./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be --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 0bcbcb4a55258889434b8bf703da9ec6fb29d07a2fbacad968a5ab15e005b314 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:30:28,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:30:28,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:30:28,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:30:28,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:30:28,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:30:28,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:30:28,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:30:28,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:30:28,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:30:28,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:30:28,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:30:28,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:30:28,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:30:28,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:30:28,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:30:28,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:30:28,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:30:28,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:30:28,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:30:28,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:30:28,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:30:28,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:30:28,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:30:28,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:30:28,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:30:28,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:30:28,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:30:28,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:30:28,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:30:28,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:30:28,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:30:28,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:30:28,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:30:28,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:30:28,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:30:28,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:30:28,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:30:28,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:30:28,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:30:28,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:30:28,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:30:28,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:30:28,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:30:28,661 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:30:28,661 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:30:28,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:30:28,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:30:28,664 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:30:28,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:30:28,665 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:30:28,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:30:28,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:30:28,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:30:28,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:30:28,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:30:28,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:30:28,668 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:30:28,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:30:28,668 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:30:28,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:30:28,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:30:28,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:30:28,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:30:28,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:30:28,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:30:28,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:30:28,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:30:28,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:30:28,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:30:28,671 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:30:28,671 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:30:28,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:30:28,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:30:28,672 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_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bcbcb4a55258889434b8bf703da9ec6fb29d07a2fbacad968a5ab15e005b314 [2021-10-21 20:30:28,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:30:29,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:30:29,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:30:29,026 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:30:29,027 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:30:29,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound50.c [2021-10-21 20:30:29,104 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/data/85d27860c/a6db44e3bc7b450c9f6c134be9070e9d/FLAGd2d3b4876 [2021-10-21 20:30:29,606 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:30:29,607 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound50.c [2021-10-21 20:30:29,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/data/85d27860c/a6db44e3bc7b450c9f6c134be9070e9d/FLAGd2d3b4876 [2021-10-21 20:30:29,982 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/data/85d27860c/a6db44e3bc7b450c9f6c134be9070e9d [2021-10-21 20:30:29,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:30:29,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:30:29,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:30:29,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:30:29,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:30:29,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:29,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a4905cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:29, skipping insertion in model container [2021-10-21 20:30:29,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:30:29" (1/1) ... [2021-10-21 20:30:30,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:30:30,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:30:30,191 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_f401b48a-604b-4ead-bf5c-93e3706d14a9/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound50.c[588,601] [2021-10-21 20:30:30,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:30:30,235 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:30:30,249 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_f401b48a-604b-4ead-bf5c-93e3706d14a9/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound50.c[588,601] [2021-10-21 20:30:30,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:30:30,278 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:30:30,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:30 WrapperNode [2021-10-21 20:30:30,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:30:30,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:30:30,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:30:30,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:30:30,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:30" (1/1) ... [2021-10-21 20:30:30,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:30" (1/1) ... [2021-10-21 20:30:30,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:30:30,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:30:30,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:30:30,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:30:30,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:30" (1/1) ... [2021-10-21 20:30:30,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:30" (1/1) ... [2021-10-21 20:30:30,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:30" (1/1) ... [2021-10-21 20:30:30,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:30" (1/1) ... [2021-10-21 20:30:30,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:30" (1/1) ... [2021-10-21 20:30:30,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:30" (1/1) ... [2021-10-21 20:30:30,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:30" (1/1) ... [2021-10-21 20:30:30,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:30:30,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:30:30,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:30:30,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:30:30,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:30" (1/1) ... [2021-10-21 20:30:30,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:30:30,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:30,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:30:30,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:30:30,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:30:30,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:30:30,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:30:30,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:30:30,865 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:30:30,865 INFO L299 CfgBuilder]: Removed 29 assume(true) statements. [2021-10-21 20:30:30,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:30:30 BoogieIcfgContainer [2021-10-21 20:30:30,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:30:30,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:30:30,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:30:30,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:30:30,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:30:29" (1/3) ... [2021-10-21 20:30:30,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787ef87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:30:30, skipping insertion in model container [2021-10-21 20:30:30,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:30:30" (2/3) ... [2021-10-21 20:30:30,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787ef87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:30:30, skipping insertion in model container [2021-10-21 20:30:30,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:30:30" (3/3) ... [2021-10-21 20:30:30,877 INFO L111 eAbstractionObserver]: Analyzing ICFG cohencu-ll_valuebound50.c [2021-10-21 20:30:30,883 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:30:30,883 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-10-21 20:30:30,941 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:30:30,950 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 [2021-10-21 20:30:30,950 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-21 20:30:30,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 52 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:30,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 20:30:30,975 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:30,975 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:30,976 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)] === [2021-10-21 20:30:30,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:30,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-21 20:30:30,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:30,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311064509] [2021-10-21 20:30:30,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:30,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:31,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:31,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:31,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311064509] [2021-10-21 20:30:31,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311064509] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:31,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:31,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:30:31,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119902256] [2021-10-21 20:30:31,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 20:30:31,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:31,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:30:31,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:30:31,193 INFO L87 Difference]: Start difference. First