./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/cohencu-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/cohencu-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf57d72e341b105161cbeacf29e58db93d2b67f8e0e097e4dbed74551cbdcfff ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:02:30,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:02:30,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:02:30,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:02:30,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:02:30,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:02:30,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:02:30,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:02:30,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:02:30,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:02:30,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:02:30,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:02:30,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:02:30,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:02:30,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:02:30,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:02:30,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:02:30,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:02:30,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:02:30,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:02:30,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:02:30,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:02:30,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:02:30,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:02:30,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:02:30,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:02:30,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:02:30,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:02:30,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:02:30,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:02:30,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:02:30,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:02:30,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:02:30,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:02:30,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:02:30,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:02:30,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:02:30,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:02:30,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:02:30,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:02:30,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:02:30,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:02:30,214 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:02:30,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:02:30,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:02:30,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:02:30,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:02:30,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:02:30,217 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:02:30,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:02:30,218 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:02:30,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:02:30,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:02:30,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:02:30,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:02:30,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:02:30,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:02:30,219 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:02:30,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:02:30,220 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:02:30,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:02:30,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:02:30,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:02:30,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:02:30,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:02:30,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:02:30,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:02:30,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:02:30,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:02:30,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:02:30,222 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:02:30,223 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:02:30,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:02:30,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:02:30,223 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_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf57d72e341b105161cbeacf29e58db93d2b67f8e0e097e4dbed74551cbdcfff [2021-10-28 23:02:30,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:02:30,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:02:30,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:02:30,534 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:02:30,534 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:02:30,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/nla-digbench/cohencu-ll.c [2021-10-28 23:02:30,614 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/data/fae915a85/bcd84669345e400cabf03eb4d2b608ac/FLAGb3e6e65b2 [2021-10-28 23:02:31,150 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:02:31,150 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/sv-benchmarks/c/nla-digbench/cohencu-ll.c [2021-10-28 23:02:31,161 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/data/fae915a85/bcd84669345e400cabf03eb4d2b608ac/FLAGb3e6e65b2 [2021-10-28 23:02:31,532 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/data/fae915a85/bcd84669345e400cabf03eb4d2b608ac [2021-10-28 23:02:31,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:02:31,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:02:31,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:02:31,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:02:31,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:02:31,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a77283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31, skipping insertion in model container [2021-10-28 23:02:31,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:02:31,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:02:31,748 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/sv-benchmarks/c/nla-digbench/cohencu-ll.c[588,601] [2021-10-28 23:02:31,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:02:31,793 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:02:31,806 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/sv-benchmarks/c/nla-digbench/cohencu-ll.c[588,601] [2021-10-28 23:02:31,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:02:31,844 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:02:31,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31 WrapperNode [2021-10-28 23:02:31,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:02:31,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:02:31,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:02:31,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:02:31,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:02:31,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:02:31,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:02:31,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:02:31,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:02:31,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:02:31,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:02:31,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:02:31,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:02:31,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:31,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:02:31,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:02:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:02:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:02:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:02:32,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:02:32,308 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:02:32,308 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2021-10-28 23:02:32,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:02:32 BoogieIcfgContainer [2021-10-28 23:02:32,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:02:32,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:02:32,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:02:32,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:02:32,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:02:31" (1/3) ... [2021-10-28 23:02:32,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f126a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:02:32, skipping insertion in model container [2021-10-28 23:02:32,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31" (2/3) ... [2021-10-28 23:02:32,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f126a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:02:32, skipping insertion in model container [2021-10-28 23:02:32,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:02:32" (3/3) ... [2021-10-28 23:02:32,320 INFO L111 eAbstractionObserver]: Analyzing ICFG cohencu-ll.c [2021-10-28 23:02:32,326 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:02:32,326 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-10-28 23:02:32,374 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:02:32,381 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:02:32,381 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-28 23:02:32,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 39 states have (on average 1.641025641025641) internal successors, (64), 50 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:32,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-28 23:02:32,403 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:32,404 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-28 23:02:32,405 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:02:32,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:32,410 INFO L85 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2021-10-28 23:02:32,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:32,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046334429] [2021-10-28 23:02:32,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:32,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:32,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:32,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046334429] [2021-10-28 23:02:32,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046334429] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:02:32,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:02:32,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:02:32,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405779784] [2021-10-28 23:02:32,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:02:32,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:32,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:02:32,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:02:32,820 INFO L87 Difference]: Start difference. First operand has 51 states, 39 states have (on average 1.641025641025641) internal successors, (64), 50 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:33,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:33,015 INFO L93 Difference]: Finished difference Result 97 states and 125 transitions. [2021-10-28 23:02:33,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:02:33,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2021-10-28 23:02:33,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:33,026 INFO L225 Difference]: With dead ends: 97 [2021-10-28 23:02:33,026 INFO L226 Difference]: Without dead ends: 44 [2021-10-28 23:02:33,029 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:02:33,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-28 23:02:33,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2021-10-28 23:02:33,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 42 