18,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:27:18,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:27:18,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:27:18,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:27:18,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:27:18,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:27:18,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:27:18,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:27:18,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:27:18,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:27:18,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:27:18,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:27:18,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:27:18,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:27:18,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:27:18,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:27:18,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:27:18,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:27:18,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:27:18,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:27:18,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:27:18,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:27:18,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:27:18,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:27:18,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:27:18,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:27:18,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:27:18,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:27:18,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:27:18,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:27:18,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:27:18,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:27:18,210 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:27:18,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:27:18,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:27:18,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:27:18,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:27:18,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:27:18,213 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:27:18,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:27:18,214 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:27:18,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:27:18,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:27:18,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:27:18,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:27:18,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:27:18,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:27:18,216 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:27:18,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:27:18,216 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:27:18,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:27:18,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:27:18,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:27:18,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:27:18,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:27:18,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:27:18,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:27:18,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:27:18,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:27:18,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:27:18,219 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:27:18,220 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:27:18,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:27:18,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:27:18,221 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_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab50d4c44616d850baf388e04d7eb1063c3cea27d21c9cbb628b158ef2bdff42 [2021-11-23 13:27:18,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:27:18,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:27:18,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:27:18,511 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:27:18,511 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:27:18,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c [2021-11-23 13:27:18,601 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/data/a5718749c/63d9a926d9964823a20ecf76b351ac4e/FLAG4ade4515c [2021-11-23 13:27:19,218 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:27:19,219 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c [2021-11-23 13:27:19,237 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/data/a5718749c/63d9a926d9964823a20ecf76b351ac4e/FLAG4ade4515c [2021-11-23 13:27:19,537 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/data/a5718749c/63d9a926d9964823a20ecf76b351ac4e [2021-11-23 13:27:19,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:27:19,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:27:19,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:27:19,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:27:19,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:27:19,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:27:19" (1/1) ... [2021-11-23 13:27:19,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4105447f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19, skipping insertion in model container [2021-11-23 13:27:19,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:27:19" (1/1) ... [2021-11-23 13:27:19,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:27:19,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:27:19,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c[490,503] [2021-11-23 13:27:19,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:27:19,852 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:27:19,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c[490,503] [2021-11-23 13:27:19,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:27:19,889 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:27:19,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19 WrapperNode [2021-11-23 13:27:19,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:27:19,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:27:19,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:27:19,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:27:19,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19" (1/1) ... [2021-11-23 13:27:19,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19" (1/1) ... [2021-11-23 13:27:19,933 INFO L137 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 125 [2021-11-23 13:27:19,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:27:19,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:27:19,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:27:19,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:27:19,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19" (1/1) ... [2021-11-23 13:27:19,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19" (1/1) ... [2021-11-23 13:27:19,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19" (1/1) ... [2021-11-23 13:27:19,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19" (1/1) ... [2021-11-23 13:27:19,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19" (1/1) ... [2021-11-23 13:27:19,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19" (1/1) ... [2021-11-23 13:27:19,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19" (1/1) ... [2021-11-23 13:27:19,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:27:19,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:27:19,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:27:19,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:27:19,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19" (1/1) ... [2021-11-23 13:27:19,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:27:19,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:20,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:27:20,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:27:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:27:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:27:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:27:20,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:27:20,138 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:27:20,140 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:27:20,391 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:27:20,406 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:27:20,406 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 13:27:20,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:27:20 BoogieIcfgContainer [2021-11-23 13:27:20,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:27:20,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:27:20,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:27:20,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:27:20,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:27:19" (1/3) ... [2021-11-23 13:27:20,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442c0224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:27:20, skipping insertion in model container [2021-11-23 13:27:20,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:19" (2/3) ... [2021-11-23 13:27:20,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442c0224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:27:20, skipping insertion in model container [2021-11-23 13:27:20,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:27:20" (3/3) ... [2021-11-23 13:27:20,430 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound5.c [2021-11-23 13:27:20,436 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:27:20,436 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-23 13:27:20,492 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:27:20,500 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 13:27:20,500 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 13:27:20,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 40 states have (on average 1.6) internal successors, (64), 46 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:20,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 13:27:20,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:20,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:20,526 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:20,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:20,534 INFO L85 PathProgramCache]: Analyzing trace with hash -261215226, now seen corresponding path program 1 times [2021-11-23 13:27:20,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:20,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847574473] [2021-11-23 13:27:20,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:20,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:20,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:20,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:20,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847574473] [2021-11-23 13:27:20,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847574473] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:20,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:20,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:27:20,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585629236] [2021-11-23 13:27:20,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:20,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:27:20,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:20,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:27:20,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:27:20,756 INFO L87 Difference]: Start difference. First operand has 47 states, 40 states have (on average 1.6) internal successors, (64), 46 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:20,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:20,776 INFO L93 Difference]: Finished difference Result 91 states and 124 transitions. [2021-11-23 13:27:20,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:27:20,778 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-11-23 13:27:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:20,786 INFO L225 Difference]: With dead ends: 91 [2021-11-23 13:27:20,786 INFO L226 Difference]: Without dead ends: 43 [2021-11-23 13:27:20,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:27:20,793 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:20,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:27:20,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-23 13:27:20,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-23 13:27:20,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 42 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-11-23 13:27:20,830 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 18 [2021-11-23 13:27:20,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:20,830 