operand has 53 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 52 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-21 20:30:31,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:31,215 INFO L93 Difference]: Finished difference Result 103 states and 130 transitions. [2021-10-21 20:30:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:30:31,217 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2021-10-21 20:30:31,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:31,226 INFO L225 Difference]: With dead ends: 103 [2021-10-21 20:30:31,227 INFO L226 Difference]: Without dead ends: 49 [2021-10-21 20:30:31,230 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:30:31,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-21 20:30:31,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-21 20:30:31,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 48 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:31,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2021-10-21 20:30:31,271 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 7 [2021-10-21 20:30:31,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:31,271 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2021-10-21 20:30:31,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-21 20:30:31,272 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2021-10-21 20:30:31,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 20:30:31,273 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:31,273 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:31,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:30:31,274 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:31,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:31,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-21 20:30:31,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:31,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081737643] [2021-10-21 20:30:31,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:31,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:31,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:31,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:31,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081737643] [2021-10-21 20:30:31,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081737643] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:31,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:31,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:30:31,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598737672] [2021-10-21 20:30:31,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:30:31,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:31,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:30:31,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:30:31,524 INFO L87 Difference]: Start difference. First operand 49 states and 49 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) [2021-10-21 20:30:31,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:31,717 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-10-21 20:30:31,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:30:31,718 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 [2021-10-21 20:30:31,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:31,719 INFO L225 Difference]: With dead ends: 50 [2021-10-21 20:30:31,721 INFO L226 Difference]: Without dead ends: 46 [2021-10-21 20:30:31,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:30:31,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-21 20:30:31,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2021-10-21 20:30:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.25) internal successors, (45), 44 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:31,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2021-10-21 20:30:31,731 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 7 [2021-10-21 20:30:31,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:31,731 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2021-10-21 20:30:31,732 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) [2021-10-21 20:30:31,732 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2021-10-21 20:30:31,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-21 20:30:31,732 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:31,733 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:31,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:30:31,733 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:31,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:31,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-10-21 20:30:31,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:31,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492211394] [2021-10-21 20:30:31,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:31,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:31,753 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:30:31,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185969216] [2021-10-21 20:30:31,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:31,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:31,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:31,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:30:31,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 20:30:31,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:31,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:30:31,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:30:32,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:32,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:32,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492211394] [2021-10-21 20:30:32,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:30:32,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185969216] [2021-10-21 20:30:32,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185969216] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:32,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:32,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:30:32,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264681396] [2021-10-21 20:30:32,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:30:32,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:32,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:30:32,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:30:32,021 INFO L87 Difference]: Start difference. First operand 45 states and 45 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) [2021-10-21 20:30:32,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:32,117 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2021-10-21 20:30:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:30:32,118 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 [2021-10-21 20:30:32,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:32,120 INFO L225 Difference]: With dead ends: 86 [2021-10-21 20:30:32,120 INFO L226 Difference]: Without dead ends: 84 [2021-10-21 20:30:32,121 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:30:32,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-21 20:30:32,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 49. [2021-10-21 20:30:32,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.225) internal successors, (49), 48 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:32,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2021-10-21 20:30:32,132 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 9 [2021-10-21 20:30:32,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:32,133 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2021-10-21 20:30:32,133 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) [2021-10-21 20:30:32,133 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2021-10-21 20:30:32,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 20:30:32,134 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:32,134 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:32,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:30:32,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:32,355 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:32,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:32,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-10-21 20:30:32,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:32,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741194888] [2021-10-21 20:30:32,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:32,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:32,369 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:30:32,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [109747982] [2021-10-21 20:30:32,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:32,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:32,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:32,377 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:30:32,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 20:30:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:32,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:30:32,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:30:32,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:32,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:32,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741194888] [2021-10-21 20:30:32,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:30:32,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109747982] [2021-10-21 20:30:32,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109747982] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:32,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:32,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:30:32,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258178557] [2021-10-21 20:30:32,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:30:32,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:32,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:30:32,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:30:32,556 INFO L87 Difference]: Start difference. First operand 49 states and 49 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) [2021-10-21 20:30:32,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:32,701 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2021-10-21 20:30:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:30:32,704 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 [2021-10-21 20:30:32,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:32,710 INFO L225 Difference]: With dead ends: 84 [2021-10-21 20:30:32,711 INFO L226 Difference]: Without dead ends: 80 [2021-10-21 20:30:32,712 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:30:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-21 20:30:32,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 60. [2021-10-21 20:30:32,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 59 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) [2021-10-21 20:30:32,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2021-10-21 20:30:32,738 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 11 [2021-10-21 20:30:32,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:32,739 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2021-10-21 20:30:32,739 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) [2021-10-21 20:30:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2021-10-21 20:30:32,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 20:30:32,740 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:32,740 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:32,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:30:32,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:32,955 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:32,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:32,955 INFO L82 PathProgramCache]: Analyzing trace with hash -750282760, now seen corresponding path program 1 times [2021-10-21 20:30:32,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:32,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171302278] [2021-10-21 20:30:32,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:32,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:32,968 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:30:32,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [214150418] [2021-10-21 