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:33,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2021-10-28 23:02:33,065 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 5 [2021-10-28 23:02:33,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:33,066 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2021-10-28 23:02:33,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:33,067 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2021-10-28 23:02:33,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:02:33,067 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:33,068 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:33,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:02:33,068 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:02:33,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:33,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1810815341, now seen corresponding path program 1 times [2021-10-28 23:02:33,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:33,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020494913] [2021-10-28 23:02:33,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:33,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:33,086 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:02:33,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769206469] [2021-10-28 23:02:33,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:33,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:33,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:33,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:02:33,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:02:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:33,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:02:33,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:33,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:33,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:33,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020494913] [2021-10-28 23:02:33,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:02:33,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769206469] [2021-10-28 23:02:33,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769206469] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:02:33,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:02:33,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:02:33,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231359450] [2021-10-28 23:02:33,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:02:33,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:33,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:02:33,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:02:33,276 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:33,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:33,416 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2021-10-28 23:02:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:02:33,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2021-10-28 23:02:33,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:33,418 INFO L225 Difference]: With dead ends: 84 [2021-10-28 23:02:33,419 INFO L226 Difference]: Without dead ends: 82 [2021-10-28 23:02:33,420 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:02:33,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-28 23:02:33,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 47. [2021-10-28 23:02:33,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 38 states have (on average 1.236842105263158) internal successors, (47), 46 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:33,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-10-28 23:02:33,431 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 7 [2021-10-28 23:02:33,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:33,431 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-10-28 23:02:33,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:33,432 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-10-28 23:02:33,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 23:02:33,432 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:33,432 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:33,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:02:33,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-28 23:02:33,660 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:02:33,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:33,661 INFO L85 PathProgramCache]: Analyzing trace with hash 731943696, now seen corresponding path program 1 times [2021-10-28 23:02:33,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:33,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795020080] [2021-10-28 23:02:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:33,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:33,685 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:02:33,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2120929982] [2021-10-28 23:02:33,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:33,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:33,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:33,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:02:33,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:02:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:33,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:02:33,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:33,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:33,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:33,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795020080] [2021-10-28 23:02:33,822 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:02:33,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120929982] [2021-10-28 23:02:33,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120929982] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:02:33,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:02:33,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:02:33,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334011918] [2021-10-28 23:02:33,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:02:33,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:33,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:02:33,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:02:33,825 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:33,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:33,903 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2021-10-28 23:02:33,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:02:33,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2021-10-28 23:02:33,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:33,906 INFO L225 Difference]: With dead ends: 82 [2021-10-28 23:02:33,906 INFO L226 Difference]: Without dead ends: 78 [2021-10-28 23:02:33,906 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:02:33,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-28 23:02:33,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 58. [2021-10-28 23:02:33,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 57 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) [2021-10-28 23:02:33,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2021-10-28 23:02:33,917 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 9 [2021-10-28 23:02:33,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:33,917 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2021-10-28 23:02:33,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:33,917 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2021-10-28 23:02:33,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:02:33,918 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:33,918 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:33,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-28 23:02:34,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:34,132 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:02:34,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:34,132 INFO L85 PathProgramCache]: Analyzing trace with hash -976588461, now seen corresponding path program 1 times [2021-10-28 23:02:34,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:34,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341906893] [2021-10-28 23:02:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:34,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:34,145 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:02:34,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705344853] [2021-10-28 23:02:34,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:34,145 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:34,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:34,146 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:02:34,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:02:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:34,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:02:34,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:34,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:34,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341906893] [2021-10-28 23:02:34,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:02:34,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705344853] [2021-10-28 23:02:34,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705344853] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:02:34,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:02:34,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:02:34,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820683361] [2021-10-28 23:02:34,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:02:34,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:34,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:02:34,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:02:34,367 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:34,499 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2021-10-28 23:02:34,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:02:34,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2021-10-28 23:02:34,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:34,503 INFO L225 Difference]: With dead ends: 79 [2021-10-28 23:02:34,504 INFO L226 Difference]: Without dead ends: 55 [2021-10-28 23:02:34,504 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:02:34,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-28 23:02:34,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-10-28 23:02:34,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 45 states have (on average 1.2) internal successors, (54), 53 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) [2021-10-28 23:02:34,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-10-28 23:02:34,529 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 11 [2021-10-28 23:02:34,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:34,530 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-10-28 23:02:34,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:34,530 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-10-28 23:02:34,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:02:34,531 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:34,531 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:34,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:02:34,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:34,748 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:02:34,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:34,748 INFO L85 PathProgramCache]: Analyzing trace with hash -417136811, now seen corresponding path program 1 times [2021-10-28 23:02:34,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:34,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234510303] [2021-10-28 23:02:34,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:34,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:34,762 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:02:34,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757226589] [2021-10-28 23:02:34,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:34,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:34,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:34,764 