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-11-23 13:27:20,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:20,831 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-11-23 13:27:20,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 13:27:20,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:20,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:20,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:27:20,833 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:20,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:20,834 INFO L85 PathProgramCache]: Analyzing trace with hash 193193740, now seen corresponding path program 1 times [2021-11-23 13:27:20,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:20,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174604644] [2021-11-23 13:27:20,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:20,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:20,857 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:27:20,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [645144793] [2021-11-23 13:27:20,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:20,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:20,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:20,861 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:27:20,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:27:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:20,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 13:27:20,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:27:21,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:21,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:27:21,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:21,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174604644] [2021-11-23 13:27:21,098 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:27:21,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645144793] [2021-11-23 13:27:21,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645144793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:21,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:21,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 13:27:21,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846904739] [2021-11-23 13:27:21,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:21,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:27:21,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:21,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:27:21,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:27:21,102 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:21,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:21,239 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2021-11-23 13:27:21,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:27:21,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-11-23 13:27:21,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:21,242 INFO L225 Difference]: With dead ends: 72 [2021-11-23 13:27:21,243 INFO L226 Difference]: Without dead ends: 64 [2021-11-23 13:27:21,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:27:21,246 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 76 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:21,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 85 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:27:21,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-23 13:27:21,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 45. [2021-11-23 13:27:21,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 44 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:21,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-11-23 13:27:21,267 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 19 [2021-11-23 13:27:21,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:21,268 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-11-23 13:27:21,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:21,269 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-11-23 13:27:21,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 13:27:21,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:21,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:21,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:27:21,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-23 13:27:21,472 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:21,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:21,473 INFO L85 PathProgramCache]: Analyzing trace with hash 193196721, now seen corresponding path program 1 times [2021-11-23 13:27:21,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:21,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8911435] [2021-11-23 13:27:21,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:21,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:21,490 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:27:21,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [479221910] [2021-11-23 13:27:21,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:21,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:21,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:21,492 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:27:21,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:27:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:21,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 13:27:21,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:27:21,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:21,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:27:21,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:21,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8911435] [2021-11-23 13:27:21,715 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:27:21,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479221910] [2021-11-23 13:27:21,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479221910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:21,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:21,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:27:21,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018196816] [2021-11-23 13:27:21,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:21,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:27:21,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:21,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:27:21,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:27:21,719 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:21,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:21,772 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2021-11-23 13:27:21,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:27:21,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-11-23 13:27:21,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:21,774 INFO L225 Difference]: With dead ends: 64 [2021-11-23 13:27:21,774 INFO L226 Difference]: Without dead ends: 62 [2021-11-23 13:27:21,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:27:21,776 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 16 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:21,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 97 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:27:21,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-23 13:27:21,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 47. [2021-11-23 13:27:21,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 41 states have (on average 1.170731707317073) internal successors, (48), 46 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:21,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2021-11-23 13:27:21,785 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 19 [2021-11-23 13:27:21,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:21,786 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2021-11-23 13:27:21,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:21,786 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2021-11-23 13:27:21,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 13:27:21,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:21,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:21,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:27:22,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:22,008 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:22,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:22,009 INFO L85 PathProgramCache]: Analyzing trace with hash 978612468, now seen corresponding path program 1 times [2021-11-23 13:27:22,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:22,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020240967] [2021-11-23 13:27:22,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:22,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:22,028 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:27:22,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451764094] [2021-11-23 13:27:22,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:22,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:22,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:22,034 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:27:22,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 13:27:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:22,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 13:27:22,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:27:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:22,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:27:22,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:22,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020240967] [2021-11-23 13:27:22,546 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:27:22,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451764094] [2021-11-23 13:27:22,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451764094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:22,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:22,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 13:27:22,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104890846] [2021-11-23 13:27:22,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:22,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 13:27:22,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:22,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 13:27:22,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:27:22,552 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:22,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:22,734 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2021-11-23 13:27:22,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 13:27:22,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2021-11-23 13:27:22,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:22,740 INFO L225 Difference]: With dead ends: 68 [2021-11-23 13:27:22,740 INFO L226 Difference]: Without dead ends: 66 [2021-11-23 13:27:22,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:27:22,746 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 69 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:22,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 126 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:27:22,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-23 13:27:22,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2021-11-23 13:27:22,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 58 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2021-11-23 13:27:22,762 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 21 [2021-11-23 13:27:22,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:22,762 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2021-11-23 13:27:22,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:22,763 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2021-11-23 13:27:22,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 13:27:22,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:22,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:22,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:27:22,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:22,992 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:22,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:22,993 INFO L85 PathProgramCache]: Analyzing trace with hash -151098409, now seen corresponding path program 1 times [2021-11-23 13:27:22,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:22,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800443113] [2021-11-23 13:27:22,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:22,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:23,010 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:27:23,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [211341568] [2021-11-23 13:27:23,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:23,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:23,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:23,030 