20:30:32,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:32,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:32,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:32,970 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:30:32,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 20:30:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:33,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:30:33,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:30:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:33,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:33,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171302278] [2021-10-21 20:30:33,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:30:33,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214150418] [2021-10-21 20:30:33,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214150418] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:33,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:33,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:30:33,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577595246] [2021-10-21 20:30:33,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:30:33,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:33,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:30:33,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:30:33,231 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:33,349 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2021-10-21 20:30:33,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:30:33,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2021-10-21 20:30:33,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:33,354 INFO L225 Difference]: With dead ends: 81 [2021-10-21 20:30:33,355 INFO L226 Difference]: Without dead ends: 57 [2021-10-21 20:30:33,356 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:30:33,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-21 20:30:33,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2021-10-21 20:30:33,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 55 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-10-21 20:30:33,385 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 13 [2021-10-21 20:30:33,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:33,385 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-10-21 20:30:33,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:33,386 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-10-21 20:30:33,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 20:30:33,386 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:33,387 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:33,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-21 20:30:33,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:33,588 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:33,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:33,589 INFO L82 PathProgramCache]: Analyzing trace with hash 41188983, now seen corresponding path program 1 times [2021-10-21 20:30:33,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:33,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619317169] [2021-10-21 20:30:33,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:33,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:33,620 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:30:33,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [503880344] [2021-10-21 20:30:33,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:33,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:33,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:33,622 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:30:33,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 20:30:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:33,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 20:30:33,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:30:34,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:34,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:34,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619317169] [2021-10-21 20:30:34,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:30:34,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503880344] [2021-10-21 20:30:34,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503880344] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:30:34,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:30:34,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-10-21 20:30:34,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499017440] [2021-10-21 20:30:34,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:30:34,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:34,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:30:34,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:30:34,064 INFO L87 Difference]: Start difference. First operand 56 states and 56 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) [2021-10-21 20:30:34,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:34,199 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2021-10-21 20:30:34,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:30:34,199 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 [2021-10-21 20:30:34,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:34,200 INFO L225 Difference]: With dead ends: 97 [2021-10-21 20:30:34,200 INFO L226 Difference]: Without dead ends: 95 [2021-10-21 20:30:34,201 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.1ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:30:34,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-21 20:30:34,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 60. [2021-10-21 20:30:34,209 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) [2021-10-21 20:30:34,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2021-10-21 20:30:34,210 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 20 [2021-10-21 20:30:34,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:34,210 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2021-10-21 20:30:34,211 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) [2021-10-21 20:30:34,211 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2021-10-21 20:30:34,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 20:30:34,211 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:34,212 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:34,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-21 20:30:34,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:34,413 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:34,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:34,413 INFO L82 PathProgramCache]: Analyzing trace with hash 928063098, now seen corresponding path program 1 times [2021-10-21 20:30:34,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:34,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819339867] [2021-10-21 20:30:34,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:34,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:34,423 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:30:34,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [140159784] [2021-10-21 20:30:34,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:34,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:34,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:34,425 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:30:34,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 20:30:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:34,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 20:30:34,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:30:34,704 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:34,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:34,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819339867] [2021-10-21 20:30:34,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:30:34,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140159784] [2021-10-21 20:30:34,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140159784] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:30:34,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:30:34,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-10-21 20:30:34,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139477660] [2021-10-21 20:30:34,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:30:34,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:34,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:30:34,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:30:34,708 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) [2021-10-21 20:30:34,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:34,823 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2021-10-21 20:30:34,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:30:34,825 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 [2021-10-21 20:30:34,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:34,826 INFO L225 Difference]: With dead ends: 95 [2021-10-21 20:30:34,826 INFO L226 Difference]: Without dead ends: 93 [2021-10-21 20:30:34,826 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 26.8ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:30:34,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-21 20:30:34,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 62. [2021-10-21 20:30:34,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.169811320754717) internal successors, (62), 61 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:34,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2021-10-21 20:30:34,835 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 22 [2021-10-21 20:30:34,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:34,836 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2021-10-21 20:30:34,836 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) [2021-10-21 20:30:34,836 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2021-10-21 20:30:34,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 20:30:34,837 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:34,837 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:34,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:30:35,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:35,043 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:35,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:35,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1484403939, now seen corresponding path program 1 times [2021-10-21 20:30:35,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:35,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299353771] [2021-10-21 20:30:35,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:35,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:35,069 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:30:35,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1115160879] [2021-10-21 20:30:35,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:35,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:35,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:35,076 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:30:35,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 20:30:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:35,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 20:30:35,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:30:35,405 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:35,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:35,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299353771] [2021-10-21 20:30:35,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:30:35,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115160879] [2021-10-21 20:30:35,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115160879] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:30:35,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:30:35,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-10-21 20:30:35,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554242385] [2021-10-21 20:30:35,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:30:35,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:35,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:30:35,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:30:35,408 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:35,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:35,533 