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:02:34,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:02:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:34,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:02:34,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:35,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:35,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:35,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234510303] [2021-10-28 23:02:35,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:02:35,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757226589] [2021-10-28 23:02:35,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757226589] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:02:35,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:02:35,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-10-28 23:02:35,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888951503] [2021-10-28 23:02:35,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:02:35,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:35,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:02:35,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:02:35,126 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-10-28 23:02:35,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:35,253 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2021-10-28 23:02:35,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:02:35,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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 [2021-10-28 23:02:35,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:35,256 INFO L225 Difference]: With dead ends: 95 [2021-10-28 23:02:35,256 INFO L226 Difference]: Without dead ends: 93 [2021-10-28 23:02:35,257 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:02:35,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-28 23:02:35,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2021-10-28 23:02:35,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.183673469387755) internal successors, (58), 57 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:35,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2021-10-28 23:02:35,265 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 18 [2021-10-28 23:02:35,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:35,266 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2021-10-28 23:02:35,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-10-28 23:02:35,266 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2021-10-28 23:02:35,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:02:35,267 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:35,267 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:35,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:02:35,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:35,496 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:02:35,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:35,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1436360968, now seen corresponding path program 1 times [2021-10-28 23:02:35,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:35,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349846176] [2021-10-28 23:02:35,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:35,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:35,510 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:02:35,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618431284] [2021-10-28 23:02:35,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:35,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:35,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:35,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:02:35,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:02:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:35,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:02:35,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:35,802 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:35,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:35,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349846176] [2021-10-28 23:02:35,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:02:35,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618431284] [2021-10-28 23:02:35,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618431284] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:02:35,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:02:35,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-10-28 23:02:35,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761382813] [2021-10-28 23:02:35,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:02:35,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:35,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:02:35,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:02:35,805 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:35,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:35,930 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2021-10-28 23:02:35,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:02:35,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2021-10-28 23:02:35,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:35,932 INFO L225 Difference]: With dead ends: 93 [2021-10-28 23:02:35,932 INFO L226 Difference]: Without dead ends: 91 [2021-10-28 23:02:35,932 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:02:35,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-28 23:02:35,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 60. [2021-10-28 23:02:35,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 59 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2021-10-28 23:02:35,940 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 20 [2021-10-28 23:02:35,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:35,940 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2021-10-28 23:02:35,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:35,940 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2021-10-28 23:02:35,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:02:35,941 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:35,941 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:35,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:02:36,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 23:02:36,164 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:02:36,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:36,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1658232005, now seen corresponding path program 1 times [2021-10-28 23:02:36,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:36,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886958055] [2021-10-28 23:02:36,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:36,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:36,175 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:02:36,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1103280301] [2021-10-28 23:02:36,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:36,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:36,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:36,177 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:02:36,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 23:02:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:36,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 23:02:36,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:36,573 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:36,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:36,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886958055] [2021-10-28 23:02:36,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:02:36,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103280301] [2021-10-28 23:02:36,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103280301] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:02:36,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:02:36,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-10-28 23:02:36,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648508322] [2021-10-28 23:02:36,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:02:36,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:36,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:02:36,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:02:36,576 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:36,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:36,723 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2021-10-28 23:02:36,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:02:36,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2021-10-28 23:02:36,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:36,725 INFO L225 Difference]: With dead ends: 92 [2021-10-28 23:02:36,725 INFO L226 Difference]: Without dead ends: 76 [2021-10-28 23:02:36,725 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:02:36,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-10-28 23:02:36,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2021-10-28 23:02:36,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 70 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) [2021-10-28 23:02:36,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2021-10-28 23:02:36,735 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 22 [2021-10-28 23:02:36,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:36,735 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2021-10-28 23:02:36,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:36,736 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2021-10-28 23:02:36,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:02:36,737 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:36,737 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:36,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:02:36,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:36,960 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:02:36,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash -914405458, now seen corresponding path program 1 times [2021-10-28 23:02:36,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:36,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439326355] [2021-10-28 23:02:36,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:36,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:36,972 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:02:36,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140167582] [2021-10-28 23:02:36,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:36,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:36,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:36,974 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:02:36,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 23:02:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:37,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:02:37,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:37,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:37,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439326355] [2021-10-28 23:02:37,524 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:02:37,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140167582] [2021-10-28 23:02:37,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140167582] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:02:37,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:02:37,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 23:02:37,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89544919] [2021-10-28 23:02:37,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:02:37,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:37,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:02:37,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:02:37,526 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:37,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:37,745 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2021-10-28 23:02:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:02:37,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-28 