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:27:23,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 13:27:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:23,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 13:27:23,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:27:23,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:23,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:27:23,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:23,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800443113] [2021-11-23 13:27:23,427 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:27:23,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211341568] [2021-11-23 13:27:23,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211341568] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:23,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:23,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 13:27:23,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856277694] [2021-11-23 13:27:23,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:23,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:27:23,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:23,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:27:23,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:27:23,431 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:23,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:23,619 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2021-11-23 13:27:23,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 13:27:23,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-11-23 13:27:23,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:23,623 INFO L225 Difference]: With dead ends: 66 [2021-11-23 13:27:23,623 INFO L226 Difference]: Without dead ends: 64 [2021-11-23 13:27:23,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-11-23 13:27:23,624 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 119 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:23,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 112 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:27:23,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-23 13:27:23,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 59. [2021-11-23 13:27:23,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 58 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:23,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2021-11-23 13:27:23,652 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 23 [2021-11-23 13:27:23,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:23,652 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2021-11-23 13:27:23,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:23,653 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2021-11-23 13:27:23,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 13:27:23,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:23,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:23,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:27:23,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:23,868 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:23,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:23,869 INFO L85 PathProgramCache]: Analyzing trace with hash 823475034, now seen corresponding path program 1 times [2021-11-23 13:27:23,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:23,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662116671] [2021-11-23 13:27:23,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:23,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:23,881 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:27:23,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [511243269] [2021-11-23 13:27:23,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:23,882 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:23,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:23,883 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:27:23,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 13:27:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:23,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 13:27:23,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:27:24,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:24,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:27:24,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:24,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662116671] [2021-11-23 13:27:24,213 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:27:24,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511243269] [2021-11-23 13:27:24,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511243269] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:24,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:24,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 13:27:24,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827903850] [2021-11-23 13:27:24,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:24,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:27:24,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:24,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:27:24,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:27:24,217 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:24,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:24,306 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2021-11-23 13:27:24,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:27:24,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-23 13:27:24,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:24,310 INFO L225 Difference]: With dead ends: 68 [2021-11-23 13:27:24,310 INFO L226 Difference]: Without dead ends: 66 [2021-11-23 13:27:24,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:27:24,311 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 16 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:24,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 86 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:27:24,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-23 13:27:24,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2021-11-23 13:27:24,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 53 states have (on average 1.169811320754717) internal successors, (62), 58 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2021-11-23 13:27:24,330 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 25 [2021-11-23 13:27:24,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:24,331 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2021-11-23 13:27:24,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:24,331 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2021-11-23 13:27:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 13:27:24,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:24,332 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:24,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:27:24,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:24,555 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:24,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:24,555 INFO L85 PathProgramCache]: Analyzing trace with hash -335116852, now seen corresponding path program 1 times [2021-11-23 13:27:24,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:24,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510071569] [2021-11-23 13:27:24,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:24,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:24,565 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:27:24,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147180741] [2021-11-23 13:27:24,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:24,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:24,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:24,568 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:27:24,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 13:27:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:24,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 13:27:24,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:27:24,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:24,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:27:24,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:24,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:24,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510071569] [2021-11-23 13:27:24,852 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:27:24,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147180741] [2021-11-23 13:27:24,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147180741] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:27:24,852 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:27:24,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-23 13:27:24,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198154184] [2021-11-23 13:27:24,853 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:27:24,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:27:24,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:24,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:27:24,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:27:24,855 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:24,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:24,990 INFO L93 Difference]: Finished difference Result 109 states and 118 transitions. [2021-11-23 13:27:24,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 13:27:24,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-23 13:27:24,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:24,992 INFO L225 Difference]: With dead ends: 109 [2021-11-23 13:27:24,992 INFO L226 Difference]: Without dead ends: 107 [2021-11-23 13:27:24,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:27:24,993 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 70 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:24,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 112 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:27:24,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-23 13:27:25,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 53. [2021-11-23 13:27:25,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.1458333333333333) internal successors, (55), 52 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:25,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2021-11-23 13:27:25,002 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 29 [2021-11-23 13:27:25,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:25,003 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2021-11-23 13:27:25,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:25,003 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2021-11-23 13:27:25,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 13:27:25,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:25,004 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:27:25,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:27:25,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:25,220 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:25,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:25,221 INFO L85 PathProgramCache]: Analyzing trace with hash 2059109626, now seen corresponding path program 1 times [2021-11-23 13:27:25,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:25,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952559847] [2021-11-23 13:27:25,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:25,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:25,232 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:27:25,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5726221] [2021-11-23 13:27:25,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:25,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:25,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:25,233 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:27:25,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 13:27:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:25,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 13:27:25,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:27:25,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:25,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:27:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:25,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:25,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952559847] [2021-11-23 13:27:25,578 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:27:25,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5726221] [2021-11-23 13:27:25,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5726221] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:27:25,578 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:27:25,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-11-23 13:27:25,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601269620] [2021-11-23 13:27:25,578 