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2021-10-21 20:30:35,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:30:35,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2021-10-21 20:30:35,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:35,535 INFO L225 Difference]: With dead ends: 93 [2021-10-21 20:30:35,535 INFO L226 Difference]: Without dead ends: 87 [2021-10-21 20:30:35,536 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 29.1ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:30:35,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-21 20:30:35,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 77. [2021-10-21 20:30:35,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 68 states have (on average 1.2058823529411764) internal successors, (82), 76 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:35,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2021-10-21 20:30:35,546 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 24 [2021-10-21 20:30:35,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:35,547 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2021-10-21 20:30:35,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2021-10-21 20:30:35,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 20:30:35,548 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:35,548 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:35,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:30:35,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-21 20:30:35,767 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:35,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:35,767 INFO L82 PathProgramCache]: Analyzing trace with hash -582886304, now seen corresponding path program 1 times [2021-10-21 20:30:35,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:35,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496547401] [2021-10-21 20:30:35,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:35,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:35,788 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:30:35,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1799435397] [2021-10-21 20:30:35,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:35,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:35,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:35,789 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:30:35,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 20:30:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:35,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 20:30:35,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:30:36,092 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:36,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:36,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496547401] [2021-10-21 20:30:36,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:30:36,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799435397] [2021-10-21 20:30:36,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799435397] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:30:36,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:30:36,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-10-21 20:30:36,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141318442] [2021-10-21 20:30:36,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:30:36,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:36,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:30:36,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:30:36,095 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:36,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:36,315 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2021-10-21 20:30:36,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:30:36,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2021-10-21 20:30:36,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:36,317 INFO L225 Difference]: With dead ends: 88 [2021-10-21 20:30:36,317 INFO L226 Difference]: Without dead ends: 82 [2021-10-21 20:30:36,317 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 26.1ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:30:36,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-21 20:30:36,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2021-10-21 20:30:36,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 74 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:36,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2021-10-21 20:30:36,326 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 26 [2021-10-21 20:30:36,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:36,327 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2021-10-21 20:30:36,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:36,327 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2021-10-21 20:30:36,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-21 20:30:36,328 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:36,328 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:36,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:30:36,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:36,547 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:36,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:36,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1813911283, now seen corresponding path program 1 times [2021-10-21 20:30:36,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:36,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077470204] [2021-10-21 20:30:36,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:36,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:36,560 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:30:36,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888608299] [2021-10-21 20:30:36,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:36,561 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:36,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:36,562 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:30:36,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 20:30:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:36,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 20:30:36,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:30:37,135 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:37,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:37,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077470204] [2021-10-21 20:30:37,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:30:37,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888608299] [2021-10-21 20:30:37,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888608299] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:30:37,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:30:37,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-21 20:30:37,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820451812] [2021-10-21 20:30:37,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:30:37,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:37,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:30:37,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:30:37,138 INFO L87 Difference]: Start difference. First operand 75 states and 78 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) [2021-10-21 20:30:37,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:37,312 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2021-10-21 20:30:37,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:30:37,317 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 [2021-10-21 20:30:37,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:37,318 INFO L225 Difference]: With dead ends: 81 [2021-10-21 20:30:37,319 INFO L226 Difference]: Without dead ends: 79 [2021-10-21 20:30:37,319 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 69.8ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:30:37,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-10-21 20:30:37,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 75. [2021-10-21 20:30:37,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 66 states have (on average 1.1666666666666667) internal successors, (77), 74 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:37,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions. [2021-10-21 20:30:37,327 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 31 [2021-10-21 20:30:37,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:37,327 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions. [2021-10-21 20:30:37,328 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) [2021-10-21 20:30:37,328 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2021-10-21 20:30:37,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-21 20:30:37,329 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:37,329 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:37,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:30:37,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-21 20:30:37,530 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:37,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:37,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1811048370, now seen corresponding path program 2 times [2021-10-21 20:30:37,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:37,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623040241] [2021-10-21 20:30:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:37,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:37,546 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:30:37,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [361019125] [2021-10-21 20:30:37,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:30:37,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:37,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:37,551 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:30:37,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 20:30:37,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:30:37,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:30:37,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-21 20:30:37,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:30:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:38,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:38,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623040241] [2021-10-21 20:30:38,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:30:38,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361019125] [2021-10-21 20:30:38,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361019125] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:30:38,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:30:38,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-21 20:30:38,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275354152] [2021-10-21 20:30:38,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:30:38,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:38,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:30:38,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:30:38,135 INFO L87 Difference]: Start difference. First operand 75 states and 77 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) [2021-10-21 20:30:38,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:38,362 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2021-10-21 20:30:38,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:30:38,363 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 [2021-10-21 20:30:38,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:38,364 INFO L225 Difference]: With dead ends: 120 [2021-10-21 20:30:38,364 INFO L226 Difference]: Without dead ends: 118 [2021-10-21 20:30:38,364 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 54.0ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:30:38,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-21 20:30:38,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 79. [2021-10-21 20:30:38,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 70 states have (on average 1.1571428571428573) internal successors, (81), 78 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:38,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 81 transitions. [2021-10-21 20:30:38,373 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 81 