23:02:37,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:37,747 INFO L225 Difference]: With dead ends: 75 [2021-10-28 23:02:37,747 INFO L226 Difference]: Without dead ends: 73 [2021-10-28 23:02:37,747 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:02:37,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-28 23:02:37,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2021-10-28 23:02:37,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 62 states have (on average 1.1612903225806452) internal successors, (72), 70 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:37,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2021-10-28 23:02:37,756 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 29 [2021-10-28 23:02:37,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:37,756 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2021-10-28 23:02:37,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:37,757 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2021-10-28 23:02:37,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:02:37,758 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:37,758 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-10-28 23:02:37,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:02:37,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-28 23:02:37,984 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:02:37,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:37,984 INFO L85 PathProgramCache]: Analyzing trace with hash -917268371, now seen corresponding path program 2 times [2021-10-28 23:02:37,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:37,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090617040] [2021-10-28 23:02:37,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:37,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:38,000 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:02:38,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1925189709] [2021-10-28 23:02:38,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:02:38,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:38,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:38,016 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:02:38,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 23:02:38,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:02:38,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:02:38,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 23:02:38,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:38,493 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:38,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:38,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090617040] [2021-10-28 23:02:38,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:02:38,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925189709] [2021-10-28 23:02:38,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925189709] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:02:38,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:02:38,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 23:02:38,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98650663] [2021-10-28 23:02:38,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:02:38,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:38,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:02:38,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:02:38,498 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:38,750 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2021-10-28 23:02:38,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:02:38,751 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-28 23:02:38,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:38,752 INFO L225 Difference]: With dead ends: 114 [2021-10-28 23:02:38,752 INFO L226 Difference]: Without dead ends: 112 [2021-10-28 23:02:38,753 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:02:38,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-28 23:02:38,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 75. [2021-10-28 23:02:38,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 66 states have (on average 1.1515151515151516) internal successors, (76), 74 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2021-10-28 23:02:38,762 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 29 [2021-10-28 23:02:38,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:38,762 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2021-10-28 23:02:38,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:38,763 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2021-10-28 23:02:38,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:02:38,764 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:38,764 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:38,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:02:38,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-28 23:02:38,980 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:02:38,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:38,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1724808433, now seen corresponding path program 1 times [2021-10-28 23:02:38,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:38,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114645460] [2021-10-28 23:02:38,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:38,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:38,988 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:02:38,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [405538493] [2021-10-28 23:02:38,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:38,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:38,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:38,989 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:02:38,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 23:02:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:39,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:02:39,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:39,587 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:39,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:39,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114645460] [2021-10-28 23:02:39,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:02:39,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405538493] [2021-10-28 23:02:39,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405538493] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:02:39,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:02:39,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 23:02:39,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142670646] [2021-10-28 23:02:39,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:02:39,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:39,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:02:39,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:02:39,590 INFO L87 Difference]: Start difference. First operand 75 states and 76 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) [2021-10-28 23:02:39,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:39,794 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2021-10-28 23:02:39,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:02:39,794 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 31 [2021-10-28 23:02:39,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:39,795 INFO L225 Difference]: With dead ends: 77 [2021-10-28 23:02:39,795 INFO L226 Difference]: Without dead ends: 69 [2021-10-28 23:02:39,796 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:02:39,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-28 23:02:39,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-10-28 23:02:39,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 60 states have (on average 1.15) internal successors, (69), 68 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2021-10-28 23:02:39,802 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 31 [2021-10-28 23:02:39,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:39,802 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2021-10-28 23:02:39,803 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) [2021-10-28 23:02:39,803 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2021-10-28 23:02:39,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:02:39,804 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:39,804 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-10-28 23:02:39,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:02:40,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-28 23:02:40,005 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:02:40,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:40,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1026452976, now seen corresponding path program 2 times [2021-10-28 23:02:40,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:40,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532956785] [2021-10-28 23:02:40,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:40,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:40,017 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:02:40,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [42284537] [2021-10-28 23:02:40,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:02:40,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:40,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:40,019 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:02:40,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 23:02:40,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:02:40,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:02:40,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 23:02:40,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:40,674 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:40,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:40,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532956785] [2021-10-28 23:02:40,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:02:40,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42284537] [2021-10-28 23:02:40,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42284537] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:02:40,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:02:40,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-28 23:02:40,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631654165] [2021-10-28 23:02:40,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:02:40,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:40,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:02:40,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:02:40,679 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 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) [2021-10-28 23:02:41,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:41,164 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2021-10-28 23:02:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:02:41,164 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 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 31 [2021-10-28 23:02:41,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:41,165 INFO L225 Difference]: With dead ends: 105 [2021-10-28 23:02:41,165 INFO L226 Difference]: Without dead ends: 103 [2021-10-28 23:02:41,166 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:02:41,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-28 23:02:41,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 71. [2021-10-28 23:02:41,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 70 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:02:41,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2021-10-28 23:02:41,175 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 31 [2021-10-28 23:02:41,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:41,175 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2021-10-28 23:02:41,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 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) [2021-10-28 23:02:41,175 