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:27:25,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:27:25,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:25,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:27:25,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:27:25,580 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:25,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:25,748 INFO L93 Difference]: Finished difference Result 150 states and 157 transitions. [2021-11-23 13:27:25,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:27:25,749 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 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 32 [2021-11-23 13:27:25,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:25,750 INFO L225 Difference]: With dead ends: 150 [2021-11-23 13:27:25,750 INFO L226 Difference]: Without dead ends: 142 [2021-11-23 13:27:25,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:27:25,752 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 240 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:25,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 180 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:27:25,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-23 13:27:25,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 99. [2021-11-23 13:27:25,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 94 states have (on average 1.2234042553191489) internal successors, (115), 98 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:25,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 115 transitions. [2021-11-23 13:27:25,768 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 115 transitions. Word has length 32 [2021-11-23 13:27:25,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:25,769 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 115 transitions. [2021-11-23 13:27:25,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:25,769 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 115 transitions. [2021-11-23 13:27:25,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 13:27:25,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:25,770 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:27:25,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:27:25,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-23 13:27:25,984 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:25,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:25,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1172550814, now seen corresponding path program 1 times [2021-11-23 13:27:25,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:25,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649140411] [2021-11-23 13:27:25,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:25,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:25,995 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:27:25,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [204471471] [2021-11-23 13:27:25,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:25,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:25,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:25,997 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:27:26,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 13:27:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:26,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 13:27:26,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:27:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:26,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:27:26,443 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:26,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:26,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649140411] [2021-11-23 13:27:26,444 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:27:26,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204471471] [2021-11-23 13:27:26,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204471471] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 13:27:26,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:27:26,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 11 [2021-11-23 13:27:26,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134190320] [2021-11-23 13:27:26,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:26,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:27:26,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:26,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:27:26,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-11-23 13:27:26,450 INFO L87 Difference]: Start difference. First operand 99 states and 115 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:26,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:26,766 INFO L93 Difference]: Finished difference Result 108 states and 125 transitions. [2021-11-23 13:27:26,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:27:26,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2021-11-23 13:27:26,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:26,768 INFO L225 Difference]: With dead ends: 108 [2021-11-23 13:27:26,769 INFO L226 Difference]: Without dead ends: 100 [2021-11-23 13:27:26,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-11-23 13:27:26,770 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 63 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:26,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 59 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:27:26,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-23 13:27:26,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2021-11-23 13:27:26,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 96 states have (on average 1.15625) internal successors, (111), 98 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) [2021-11-23 13:27:26,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2021-11-23 13:27:26,787 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 34 [2021-11-23 13:27:26,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:26,788 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2021-11-23 13:27:26,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:26,788 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2021-11-23 13:27:26,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 13:27:26,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:26,789 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:27:26,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:27:27,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-23 13:27:27,004 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:27,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:27,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1539743035, now seen corresponding path program 1 times [2021-11-23 13:27:27,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:27,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376162422] [2021-11-23 13:27:27,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:27,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:27,015 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:27:27,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617195357] [2021-11-23 13:27:27,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:27,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:27,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:27,017 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:27:27,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 13:27:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:27,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 13:27:27,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:27:27,419 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:27,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:27:27,629 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:27,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:27,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376162422] [2021-11-23 13:27:27,630 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:27:27,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617195357] [2021-11-23 13:27:27,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617195357] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:27:27,630 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:27:27,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-11-23 13:27:27,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123366999] [2021-11-23 13:27:27,631 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:27:27,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 13:27:27,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:27,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 13:27:27,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:27:27,632 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:28,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:28,903 INFO L93 Difference]: Finished difference Result 127 states and 143 transitions. [2021-11-23 13:27:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 13:27:28,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 36 [2021-11-23 13:27:28,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:28,905 INFO L225 Difference]: With dead ends: 127 [2021-11-23 13:27:28,905 INFO L226 Difference]: Without dead ends: 125 [2021-11-23 13:27:28,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2021-11-23 13:27:28,907 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 89 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:28,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 113 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 13:27:28,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-23 13:27:28,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 91. [2021-11-23 13:27:28,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 89 states have (on average 1.1348314606741574) internal successors, (101), 90 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:28,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 101 transitions. [2021-11-23 13:27:28,925 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 101 transitions. Word has length 36 [2021-11-23 13:27:28,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:28,925 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 101 transitions. [2021-11-23 13:27:28,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:28,926 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 101 transitions. [2021-11-23 13:27:28,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 13:27:28,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:28,927 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:28,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:27:29,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 13:27:29,143 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:29,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:29,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2070818504, now seen corresponding path program 1 times [2021-11-23 13:27:29,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:29,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43141221] [2021-11-23 13:27:29,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:29,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:29,159 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:27:29,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796583095] [2021-11-23 13:27:29,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:29,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:29,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:29,164 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:27:29,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 13:27:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:29,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 13:27:29,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:27:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:29,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:27:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:31,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:31,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43141221] [2021-11-23 13:27:31,747 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:27:31,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796583095] [2021-11-23 13:27:31,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796583095] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:27:31,748 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:27:31,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-11-23 13:27:31,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921841495] [2021-11-23 13:27:31,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:27:31,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 13:27:31,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:31,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 13:27:31,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:27:31,750 INFO L87 Difference]: Start