transitions. Word has length 31 [2021-10-21 20:30:38,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:38,373 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 81 transitions. [2021-10-21 20:30:38,374 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) [2021-10-21 20:30:38,374 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2021-10-21 20:30:38,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-21 20:30:38,375 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:38,376 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:38,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:30:38,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:38,603 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:38,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:38,603 INFO L82 PathProgramCache]: Analyzing trace with hash -587821098, now seen corresponding path program 1 times [2021-10-21 20:30:38,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:38,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098695749] [2021-10-21 20:30:38,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:38,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:38,615 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:30:38,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1211913945] [2021-10-21 20:30:38,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:38,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:38,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:38,617 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:30:38,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-21 20:30:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:30:38,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-21 20:30:38,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:30:39,336 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:39,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:39,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098695749] [2021-10-21 20:30:39,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:30:39,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211913945] [2021-10-21 20:30:39,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211913945] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:30:39,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:30:39,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-21 20:30:39,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389349535] [2021-10-21 20:30:39,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:30:39,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:39,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:30:39,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:30:39,339 INFO L87 Difference]: Start difference. First operand 79 states and 81 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:39,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:39,502 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2021-10-21 20:30:39,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:30:39,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 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 [2021-10-21 20:30:39,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:39,503 INFO L225 Difference]: With dead ends: 83 [2021-10-21 20:30:39,503 INFO L226 Difference]: Without dead ends: 81 [2021-10-21 20:30:39,504 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 62.7ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:30:39,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-10-21 20:30:39,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2021-10-21 20:30:39,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 70 states have (on average 1.1428571428571428) internal successors, (80), 78 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:39,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2021-10-21 20:30:39,512 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 33 [2021-10-21 20:30:39,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:39,512 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2021-10-21 20:30:39,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:39,512 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2021-10-21 20:30:39,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-21 20:30:39,514 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:39,514 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:39,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:30:39,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-21 20:30:39,743 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:39,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:39,743 INFO L82 PathProgramCache]: Analyzing trace with hash 955884789, now seen corresponding path program 2 times [2021-10-21 20:30:39,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:39,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898883446] [2021-10-21 20:30:39,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:39,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:39,764 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:30:39,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547564366] [2021-10-21 20:30:39,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:30:39,774 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:39,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:39,775 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:30:39,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-21 20:30:40,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:30:40,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:30:40,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-21 20:30:40,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:30:40,499 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:30:40,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:40,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898883446] [2021-10-21 20:30:40,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:30:40,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547564366] [2021-10-21 20:30:40,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547564366] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:30:40,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:30:40,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-21 20:30:40,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170015714] [2021-10-21 20:30:40,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 20:30:40,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:40,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:30:40,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:30:40,504 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:40,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:40,808 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2021-10-21 20:30:40,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:30:40,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 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 [2021-10-21 20:30:40,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:40,810 INFO L225 Difference]: With dead ends: 116 [2021-10-21 20:30:40,810 INFO L226 Difference]: Without dead ends: 104 [2021-10-21 20:30:40,811 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 97.5ms TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:30:40,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-10-21 20:30:40,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 73. [2021-10-21 20:30:40,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 64 states have (on average 1.140625) internal successors, (73), 72 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) [2021-10-21 20:30:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2021-10-21 20:30:40,818 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 33 [2021-10-21 20:30:40,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:40,818 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2021-10-21 20:30:40,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:40,820 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2021-10-21 20:30:40,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-21 20:30:40,821 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:30:40,821 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-21 20:30:40,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:30:41,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-21 20:30:41,035 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:30:41,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:30:41,035 INFO L82 PathProgramCache]: Analyzing trace with hash -517562664, now seen corresponding path program 2 times [2021-10-21 20:30:41,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:30:41,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143526735] [2021-10-21 20:30:41,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:30:41,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:30:41,047 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:30:41,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418224095] [2021-10-21 20:30:41,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:30:41,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:41,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:30:41,056 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:30:41,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-21 20:30:41,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-21 20:30:41,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:30:41,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 20:30:41,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:30:51,098 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-21 20:30:51,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:30:51,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143526735] [2021-10-21 20:30:51,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:30:51,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418224095] [2021-10-21 20:30:51,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418224095] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:30:51,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:30:51,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-21 20:30:51,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930908328] [2021-10-21 20:30:51,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 20:30:51,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:30:51,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:30:51,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:30:51,100 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:31:39,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:31:39,994 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2021-10-21 20:31:39,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:31:39,994 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 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 35 [2021-10-21 20:31:39,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:31:39,995 INFO L225 Difference]: With dead ends: 73 [2021-10-21 20:31:39,995 INFO L226 Difference]: Without dead ends: 55 [2021-10-21 20:31:39,996 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 10792.8ms TimeCoverageRelationStatistics Valid=48, Invalid=133, Unknown=1, NotChecked=0, Total=182 [2021-10-21 20:31:39,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-21 20:31:40,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-10-21 20:31:40,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 52 states have (on average 1.0576923076923077) 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) [2021-10-21 20:31:40,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2021-10-21 20:31:40,007 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 35 [2021-10-21 20:31:40,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:31:40,007 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2021-10-21 20:31:40,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:31:40,008 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2021-10-21 20:31:40,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-21 20:31:40,008 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:31:40,009 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:31:40,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:31:40,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-21 