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2021-10-28 23:02:41,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 23:02:41,176 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:41,176 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-10-28 23:02:41,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:02:41,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:41,392 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:02:41,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:41,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1421324371, now seen corresponding path program 2 times [2021-10-28 23:02:41,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:41,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780750966] [2021-10-28 23:02:41,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:41,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:41,404 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:02:41,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [331785420] [2021-10-28 23:02:41,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:02:41,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:02:41,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:41,406 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:02:41,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 23:02:41,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:02:41,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:02:41,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:02:41,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-28 23:02:47,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:47,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780750966] [2021-10-28 23:02:47,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:02:47,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331785420] [2021-10-28 23:02:47,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331785420] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:02:47,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:02:47,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:02:47,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292509907] [2021-10-28 23:02:47,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:02:47,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:47,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:02:47,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:02:47,779 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:31,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:03:31,482 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2021-10-28 23:03:31,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:03:31,482 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 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 33 [2021-10-28 23:03:31,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:03:31,483 INFO L225 Difference]: With dead ends: 71 [2021-10-28 23:03:31,483 INFO L226 Difference]: Without dead ends: 55 [2021-10-28 23:03:31,484 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=73, Invalid=166, Unknown=1, NotChecked=0, Total=240 [2021-10-28 23:03:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-28 23:03:31,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-10-28 23:03:31,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 51 states have (on average 1.0784313725490196) internal successors, (55), 54 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) [2021-10-28 23:03:31,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2021-10-28 23:03:31,493 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 33 [2021-10-28 23:03:31,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:03:31,493 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2021-10-28 23:03:31,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:31,494 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2021-10-28 23:03:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 23:03:31,495 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:03:31,495 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:03:31,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:03:31,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:03:31,696 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:03:31,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:31,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1915973738, now seen corresponding path program 2 times [2021-10-28 23:03:31,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:31,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273256260] [2021-10-28 23:03:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:31,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:31,706 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:03:31,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069575048] [2021-10-28 23:03:31,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:03:31,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:03:31,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:03:31,708 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:03:31,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 23:03:32,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:03:32,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:03:32,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 23:03:32,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:03:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:03:32,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:03:32,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273256260] [2021-10-28 23:03:32,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:03:32,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069575048] [2021-10-28 23:03:32,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069575048] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:03:32,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:03:32,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 23:03:32,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864885448] [2021-10-28 23:03:32,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:03:32,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:03:32,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:03:32,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:03:32,778 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:33,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:03:33,042 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2021-10-28 23:03:33,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:03:33,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2021-10-28 23:03:33,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:03:33,044 INFO L225 Difference]: With dead ends: 70 [2021-10-28 23:03:33,044 INFO L226 Difference]: Without dead ends: 68 [2021-10-28 23:03:33,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:03:33,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-28 23:03:33,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2021-10-28 23:03:33,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 60 states have (on average 1.0833333333333333) internal successors, (65), 63 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) [2021-10-28 23:03:33,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2021-10-28 23:03:33,055 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 40 [2021-10-28 23:03:33,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:03:33,055 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2021-10-28 23:03:33,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:33,056 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2021-10-28 23:03:33,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 23:03:33,057 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:03:33,057 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2021-10-28 23:03:33,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:03:33,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:03:33,263 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:03:33,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:33,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1918836651, now seen corresponding path program 3 times [2021-10-28 23:03:33,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:33,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340204175] [2021-10-28 23:03:33,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:33,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:33,289 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:03:33,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1131260337] [2021-10-28 23:03:33,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:03:33,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:03:33,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:03:33,294 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:03:33,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 23:03:33,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-28 23:03:33,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:03:33,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-28 23:03:33,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:03:36,382 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (* 3 (* c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~n~0)))) (and (= (+ (* 18 (* c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~n~0)) (* 6 (* c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~n~0)) (* 8 c_ULTIMATE.start_main_~y~0) .cse0) (+ 7 (* 6 (* c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~n~0)) (* 12 c_ULTIMATE.start_main_~n~0) (* 9 (* c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~n~0)) (* c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~y~0))) (let ((.cse1 (= c_ULTIMATE.start_main_~y~0 (+ (* 3 c_ULTIMATE.start_main_~n~0) .cse0 1)))) (or (and (= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) .cse1) (and (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond) (not .cse1)))))) is different from false [2021-10-28 23:03:36,422 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-28 23:03:36,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:03:36,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340204175] [2021-10-28 23:03:36,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:03:36,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131260337] [2021-10-28 23:03:36,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131260337] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:03:36,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:03:36,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-10-28 23:03:36,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894634366] [2021-10-28 23:03:36,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:03:36,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:03:36,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:03:36,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=54, Unknown=1, NotChecked=14, Total=90 [2021-10-28 23:03:36,425 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:39,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:03:39,207 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2021-10-28 23:03:39,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:03:39,207 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 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 40 [2021-10-28 23:03:39,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:03:39,208 INFO L225 Difference]: With dead ends: 64 [2021-10-28 23:03:39,208 INFO L226 Difference]: Without dead ends: 62 [2021-10-28 23:03:39,208 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=44, Invalid=91, Unknown=1, NotChecked=20, Total=156 [2021-10-28 23:03:39,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-28 23:03:39,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-10-28 23:03:39,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 59 states have (on average 1.0677966101694916) internal successors, (63), 61 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) [2021-10-28 23:03:39,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2021-10-28 23:03:39,220 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 40 [2021-10-28 23:03:39,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:03:39,220 