difference. First operand 91 states and 101 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:31,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:31,984 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2021-11-23 13:27:31,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 13:27:31,985 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 0 states have call successors, (0), 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 38 [2021-11-23 13:27:31,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:31,986 INFO L225 Difference]: With dead ends: 125 [2021-11-23 13:27:31,987 INFO L226 Difference]: Without dead ends: 123 [2021-11-23 13:27:31,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-11-23 13:27:31,988 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 35 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 130 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:31,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 195 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 130 Unchecked, 0.1s Time] [2021-11-23 13:27:31,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-23 13:27:32,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 114. [2021-11-23 13:27:32,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.125) internal successors, (126), 113 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 126 transitions. [2021-11-23 13:27:32,008 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 126 transitions. Word has length 38 [2021-11-23 13:27:32,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:32,008 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 126 transitions. [2021-11-23 13:27:32,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 126 transitions. [2021-11-23 13:27:32,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 13:27:32,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:32,010 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:27:32,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:27:32,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 13:27:32,232 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:32,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:32,233 INFO L85 PathProgramCache]: Analyzing trace with hash 715396543, now seen corresponding path program 1 times [2021-11-23 13:27:32,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:32,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294077956] [2021-11-23 13:27:32,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:32,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:32,242 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:27:32,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627831061] [2021-11-23 13:27:32,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:32,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:32,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:32,248 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:27:32,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 13:27:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:32,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-23 13:27:32,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:27:33,106 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:33,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:27:34,393 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:34,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:34,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294077956] [2021-11-23 13:27:34,394 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:27:34,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627831061] [2021-11-23 13:27:34,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627831061] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:27:34,395 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:27:34,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2021-11-23 13:27:34,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775120688] [2021-11-23 13:27:34,395 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:27:34,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-23 13:27:34,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:34,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-23 13:27:34,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-11-23 13:27:34,398 INFO L87 Difference]: Start difference. First operand 114 states and 126 transitions. Second operand has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:47,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:47,691 INFO L93 Difference]: Finished difference Result 243 states and 268 transitions. [2021-11-23 13:27:47,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-23 13:27:47,692 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 states have internal predecessors, (73), 0 states have call successors, (0), 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 42 [2021-11-23 13:27:47,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:47,693 INFO L225 Difference]: With dead ends: 243 [2021-11-23 13:27:47,693 INFO L226 Difference]: Without dead ends: 237 [2021-11-23 13:27:47,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=700, Invalid=2270, Unknown=0, NotChecked=0, Total=2970 [2021-11-23 13:27:47,696 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 282 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:47,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 240 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-23 13:27:47,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-23 13:27:47,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 199. [2021-11-23 13:27:47,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 197 states have (on average 1.1370558375634519) internal successors, (224), 198 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:47,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 224 transitions. [2021-11-23 13:27:47,740 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 224 transitions. Word has length 42 [2021-11-23 13:27:47,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:47,741 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 224 transitions. [2021-11-23 13:27:47,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:47,742 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 224 transitions. [2021-11-23 13:27:47,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 13:27:47,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:47,743 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:47,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 13:27:47,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:47,968 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:27:47,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:47,969 INFO L85 PathProgramCache]: Analyzing trace with hash -740927539, now seen corresponding path program 1 times [2021-11-23 13:27:47,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:47,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827131284] [2021-11-23 13:27:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:47,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:47,983 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:27:47,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1325888170] [2021-11-23 13:27:47,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:47,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:27:47,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:27:47,987 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:27:48,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-23 13:27:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:48,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-23 13:27:48,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:27:49,141 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:49,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:27:50,224 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:50,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:50,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827131284] [2021-11-23 13:27:50,225 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:27:50,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325888170] [2021-11-23 13:27:50,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325888170] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:27:50,226 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:27:50,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2021-11-23 13:27:50,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007895247] [2021-11-23 13:27:50,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:27:50,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 13:27:50,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:50,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 13:27:50,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-11-23 13:27:50,228 INFO L87 Difference]: Start difference. First operand 199 states and 224 transitions. Second operand has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:28:02,779 WARN L227 SmtUtils]: Spent 11.41s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:28:06,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 13:28:08,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:28:08,806 INFO L93 Difference]: Finished difference Result 257 states and 287 transitions. [2021-11-23 13:28:08,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-23 13:28:08,807 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 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 48 [2021-11-23 13:28:08,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:28:08,809 INFO L225 Difference]: With dead ends: 257 [2021-11-23 13:28:08,809 INFO L226 Difference]: Without dead ends: 255 [2021-11-23 13:28:08,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=387, Invalid=803, Unknown=0, NotChecked=0, Total=1190 [2021-11-23 13:28:08,811 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 276 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 118 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:28:08,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 175 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 313 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-23 13:28:08,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-11-23 13:28:08,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 205. [2021-11-23 13:28:08,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 203 states have (on average 1.0985221674876848) internal successors, (223), 204 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:28:08,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 223 transitions. [2021-11-23 13:28:08,866 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 223 transitions. Word has length 48 [2021-11-23 13:28:08,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:28:08,867 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 223 transitions. [2021-11-23 13:28:08,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:28:08,867 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 223 transitions. [2021-11-23 13:28:08,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 13:28:08,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:28:08,868 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:28:08,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-23 13:28:09,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:28:09,092 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:28:09,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:28:09,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1405402650, now seen corresponding path program 2 times [2021-11-23 13:28:09,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:28:09,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940549236] [2021-11-23 13:28:09,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:28:09,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:28:09,101 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:28:09,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1359880854] [2021-11-23 13:28:09,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:28:09,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:28:09,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:28:09,109 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:28:09,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-23 13:28:09,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-23 13:28:09,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:28:09,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 13:28:09,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:28:09,545 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-23 13:28:09,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:28:10,057 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-23 13:28:10,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:28:10,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940549236] [2021-11-23 13:28:10,058 