20:31:40,214 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-10-21 20:31:40,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:31:40,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1745507624, now seen corresponding path program 2 times [2021-10-21 20:31:40,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:31:40,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817611921] [2021-10-21 20:31:40,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:31:40,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:31:40,237 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:31:40,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80799110] [2021-10-21 20:31:40,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:31:40,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:31:40,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:31:40,249 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:31:40,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-21 20:31:40,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:31:40,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:31:40,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-21 20:31:40,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:31:41,535 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:31:41,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:31:41,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817611921] [2021-10-21 20:31:41,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:31:41,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80799110] [2021-10-21 20:31:41,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80799110] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:31:41,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:31:41,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-21 20:31:41,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405773120] [2021-10-21 20:31:41,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 20:31:41,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:31:41,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:31:41,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:31:41,539 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:31:41,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:31:41,829 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2021-10-21 20:31:41,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:31:41,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 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 [2021-10-21 20:31:41,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:31:41,830 INFO L225 Difference]: With dead ends: 71 [2021-10-21 20:31:41,830 INFO L226 Difference]: Without dead ends: 61 [2021-10-21 20:31:41,831 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 175.9ms TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-10-21 20:31:41,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-21 20:31:41,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2021-10-21 20:31:41,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 57 states have (on average 1.0526315789473684) 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) [2021-10-21 20:31:41,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2021-10-21 20:31:41,845 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 42 [2021-10-21 20:31:41,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:31:41,845 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2021-10-21 20:31:41,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:31:41,845 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2021-10-21 20:31:41,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-21 20:31:41,847 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:31:41,847 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-10-21 20:31:41,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-21 20:31:42,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-21 20:31:42,053 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)] === [2021-10-21 20:31:42,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:31:42,053 INFO L82 PathProgramCache]: Analyzing trace with hash -851717222, now seen corresponding path program 3 times [2021-10-21 20:31:42,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:31:42,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330084467] [2021-10-21 20:31:42,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:31:42,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:31:42,083 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:31:42,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238261898] [2021-10-21 20:31:42,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:31:42,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:31:42,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:31:42,086 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:31:42,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-21 20:31:42,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-21 20:31:42,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:31:42,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-21 20:31:42,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:31:43,233 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-21 20:31:43,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:31:43,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330084467] [2021-10-21 20:31:43,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:31:43,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238261898] [2021-10-21 20:31:43,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238261898] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:31:43,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:31:43,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-10-21 20:31:43,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505916964] [2021-10-21 20:31:43,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-21 20:31:43,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:31:43,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 20:31:43,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-21 20:31:43,236 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 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) [2021-10-21 20:31:47,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:31:47,734 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2021-10-21 20:31:47,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:31:47,735 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 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 44 [2021-10-21 20:31:47,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:31:47,735 INFO L225 Difference]: With dead ends: 60 [2021-10-21 20:31:47,735 INFO L226 Difference]: Without dead ends: 58 [2021-10-21 20:31:47,736 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 254.2ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-21 20:31:47,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-21 20:31:47,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-10-21 20:31:47,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 1.0357142857142858) 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) [2021-10-21 20:31:47,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2021-10-21 20:31:47,748 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 44 [2021-10-21 20:31:47,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:31:47,749 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2021-10-21 20:31:47,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 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) [2021-10-21 20:31:47,749 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2021-10-21 20:31:47,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-21 20:31:47,750 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:31:47,750 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:31:47,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:31:47,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:31:47,955 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)] === [2021-10-21 20:31:47,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:31:47,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1402807763, now seen corresponding path program 3 times [2021-10-21 20:31:47,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:31:47,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274250347] [2021-10-21 20:31:47,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:31:47,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:31:47,973 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:31:47,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1096674122] [2021-10-21 20:31:47,974 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:31:47,974 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:31:47,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:31:47,975 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:31:47,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-21 20:31:49,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-21 20:31:49,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:31:49,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-21 20:31:49,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:31:56,801 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-21 20:31:56,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:31:56,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274250347] [2021-10-21 20:31:56,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:31:56,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096674122] [2021-10-21 20:31:56,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096674122] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:31:56,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:31:56,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2021-10-21 20:31:56,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661771804] [2021-10-21 20:31:56,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-21 20:31:56,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:31:56,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-21 20:31:56,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2021-10-21 20:31:56,804 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 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) [2021-10-21 20:32:15,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:32:15,807 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-10-21 20:32:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-21 20:32:15,808 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 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 53 [2021-10-21 20:32:15,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:32:15,808 INFO L225 Difference]: With dead ends: 58 [2021-10-21 20:32:15,808 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 20:32:15,810 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 11330.2ms TimeCoverageRelationStatistics Valid=236, Invalid=632, Unknown=2, NotChecked=0, Total=870 [2021-10-21 20:32:15,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 20:32:15,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 20:32:15,810 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) [2021-10-21 20:32:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:32:15,810 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2021-10-21 20:32:15,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:32:15,810 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:32:15,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 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) [2021-10-21 20:32:15,811 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:32:15,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 20:32:15,813 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:32:15,813 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:32:15,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:32:15,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:32:15,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:32:15,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:32:15,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:32:15,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:32:15,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:32:15,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:32:15,815 