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2021-10-28 23:03:39,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:39,221 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2021-10-28 23:03:39,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-28 23:03:39,222 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:03:39,222 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:03:39,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:03:39,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 23:03:39,442 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:03:39,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:39,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1290365657, now seen corresponding path program 2 times [2021-10-28 23:03:39,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:39,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333025781] [2021-10-28 23:03:39,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:39,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:39,467 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:03:39,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327371579] [2021-10-28 23:03:39,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:03:39,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:03:39,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:03:39,479 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:03:39,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-28 23:03:40,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:03:40,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:03:40,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-28 23:03:40,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:03:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-28 23:03:53,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:03:53,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333025781] [2021-10-28 23:03:53,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:03:53,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327371579] [2021-10-28 23:03:53,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327371579] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:03:53,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:03:53,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-28 23:03:53,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812044419] [2021-10-28 23:03:53,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:03:53,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:03:53,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:03:53,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:03:53,365 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 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) [2021-10-28 23:04:36,436 WARN L207 SmtUtils]: Spent 5.69 s on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2021-10-28 23:04:50,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:04:50,495 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2021-10-28 23:04:50,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:04:50,496 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 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 42 [2021-10-28 23:04:50,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:04:50,497 INFO L225 Difference]: With dead ends: 62 [2021-10-28 23:04:50,497 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 23:04:50,497 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:04:50,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 23:04:50,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-10-28 23:04:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.0384615384615385) internal successors, (54), 53 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) [2021-10-28 23:04:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-10-28 23:04:50,509 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 42 [2021-10-28 23:04:50,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:04:50,509 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-10-28 23:04:50,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 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) [2021-10-28 23:04:50,509 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-10-28 23:04:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-28 23:04:50,510 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:04:50,510 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2021-10-28 23:04:50,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:04:50,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-28 23:04:50,718 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:04:50,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:50,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1460895752, now seen corresponding path program 3 times [2021-10-28 23:04:50,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:04:50,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804625438] [2021-10-28 23:04:50,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:50,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:04:50,743 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:04:50,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [683206441] [2021-10-28 23:04:50,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:04:50,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:04:50,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:04:50,744 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:04:50,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 23:04:51,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-28 23:04:51,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:04:51,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-28 23:04:51,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:04:51,924 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-28 23:04:51,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:04:51,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804625438] [2021-10-28 23:04:51,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:04:51,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683206441] [2021-10-28 23:04:51,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683206441] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:04:51,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:04:51,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-10-28 23:04:51,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676337244] [2021-10-28 23:04:51,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:04:51,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:04:51,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:04:51,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:04:51,926 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:04:56,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:04:56,731 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2021-10-28 23:04:56,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:04:56,732 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-10-28 23:04:56,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:04:56,732 INFO L225 Difference]: With dead ends: 54 [2021-10-28 23:04:56,732 INFO L226 Difference]: Without dead ends: 52 [2021-10-28 23:04:56,733 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:04:56,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-28 23:04:56,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-28 23:04:56,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 51 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:04:56,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2021-10-28 23:04:56,741 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 42 [2021-10-28 23:04:56,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:04:56,742 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2021-10-28 23:04:56,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:04:56,742 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2021-10-28 23:04:56,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 23:04:56,742 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:04:56,743 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:56,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-10-28 23:04:56,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-28 23:04:56,948 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-28 23:04:56,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:56,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1161479854, now seen corresponding path program 3 times [2021-10-28 23:04:56,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:04:56,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318442088] [2021-10-28 23:04:56,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:56,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:04:56,958 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:04:56,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2127021940] [2021-10-28 23:04:56,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:04:56,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:04:56,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:04:56,981 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:04:56,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 23:04:59,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-28 23:04:59,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:04:59,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-28 23:04:59,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:05:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-28 23:05:53,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:05:53,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318442088] [2021-10-28 23:05:53,813 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:05:53,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127021940] [2021-10-28 23:05:53,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127021940] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:05:53,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:05:53,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-10-28 23:05:53,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094520265] [2021-10-28 23:05:53,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:05:53,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:05:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:05:53,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:05:53,816 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:46,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:46,266 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2021-10-28 23:06:46,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:06:46,267 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-10-28 23:06:46,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:06:46,267 INFO L225 Difference]: With dead ends: 52 [2021-10-28 23:06:46,267 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:06:46,268 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 52.8s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:06:46,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:06:46,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:06:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:46,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:06:46,269 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2021-10-28 23:06:46,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:06:46,269 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:06:46,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:46,269 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:06:46,270 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:06:46,272 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:06:46,272 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:06:46,273 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:06:46,273 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:06:46,273 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:06:46,273 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:06:46,273 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:06:46,274 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:06:46,274 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:06:46,274 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:06:46,274 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:06:46,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:46,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:06:46,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:06:46,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:06:46,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:06:46,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:06:46,632 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:06:46,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:06:46,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:06:46,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:06:46,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:06:46,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:06:46,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:06:46,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:06:46,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:06:46,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:07:07,850 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:07:07,850 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:07:07,851 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:07:07,851 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:07:07,851 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:07:07,851 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:07:07,851 INFO L853 garLoopResultBuilder]: At program point L54(lines 22 55) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6))) [2021-10-28 23:07:07,851 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:07:07,852 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:07:07,852 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:07:07,852 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (or (and (<= (div ULTIMATE.start_main_~a~0 (- 65536)) (div (+ 32767 (* ULTIMATE.start_main_~a~0 (- 1))) 65536)) (< ULTIMATE.start_main_~a~0 65536) (<= 0 ULTIMATE.start_main_~a~0)) (and (< ULTIMATE.start_main_~a~0 0) (<= 0 (+ ULTIMATE.start_main_~a~0 65536)) (< 32767 (mod ULTIMATE.start_main_~a~0 65536))))) (.cse2 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6))) (.cse3 (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)))) (or (and .cse0 (= ULTIMATE.start_main_~y~0 (+ (* 3 ULTIMATE.start_main_~n~0) (* 3 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)) 1)) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) .cse1 .cse2 .cse3) (and .cse0 (= (+ 6 (* 12 ULTIMATE.start_main_~y~0) (* 18 ULTIMATE.start_main_~x~0)) (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) (* 2 ULTIMATE.start_main_~z~0))) .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~n~0 0)))) [2021-10-28 23:07:07,852 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:07:07,852 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (or (and (<= (div ULTIMATE.start_main_~a~0 (- 65536)) (div (+ 32767 (* ULTIMATE.start_main_~a~0 (- 1))) 65536)) (< ULTIMATE.start_main_~a~0 65536) (<= 0 ULTIMATE.start_main_~a~0)) (and (< ULTIMATE.start_main_~a~0 0) (<= 0 (+ ULTIMATE.start_main_~a~0 65536)) (< 32767 (mod ULTIMATE.start_main_~a~0 65536))))) (.cse2 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6))) (.cse3 (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)))) (or (and .cse0 (= ULTIMATE.start_main_~y~0 (+ (* 3 ULTIMATE.start_main_~n~0) (* 3 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)) 1)) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) .cse1 .cse2 .cse3) (and .cse0 (= (+ 6 (* 12 ULTIMATE.start_main_~y~0) (* 18 ULTIMATE.start_main_~x~0)) (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) (* 2 ULTIMATE.start_main_~z~0))) .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~n~0 0)))) [2021-10-28 23:07:07,852 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:07:07,852 INFO L853 garLoopResultBuilder]: At program point L15-8(lines 14 20) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (= ULTIMATE.start_main_~y~0 (let ((.cse5 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (+ (* 3 (* .cse5 .cse5)) (* 3 .cse5) 1)))) (.cse2 (or (and (<= (div ULTIMATE.start_main_~a~0 (- 65536)) (div (+ 32767 (* ULTIMATE.start_main_~a~0 (- 1))) 65536)) (< ULTIMATE.start_main_~a~0 65536) (<= 0 ULTIMATE.start_main_~a~0)) (and (< ULTIMATE.start_main_~a~0 0) (<= 0 (+ ULTIMATE.start_main_~a~0 65536)) (< 32767 (mod ULTIMATE.start_main_~a~0 65536))))) (.cse3 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6))) (.cse4 (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~n~0 0)) (and .cse0 .cse1 (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) .cse2 .cse3 .cse4))) [2021-10-28 23:07:07,852 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:07:07,852 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (= ULTIMATE.start_main_~y~0 (let ((.cse5 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (+ (* 3 (* .cse5 .cse5)) (* 3 .cse5) 1)))) (.cse2 (or (and (<= (div ULTIMATE.start_main_~a~0 (- 65536)) (div (+ 32767 (* ULTIMATE.start_main_~a~0 (- 1))) 65536)) (< ULTIMATE.start_main_~a~0 65536) (<= 0 ULTIMATE.start_main_~a~0)) (and (< ULTIMATE.start_main_~a~0 0) (<= 0 (+ ULTIMATE.start_main_~a~0 65536)) (< 32767 (mod ULTIMATE.start_main_~a~0 65536))))) (.cse3 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6))) (.cse4 (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~n~0 0)) (and .cse0 .cse1 (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) .cse2 .cse3 .cse4))) [2021-10-28 23:07:07,852 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:07:07,853 INFO L853 garLoopResultBuilder]: At program point L15-14(lines 38 39) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (= ULTIMATE.start_main_~y~0 (let ((.cse5 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (+ (* 3 (* .cse5 .cse5)) (* 3 .cse5) 1)))) (.cse2 (or (and (<= (div ULTIMATE.start_main_~a~0 (- 65536)) (div (+ 32767 (* ULTIMATE.start_main_~a~0 (- 1))) 65536)) (< ULTIMATE.start_main_~a~0 65536) (<= 0 ULTIMATE.start_main_~a~0)) (and (< ULTIMATE.start_main_~a~0 0) (<= 0 (+ ULTIMATE.start_main_~a~0 65536)) (< 32767 (mod ULTIMATE.start_main_~a~0 65536))))) (.cse3 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6))) (.cse4 (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~n~0 0)) (and .cse0 .cse1 (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) .cse2 .cse3 .cse4))) [2021-10-28 23:07:07,853 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:07:07,853 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:07:07,853 INFO L853 garLoopResultBuilder]: At program point L32-2(lines 32 45) the Hoare annotation is: (let ((.cse1 (or (and (<= (div ULTIMATE.start_main_~a~0 (- 65536)) (div (+ 32767 (* ULTIMATE.start_main_~a~0 (- 1))) 65536)) (< ULTIMATE.start_main_~a~0 65536) (<= 0 ULTIMATE.start_main_~a~0)) (and (< ULTIMATE.start_main_~a~0 0) (<= 0 (+ ULTIMATE.start_main_~a~0 65536)) (< 32767 (mod ULTIMATE.start_main_~a~0 65536))))) (.cse2 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6))) (.cse3 (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)))) (or (and (= ULTIMATE.start_main_~y~0 (let ((.cse0 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (+ (* 3 (* .cse0 .cse0)) (* 3 .cse0) 1))) .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~n~0 0)) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~y~0 (+ (* 3 ULTIMATE.start_main_~n~0) (* 3 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)) 1)) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) .cse1 .cse2 .cse3))) [2021-10-28 23:07:07,853 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~a~0)) (.cse3 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)))) (or (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~x~0 6)) (= ULTIMATE.start_main_~x~0 1) (< ULTIMATE.start_main_~a~0 1) (= ULTIMATE.start_main_~z~0 12) .cse0 (= ULTIMATE.start_main_~n~0 1)) (and (exists ((ULTIMATE.start_main_~n~0 Int)) (and (let ((.cse1 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)))) (or (and (= 0 ULTIMATE.start___VERIFIER_assert_~cond) (not .cse1)) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse1))) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)) (< ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~n~0))) (= ULTIMATE.start_main_~y~0 (let ((.cse2 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (+ (* 3 (* .cse2 .cse2)) (* 3 .cse2) 1))) (or (and (<= (div ULTIMATE.start_main_~a~0 (- 65536)) (div (+ 32767 (* ULTIMATE.start_main_~a~0 (- 1))) 65536)) (< ULTIMATE.start_main_~a~0 65536) .cse0) (and (< ULTIMATE.start_main_~a~0 0) (<= 0 (+ ULTIMATE.start_main_~a~0 65536)) (< 32767 (mod ULTIMATE.start_main_~a~0 65536)))) .cse3 (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0))) (and (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_main_~y~0 1) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) .cse3 (= ULTIMATE.start_main_~n~0 0)))) [2021-10-28 23:07:07,853 INFO L857 garLoopResultBuilder]: For program point L32-3(lines 32 45) no Hoare annotation was computed. [2021-10-28 23:07:07,853 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:07:07,854 INFO L853 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (.cse1 (<= 0 ULTIMATE.start_main_~a~0)) (.cse3 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)))) (or (and .cse0 (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~y~0 7) (< ULTIMATE.start_main_~a~0 1) .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~n~0 1)) (and (= ULTIMATE.start_main_~x~0 0) .cse0 (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~z~0 6) .cse2 .cse3) (let ((.cse5 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (let ((.cse4 (* .cse5 .cse5 .cse5))) (and (= ULTIMATE.start_main_~x~0 .cse4) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 6 (* ULTIMATE.start_main_~a~0 .cse5 .cse5 .cse5)) (* 12 .cse4)) (* .cse5 .cse5 .cse5 ULTIMATE.start_main_~z~0)) (= ULTIMATE.start_main_~y~0 (+ (* 3 (* .cse5 .cse5)) (* 3 .cse5) 1)) (or (and (<= (div ULTIMATE.start_main_~a~0 (- 65536)) (div (+ 32767 (* ULTIMATE.start_main_~a~0 (- 1))) 65536)) (< ULTIMATE.start_main_~a~0 65536) .cse1) (and (< ULTIMATE.start_main_~a~0 0) (<= 0 (+ ULTIMATE.start_main_~a~0 65536)) (< 32767 (mod ULTIMATE.start_main_~a~0 65536)))) .cse3))))) [2021-10-28 23:07:07,854 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:07:07,854 INFO L857 garLoopResultBuilder]: For program point L15-21(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:07:07,854 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:07:07,854 INFO L853 garLoopResultBuilder]: At program point L15-23(lines 14 20) the Hoare annotation is: (let ((.cse0 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (and (= ULTIMATE.start_main_~x~0 (* .cse0 .cse0 .cse0)) (= ULTIMATE.start_main_~y~0 (+ (* 3 (* .cse0 .cse0)) (* 3 .cse0) 1)) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)))) [2021-10-28 23:07:07,855 INFO L857 garLoopResultBuilder]: For program point L15-24(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:07:07,855 INFO L853 garLoopResultBuilder]: At program point L15-26(lines 14 20) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)))) (or (and (= ULTIMATE.start_main_~x~0 0) .cse0 (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~z~0 6) .cse1) (and .cse0 (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~x~0 6)) (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~z~0 12) (= ULTIMATE.start_main_~n~0 1)) (and (= ULTIMATE.start_main_~x~0 (let ((.cse2 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (* .cse2 .cse2 .cse2))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~y~0 (+ (* 3 ULTIMATE.start_main_~n~0) (* 3 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)) 1)) .cse1))) [2021-10-28 23:07:07,855 INFO L857 garLoopResultBuilder]: For program point L15-27(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:07:07,855 INFO L853 garLoopResultBuilder]: At program point L15-29(lines 14 20) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)))) (or (and (= ULTIMATE.start_main_~x~0 0) .cse0 (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~z~0 6) .cse1) (and .cse0 (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~x~0 6)) (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~z~0 12) (= ULTIMATE.start_main_~n~0 1)) (and (= ULTIMATE.start_main_~x~0 (let ((.cse2 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (* .cse2 .cse2 .cse2))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~y~0 (+ (* 3 ULTIMATE.start_main_~n~0) (* 3 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)) 1)) .cse1))) [2021-10-28 23:07:07,855 INFO L857 garLoopResultBuilder]: For program point L15-30(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:07:07,855 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:07:07,856 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:07:07,856 INFO L853 garLoopResultBuilder]: At program point L15-32(lines 14 20) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6))) [2021-10-28 23:07:07,856 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:07:07,856 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:07:07,856 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:07:07,856 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:07:07,857 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:07:07,857 INFO L857 garLoopResultBuilder]: For program point L16-7(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:07:07,857 INFO L857 garLoopResultBuilder]: For program point L16-8(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:07:07,857 INFO L857 garLoopResultBuilder]: For program point L16-9(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:07:07,857 INFO L857 garLoopResultBuilder]: For program point L16-10(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:07:07,857 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:07:07,857 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:07:07,858 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:07:07,858 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:07:07,861 INFO L731 BasicCegarLoop]: Path program histogram: [3, 3, 3, 2, 2, 1, 1, 1, 1] [2021-10-28 23:07:07,863 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:07:07,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,880 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,882 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:07:07 BoogieIcfgContainer [2021-10-28 23:07:07,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:07:07,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:07:07,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:07:07,899 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:07:07,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:02:32" (3/4) ... [2021-10-28 23:07:07,902 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:07:07,913 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-10-28 23:07:07,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:07:07,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:07:07,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:07:07,937 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 <= cond && y == x + 6) && x == 1) && a < 1) && z == 12) && 0 <= a) && n == 1) || (((((\exists ULTIMATE.start_main_~n~0 : int :: ((((0 == cond && !(z == 6 * ULTIMATE.start_main_~n~0 + 6)) || (1 == cond && z == 6 * ULTIMATE.start_main_~n~0 + 6)) && ULTIMATE.start_main_~n~0 <= a + 1) && x == ULTIMATE.start_main_~n~0 * ULTIMATE.start_main_~n~0 * ULTIMATE.start_main_~n~0) && a < ULTIMATE.start_main_~n~0) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n)) || ((((x == 0 && y == 1) && !(0 == cond)) && z == 6 * n + 6) && n == 0) [2021-10-28 23:07:07,956 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:07:07,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:07:07,957 INFO L168 Benchmark]: Toolchain (without parser) took 276419.36 ms. Allocated memory was 104.9 MB in the beginning and 169.9 MB in the end (delta: 65.0 MB). Free memory was 75.6 MB in the beginning and 111.7 MB in the end (delta: -36.1 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:07,958 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 62.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:07:07,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.79 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 75.6 MB in the beginning and 115.7 MB in the end (delta: -40.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:07,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.02 ms. Allocated memory is still 140.5 MB. Free memory was 115.7 MB in the beginning and 113.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:07,959 INFO L168 Benchmark]: Boogie Preprocessor took 24.79 ms. Allocated memory is still 140.5 MB. Free memory was 113.6 MB in the beginning and 112.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:07,960 INFO L168 Benchmark]: RCFGBuilder took 399.68 ms. Allocated memory is still 140.5 MB. Free memory was 112.5 MB in the beginning and 101.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:07,960 INFO L168 Benchmark]: TraceAbstraction took 275585.58 ms. Allocated memory was 140.5 MB in the beginning and 169.9 MB in the end (delta: 29.4 MB). Free memory was 100.8 MB in the beginning and 115.9 MB in the end (delta: -15.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:07,961 INFO L168 Benchmark]: Witness Printer took 57.98 ms. Allocated memory is still 169.9 MB. Free memory was 115.9 MB in the beginning and 111.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:07,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 62.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 305.79 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 75.6 MB in the beginning and 115.7 MB in the end (delta: -40.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.02 ms. Allocated memory is still 140.5 MB. Free memory was 115.7 MB in the beginning and 113.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.79 ms. Allocated memory is still 140.5 MB. Free memory was 113.6 MB in the beginning and 112.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 399.68 ms. Allocated memory is still 140.5 MB. Free memory was 112.5 MB in the beginning and 101.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 275585.58 ms. Allocated memory was 140.5 MB in the beginning and 169.9 MB in the end (delta: 29.4 MB). Free memory was 100.8 MB in the beginning and 115.9 MB in the end (delta: -15.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 16.1 GB. * Witness Printer took 57.98 ms. Allocated memory is still 169.9 MB. Free memory was 115.9 MB in the beginning and 111.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * 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_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,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: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: 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, 51 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 275.4s, OverallIterations: 17, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 163.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 21.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 386 SDtfs, 591 SDslu, 902 SDs, 0 SdLazy, 1718 SolverSat, 327 SolverUnsat, 25 SolverUnknown, 0 SolverNotchecked, 139.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 505 GetRequests, 361 SyntacticMatches, 4 SemanticMatches, 140 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 91.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=9, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 203 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 55 NumberOfFragments, 1581 HoareAnnotationTreeSize, 13 FomulaSimplifications, 13985 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 13 FomulaSimplificationsInter, 4082 FormulaSimplificationTreeSizeReductionInter, 21.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 79.3s InterpolantComputationTime, 460 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 443 ConstructedInterpolants, 1 QuantifiedInterpolants, 7316 SizeOfPredicates, 122 NumberOfNonLiveVariables, 1514 ConjunctsInSsa, 337 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 210/337 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 11 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant [2021-10-28 23:07:07,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,986 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,986 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-28 23:07:07,986 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] Derived loop invariant: (((((((1 <= cond && y == x + 6) && x == 1) && a < 1) && z == 12) && 0 <= a) && n == 1) || (((((\exists ULTIMATE.start_main_~n~0 : int :: ((((0 == cond && !(z == 6 * ULTIMATE.start_main_~n~0 + 6)) || (1 == cond && z == 6 * ULTIMATE.start_main_~n~0 + 6)) && ULTIMATE.start_main_~n~0 <= a + 1) && x == ULTIMATE.start_main_~n~0 * ULTIMATE.start_main_~n~0 * ULTIMATE.start_main_~n~0) && a < ULTIMATE.start_main_~n~0) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n)) || ((((x == 0 && y == 1) && !(0 == cond)) && z == 6 * n + 6) && n == 0) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((1 == cond && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n) && n == 0) || (((((1 == cond && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && n <= a + 1) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((1 == cond && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n) && n == 0) || (((((1 == cond && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && n <= a + 1) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: !(0 == cond) && z == 6 * n + 6 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: !(0 == cond) && z == 6 * n + 6 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((1 == cond && y == 3 * n + 3 * (n * n) + 1) && n <= a + 1) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n) || (((((1 == cond && 6 + 12 * y + 18 * x == z * y + 2 * z) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n) && n == 0) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((1 == cond && y == 3 * n + 3 * (n * n) + 1) && n <= a + 1) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n) || (((((1 == cond && 6 + 12 * y + 18 * x == z * y + 2 * z) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n) && n == 0) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((x == 0 && 1 <= cond) && y == 1) && z == 6) && z == 6 * n + 6) || ((((1 <= cond && y == x + 6) && x == 1) && z == 12) && n == 1)) || (((x == (6 + z * -1) / -6 * ((6 + z * -1) / -6) * ((6 + z * -1) / -6) && 1 == cond) && y == 3 * n + 3 * (n * n) + 1) && z == 6 * n + 6) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((1 <= cond && x == 1) && y == 7) && a < 1) && 0 <= a) && !(0 == cond)) && z == 6 * n + 6) && n == 1) || (((((x == 0 && 1 <= cond) && y == 1) && z == 6) && !(0 == cond)) && z == 6 * n + 6)) || (((((x == (6 + z * -1) / -6 * ((6 + z * -1) / -6) * ((6 + z * -1) / -6) && 1 == cond) && 6 * (a * ((6 + z * -1) / -6) * ((6 + z * -1) / -6) * ((6 + z * -1) / -6)) + 12 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6) * ((6 + z * -1) / -6)) == (6 + z * -1) / -6 * ((6 + z * -1) / -6) * ((6 + z * -1) / -6) * z) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1 && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n) && n == 0) || (((((1 == cond && y == 3 * n + 3 * (n * n) + 1) && n <= a + 1) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((1 == cond && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n) && n == 0) || (((((1 == cond && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && n <= a + 1) && (((a / -65536 <= (32767 + a * -1) / 65536 && a < 65536) && 0 <= a) || ((a < 0 && 0 <= a + 65536) && 32767 < a % 65536))) && z == 6 * n + 6) && x == n * n * n) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((x == 0 && 1 <= cond) && y == 1) && z == 6) && z == 6 * n + 6) || ((((1 <= cond && y == x + 6) && x == 1) && z == 12) && n == 1)) || (((x == (6 + z * -1) / -6 * ((6 + z * -1) / -6) * ((6 + z * -1) / -6) && 1 == cond) && y == 3 * n + 3 * (n * n) + 1) && z == 6 * n + 6) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((x == (6 + z * -1) / -6 * ((6 + z * -1) / -6) * ((6 + z * -1) / -6) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && !(0 == cond)) && z == 6 * n + 6 RESULT: Ultimate proved your program to be correct! [2021-10-28 23:07:08,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a61c80-1ffa-42d3-b98f-32c1cfe16926/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...