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:28:10,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359880854] [2021-11-23 13:28:10,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359880854] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:28:10,059 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:28:10,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-11-23 13:28:10,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39079906] [2021-11-23 13:28:10,061 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:28:10,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:28:10,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:28:10,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:28:10,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:28:10,062 INFO L87 Difference]: Start difference. First operand 205 states and 223 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:28:11,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:28:11,076 INFO L93 Difference]: Finished difference Result 211 states and 229 transitions. [2021-11-23 13:28:11,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 13:28:11,077 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-23 13:28:11,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:28:11,078 INFO L225 Difference]: With dead ends: 211 [2021-11-23 13:28:11,078 INFO L226 Difference]: Without dead ends: 209 [2021-11-23 13:28:11,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-23 13:28:11,079 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 58 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 13:28:11,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 61 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 13:28:11,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-23 13:28:11,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 187. [2021-11-23 13:28:11,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 186 states have (on average 1.0913978494623655) internal successors, (203), 186 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:28:11,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 203 transitions. [2021-11-23 13:28:11,126 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 203 transitions. Word has length 51 [2021-11-23 13:28:11,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:28:11,126 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 203 transitions. [2021-11-23 13:28:11,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:28:11,127 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 203 transitions. [2021-11-23 13:28:11,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 13:28:11,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:28:11,127 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:28:11,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-11-23 13:28:11,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-23 13:28:11,328 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:28:11,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:28:11,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1209396953, now seen corresponding path program 2 times [2021-11-23 13:28:11,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:28:11,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926554646] [2021-11-23 13:28:11,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:28:11,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:28:11,337 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:28:11,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [478496080] [2021-11-23 13:28:11,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:28:11,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:28:11,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:28:11,339 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:28:11,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-23 13:28:11,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:28:11,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:28:11,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:28:11,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:28:11,514 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 13:28:11,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:28:11,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:28:11,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926554646] [2021-11-23 13:28:11,514 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:28:11,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478496080] [2021-11-23 13:28:11,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478496080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:28:11,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:28:11,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 13:28:11,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340228098] [2021-11-23 13:28:11,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:28:11,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:28:11,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:28:11,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:28:11,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:28:11,516 INFO L87 Difference]: Start difference. First operand 187 states and 203 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:28:11,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:28:11,616 INFO L93 Difference]: Finished difference Result 264 states and 288 transitions. [2021-11-23 13:28:11,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:28:11,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 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 55 [2021-11-23 13:28:11,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:28:11,617 INFO L225 Difference]: With dead ends: 264 [2021-11-23 13:28:11,617 INFO L226 Difference]: Without dead ends: 185 [2021-11-23 13:28:11,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:28:11,619 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 25 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:28:11,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 110 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:28:11,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-23 13:28:11,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 135. [2021-11-23 13:28:11,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.0671641791044777) internal successors, (143), 134 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:28:11,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 143 transitions. [2021-11-23 13:28:11,658 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 143 transitions. Word has length 55 [2021-11-23 13:28:11,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:28:11,658 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 143 transitions. [2021-11-23 13:28:11,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:28:11,659 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 143 transitions. [2021-11-23 13:28:11,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 13:28:11,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:28:11,660 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:28:11,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-23 13:28:11,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-23 13:28:11,864 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 13:28:11,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:28:11,865 INFO L85 PathProgramCache]: Analyzing trace with hash 864979990, now seen corresponding path program 3 times [2021-11-23 13:28:11,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:28:11,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41490193] [2021-11-23 13:28:11,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:28:11,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:28:11,872 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:28:11,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218131650] [2021-11-23 13:28:11,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 13:28:11,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:28:11,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:28:11,876 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:28:11,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-23 13:28:14,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-23 13:28:14,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:28:14,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-23 13:28:14,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:28:19,873 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 13:28:19,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:28:19,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:28:19,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41490193] [2021-11-23 13:28:19,874 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:28:19,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218131650] [2021-11-23 13:28:19,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218131650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:28:19,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:28:19,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-23 13:28:19,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337074415] [2021-11-23 13:28:19,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:28:19,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 13:28:19,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:28:19,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 13:28:19,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2021-11-23 13:28:19,875 INFO L87 Difference]: Start difference. First operand 135 states and 143 transitions. Second operand has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:28:21,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:28:21,792 INFO L93 Difference]: Finished difference Result 135 states and 143 transitions. [2021-11-23 13:28:21,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-23 13:28:21,793 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 0 states have call successors, (0), 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 65 [2021-11-23 13:28:21,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:28:21,793 INFO L225 Difference]: With dead ends: 135 [2021-11-23 13:28:21,793 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 13:28:21,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2021-11-23 13:28:21,794 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 46 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 13:28:21,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 99 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 148 Invalid, 0 Unknown, 44 Unchecked, 0.8s Time] [2021-11-23 13:28:21,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 13:28:21,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 13:28:21,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:28:21,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 13:28:21,796 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2021-11-23 13:28:21,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:28:21,797 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:28:21,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:28:21,797 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 13:28:21,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 13:28:21,800 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-11-23 13:28:21,800 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-11-23 13:28:21,801 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2021-11-23 13:28:21,801 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2021-11-23 13:28:21,801 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2021-11-23 13:28:21,801 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-11-23 13:28:21,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-23 13:28:22,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-23 13:28:22,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 13:28:46,350 WARN L227 SmtUtils]: Spent 21.25s on a formula simplification. DAG size of input: 194 DAG size of output: 53 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-23 13:29:00,060 WARN L227 SmtUtils]: Spent 13.71s on a formula simplification. DAG size of input: 192 DAG size of output: 54 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-23 13:29:15,337 WARN L227 SmtUtils]: Spent 15.28s on a formula simplification. DAG size of input: 204 DAG size of output: 58 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-23 13:30:26,839 WARN L227 SmtUtils]: Spent 1.19m on a formula simplification. DAG size of input: 187 DAG size of output: 52 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-23 13:31:07,201 WARN L227 SmtUtils]: Spent 40.30s on a formula simplification. DAG size of input: 194 DAG size of output: 52 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-23 13:31:32,923 WARN L227 SmtUtils]: Spent 25.72s on a formula simplification. DAG size of input: 166 DAG size of output: 84 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-23 13:31:32,926 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-11-23 