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:32:15,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:32:16,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-21 20:32:16,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 20:32:16,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:16,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:16,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:16,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:16,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:16,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:16,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:16,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:16,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:16,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:16,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:16,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:16,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:32:27,468 WARN L207 SmtUtils]: Spent 6.51 s on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2021-10-21 20:32:39,539 WARN L207 SmtUtils]: Spent 8.05 s on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-10-21 20:32:54,376 WARN L207 SmtUtils]: Spent 12.56 s on a formula simplification. DAG size of input: 103 DAG size of output: 81 [2021-10-21 20:32:57,535 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:32:57,536 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:32:57,536 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-10-21 20:32:57,536 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:32:57,536 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 20:32:57,536 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 20:32:57,536 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-21 20:32:57,536 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:32:57,536 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:32:57,537 INFO L860 garLoopResultBuilder]: At program point L55(lines 22 56) the Hoare annotation is: true [2021-10-21 20:32:57,537 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:32:57,537 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:32:57,537 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= 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_~a~0 50) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) (<= 0 ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)) (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0))) [2021-10-21 20:32:57,537 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:32:57,537 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~x~0 (let ((.cse0 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (* .cse0 .cse0 .cse0))) (= 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_~a~0 50) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) (<= 0 ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)) (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0))) [2021-10-21 20:32:57,537 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:32:57,538 INFO L853 garLoopResultBuilder]: At program point L15-8(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~a~0 50) (= ULTIMATE.start_main_~y~0 (let ((.cse0 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (+ (* 3 (* .cse0 .cse0)) (* 3 .cse0) 1))) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) (<= 0 ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)) (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0))) [2021-10-21 20:32:57,538 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:32:57,538 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ 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))) (<= ULTIMATE.start_main_~a~0 50) (= ULTIMATE.start_main_~y~0 (let ((.cse0 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (+ (* 3 (* .cse0 .cse0)) (* 3 .cse0) 1))) (= (mod (* ULTIMATE.start_main_~z~0 5) (- 6)) 0) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) (<= 0 ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0))) [2021-10-21 20:32:57,538 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:32:57,538 INFO L853 garLoopResultBuilder]: At program point L15-14(lines 39 40) the Hoare annotation is: (and (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ 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))) (<= ULTIMATE.start_main_~a~0 50) (= ULTIMATE.start_main_~y~0 (let ((.cse0 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (+ (* 3 (* .cse0 .cse0)) (* 3 .cse0) 1))) (= (mod (* ULTIMATE.start_main_~z~0 5) (- 6)) 0) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) (<= 0 ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0))) [2021-10-21 20:32:57,538 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:32:57,538 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 20:32:57,538 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (let ((.cse1 (<= 0 ULTIMATE.start_main_~a~0)) (.cse3 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)))) (or (and (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~x~0 (let ((.cse0 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (* .cse0 .cse0 .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_~a~0 50) .cse1 (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)) (exists ((ULTIMATE.start_main_~n~0 Int)) (and (= (+ (* 36 ULTIMATE.start_main_~n~0) (* 36 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)) (* 6 ULTIMATE.start_main_~z~0)) (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~z~0)) (let ((.cse2 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)))) (or (and (= 0 ULTIMATE.start___VERIFIER_assert_~cond) (not .cse2)) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2))) (<= 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)))) (and (<= 1 ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~x~0 8) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< ULTIMATE.start_main_~a~0 2) (= 19 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~z~0 18) .cse3) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~y~0 7) (< ULTIMATE.start_main_~a~0 1) (= ULTIMATE.start_main_~z~0 12) .cse1 (= ULTIMATE.start_main_~n~0 1)) (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)))) [2021-10-21 20:32:57,538 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:32:57,539 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))) (.cse3 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6))) (.cse4 (= ULTIMATE.start_main_~y~0 (let ((.cse6 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (+ (* 3 (* .cse6 .cse6)) (* 3 .cse6) 1)))) (.cse1 (<= 0 ULTIMATE.start_main_~a~0))) (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 (<= 1 ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~x~0 8) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< ULTIMATE.start_main_~a~0 2) .cse4 (= ULTIMATE.start_main_~z~0 18) .cse3) (and (= ULTIMATE.start_main_~x~0 0) .cse0 (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~z~0 6) .cse2 .cse3) (and (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= (+ 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))) (<= ULTIMATE.start_main_~a~0 50) .cse4 .cse1 (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)) (exists ((ULTIMATE.start_main_~n~0 Int)) (and (= (+ (* 36 ULTIMATE.start_main_~n~0) (* 36 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)) (* 6 ULTIMATE.start_main_~z~0)) (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~z~0)) (let ((.cse5 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)))) (or (and (= 0 ULTIMATE.start___VERIFIER_assert_~cond) (not .cse5)) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse5))) (<= 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)))))) [2021-10-21 20:32:57,539 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:32:57,539 INFO L857 garLoopResultBuilder]: For program point L15-21(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:32:57,539 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:32:57,539 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)))) [2021-10-21 20:32:57,540 INFO L857 garLoopResultBuilder]: For program point L15-24(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:32:57,540 INFO L853 garLoopResultBuilder]: At program point L15-26(lines 14 20) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)))) (or (and (= ULTIMATE.start_main_~x~0 0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~z~0 6) .cse0) (and (= ULTIMATE.start_main_~x~0 (let ((.cse1 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (* .cse1 .cse1 .cse1))) (= 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)) .cse0) (and (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~y~0 7) (= ULTIMATE.start_main_~z~0 12) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~n~0 1)))) [2021-10-21 20:32:57,540 INFO L857 garLoopResultBuilder]: For program point L15-27(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:32:57,540 INFO L853 garLoopResultBuilder]: At program point L15-29(lines 14 20) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6)))) (or (and (= ULTIMATE.start_main_~x~0 0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~z~0 6) .cse0) (and (= ULTIMATE.start_main_~x~0 (let ((.cse1 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (* .cse1 .cse1 .cse1))) (= 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)) .cse0) (and (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~z~0 12) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) .cse0))) [2021-10-21 20:32:57,540 INFO L857 garLoopResultBuilder]: For program point L15-30(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:32:57,540 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:32:57,541 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:32:57,541 INFO L860 garLoopResultBuilder]: At program point L15-32(lines 14 20) the Hoare annotation is: true [2021-10-21 20:32:57,541 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:32:57,541 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:32:57,541 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:32:57,541 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:32:57,542 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:32:57,542 INFO L857 garLoopResultBuilder]: For program point L16-7(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:32:57,542 INFO L857 garLoopResultBuilder]: For program point L16-8(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:32:57,542 INFO L857 garLoopResultBuilder]: For program point L16-9(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:32:57,542 INFO L857 garLoopResultBuilder]: For program point L16-10(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:32:57,542 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 20:32:57,543 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:32:57,543 INFO L853 garLoopResultBuilder]: At program point L33-2(lines 33 46) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (<= ULTIMATE.start_main_~a~0 50)) (.cse2 (= ULTIMATE.start_main_~y~0 (let ((.cse6 (div (+ 6 (* ULTIMATE.start_main_~z~0 (- 1))) (- 6)))) (+ (* 3 (* .cse6 .cse6)) (* 3 .cse6) 1)))) (.cse3 (<= 0 ULTIMATE.start_main_~a~0)) (.cse4 (= ULTIMATE.start_main_~z~0 (+ (* 6 ULTIMATE.start_main_~n~0) 6))) (.cse5 (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~n~0)))) (or (and .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse1 .cse2 (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~a~0 1)) .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~n~0 0)))) [2021-10-21 20:32:57,543 INFO L857 garLoopResultBuilder]: For program point L33-3(lines 33 46) no Hoare annotation was computed. [2021-10-21 20:32:57,543 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:32:57,543 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:32:57,548 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:32:57,557 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,558 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,558 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,558 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,559 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,559 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,559 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,559 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,559 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,560 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,567 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,570 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,582 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,582 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,585 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,585 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,585 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:32:57 BoogieIcfgContainer [2021-10-21 20:32:57,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:32:57,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:32:57,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:32:57,590 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:32:57,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:30:30" (3/4) ... [2021-10-21 20:32:57,594 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 20:32:57,606 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-21 20:32:57,607 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 20:32:57,607 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:32:57,608 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:32:57,631 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((cond == 1 && x == (6 + z * -1) / -6 * ((6 + z * -1) / -6) * ((6 + z * -1) / -6)) && y == 3 * n + 3 * (n * n) + 1) && a <= 50) && 0 <= a) && x == n * n * n) && (\exists ULTIMATE.start_main_~n~0 : int :: (((36 * ULTIMATE.start_main_~n~0 + 36 * (ULTIMATE.start_main_~n~0 * ULTIMATE.start_main_~n~0) + 6 * z == z * z && ((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)) || ((((((1 <= a && x == 8) && 1 == cond) && a < 2) && 19 == y) && z == 18) && z == 6 * n + 6)) || ((((((1 <= cond && x == 1) && y == 7) && a < 1) && z == 12) && 0 <= a) && n == 1)) || ((((x == 0 && y == 1) && !(0 == cond)) && z == 6 * n + 6) && n == 0) [2021-10-21 20:32:57,632 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((1 <= cond && x == 1) && y == 7) && a < 1) && 0 <= a) && !(0 == cond)) && z == 6 * n + 6) && n == 1) || ((((((1 <= a && x == 8) && 1 == cond) && a < 2) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && z == 18) && z == 6 * n + 6)) || (((((x == 0 && 1 <= cond) && y == 1) && z == 6) && !(0 == cond)) && z == 6 * n + 6)) || ((((((cond == 1 && 6 + 12 * y + 18 * x == z * y + 2 * z) && a <= 50) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && 0 <= a) && x == n * n * n) && (\exists ULTIMATE.start_main_~n~0 : int :: (((36 * ULTIMATE.start_main_~n~0 + 36 * (ULTIMATE.start_main_~n~0 * ULTIMATE.start_main_~n~0) + 6 * z == z * z && ((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)) [2021-10-21 20:32:57,651 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:32:57,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:32:57,653 INFO L168 Benchmark]: Toolchain (without parser) took 147666.76 ms. Allocated memory was 100.7 MB in the beginning and 142.6 MB in the end (delta: 41.9 MB). Free memory was 61.8 MB in the beginning and 83.5 MB in the end (delta: -21.6 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:32:57,653 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory is still 78.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:32:57,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.37 ms. Allocated memory is still 100.7 MB. Free memory was 61.6 MB in the beginning and 75.3 MB in the end (delta: -13.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:32:57,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.43 ms. Allocated memory is still 100.7 MB. Free memory was 75.3 MB in the beginning and 73.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:32:57,654 INFO L168 Benchmark]: Boogie Preprocessor took 28.99 ms. Allocated memory is still 100.7 MB. Free memory was 73.7 MB in the beginning and 72.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:32:57,655 INFO L168 Benchmark]: RCFGBuilder took 504.38 ms. Allocated memory is still 100.7 MB. Free memory was 72.4 MB in the beginning and 60.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:32:57,655 INFO L168 Benchmark]: TraceAbstraction took 146719.90 ms. Allocated memory was 100.7 MB in the beginning and 142.6 MB in the end (delta: 41.9 MB). Free memory was 60.2 MB in the beginning and 87.7 MB in the end (delta: -27.4 MB). Peak memory consumption was 68.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:32:57,656 INFO L168 Benchmark]: Witness Printer took 62.12 ms. Allocated memory is still 142.6 MB. Free memory was 86.6 MB in the beginning and 83.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:32:57,658 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory is still 78.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.37 ms. Allocated memory is still 100.7 MB. Free memory was 61.6 MB in the beginning and 75.3 MB in the end (delta: -13.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.43 ms. Allocated memory is still 100.7 MB. Free memory was 75.3 MB in the beginning and 73.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.99 ms. Allocated memory is still 100.7 MB. Free memory was 73.7 MB in the beginning and 72.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 504.38 ms. Allocated memory is still 100.7 MB. Free memory was 72.4 MB in the beginning and 60.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 146719.90 ms. Allocated memory was 100.7 MB in the beginning and 142.6 MB in the end (delta: 41.9 MB). Free memory was 60.2 MB in the beginning and 87.7 MB in the end (delta: -27.4 MB). Peak memory consumption was 68.0 MB. Max. memory is 16.1 GB. * Witness Printer took 62.12 ms. Allocated memory is still 142.6 MB. Free memory was 86.6 MB in the beginning and 83.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 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] - 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] - 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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, 53 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 146609.2ms, OverallIterations: 17, TraceHistogramMax: 4, EmptinessCheckTime: 24.8ms, AutomataDifference: 74831.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 41516.1ms, InitialAbstractionConstructionTime: 13.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 505 SDtfs, 568 SDslu, 1015 SDs, 0 SdLazy, 1658 SolverSat, 262 SolverUnsat, 15 SolverUnknown, 0 SolverNotchecked, 53134.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 476 GetRequests, 343 SyntacticMatches, 5 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 23028.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=11, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 200.0ms AutomataMinimizationTime, 17 MinimizatonAttempts, 217 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 56 NumberOfFragments, 1086 HoareAnnotationTreeSize, 13 FomulaSimplifications, 14069 FormulaSimplificationTreeSizeReduction, 336.1ms HoareSimplificationTime, 13 FomulaSimplificationsInter, 2763 FormulaSimplificationTreeSizeReductionInter, 41168.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 121.8ms SsaConstructionTime, 2241.7ms SatisfiabilityAnalysisTime, 21610.8ms InterpolantComputationTime, 441 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 424 ConstructedInterpolants, 1 QuantifiedInterpolants, 4298 SizeOfPredicates, 99 NumberOfNonLiveVariables, 1520 ConjunctsInSsa, 293 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 139/269 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 [2021-10-21 20:32:57,672 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,672 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,672 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,673 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,673 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,673 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,673 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,673 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,674 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,674 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,675 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,675 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] Derived loop invariant: ((((((((cond == 1 && x == (6 + z * -1) / -6 * ((6 + z * -1) / -6) * ((6 + z * -1) / -6)) && y == 3 * n + 3 * (n * n) + 1) && a <= 50) && 0 <= a) && x == n * n * n) && (\exists ULTIMATE.start_main_~n~0 : int :: (((36 * ULTIMATE.start_main_~n~0 + 36 * (ULTIMATE.start_main_~n~0 * ULTIMATE.start_main_~n~0) + 6 * z == z * z && ((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)) || ((((((1 <= a && x == 8) && 1 == cond) && a < 2) && 19 == y) && z == 18) && z == 6 * n + 6)) || ((((((1 <= cond && x == 1) && y == 7) && a < 1) && z == 12) && 0 <= a) && n == 1)) || ((((x == 0 && y == 1) && !(0 == cond)) && z == 6 * n + 6) && n == 0) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((cond == 1 && 1 == cond) && 6 + 12 * y + 18 * x == z * y + 2 * z) && a <= 50) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && z * 5 % -6 == 0) && n <= a + 1) && 0 <= a) && x == n * n * n - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((cond == 1 && 1 == cond) && 6 + 12 * y + 18 * x == z * y + 2 * z) && a <= 50) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && z * 5 % -6 == 0) && n <= a + 1) && 0 <= a) && x == n * n * n - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((cond == 1 && x == (6 + z * -1) / -6 * ((6 + z * -1) / -6) * ((6 + z * -1) / -6)) && 1 == cond) && y == 3 * n + 3 * (n * n) + 1) && a <= 50) && n <= a + 1) && 0 <= a) && z == 6 * n + 6) && x == n * n * n - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: (((((((cond == 1 && 1 == cond) && a <= 50) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && n <= a + 1) && 0 <= a) && z == 6 * n + 6) && x == n * n * n) || ((((((cond == 1 && a <= 50) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && 0 <= a) && z == 6 * n + 6) && x == n * n * n) && n == 0) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((cond == 1 && 1 == cond) && y == 3 * n + 3 * (n * n) + 1) && a <= 50) && n <= a + 1) && 0 <= a) && 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) || (((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)) || (((x == 1 && z == 12) && !(0 == cond)) && z == 6 * n + 6) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2021-10-21 20:32:57,683 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,683 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,683 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,683 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,683 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,685 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,685 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,686 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,686 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,686 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,686 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,687 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,687 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,687 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] [2021-10-21 20:32:57,687 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~n~0,QUANTIFIED] Derived loop invariant: (((((((((1 <= cond && x == 1) && y == 7) && a < 1) && 0 <= a) && !(0 == cond)) && z == 6 * n + 6) && n == 1) || ((((((1 <= a && x == 8) && 1 == cond) && a < 2) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && z == 18) && z == 6 * n + 6)) || (((((x == 0 && 1 <= cond) && y == 1) && z == 6) && !(0 == cond)) && z == 6 * n + 6)) || ((((((cond == 1 && 6 + 12 * y + 18 * x == z * y + 2 * z) && a <= 50) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && 0 <= a) && x == n * n * n) && (\exists ULTIMATE.start_main_~n~0 : int :: (((36 * ULTIMATE.start_main_~n~0 + 36 * (ULTIMATE.start_main_~n~0 * ULTIMATE.start_main_~n~0) + 6 * z == z * z && ((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)) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((cond == 1 && 1 == cond) && a <= 50) && y == 3 * ((6 + z * -1) / -6 * ((6 + z * -1) / -6)) + 3 * ((6 + z * -1) / -6) + 1) && n <= a + 1) && 0 <= a) && 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) || (((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)) || ((((x == 1 && y == 7) && z == 12) && !(0 == cond)) && n == 1) - 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! [2021-10-21 20:32:57,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f401b48a-604b-4ead-bf5c-93e3706d14a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...