13:31:32,926 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 53) no Hoare annotation was computed. [2021-11-23 13:31:32,927 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2021-11-23 13:31:32,927 INFO L854 garLoopResultBuilder]: At program point L11-2(lines 10 16) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse2 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse4 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1)) (.cse5 (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~xy~0#1|)) (.cse6 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)))) (.cse7 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse8 (= (+ (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|) |ULTIMATE.start_main_~a~0#1|)) (.cse9 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|))))) (or (and .cse0 (not (= |ULTIMATE.start_main_~b~0#1| 0)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (< |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) .cse8 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse7 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse8 .cse9 (= |ULTIMATE.start_main_~s~0#1| 1)))) [2021-11-23 13:31:32,927 INFO L858 garLoopResultBuilder]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2021-11-23 13:31:32,927 INFO L854 garLoopResultBuilder]: At program point L11-5(lines 10 16) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse2 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse4 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1)) (.cse5 (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~xy~0#1|)) (.cse6 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)))) (.cse7 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse8 (= (+ (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|) |ULTIMATE.start_main_~a~0#1|)) (.cse9 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|))))) (or (and .cse0 (not (= |ULTIMATE.start_main_~b~0#1| 0)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (< |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) .cse8 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse7 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse8 .cse9 (= |ULTIMATE.start_main_~s~0#1| 1)))) [2021-11-23 13:31:32,928 INFO L858 garLoopResultBuilder]: For program point L11-6(lines 11 14) no Hoare annotation was computed. [2021-11-23 13:31:32,928 INFO L854 garLoopResultBuilder]: At program point L11-8(lines 10 16) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse2 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse4 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1)) (.cse5 (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~xy~0#1|)) (.cse6 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse7 (= (+ (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|) |ULTIMATE.start_main_~a~0#1|)) (.cse8 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|))))) (or (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse4 .cse5 (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse6 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse7 .cse8 (= |ULTIMATE.start_main_~s~0#1| 1)) (and .cse0 (not (= |ULTIMATE.start_main_~b~0#1| 0)) .cse1 .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|))) .cse6 (< |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) .cse7 .cse8))) [2021-11-23 13:31:32,928 INFO L858 garLoopResultBuilder]: For program point L11-9(lines 11 14) no Hoare annotation was computed. [2021-11-23 13:31:32,928 INFO L854 garLoopResultBuilder]: At program point L11-11(lines 10 16) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse2 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse4 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1)) (.cse5 (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~xy~0#1|)) (.cse6 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse7 (= (+ (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|) |ULTIMATE.start_main_~a~0#1|)) (.cse8 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|))))) (or (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse4 .cse5 (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse6 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse7 .cse8 (= |ULTIMATE.start_main_~s~0#1| 1)) (and .cse0 (not (= |ULTIMATE.start_main_~b~0#1| 0)) .cse1 .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|))) .cse6 (< |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) .cse7 .cse8))) [2021-11-23 13:31:32,929 INFO L858 garLoopResultBuilder]: For program point L11-12(lines 11 14) no Hoare annotation was computed. [2021-11-23 13:31:32,929 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-11-23 13:31:32,929 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 13:31:32,929 INFO L854 garLoopResultBuilder]: At program point L11-14(lines 10 16) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)))) [2021-11-23 13:31:32,929 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 13:31:32,929 INFO L858 garLoopResultBuilder]: For program point L11-15(lines 11 14) no Hoare annotation was computed. [2021-11-23 13:31:32,929 INFO L861 garLoopResultBuilder]: At program point L11-17(lines 10 16) the Hoare annotation is: true [2021-11-23 13:31:32,929 INFO L858 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2021-11-23 13:31:32,930 INFO L858 garLoopResultBuilder]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2021-11-23 13:31:32,930 INFO L858 garLoopResultBuilder]: For program point L12-2(lines 12 13) no Hoare annotation was computed. [2021-11-23 13:31:32,930 INFO L858 garLoopResultBuilder]: For program point L12-3(lines 12 13) no Hoare annotation was computed. [2021-11-23 13:31:32,930 INFO L858 garLoopResultBuilder]: For program point L12-4(lines 12 13) no Hoare annotation was computed. [2021-11-23 13:31:32,930 INFO L858 garLoopResultBuilder]: For program point L12-5(lines 12 13) no Hoare annotation was computed. [2021-11-23 13:31:32,930 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-11-23 13:31:32,931 INFO L854 garLoopResultBuilder]: At program point L47-2(lines 47 56) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse2 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse8 (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~xy~0#1|)) (.cse7 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse9 (= (+ (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|) |ULTIMATE.start_main_~a~0#1|)) (.cse10 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|))))) (or (and (let ((.cse4 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse5 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse6 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~k~0#1| 0) .cse7))) .cse8 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse9 .cse10 (= |ULTIMATE.start_main_~s~0#1| 1)) (and .cse0 (not (= |ULTIMATE.start_main_~b~0#1| 0)) .cse1 .cse2 .cse3 .cse8 (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|))) .cse7 (< |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) .cse9 .cse10))) [2021-11-23 13:31:32,931 INFO L858 garLoopResultBuilder]: For program point L47-3(lines 47 56) no Hoare annotation was computed. [2021-11-23 13:31:32,931 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-11-23 13:31:32,931 INFO L861 garLoopResultBuilder]: At program point L73(lines 18 74) the Hoare annotation is: true [2021-11-23 13:31:32,932 INFO L858 garLoopResultBuilder]: For program point L7(lines 7 9) no Hoare annotation was computed. [2021-11-23 13:31:32,932 INFO L858 garLoopResultBuilder]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2021-11-23 13:31:32,932 INFO L858 garLoopResultBuilder]: For program point L7-2(lines 7 9) no Hoare annotation was computed. [2021-11-23 13:31:32,932 INFO L858 garLoopResultBuilder]: For program point L7-3(lines 7 9) no Hoare annotation was computed. [2021-11-23 13:31:32,932 INFO L858 garLoopResultBuilder]: For program point L7-4(lines 7 9) no Hoare annotation was computed. [2021-11-23 13:31:32,932 INFO L858 garLoopResultBuilder]: For program point L7-5(lines 7 9) no Hoare annotation was computed. [2021-11-23 13:31:32,933 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 13:31:32,933 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-11-23 13:31:32,933 INFO L858 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-11-23 13:31:32,933 INFO L854 garLoopResultBuilder]: At program point L41-2(lines 41 68) the Hoare annotation is: (let ((.cse11 (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)))) (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse3 (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~xy~0#1|)) (.cse8 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse12 (= |ULTIMATE.start_main_~a~0#1| .cse11)) (.cse9 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse10 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1|))) (or (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~y~0#1|) .cse2 .cse3 (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (exists ((|ULTIMATE.start_main_~k~0#1| Int) (|ULTIMATE.start_main_~temp~0#1| Int)) (let ((.cse4 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~temp~0#1|)) (.cse5 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|)) (.cse6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1|))) (and (= (mod (+ .cse4 .cse5 (* |ULTIMATE.start_main_~b~0#1| (- 1))) .cse6) 0) (exists ((|v_ULTIMATE.start_main_~q~0#1_28| Int)) (let ((.cse7 (+ (* |v_ULTIMATE.start_main_~q~0#1_28| |ULTIMATE.start_main_~x~0#1|) (* |ULTIMATE.start_main_~y~0#1| (div (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~temp~0#1|) (* (- 1) |ULTIMATE.start_main_~b~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|)) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1|)))))) (and (< |ULTIMATE.start_main_~b~0#1| .cse7) (not (= .cse7 0))))) (= (+ |ULTIMATE.start_main_~s~0#1| (* |ULTIMATE.start_main_~k~0#1| (div (+ .cse4 (* (- 1) |ULTIMATE.start_main_~b~0#1|) .cse5) .cse6))) |ULTIMATE.start_main_~temp~0#1|) (not (= |ULTIMATE.start_main_~k~0#1| 0))))) .cse8 (< |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) (or (= (+ .cse9 .cse10) .cse11) (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) (not (= |ULTIMATE.start_main_~c~0#1| 0))) .cse12) (let ((.cse13 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|)) (.cse14 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|))) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~b~0#1| (+ .cse13 .cse14)) (<= 1 |ULTIMATE.start_main_~b~0#1|) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse8 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse12 (= |ULTIMATE.start_main_~s~0#1| 1) (or (= (+ .cse13 .cse14 .cse9 .cse10) .cse11) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)))))))) [2021-11-23 13:31:32,934 INFO L858 garLoopResultBuilder]: For program point L8-2(line 8) no Hoare annotation was computed. [2021-11-23 13:31:32,934 INFO L858 garLoopResultBuilder]: For program point L41-3(lines 41 68) no Hoare annotation was computed. [2021-11-23 13:31:32,934 INFO L858 garLoopResultBuilder]: For program point L8-4(line 8) no Hoare annotation was computed. [2021-11-23 13:31:32,934 INFO L858 garLoopResultBuilder]: For program point L8-6(line 8) no Hoare annotation was computed. [2021-11-23 13:31:32,934 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 13:31:32,934 INFO L858 garLoopResultBuilder]: For program point L8-8(line 8) no Hoare annotation was computed. [2021-11-23 13:31:32,935 INFO L858 garLoopResultBuilder]: For program point L8-10(line 8) no Hoare annotation was computed. [2021-11-23 13:31:32,935 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 43) no Hoare annotation was computed. [2021-11-23 13:31:32,935 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-11-23 13:31:32,939 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:31:32,941 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:31:32,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:32,973 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:32,973 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~q~0#1_28,QUANTIFIED] [2021-11-23 13:31:32,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:32,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:32,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~q~0#1_28,QUANTIFIED] [2021-11-23 13:31:32,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:32,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:32,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:32,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:32,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:32,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:32,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:32,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:32,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:32,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~q~0#1_28,QUANTIFIED] [2021-11-23 13:31:32,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:32,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:32,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~q~0#1_28,QUANTIFIED] [2021-11-23 13:31:32,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:32,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:32,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:32,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:32,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:32,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:32,982 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:32,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:31:32 BoogieIcfgContainer [2021-11-23 13:31:32,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:31:32,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:31:32,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:31:32,985 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:31:32,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:27:20" (3/4) ... [2021-11-23 13:31:32,990 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 13:31:33,004 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-23 13:31:33,005 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 13:31:33,005 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 13:31:33,006 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 13:31:33,034 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((x <= 5 && yy == y * y) && 1 <= y) && y <= 5) && y * x == xy) && 1 <= cond) && (\exists ULTIMATE.start_main_~k~0#1 : int, ULTIMATE.start_main_~temp~0#1 : int :: (((y * ULTIMATE.start_main_~temp~0#1 + x * q + b * -1) % (y * ULTIMATE.start_main_~k~0#1) == 0 && (\exists v_ULTIMATE.start_main_~q~0#1_28 : int :: b < v_ULTIMATE.start_main_~q~0#1_28 * x + y * ((y * ULTIMATE.start_main_~temp~0#1 + -1 * b + x * q) / (y * ULTIMATE.start_main_~k~0#1)) && !(v_ULTIMATE.start_main_~q~0#1_28 * x + y * ((y * ULTIMATE.start_main_~temp~0#1 + -1 * b + x * q) / (y * ULTIMATE.start_main_~k~0#1)) == 0))) && s + ULTIMATE.start_main_~k~0#1 * ((y * ULTIMATE.start_main_~temp~0#1 + -1 * b + x * q) / (y * ULTIMATE.start_main_~k~0#1)) == ULTIMATE.start_main_~temp~0#1) && !(ULTIMATE.start_main_~k~0#1 == 0))) && 1 <= x) && b < a) && ((y * k * s + x * k * q == x * p + y * r || b <= c) || !(c == 0))) && a == x * p + y * r) || ((((((((((((x <= 5 && yy == y * y) && y <= 5) && y * x == xy) && b == x * q + y * s) && 1 <= b) && r == 0) && q == 0) && 1 <= x) && a == x) && a == x * p + y * r) && s == 1) && (x * q + y * s + y * k * s + x * k * q == x * p + y * r || !(b == c))) [2021-11-23 13:31:33,057 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:31:33,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:31:33,058 INFO L158 Benchmark]: Toolchain (without parser) took 253514.35ms. Allocated memory was 92.3MB in the beginning and 167.8MB in the end (delta: 75.5MB). Free memory was 59.8MB in the beginning and 50.6MB in the end (delta: 9.2MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. [2021-11-23 13:31:33,059 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 47.2MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:31:33,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.00ms. Allocated memory is still 92.3MB. Free memory was 59.7MB in the beginning and 68.2MB in the end (delta: -8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:31:33,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.92ms. Allocated memory is still 92.3MB. Free memory was 68.2MB in the beginning and 66.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:31:33,060 INFO L158 Benchmark]: Boogie Preprocessor took 31.47ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 65.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:31:33,060 INFO L158 Benchmark]: RCFGBuilder took 442.09ms. Allocated memory is still 92.3MB. Free memory was 65.1MB in the beginning and 53.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:31:33,061 INFO L158 Benchmark]: TraceAbstraction took 252573.62ms. Allocated memory was 92.3MB in the beginning and 167.8MB in the end (delta: 75.5MB). Free memory was 53.3MB in the beginning and 54.8MB in the end (delta: -1.6MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. [2021-11-23 13:31:33,061 INFO L158 Benchmark]: Witness Printer took 72.87ms. Allocated memory is still 167.8MB. Free memory was 54.8MB in the beginning and 50.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 13:31:33,063 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 47.2MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.00ms. Allocated memory is still 92.3MB. Free memory was 59.7MB in the beginning and 68.2MB in the end (delta: -8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.92ms. Allocated memory is still 92.3MB. Free memory was 68.2MB in the beginning and 66.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.47ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 65.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 442.09ms. Allocated memory is still 92.3MB. Free memory was 65.1MB in the beginning and 53.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 252573.62ms. Allocated memory was 92.3MB in the beginning and 167.8MB in the end (delta: 75.5MB). Free memory was 53.3MB in the beginning and 54.8MB in the end (delta: -1.6MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. * Witness Printer took 72.87ms. Allocated memory is still 167.8MB. Free memory was 54.8MB in the beginning and 50.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~q~0#1_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~q~0#1_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~q~0#1_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~q~0#1_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] * 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: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: 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, 47 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 252.5s, OverallIterations: 16, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 37.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 190.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 1480 SdHoareTripleChecker+Valid, 10.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1480 mSDsluCounter, 1898 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 174 IncrementalHoareTripleChecker+Unchecked, 1384 mSDsCounter, 361 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1715 IncrementalHoareTripleChecker+Invalid, 2251 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 361 mSolverCounterUnsat, 514 mSDtfsCounter, 1715 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 939 GetRequests, 713 SyntacticMatches, 11 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1356 ImplicationChecksByTransitivity, 32.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205occurred in iteration=13, InterpolantAutomatonStates: 187, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 354 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 68 NumberOfFragments, 882 HoareAnnotationTreeSize, 9 FomulaSimplifications, 33739 FormulaSimplificationTreeSizeReduction, 3.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 57168 FormulaSimplificationTreeSizeReductionInter, 187.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 555 NumberOfCodeBlocks, 496 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 841 ConstructedInterpolants, 29 QuantifiedInterpolants, 11881 SizeOfPredicates, 153 NumberOfNonLiveVariables, 1982 ConjunctsInSsa, 318 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 168/306 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 6 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((x <= 5 && !(b == 0)) && yy == y * y) && 1 <= y) && y <= 5) && cond == 1) && y * x == xy) && b == x * q + y * s) && 1 <= x) && b < a) && k * b + c == a) && a == x * p + y * r) || (((((((((((((x <= 5 && yy == y * y) && 1 <= y) && y <= 5) && cond == 1) && y * x == xy) && b == x * q + y * s) && r == 0) && q == 0) && 1 <= x) && a == x) && k * b + c == a) && a == x * p + y * r) && s == 1) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((((x <= 5 && yy == y * y) && 1 <= y) && y <= 5) && b == y) && cond == 1) && y * x == xy) && r == 0) && q == 0) && 1 <= x) && a == x) && k * b + c == a) && a == x * p + y * r) && s == 1) || (((((((((((x <= 5 && !(b == 0)) && yy == y * y) && 1 <= y) && y <= 5) && cond == 1) && y * x == xy) && b == x * q + y * s) && 1 <= x) && b < a) && k * b + c == a) && a == x * p + y * r) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((((((((x <= 5 && yy == y * y) && 1 <= y) && y <= 5) && b == y) && cond == 1) && r == 0) && q == 0) && 1 <= x) || ((((((((x <= 5 && yy == y * y) && 1 <= y) && y <= 5) && b == y) && r == 0) && q == 0) && k == 0) && 1 <= x)) && y * x == xy) && a == x) && k * b + c == a) && a == x * p + y * r) && s == 1) || (((((((((((x <= 5 && !(b == 0)) && yy == y * y) && 1 <= y) && y <= 5) && y * x == xy) && 1 <= cond) && b == x * q + y * s) && 1 <= x) && b < a) && k * b + c == a) && a == x * p + y * r) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((((x <= 5 && yy == y * y) && 1 <= y) && y <= 5) && b == y) && cond == 1) && y * x == xy) && r == 0) && q == 0) && 1 <= x) && a == x) && k * b + c == a) && a == x * p + y * r) && s == 1) || (((((((((((x <= 5 && !(b == 0)) && yy == y * y) && 1 <= y) && y <= 5) && cond == 1) && y * x == xy) && b == x * q + y * s) && 1 <= x) && b < a) && k * b + c == a) && a == x * p + y * r) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((x <= 5 && 1 <= y) && y <= 5) && 1 <= x) && a == x * p + y * r - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((x <= 5 && !(b == 0)) && yy == y * y) && 1 <= y) && y <= 5) && cond == 1) && y * x == xy) && b == x * q + y * s) && 1 <= x) && b < a) && k * b + c == a) && a == x * p + y * r) || (((((((((((((x <= 5 && yy == y * y) && 1 <= y) && y <= 5) && cond == 1) && y * x == xy) && b == x * q + y * s) && r == 0) && q == 0) && 1 <= x) && a == x) && k * b + c == a) && a == x * p + y * r) && s == 1) - InvariantResult [Line: 41]: Loop Invariant [2021-11-23 13:31:33,096 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:33,096 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:33,097 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~q~0#1_28,QUANTIFIED] [2021-11-23 13:31:33,097 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:33,097 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:33,097 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~q~0#1_28,QUANTIFIED] [2021-11-23 13:31:33,097 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:33,098 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:33,098 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:33,098 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:33,099 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:33,099 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:33,100 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:33,101 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:33,101 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:33,101 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~q~0#1_28,QUANTIFIED] [2021-11-23 13:31:33,101 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:33,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:33,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~q~0#1_28,QUANTIFIED] [2021-11-23 13:31:33,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:33,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:33,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:33,103 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:33,103 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] [2021-11-23 13:31:33,103 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~temp~0#1,QUANTIFIED] [2021-11-23 13:31:33,103 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0#1,QUANTIFIED] Derived loop invariant: ((((((((((x <= 5 && yy == y * y) && 1 <= y) && y <= 5) && y * x == xy) && 1 <= cond) && (\exists ULTIMATE.start_main_~k~0#1 : int, ULTIMATE.start_main_~temp~0#1 : int :: (((y * ULTIMATE.start_main_~temp~0#1 + x * q + b * -1) % (y * ULTIMATE.start_main_~k~0#1) == 0 && (\exists v_ULTIMATE.start_main_~q~0#1_28 : int :: b < v_ULTIMATE.start_main_~q~0#1_28 * x + y * ((y * ULTIMATE.start_main_~temp~0#1 + -1 * b + x * q) / (y * ULTIMATE.start_main_~k~0#1)) && !(v_ULTIMATE.start_main_~q~0#1_28 * x + y * ((y * ULTIMATE.start_main_~temp~0#1 + -1 * b + x * q) / (y * ULTIMATE.start_main_~k~0#1)) == 0))) && s + ULTIMATE.start_main_~k~0#1 * ((y * ULTIMATE.start_main_~temp~0#1 + -1 * b + x * q) / (y * ULTIMATE.start_main_~k~0#1)) == ULTIMATE.start_main_~temp~0#1) && !(ULTIMATE.start_main_~k~0#1 == 0))) && 1 <= x) && b < a) && ((y * k * s + x * k * q == x * p + y * r || b <= c) || !(c == 0))) && a == x * p + y * r) || ((((((((((((x <= 5 && yy == y * y) && y <= 5) && y * x == xy) && b == x * q + y * s) && 1 <= b) && r == 0) && q == 0) && 1 <= x) && a == x) && a == x * p + y * r) && s == 1) && (x * q + y * s + y * k * s + x * k * q == x * p + y * r || !(b == c))) RESULT: Ultimate proved your program to be correct! [2021-11-23 13:31:33,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338076cf-f486-4bfb-a375-d3fc7117c589/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE