./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 881c8a19bc7d985c1c357993fa89c98038c14e3d30b81b5db0457e690440ac95 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:45:28,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:45:28,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:45:28,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:45:28,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:45:28,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:45:28,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:45:28,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:45:28,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:45:28,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:45:28,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:45:28,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:45:28,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:45:28,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:45:28,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:45:28,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:45:28,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:45:28,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:45:28,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:45:28,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:45:28,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:45:28,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:45:28,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:45:28,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:45:28,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:45:28,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:45:28,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:45:28,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:45:28,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:45:28,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:45:28,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:45:28,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:45:28,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:45:28,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:45:28,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:45:28,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:45:28,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:45:28,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:45:28,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:45:28,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:45:28,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:45:28,288 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:45:28,332 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:45:28,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:45:28,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:45:28,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:45:28,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:45:28,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:45:28,342 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:45:28,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:45:28,343 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:45:28,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:45:28,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:45:28,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:45:28,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:45:28,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:45:28,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:45:28,345 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:45:28,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:45:28,346 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:45:28,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:45:28,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:45:28,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:45:28,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:45:28,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:45:28,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:45:28,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:45:28,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:45:28,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:45:28,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:45:28,349 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:45:28,350 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:45:28,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:45:28,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:45:28,351 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_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 881c8a19bc7d985c1c357993fa89c98038c14e3d30b81b5db0457e690440ac95 [2021-10-28 08:45:28,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:45:28,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:45:28,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:45:28,735 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:45:28,736 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:45:28,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c [2021-10-28 08:45:28,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/data/e6fd56be1/d2f52ece722e4ed28b10dd78c37f8183/FLAGf9be29850 [2021-10-28 08:45:29,316 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:45:29,317 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c [2021-10-28 08:45:29,332 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/data/e6fd56be1/d2f52ece722e4ed28b10dd78c37f8183/FLAGf9be29850 [2021-10-28 08:45:29,675 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/data/e6fd56be1/d2f52ece722e4ed28b10dd78c37f8183 [2021-10-28 08:45:29,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:45:29,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:45:29,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:45:29,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:45:29,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:45:29,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:45:29" (1/1) ... [2021-10-28 08:45:29,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2857d4de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29, skipping insertion in model container [2021-10-28 08:45:29,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:45:29" (1/1) ... [2021-10-28 08:45:29,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:45:29,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:45:29,890 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_c5b710a0-6064-44d8-b761-487a76018842/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c[576,589] [2021-10-28 08:45:29,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:45:29,934 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:45:29,947 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_c5b710a0-6064-44d8-b761-487a76018842/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c[576,589] [2021-10-28 08:45:29,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:45:29,969 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:45:29,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29 WrapperNode [2021-10-28 08:45:29,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:45:29,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:45:29,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:45:29,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:45:29,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29" (1/1) ... [2021-10-28 08:45:29,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29" (1/1) ... [2021-10-28 08:45:30,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:45:30,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:45:30,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:45:30,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:45:30,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29" (1/1) ... [2021-10-28 08:45:30,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29" (1/1) ... [2021-10-28 08:45:30,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29" (1/1) ... [2021-10-28 08:45:30,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29" (1/1) ... [2021-10-28 08:45:30,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29" (1/1) ... [2021-10-28 08:45:30,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29" (1/1) ... [2021-10-28 08:45:30,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29" (1/1) ... [2021-10-28 08:45:30,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:45:30,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:45:30,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:45:30,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:45:30,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29" (1/1) ... [2021-10-28 08:45:30,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:45:30,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:30,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:45:30,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:45:30,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:45:30,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:45:30,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:45:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:45:30,445 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:45:30,445 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-28 08:45:30,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:45:30 BoogieIcfgContainer [2021-10-28 08:45:30,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:45:30,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:45:30,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:45:30,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:45:30,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:45:29" (1/3) ... [2021-10-28 08:45:30,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e35262f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:45:30, skipping insertion in model container [2021-10-28 08:45:30,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:29" (2/3) ... [2021-10-28 08:45:30,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e35262f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:45:30, skipping insertion in model container [2021-10-28 08:45:30,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:45:30" (3/3) ... [2021-10-28 08:45:30,458 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound10.c [2021-10-28 08:45:30,464 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:45:30,465 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-28 08:45:30,518 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:45:30,525 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:45:30,526 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-28 08:45:30,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 42 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:30,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 08:45:30,566 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:30,566 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:30,567 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:30,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:30,572 INFO L85 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2021-10-28 08:45:30,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:30,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189549746] [2021-10-28 08:45:30,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:30,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:30,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:30,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189549746] [2021-10-28 08:45:30,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189549746] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:45:30,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:45:30,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:45:30,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023114722] [2021-10-28 08:45:30,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:45:30,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:30,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:45:30,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:45:30,858 INFO L87 Difference]: Start difference. First operand has 43 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 42 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:30,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:30,887 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2021-10-28 08:45:30,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:45:30,889 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-28 08:45:30,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:30,900 INFO L225 Difference]: With dead ends: 83 [2021-10-28 08:45:30,901 INFO L226 Difference]: Without dead ends: 39 [2021-10-28 08:45:30,905 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:45:30,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-28 08:45:30,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-28 08:45:30,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.25) internal successors, (40), 38 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:30,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2021-10-28 08:45:30,951 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 11 [2021-10-28 08:45:30,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:30,952 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2021-10-28 08:45:30,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:30,953 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2021-10-28 08:45:30,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 08:45:30,954 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:30,954 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:30,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:45:30,956 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:30,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:30,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2021-10-28 08:45:30,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:30,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982838411] [2021-10-28 08:45:30,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:30,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:31,001 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:31,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069602478] [2021-10-28 08:45:31,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:31,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:31,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:31,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:31,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:45:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:31,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 08:45:31,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:31,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:31,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982838411] [2021-10-28 08:45:31,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:31,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069602478] [2021-10-28 08:45:31,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069602478] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:45:31,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:45:31,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 08:45:31,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123636857] [2021-10-28 08:45:31,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:45:31,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:31,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:45:31,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:45:31,572 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:31,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:31,868 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2021-10-28 08:45:31,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:45:31,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-28 08:45:31,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:31,871 INFO L225 Difference]: With dead ends: 52 [2021-10-28 08:45:31,871 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 08:45:31,872 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:45:31,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 08:45:31,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2021-10-28 08:45:31,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 40 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) [2021-10-28 08:45:31,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2021-10-28 08:45:31,906 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 11 [2021-10-28 08:45:31,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:31,906 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2021-10-28 08:45:31,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:31,907 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2021-10-28 08:45:31,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 08:45:31,907 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:31,908 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:31,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:32,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:32,109 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:32,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2021-10-28 08:45:32,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:32,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004214581] [2021-10-28 08:45:32,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:32,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:32,129 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:32,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1040100208] [2021-10-28 08:45:32,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:32,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:32,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:32,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:32,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 08:45:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:32,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 08:45:32,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:32,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:32,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004214581] [2021-10-28 08:45:32,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:32,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040100208] [2021-10-28 08:45:32,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040100208] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:45:32,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:45:32,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 08:45:32,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133715649] [2021-10-28 08:45:32,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:45:32,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:32,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:45:32,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:45:32,481 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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) [2021-10-28 08:45:32,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:32,765 INFO L93 Difference]: Finished difference Result 69 states and 71 transitions. [2021-10-28 08:45:32,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:45:32,765 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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 [2021-10-28 08:45:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:32,767 INFO L225 Difference]: With dead ends: 69 [2021-10-28 08:45:32,767 INFO L226 Difference]: Without dead ends: 61 [2021-10-28 08:45:32,768 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:45:32,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-28 08:45:32,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2021-10-28 08:45:32,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 52 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:32,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2021-10-28 08:45:32,777 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 13 [2021-10-28 08:45:32,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:32,778 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2021-10-28 08:45:32,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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) [2021-10-28 08:45:32,778 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2021-10-28 08:45:32,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 08:45:32,779 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:32,780 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:32,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:32,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:33,000 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:33,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:33,000 INFO L85 PathProgramCache]: Analyzing trace with hash 916732292, now seen corresponding path program 1 times [2021-10-28 08:45:33,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:33,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335560043] [2021-10-28 08:45:33,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:33,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:33,019 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:33,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [164017515] [2021-10-28 08:45:33,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:33,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:33,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:33,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:33,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 08:45:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:33,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:45:33,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:33,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:33,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:33,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335560043] [2021-10-28 08:45:33,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:33,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164017515] [2021-10-28 08:45:33,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164017515] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:45:33,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:45:33,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:45:33,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971348745] [2021-10-28 08:45:33,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:45:33,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:33,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:45:33,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:45:33,196 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:33,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:33,309 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2021-10-28 08:45:33,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:45:33,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2021-10-28 08:45:33,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:33,313 INFO L225 Difference]: With dead ends: 95 [2021-10-28 08:45:33,313 INFO L226 Difference]: Without dead ends: 89 [2021-10-28 08:45:33,314 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:45:33,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-28 08:45:33,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 72. [2021-10-28 08:45:33,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 71 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) [2021-10-28 08:45:33,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2021-10-28 08:45:33,333 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 16 [2021-10-28 08:45:33,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:33,333 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2021-10-28 08:45:33,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:33,334 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2021-10-28 08:45:33,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 08:45:33,334 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:33,334 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:33,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:33,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-10-28 08:45:33,535 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:33,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:33,536 INFO L85 PathProgramCache]: Analyzing trace with hash 2015957290, now seen corresponding path program 1 times [2021-10-28 08:45:33,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:33,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522406750] [2021-10-28 08:45:33,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:33,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:33,552 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:33,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1620805755] [2021-10-28 08:45:33,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:33,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:33,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:33,554 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:33,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 08:45:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:33,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:45:33,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:33,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:33,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522406750] [2021-10-28 08:45:33,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:33,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620805755] [2021-10-28 08:45:33,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620805755] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:45:33,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:45:33,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:45:33,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838653140] [2021-10-28 08:45:33,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:45:33,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:33,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:45:33,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:45:33,861 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:33,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:33,987 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2021-10-28 08:45:33,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:45:33,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-28 08:45:33,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:33,993 INFO L225 Difference]: With dead ends: 72 [2021-10-28 08:45:33,995 INFO L226 Difference]: Without dead ends: 70 [2021-10-28 08:45:33,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:45:33,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-28 08:45:34,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-10-28 08:45:34,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 64 states have (on average 1.203125) internal successors, (77), 69 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) [2021-10-28 08:45:34,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2021-10-28 08:45:34,017 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 20 [2021-10-28 08:45:34,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:34,018 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2021-10-28 08:45:34,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:34,018 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2021-10-28 08:45:34,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 08:45:34,019 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:34,020 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:34,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:34,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:34,231 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:34,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:34,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1552659725, now seen corresponding path program 1 times [2021-10-28 08:45:34,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:34,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362852563] [2021-10-28 08:45:34,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:34,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:34,247 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:34,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1459514847] [2021-10-28 08:45:34,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:34,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:34,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:34,249 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:34,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 08:45:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:34,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 08:45:34,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:34,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:34,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:34,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362852563] [2021-10-28 08:45:34,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:34,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459514847] [2021-10-28 08:45:34,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459514847] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:34,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:45:34,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 08:45:34,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939198414] [2021-10-28 08:45:34,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:45:34,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:34,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:45:34,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:45:34,560 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:34,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:34,824 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2021-10-28 08:45:34,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:45:34,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-28 08:45:34,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:34,829 INFO L225 Difference]: With dead ends: 123 [2021-10-28 08:45:34,830 INFO L226 Difference]: Without dead ends: 117 [2021-10-28 08:45:34,831 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:45:34,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-28 08:45:34,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 88. [2021-10-28 08:45:34,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.1951219512195121) internal successors, (98), 87 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:34,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2021-10-28 08:45:34,855 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 25 [2021-10-28 08:45:34,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:34,856 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2021-10-28 08:45:34,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:34,856 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2021-10-28 08:45:34,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 08:45:34,858 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:34,858 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:34,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:35,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:35,084 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:35,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:35,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1755069467, now seen corresponding path program 1 times [2021-10-28 08:45:35,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:35,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256654551] [2021-10-28 08:45:35,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:35,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:35,098 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:35,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1500566388] [2021-10-28 08:45:35,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:35,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:35,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:35,100 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:35,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 08:45:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:35,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 08:45:35,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:35,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:35,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:35,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256654551] [2021-10-28 08:45:35,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:35,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500566388] [2021-10-28 08:45:35,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500566388] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:35,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:45:35,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 08:45:35,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16999247] [2021-10-28 08:45:35,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:45:35,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:35,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:45:35,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:45:35,477 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 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) [2021-10-28 08:45:35,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:35,621 INFO L93 Difference]: Finished difference Result 140 states and 153 transitions. [2021-10-28 08:45:35,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:45:35,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 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 [2021-10-28 08:45:35,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:35,623 INFO L225 Difference]: With dead ends: 140 [2021-10-28 08:45:35,623 INFO L226 Difference]: Without dead ends: 132 [2021-10-28 08:45:35,624 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:45:35,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-28 08:45:35,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 101. [2021-10-28 08:45:35,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 95 states have (on average 1.1789473684210525) internal successors, (112), 100 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 112 transitions. [2021-10-28 08:45:35,640 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 112 transitions. Word has length 26 [2021-10-28 08:45:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:35,640 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 112 transitions. [2021-10-28 08:45:35,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 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) [2021-10-28 08:45:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 112 transitions. [2021-10-28 08:45:35,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 08:45:35,642 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:35,642 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:35,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:35,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:35,852 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:35,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:35,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1828677220, now seen corresponding path program 2 times [2021-10-28 08:45:35,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:35,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288533412] [2021-10-28 08:45:35,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:35,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:35,867 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:35,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1956104340] [2021-10-28 08:45:35,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:45:35,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:35,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:35,869 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:35,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 08:45:36,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:45:36,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:36,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 08:45:36,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:36,323 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:36,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:36,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288533412] [2021-10-28 08:45:36,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:36,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956104340] [2021-10-28 08:45:36,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956104340] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:36,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:45:36,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-28 08:45:36,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119305467] [2021-10-28 08:45:36,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:45:36,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:36,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:45:36,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:45:36,327 INFO L87 Difference]: Start difference. First operand 101 states and 112 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:36,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:36,738 INFO L93 Difference]: Finished difference Result 168 states and 181 transitions. [2021-10-28 08:45:36,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:45:36,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-28 08:45:36,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:36,741 INFO L225 Difference]: With dead ends: 168 [2021-10-28 08:45:36,741 INFO L226 Difference]: Without dead ends: 162 [2021-10-28 08:45:36,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:45:36,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-28 08:45:36,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 119. [2021-10-28 08:45:36,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 113 states have (on average 1.176991150442478) internal successors, (133), 118 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:36,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2021-10-28 08:45:36,763 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 34 [2021-10-28 08:45:36,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:36,764 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2021-10-28 08:45:36,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:36,764 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2021-10-28 08:45:36,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-28 08:45:36,765 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:36,766 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:36,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:36,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:36,992 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:36,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:36,992 INFO L85 PathProgramCache]: Analyzing trace with hash -797667638, now seen corresponding path program 1 times [2021-10-28 08:45:36,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:36,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104713523] [2021-10-28 08:45:36,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:36,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:37,009 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:37,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [652142427] [2021-10-28 08:45:37,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:37,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:37,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:37,011 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:37,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 08:45:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:37,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 08:45:37,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:37,647 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:37,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:37,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104713523] [2021-10-28 08:45:37,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:37,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652142427] [2021-10-28 08:45:37,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652142427] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:37,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:45:37,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-28 08:45:37,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491593843] [2021-10-28 08:45:37,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:45:37,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:37,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:45:37,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:45:37,650 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:37,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:37,951 INFO L93 Difference]: Finished difference Result 210 states and 234 transitions. [2021-10-28 08:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 08:45:37,952 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-28 08:45:37,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:37,954 INFO L225 Difference]: With dead ends: 210 [2021-10-28 08:45:37,954 INFO L226 Difference]: Without dead ends: 202 [2021-10-28 08:45:37,954 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:45:37,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-10-28 08:45:37,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 128. [2021-10-28 08:45:37,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 122 states have (on average 1.1721311475409837) internal successors, (143), 127 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:37,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 143 transitions. [2021-10-28 08:45:37,987 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 143 transitions. Word has length 35 [2021-10-28 08:45:37,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:37,988 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 143 transitions. [2021-10-28 08:45:37,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:37,988 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 143 transitions. [2021-10-28 08:45:37,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-28 08:45:37,991 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:37,992 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:38,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:38,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:38,212 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:38,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:38,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1158953764, now seen corresponding path program 2 times [2021-10-28 08:45:38,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:38,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430118398] [2021-10-28 08:45:38,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:38,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:38,226 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:38,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [148387854] [2021-10-28 08:45:38,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:45:38,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:38,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:38,233 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:38,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 08:45:38,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:45:38,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:38,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:45:38,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:38,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:38,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430118398] [2021-10-28 08:45:38,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:38,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148387854] [2021-10-28 08:45:38,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148387854] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:45:38,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:45:38,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:45:38,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495381587] [2021-10-28 08:45:38,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:45:38,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:38,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:45:38,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:45:38,536 INFO L87 Difference]: Start difference. First operand 128 states and 143 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:38,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:38,615 INFO L93 Difference]: Finished difference Result 241 states and 268 transitions. [2021-10-28 08:45:38,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:45:38,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2021-10-28 08:45:38,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:38,617 INFO L225 Difference]: With dead ends: 241 [2021-10-28 08:45:38,618 INFO L226 Difference]: Without dead ends: 142 [2021-10-28 08:45:38,619 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:45:38,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-28 08:45:38,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2021-10-28 08:45:38,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 128 states have (on average 1.1640625) internal successors, (149), 133 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:38,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 149 transitions. [2021-10-28 08:45:38,634 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 149 transitions. Word has length 39 [2021-10-28 08:45:38,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:38,635 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 149 transitions. [2021-10-28 08:45:38,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:38,635 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 149 transitions. [2021-10-28 08:45:38,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-28 08:45:38,637 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:38,637 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:38,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:38,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-28 08:45:38,859 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:38,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:38,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1020421613, now seen corresponding path program 3 times [2021-10-28 08:45:38,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:38,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445789511] [2021-10-28 08:45:38,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:38,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:38,874 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:38,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865666774] [2021-10-28 08:45:38,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:45:38,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:38,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:38,876 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:38,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 08:45:39,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-28 08:45:39,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:39,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 08:45:39,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:39,454 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-28 08:45:39,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:39,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445789511] [2021-10-28 08:45:39,455 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:39,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865666774] [2021-10-28 08:45:39,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865666774] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:39,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:45:39,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 08:45:39,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554460337] [2021-10-28 08:45:39,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:45:39,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:39,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:45:39,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:45:39,457 INFO L87 Difference]: Start difference. First operand 134 states and 149 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:46,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:46,320 INFO L93 Difference]: Finished difference Result 142 states and 154 transitions. [2021-10-28 08:45:46,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:45:46,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-10-28 08:45:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:46,322 INFO L225 Difference]: With dead ends: 142 [2021-10-28 08:45:46,322 INFO L226 Difference]: Without dead ends: 136 [2021-10-28 08:45:46,323 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:45:46,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-10-28 08:45:46,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 87. [2021-10-28 08:45:46,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.119047619047619) internal successors, (94), 86 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:46,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 94 transitions. [2021-10-28 08:45:46,340 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 94 transitions. Word has length 43 [2021-10-28 08:45:46,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:46,340 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 94 transitions. [2021-10-28 08:45:46,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:46,341 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 94 transitions. [2021-10-28 08:45:46,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 08:45:46,342 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:46,342 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:46,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:46,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:46,567 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:46,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:46,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1074581755, now seen corresponding path program 2 times [2021-10-28 08:45:46,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:46,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079926423] [2021-10-28 08:45:46,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:46,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:46,588 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:46,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075104859] [2021-10-28 08:45:46,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:45:46,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:46,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:46,604 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:46,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 08:45:46,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:45:46,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:46,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-28 08:45:46,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:48,044 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:48,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:48,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079926423] [2021-10-28 08:45:48,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:48,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075104859] [2021-10-28 08:45:48,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075104859] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:48,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:45:48,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-10-28 08:45:48,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733976433] [2021-10-28 08:45:48,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 08:45:48,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:48,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 08:45:48,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:45:48,048 INFO L87 Difference]: Start difference. First operand 87 states and 94 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:48,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:48,782 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2021-10-28 08:45:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 08:45:48,782 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-28 08:45:48,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:48,785 INFO L225 Difference]: With dead ends: 143 [2021-10-28 08:45:48,785 INFO L226 Difference]: Without dead ends: 135 [2021-10-28 08:45:48,786 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2021-10-28 08:45:48,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-28 08:45:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 96. [2021-10-28 08:45:48,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 93 states have (on average 1.118279569892473) internal successors, (104), 95 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:48,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 104 transitions. [2021-10-28 08:45:48,812 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 104 transitions. Word has length 44 [2021-10-28 08:45:48,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:48,813 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 104 transitions. [2021-10-28 08:45:48,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:48,814 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 104 transitions. [2021-10-28 08:45:48,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-28 08:45:48,819 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:48,819 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:48,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:49,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-28 08:45:49,043 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:49,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:49,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1128629901, now seen corresponding path program 3 times [2021-10-28 08:45:49,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:49,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748989103] [2021-10-28 08:45:49,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:49,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:49,058 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:49,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1600866377] [2021-10-28 08:45:49,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:45:49,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:49,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:49,072 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:49,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 08:45:49,350 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-28 08:45:49,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:49,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 08:45:49,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 08:45:49,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:49,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748989103] [2021-10-28 08:45:49,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:49,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600866377] [2021-10-28 08:45:49,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600866377] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:45:49,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:45:49,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 08:45:49,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001061547] [2021-10-28 08:45:49,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:45:49,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:49,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:45:49,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:45:49,583 INFO L87 Difference]: Start difference. First operand 96 states and 104 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:49,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:49,769 INFO L93 Difference]: Finished difference Result 110 states and 115 transitions. [2021-10-28 08:45:49,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 08:45:49,770 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-10-28 08:45:49,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:49,771 INFO L225 Difference]: With dead ends: 110 [2021-10-28 08:45:49,771 INFO L226 Difference]: Without dead ends: 96 [2021-10-28 08:45:49,772 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:45:49,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-28 08:45:49,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 78. [2021-10-28 08:45:49,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 75 states have (on average 1.08) internal successors, (81), 77 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) [2021-10-28 08:45:49,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2021-10-28 08:45:49,805 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 48 [2021-10-28 08:45:49,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:49,807 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2021-10-28 08:45:49,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:49,808 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2021-10-28 08:45:49,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 08:45:49,809 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:49,809 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:49,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:50,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-28 08:45:50,032 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:50,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:50,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1934789142, now seen corresponding path program 4 times [2021-10-28 08:45:50,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:50,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659705329] [2021-10-28 08:45:50,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:50,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:50,046 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:50,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446329878] [2021-10-28 08:45:50,046 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:45:50,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:50,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:50,061 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:50,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 08:45:50,342 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:45:50,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:50,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 08:45:50,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:52,730 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:52,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:52,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659705329] [2021-10-28 08:45:52,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:52,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446329878] [2021-10-28 08:45:52,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446329878] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:52,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:45:52,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-28 08:45:52,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635164257] [2021-10-28 08:45:52,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 08:45:52,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:52,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:45:52,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:45:52,733 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:54,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:54,303 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2021-10-28 08:45:54,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 08:45:54,304 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 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 [2021-10-28 08:45:54,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:54,305 INFO L225 Difference]: With dead ends: 133 [2021-10-28 08:45:54,305 INFO L226 Difference]: Without dead ends: 125 [2021-10-28 08:45:54,306 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-10-28 08:45:54,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-28 08:45:54,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 87. [2021-10-28 08:45:54,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.0833333333333333) internal successors, (91), 86 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:54,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2021-10-28 08:45:54,326 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 53 [2021-10-28 08:45:54,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:54,327 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2021-10-28 08:45:54,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:54,327 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2021-10-28 08:45:54,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-28 08:45:54,328 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:54,328 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:54,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:54,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:54,551 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:54,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:54,552 INFO L85 PathProgramCache]: Analyzing trace with hash -413997928, now seen corresponding path program 5 times [2021-10-28 08:45:54,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:54,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408890140] [2021-10-28 08:45:54,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:54,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:54,584 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:54,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [305829104] [2021-10-28 08:45:54,584 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:45:54,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:54,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:54,585 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:54,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-28 08:45:54,949 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-28 08:45:54,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:54,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:45:54,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:55,186 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:55,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:55,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408890140] [2021-10-28 08:45:55,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:55,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305829104] [2021-10-28 08:45:55,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305829104] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:55,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:45:55,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 08:45:55,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006752545] [2021-10-28 08:45:55,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:45:55,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:55,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:45:55,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:45:55,188 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:55,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:55,382 INFO L93 Difference]: Finished difference Result 159 states and 165 transitions. [2021-10-28 08:45:55,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:45:55,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-10-28 08:45:55,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:55,384 INFO L225 Difference]: With dead ends: 159 [2021-10-28 08:45:55,384 INFO L226 Difference]: Without dead ends: 116 [2021-10-28 08:45:55,385 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:45:55,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-28 08:45:55,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 106. [2021-10-28 08:45:55,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 103 states have (on average 1.087378640776699) internal successors, (112), 105 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:55,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 112 transitions. [2021-10-28 08:45:55,411 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 112 transitions. Word has length 57 [2021-10-28 08:45:55,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:55,411 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 112 transitions. [2021-10-28 08:45:55,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:55,412 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2021-10-28 08:45:55,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-28 08:45:55,413 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:55,413 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:55,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:55,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:55,627 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:55,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:55,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1860833829, now seen corresponding path program 6 times [2021-10-28 08:45:55,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:55,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939321249] [2021-10-28 08:45:55,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:55,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:55,640 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:55,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731334417] [2021-10-28 08:45:55,640 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:45:55,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:55,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:55,648 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:55,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 08:45:56,112 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-10-28 08:45:56,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:56,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 08:45:56,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:56,528 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-10-28 08:45:56,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:56,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939321249] [2021-10-28 08:45:56,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:56,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731334417] [2021-10-28 08:45:56,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731334417] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:56,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:45:56,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 08:45:56,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176285962] [2021-10-28 08:45:56,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:45:56,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:56,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:45:56,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:45:56,531 INFO L87 Difference]: Start difference. First operand 106 states and 112 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:56,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:56,786 INFO L93 Difference]: Finished difference Result 125 states and 133 transitions. [2021-10-28 08:45:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:45:56,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-10-28 08:45:56,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:56,788 INFO L225 Difference]: With dead ends: 125 [2021-10-28 08:45:56,788 INFO L226 Difference]: Without dead ends: 110 [2021-10-28 08:45:56,788 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:45:56,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-28 08:45:56,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 81. [2021-10-28 08:45:56,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.05) internal successors, (84), 80 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:56,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 84 transitions. [2021-10-28 08:45:56,810 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 84 transitions. Word has length 62 [2021-10-28 08:45:56,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:56,811 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 84 transitions. [2021-10-28 08:45:56,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 84 transitions. [2021-10-28 08:45:56,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 08:45:56,812 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:56,812 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:56,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:57,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-28 08:45:57,035 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:57,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:57,035 INFO L85 PathProgramCache]: Analyzing trace with hash 300678153, now seen corresponding path program 7 times [2021-10-28 08:45:57,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:57,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085541427] [2021-10-28 08:45:57,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:57,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:57,045 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:57,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1645328821] [2021-10-28 08:45:57,046 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:45:57,046 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:57,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:57,047 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:57,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 08:45:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:57,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 08:45:57,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:58,965 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:58,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:58,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085541427] [2021-10-28 08:45:58,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:45:58,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645328821] [2021-10-28 08:45:58,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645328821] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:58,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:45:58,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-10-28 08:45:58,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583869260] [2021-10-28 08:45:58,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 08:45:58,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:58,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 08:45:58,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-10-28 08:45:58,967 INFO L87 Difference]: Start difference. First operand 81 states and 84 transitions. Second operand has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:59,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:59,589 INFO L93 Difference]: Finished difference Result 158 states and 165 transitions. [2021-10-28 08:45:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 08:45:59,593 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-10-28 08:45:59,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:59,593 INFO L225 Difference]: With dead ends: 158 [2021-10-28 08:45:59,594 INFO L226 Difference]: Without dead ends: 93 [2021-10-28 08:45:59,594 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702 [2021-10-28 08:45:59,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-28 08:45:59,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2021-10-28 08:45:59,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.0449438202247192) internal successors, (93), 89 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:59,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions. [2021-10-28 08:45:59,621 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 66 [2021-10-28 08:45:59,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:59,621 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions. [2021-10-28 08:45:59,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:59,621 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions. [2021-10-28 08:45:59,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-10-28 08:45:59,622 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:59,622 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:59,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:59,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-28 08:45:59,840 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:45:59,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:59,841 INFO L85 PathProgramCache]: Analyzing trace with hash 822588344, now seen corresponding path program 8 times [2021-10-28 08:45:59,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:59,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764122467] [2021-10-28 08:45:59,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:59,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:59,855 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:45:59,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1012323496] [2021-10-28 08:45:59,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:45:59,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:59,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:59,857 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:59,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 08:46:00,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:46:00,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:00,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-28 08:46:00,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:02,722 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:02,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:02,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764122467] [2021-10-28 08:46:02,723 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:46:02,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012323496] [2021-10-28 08:46:02,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012323496] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:02,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:46:02,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-10-28 08:46:02,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715616404] [2021-10-28 08:46:02,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 08:46:02,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:02,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 08:46:02,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:46:02,726 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:03,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:03,950 INFO L93 Difference]: Finished difference Result 126 states and 131 transitions. [2021-10-28 08:46:03,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 08:46:03,951 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2021-10-28 08:46:03,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:03,952 INFO L225 Difference]: With dead ends: 126 [2021-10-28 08:46:03,952 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:46:03,953 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=243, Invalid=879, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 08:46:03,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:46:03,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:46:03,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:03,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:46:03,954 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2021-10-28 08:46:03,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:03,954 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:46:03,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:03,954 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:46:03,955 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:46:03,958 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:46:03,959 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:46:03,959 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:46:03,959 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:46:03,959 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:46:03,960 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:46:03,960 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:46:04,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:04,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-28 08:46:04,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 08:46:04,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:04,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:04,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:04,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:04,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:05,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:05,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:05,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:05,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:05,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:25,966 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:46:25,966 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-10-28 08:46:25,966 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2021-10-28 08:46:25,966 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2021-10-28 08:46:25,966 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:46:25,967 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 08:46:25,967 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 08:46:25,967 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-28 08:46:25,967 INFO L857 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-10-28 08:46:25,967 INFO L857 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2021-10-28 08:46:25,967 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:46:25,968 INFO L853 garLoopResultBuilder]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse23 (* 2 ULTIMATE.start_main_~y~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse7 (<= ULTIMATE.start_main_~y~0 10)) (.cse18 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (let ((.cse21 (* 4 ULTIMATE.start_main_~y~0)) (.cse9 (<= 1 ULTIMATE.start_main_~y~0)) (.cse22 (let ((.cse24 (<= 0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse2 .cse24 (= ULTIMATE.start_main_~b~0 .cse23) (= ULTIMATE.start_main_~a~0 2) .cse7) (and .cse0 .cse2 .cse24 (= ULTIMATE.start_main_~a~0 1) .cse7 .cse18))))) (let ((.cse17 (or (and .cse0 .cse2 (= ULTIMATE.start_main_~b~0 .cse21) (= ULTIMATE.start_main_~a~0 4) .cse9 .cse7) (and .cse9 .cse22))) (.cse20 (* 8 ULTIMATE.start_main_~y~0))) (let ((.cse4 (< ULTIMATE.start_main_~x~0 .cse20)) (.cse13 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (.cse11 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse16 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~r~0))) (.cse10 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0)) (.cse12 (<= 0 ULTIMATE.start_main_~x~0)) (.cse15 (= (+ ULTIMATE.start_main_~r~0 .cse21) ULTIMATE.start_main_~x~0)) (.cse6 (= ULTIMATE.start_main_~b~0 (* 2 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2)))))) (.cse14 (or (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse9 .cse22 (= ULTIMATE.start_main_~q~0 1) .cse18) (and .cse17 (< (* 2 ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse23)) (<= .cse23 ULTIMATE.start_main_~x~0)))) (.cse3 (<= ULTIMATE.start_main_~x~0 10)) (.cse8 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse5 (<= (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2)) ULTIMATE.start_main_~y~0))) (or (let ((.cse1 (* 6 ULTIMATE.start_main_~y~0))) (and .cse0 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse1)) .cse2 (<= .cse1 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 6) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8)) (and .cse0 .cse2 (<= 0 ULTIMATE.start_main_~r~0) .cse9 .cse3 .cse5 .cse6 (= ULTIMATE.start_main_~q~0 10) .cse7 .cse8 (exists ((aux_div_ULTIMATE.start_main_~b~0_36 Int)) (and (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* aux_div_ULTIMATE.start_main_~b~0_36 2) (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2)) (<= (+ ULTIMATE.start_main_~y~0 aux_div_ULTIMATE.start_main_~b~0_36) 0)))) (and .cse0 .cse9 .cse10 .cse11 .cse3 .cse6 .cse7 .cse12 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (and .cse13 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse14) (and .cse0 .cse2 .cse15 .cse16 .cse9 .cse10 .cse3 .cse4 .cse6 .cse7 .cse12 .cse8) (and .cse17 .cse13 .cse11 .cse3 .cse12 .cse18) (and .cse0 .cse2 (= ULTIMATE.start_main_~q~0 8) .cse16 .cse9 .cse10 .cse3 .cse6 .cse7 .cse12 .cse8) (and (< (div (+ (- 1) (* ULTIMATE.start_main_~r~0 (- 1))) (- 2)) (+ ULTIMATE.start_main_~y~0 1)) (or (let ((.cse19 (div ULTIMATE.start_main_~q~0 2))) (and .cse0 (= (mod (div (- .cse19) (- 2)) (- 2)) 0) (= ULTIMATE.start_main_~y~0 (* (div (* (div (* .cse19 (- 1)) (- 2)) (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) .cse2 (= (mod ULTIMATE.start_main_~q~0 2) 0) .cse3 (= (mod .cse19 (- 2)) 0) .cse6 .cse7 .cse8 (<= .cse20 ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~r~0 .cse20) ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~q~0 4) .cse0 (<= .cse21 ULTIMATE.start_main_~x~0) .cse2 .cse15 .cse3 .cse6 .cse7 .cse8) (and .cse14 .cse3 .cse8)) .cse5)))))) [2021-10-28 08:46:25,968 INFO L857 garLoopResultBuilder]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2021-10-28 08:46:25,969 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:46:25,969 INFO L853 garLoopResultBuilder]: At program point L47-2(lines 47 59) the Hoare annotation is: (let ((.cse18 (* 8 ULTIMATE.start_main_~y~0)) (.cse23 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2)))) (.cse20 (* 2 ULTIMATE.start_main_~y~0))) (let ((.cse4 (= ULTIMATE.start_main_~a~0 2)) (.cse22 (<= .cse20 ULTIMATE.start_main_~r~0)) (.cse8 (= ULTIMATE.start_main_~b~0 (* 2 .cse23))) (.cse11 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse13 (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0))) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse12 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse5 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse19 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 0 ULTIMATE.start_main_~r~0)) (.cse3 (<= 1 ULTIMATE.start_main_~y~0)) (.cse16 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse7 (<= ULTIMATE.start_main_~x~0 10)) (.cse21 (< ULTIMATE.start_main_~x~0 .cse18)) (.cse9 (<= ULTIMATE.start_main_~y~0 10)) (.cse17 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 (<= (* 2 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2))) ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 (= ULTIMATE.start_main_~a~0 4) .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11) (and .cse13 (let ((.cse15 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond))) (or (let ((.cse14 (div ULTIMATE.start_main_~q~0 2))) (and .cse0 (= (mod (div (- .cse14) (- 2)) (- 2)) 0) (= ULTIMATE.start_main_~y~0 (* (div (* (div (* .cse14 (- 1)) (- 2)) (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) .cse15 .cse16 (= (mod ULTIMATE.start_main_~q~0 2) 0) .cse7 (= (mod .cse14 (- 2)) 0) .cse17 (<= .cse18 ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~r~0 .cse18) ULTIMATE.start_main_~x~0))) (and (or (and (= ULTIMATE.start_main_~q~0 4) .cse0 .cse15 .cse19 .cse2 .cse7) (and (or (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse0 .cse15 .cse2 (= ULTIMATE.start_main_~q~0 1)) (and .cse0 .cse15 (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse20)) (<= .cse20 ULTIMATE.start_main_~x~0))) .cse7)) .cse16 .cse17)))) (and .cse0 .cse19 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse21 .cse22 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse3 .cse6 .cse7 .cse22 (= ULTIMATE.start_main_~y~0 .cse23) .cse8 .cse12 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11 (= ULTIMATE.start_main_~a~0 8)) (and .cse0 .cse13 .cse1 .cse2 .cse16 .cse6 .cse7 .cse9 .cse10 .cse17) (and .cse0 .cse1 .cse3 .cse16 .cse6 .cse7 .cse9 .cse10 .cse12 .cse17) (and .cse0 .cse1 .cse2 .cse3 .cse16 .cse5 .cse6 .cse7 .cse9 .cse17) (and .cse0 .cse19 .cse1 .cse2 .cse3 .cse16 .cse6 .cse7 .cse21 .cse9 .cse17)))) [2021-10-28 08:46:25,969 INFO L857 garLoopResultBuilder]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2021-10-28 08:46:25,969 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:46:25,970 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:46:25,970 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse18 (* 8 ULTIMATE.start_main_~y~0)) (.cse19 (* 4 ULTIMATE.start_main_~y~0)) (.cse9 (= ULTIMATE.start_main_~a~0 1)) (.cse12 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 1 ULTIMATE.start_main_~y~0)) (.cse6 (<= ULTIMATE.start_main_~y~0 10))) (let ((.cse8 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (.cse16 (or (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2 .cse9 (= ULTIMATE.start_main_~q~0 1) .cse6 .cse12) (let ((.cse21 (* 2 ULTIMATE.start_main_~y~0))) (and (< (* 2 ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~x~0) .cse0 (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse21)) .cse2 (<= .cse21 ULTIMATE.start_main_~x~0) .cse6)))) (.cse4 (<= (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) (.cse20 (= (+ ULTIMATE.start_main_~r~0 .cse19) ULTIMATE.start_main_~x~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse13 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0)) (.cse10 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse3 (<= ULTIMATE.start_main_~x~0 10)) (.cse15 (< ULTIMATE.start_main_~x~0 .cse18)) (.cse5 (= ULTIMATE.start_main_~b~0 (* 2 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2)))))) (.cse11 (<= 0 ULTIMATE.start_main_~x~0)) (.cse7 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0))) (or (and .cse0 .cse1 (<= 0 ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~q~0 10) .cse6 .cse7 (exists ((aux_div_ULTIMATE.start_main_~b~0_36 Int)) (and (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* aux_div_ULTIMATE.start_main_~b~0_36 2) (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2)) (<= (+ ULTIMATE.start_main_~y~0 aux_div_ULTIMATE.start_main_~b~0_36) 0)))) (and .cse0 .cse8 .cse1 .cse2 .cse9 .cse10 .cse3 .cse6 .cse11 .cse12) (and .cse0 .cse1 (= ULTIMATE.start_main_~q~0 8) .cse2 .cse13 .cse10 .cse3 .cse5 .cse6 .cse11 .cse7) (let ((.cse14 (* 6 ULTIMATE.start_main_~y~0))) (and .cse0 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse14)) (<= .cse14 ULTIMATE.start_main_~x~0) .cse1 (= ULTIMATE.start_main_~q~0 6) .cse2 .cse3 .cse15 .cse4 .cse5 .cse6 .cse7)) (and .cse8 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse16) (and .cse0 .cse1 .cse2 .cse13 .cse10 .cse3 .cse5 .cse6 .cse11 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (and (< (div (+ (- 1) (* ULTIMATE.start_main_~r~0 (- 1))) (- 2)) (+ ULTIMATE.start_main_~y~0 1)) (or (let ((.cse17 (div ULTIMATE.start_main_~q~0 2))) (and .cse0 (= (mod (div (- .cse17) (- 2)) (- 2)) 0) (= ULTIMATE.start_main_~y~0 (* (div (* (div (* .cse17 (- 1)) (- 2)) (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) .cse1 .cse2 (= (mod ULTIMATE.start_main_~q~0 2) 0) .cse3 (= (mod .cse17 (- 2)) 0) .cse5 .cse6 .cse7 (<= .cse18 ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~r~0 .cse18) ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~q~0 4) .cse0 (<= .cse19 ULTIMATE.start_main_~x~0) .cse20 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7) (and .cse1 .cse3 .cse5 .cse7 .cse16)) .cse4) (and .cse0 .cse20 .cse1 .cse2 .cse13 .cse10 .cse3 .cse15 .cse5 .cse6 .cse11 .cse7)))) [2021-10-28 08:46:25,970 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:46:25,971 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 42 43) the Hoare annotation is: (let ((.cse15 (* 4 ULTIMATE.start_main_~y~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse16 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 1 ULTIMATE.start_main_~y~0)) (.cse10 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (<= ULTIMATE.start_main_~y~0 10)) (.cse11 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (let ((.cse9 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (.cse12 (or (let ((.cse20 (* 2 ULTIMATE.start_main_~y~0))) (and (< (* 2 ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~x~0) .cse0 .cse16 (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse20)) (<= .cse20 ULTIMATE.start_main_~x~0) .cse6)) (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse0 .cse16 .cse2 .cse10 (= ULTIMATE.start_main_~q~0 1) .cse6 .cse11))) (.cse13 (< (div (+ (- 1) (* ULTIMATE.start_main_~r~0 (- 1))) (- 2)) (+ ULTIMATE.start_main_~y~0 1))) (.cse14 (<= (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) (.cse17 (= (+ ULTIMATE.start_main_~r~0 .cse15) ULTIMATE.start_main_~x~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse4 (<= ULTIMATE.start_main_~x~0 10)) (.cse19 (* 8 ULTIMATE.start_main_~y~0)) (.cse5 (= ULTIMATE.start_main_~b~0 (* 2 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2)))))) (.cse7 (<= 0 ULTIMATE.start_main_~x~0)) (.cse8 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~q~0 8) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse9 .cse1 .cse2 .cse10 .cse3 .cse4 .cse6 .cse7 .cse11) (and .cse9 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse12) (and .cse13 .cse14 (or (and (= ULTIMATE.start_main_~q~0 4) .cse0 (<= .cse15 ULTIMATE.start_main_~x~0) .cse16 .cse17 .cse4 .cse5 .cse8) (and .cse4 .cse5 .cse12 .cse8) (let ((.cse18 (div ULTIMATE.start_main_~q~0 2))) (and .cse0 (= (mod (div (- .cse18) (- 2)) (- 2)) 0) (= ULTIMATE.start_main_~y~0 (* (div (* (div (* .cse18 (- 1)) (- 2)) (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) .cse16 (= (mod ULTIMATE.start_main_~q~0 2) 0) .cse4 (= (mod .cse18 (- 2)) 0) .cse5 .cse8 (<= .cse19 ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~r~0 .cse19) ULTIMATE.start_main_~x~0))))) (and .cse0 .cse13 .cse1 .cse2 .cse3 .cse4 .cse14 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0) .cse3 .cse4 .cse5 .cse6 .cse7 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (and .cse0 .cse17 .cse1 .cse2 .cse3 .cse4 (< ULTIMATE.start_main_~x~0 .cse19) .cse5 .cse6 .cse7 .cse8)))) [2021-10-28 08:46:25,972 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:46:25,972 INFO L853 garLoopResultBuilder]: At program point L15-8(lines 14 20) the Hoare annotation is: (let ((.cse19 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2))))) (let ((.cse13 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~a~0 2)) (.cse15 (< ULTIMATE.start_main_~x~0 (* 8 ULTIMATE.start_main_~y~0))) (.cse17 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0)) (.cse8 (= ULTIMATE.start_main_~b~0 (* 2 .cse19))) (.cse11 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse18 (= ULTIMATE.start_main_~a~0 1)) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse12 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 0 ULTIMATE.start_main_~r~0)) (.cse3 (<= 1 ULTIMATE.start_main_~y~0)) (.cse14 (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0))) (.cse5 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2))) (.cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse7 (<= ULTIMATE.start_main_~x~0 10)) (.cse9 (<= ULTIMATE.start_main_~y~0 10)) (.cse16 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 (<= (* 2 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2))) ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 (= ULTIMATE.start_main_~a~0 4) .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11) (and .cse0 .cse13 .cse1 .cse2 .cse3 .cse14 .cse6 .cse7 .cse15 .cse9 .cse16) (and .cse0 .cse13 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse15 .cse17 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11 (= ULTIMATE.start_main_~a~0 8)) (and .cse0 (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) .cse1 .cse2 .cse18 .cse6 .cse7 .cse9 .cse10 .cse16) (and .cse0 .cse1 .cse3 (= ULTIMATE.start_main_~q~0 0) .cse7 .cse17 (= ULTIMATE.start_main_~y~0 .cse19) .cse8 .cse12 .cse11) (and .cse0 .cse1 .cse3 .cse18 .cse6 .cse7 .cse9 .cse10 .cse12 .cse16) (and .cse0 .cse1 .cse2 .cse3 .cse14 .cse5 .cse6 .cse7 .cse9 .cse16)))) [2021-10-28 08:46:25,972 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:46:25,973 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse19 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2))))) (let ((.cse1 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0)) (.cse8 (< ULTIMATE.start_main_~x~0 (* 8 ULTIMATE.start_main_~y~0))) (.cse12 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (<= 0 ULTIMATE.start_main_~r~0)) (.cse16 (= ULTIMATE.start_main_~a~0 2)) (.cse18 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2))) (.cse17 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0)) (.cse13 (= ULTIMATE.start_main_~b~0 (* 2 .cse19))) (.cse15 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (<= 1 ULTIMATE.start_main_~y~0)) (.cse5 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse7 (<= ULTIMATE.start_main_~x~0 10)) (.cse9 (<= ULTIMATE.start_main_~y~0 10)) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse14 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse11 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse2 .cse3 .cse4 .cse6 .cse7 .cse13 .cse9 .cse10 .cse14 .cse15 (= ULTIMATE.start_main_~a~0 8)) (and .cse0 .cse12 .cse1 .cse2 .cse3 .cse4 .cse16 .cse6 .cse7 .cse8 .cse17 .cse13 .cse9 .cse10 .cse15) (and .cse0 .cse12 .cse2 (= ULTIMATE.start_main_~a~0 4) .cse3 .cse4 .cse6 .cse7 .cse13 .cse9 .cse10 .cse14 .cse15) (and .cse0 (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10 .cse11) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse18 .cse6 .cse7 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse2 (<= (* 2 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2))) ULTIMATE.start_main_~r~0) .cse3 .cse4 .cse16 .cse18 .cse6 .cse7 .cse13 .cse9 .cse10 .cse15) (and .cse0 .cse2 .cse4 (= ULTIMATE.start_main_~q~0 0) .cse7 .cse17 (= ULTIMATE.start_main_~y~0 .cse19) .cse13 .cse14 .cse15) (and .cse0 .cse2 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10 .cse14 .cse11)))) [2021-10-28 08:46:25,973 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:46:25,974 INFO L853 garLoopResultBuilder]: At program point L15-14(lines 52 53) the Hoare annotation is: (let ((.cse18 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2))))) (let ((.cse12 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse13 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~a~0 2)) (.cse15 (< ULTIMATE.start_main_~x~0 (* 8 ULTIMATE.start_main_~y~0))) (.cse17 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0)) (.cse8 (= ULTIMATE.start_main_~b~0 (* 2 .cse18))) (.cse11 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 0 ULTIMATE.start_main_~r~0)) (.cse3 (<= 1 ULTIMATE.start_main_~y~0)) (.cse14 (= ULTIMATE.start_main_~a~0 1)) (.cse5 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2))) (.cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse7 (<= ULTIMATE.start_main_~x~0 10)) (.cse9 (<= ULTIMATE.start_main_~y~0 10)) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse16 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 (<= (* 2 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2))) ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 (= ULTIMATE.start_main_~a~0 4) .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11) (and .cse0 .cse1 .cse13 .cse2 .cse3 .cse14 .cse6 .cse7 .cse15 .cse9 .cse10 .cse16) (and .cse0 .cse1 .cse3 .cse6 .cse7 .cse17 (= ULTIMATE.start_main_~y~0 .cse18) .cse8 .cse12 .cse11) (and .cse0 .cse1 (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) .cse2 .cse3 .cse14 .cse6 .cse7 .cse9 .cse10 .cse16) (and .cse0 .cse1 .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11 (= ULTIMATE.start_main_~a~0 8)) (and .cse0 .cse1 .cse3 .cse14 .cse6 .cse7 .cse9 .cse10 .cse12 .cse16) (and .cse0 .cse1 .cse13 .cse2 .cse3 .cse4 .cse6 .cse7 .cse15 .cse17 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse14 .cse5 .cse6 .cse7 .cse9 .cse10 .cse16)))) [2021-10-28 08:46:25,974 INFO L860 garLoopResultBuilder]: At program point L65(lines 22 66) the Hoare annotation is: true [2021-10-28 08:46:25,974 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:46:25,974 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 08:46:25,975 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse8 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse9 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (let ((.cse1 (<= (* 2 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~r~0)) (.cse0 (let ((.cse11 (<= 0 ULTIMATE.start_main_~r~0)) (.cse12 (<= ULTIMATE.start_main_~y~0 10))) (or (and .cse7 .cse8 .cse11 (= ULTIMATE.start_main_~b~0 (* 2 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2))))) .cse12 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (and .cse7 .cse8 .cse11 .cse9 .cse12 .cse6)))) (.cse2 (<= 1 ULTIMATE.start_main_~y~0)) (.cse3 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse4 (<= ULTIMATE.start_main_~x~0 10)) (.cse5 (<= 0 ULTIMATE.start_main_~x~0)) (.cse10 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0))) (or (and .cse0 .cse1 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0) .cse2 .cse3 .cse4 (< ULTIMATE.start_main_~x~0 (* 8 ULTIMATE.start_main_~y~0)) .cse5 .cse6) (and .cse7 .cse1 .cse8 .cse2 (= ULTIMATE.start_main_~q~0 0) .cse9 .cse4 .cse10 .cse6) (and .cse0 (= ULTIMATE.start_main_~a~0 4) .cse2 .cse3 .cse4 .cse5 .cse10) (and .cse0 .cse1 .cse2 .cse9 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2)) .cse3 .cse4 .cse5) (and .cse0 .cse2 (= ULTIMATE.start_main_~a~0 2) .cse3 .cse4 .cse5 .cse10)))) [2021-10-28 08:46:25,975 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:46:25,975 INFO L860 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-10-28 08:46:25,975 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:46:25,975 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:46:25,976 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:46:25,976 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:46:25,976 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:46:25,976 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:46:25,976 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:46:25,976 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:46:25,977 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 08:46:25,977 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:46:25,983 INFO L731 BasicCegarLoop]: Path program histogram: [8, 3, 2, 1, 1, 1, 1, 1] [2021-10-28 08:46:25,985 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:46:26,071 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,075 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,075 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,080 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,080 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:46:26 BoogieIcfgContainer [2021-10-28 08:46:26,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:46:26,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:46:26,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:46:26,084 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:46:26,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:45:30" (3/4) ... [2021-10-28 08:46:26,087 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:46:26,100 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-28 08:46:26,100 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 08:46:26,100 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:46:26,101 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:46:26,127 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((cond == 1 && x == r + 6 * y) && 1 <= cond) && 6 * y <= x) && q == 6) && x <= 10) && x < 8 * y) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || ((((((((((cond == 1 && 1 <= cond) && 0 <= r) && 1 <= y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && q == 10) && y <= 10) && a % -2 == 0) && (\exists aux_div_ULTIMATE.start_main_~b~0_36 : int :: y <= (x + aux_div_ULTIMATE.start_main_~b~0_36 * 2 + r * -1) / 2 / 2 / 2 && y + aux_div_ULTIMATE.start_main_~b~0_36 <= 0))) || ((((((((cond == 1 && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || ((r < y && b <= y) && (((((x == r + y && 1 <= y) && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y))) && q == 1) && b == y) || ((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && 2 * r < x) && q == 2) && x == r + 2 * y) && 2 * y <= x)))) || (((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && x == b + r) && 1 <= y) && a == q) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && r < y) && x == r + q * y) && x <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 <= cond) && q == 8) && x == b + r) && 1 <= y) && a == q) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((-1 + r * -1) / -2 < y + 1 && (((((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 <= cond) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x) || ((((((((q == 4 && cond == 1) && 4 * y <= x) && 1 <= cond) && r + 4 * y == x) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || (((((((x == r + y && 1 <= y) && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y))) && q == 1) && b == y) || ((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && 2 * r < x) && q == 2) && x == r + 2 * y) && 2 * y <= x)) && x <= 10) && a % -2 == 0))) && b * -1 / -2 <= y) [2021-10-28 08:46:26,127 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && q == 10) && y <= 10) && a % -2 == 0) && (\exists aux_div_ULTIMATE.start_main_~b~0_36 : int :: y <= (x + aux_div_ULTIMATE.start_main_~b~0_36 * 2 + r * -1) / 2 / 2 / 2 && y + aux_div_ULTIMATE.start_main_~b~0_36 <= 0)) || (((((((((cond == 1 && r < y) && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 == cond) && q == 8) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && x == r + 6 * y) && 6 * y <= x) && 1 == cond) && q == 6) && 1 <= y) && x <= 10) && x < 8 * y) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || ((r < y && b <= y) && ((((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y) || ((((((2 * r < x && cond == 1) && q == 2) && x == r + 2 * y) && 1 <= y) && 2 * y <= x) && y <= 10)))) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || (((-1 + r * -1) / -2 < y + 1 && ((((((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 == cond) && 1 <= y) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x) || (((((((((q == 4 && cond == 1) && 4 * y <= x) && r + 4 * y == x) && 1 == cond) && 1 <= y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || ((((1 == cond && x <= 10) && b == 2 * (y * (a * -1 / -2))) && a % -2 == 0) && ((((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y) || ((((((2 * r < x && cond == 1) && q == 2) && x == r + 2 * y) && 1 <= y) && 2 * y <= x) && y <= 10))))) && b * -1 / -2 <= y)) || (((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) [2021-10-28 08:46:26,160 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:46:26,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:46:26,162 INFO L168 Benchmark]: Toolchain (without parser) took 56481.83 ms. Allocated memory was 96.5 MB in the beginning and 180.4 MB in the end (delta: 83.9 MB). Free memory was 61.9 MB in the beginning and 130.9 MB in the end (delta: -69.0 MB). Peak memory consumption was 109.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:26,162 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory was 67.5 MB in the beginning and 67.5 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:46:26,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.13 ms. Allocated memory was 96.5 MB in the beginning and 138.4 MB in the end (delta: 41.9 MB). Free memory was 61.7 MB in the beginning and 113.6 MB in the end (delta: -51.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:26,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.72 ms. Allocated memory is still 138.4 MB. Free memory was 113.6 MB in the beginning and 111.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:46:26,163 INFO L168 Benchmark]: Boogie Preprocessor took 26.99 ms. Allocated memory is still 138.4 MB. Free memory was 111.5 MB in the beginning and 110.8 MB in the end (delta: 718.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:26,164 INFO L168 Benchmark]: RCFGBuilder took 407.96 ms. Allocated memory is still 138.4 MB. Free memory was 110.8 MB in the beginning and 98.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:26,164 INFO L168 Benchmark]: TraceAbstraction took 55632.97 ms. Allocated memory was 138.4 MB in the beginning and 180.4 MB in the end (delta: 41.9 MB). Free memory was 97.5 MB in the beginning and 40.0 MB in the end (delta: 57.5 MB). Peak memory consumption was 106.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:26,165 INFO L168 Benchmark]: Witness Printer took 76.93 ms. Allocated memory is still 180.4 MB. Free memory was 40.0 MB in the beginning and 130.9 MB in the end (delta: -90.9 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:26,167 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 96.5 MB. Free memory was 67.5 MB in the beginning and 67.5 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 275.13 ms. Allocated memory was 96.5 MB in the beginning and 138.4 MB in the end (delta: 41.9 MB). Free memory was 61.7 MB in the beginning and 113.6 MB in the end (delta: -51.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.72 ms. Allocated memory is still 138.4 MB. Free memory was 113.6 MB in the beginning and 111.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.99 ms. Allocated memory is still 138.4 MB. Free memory was 111.5 MB in the beginning and 110.8 MB in the end (delta: 718.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 407.96 ms. Allocated memory is still 138.4 MB. Free memory was 110.8 MB in the beginning and 98.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 55632.97 ms. Allocated memory was 138.4 MB in the beginning and 180.4 MB in the end (delta: 41.9 MB). Free memory was 97.5 MB in the beginning and 40.0 MB in the end (delta: 57.5 MB). Peak memory consumption was 106.9 MB. Max. memory is 16.1 GB. * Witness Printer took 76.93 ms. Allocated memory is still 180.4 MB. Free memory was 40.0 MB in the beginning and 130.9 MB in the end (delta: -90.9 MB). Peak memory consumption was 4.5 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[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 55.4s, OverallIterations: 18, TraceHistogramMax: 6, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 21.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 507 SDtfs, 1538 SDslu, 1264 SDs, 0 SdLazy, 2982 SolverSat, 500 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 754 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=10, InterpolantAutomatonStates: 191, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 405 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 78 NumberOfFragments, 4255 HoareAnnotationTreeSize, 10 FomulaSimplifications, 869621 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 10 FomulaSimplificationsInter, 205960 FormulaSimplificationTreeSizeReductionInter, 20.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 678 NumberOfCodeBlocks, 604 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 660 ConstructedInterpolants, 3 QuantifiedInterpolants, 8081 SizeOfPredicates, 128 NumberOfNonLiveVariables, 2211 ConjunctsInSsa, 349 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 207/563 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 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && x < 8 * y) && y <= 10) && 0 <= x) && b == y) || ((((((((((((cond == 1 && 1 <= cond) && 1 == cond) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0) && a == 8)) || ((((((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && x < 8 * y) && 2 * y <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || ((((((((((((cond == 1 && 1 <= cond) && 1 == cond) && a == 4) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0)) || ((((((((((cond == 1 && r < 2 * b) && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || (((((((((((((cond == 1 && 1 <= cond) && 1 == cond) && 2 * (b * -1 / -2) <= r) && 0 <= r) && 1 <= y) && a == 2) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && q == 0) && x <= 10) && 2 * y <= r) && y == y * (a * -1 / -2)) && b == 2 * (y * (a * -1 / -2))) && r == x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && r == x) && b == y) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((((((((cond == 1 && 1 == cond) && 0 <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || (((((cond == 1 && 1 == cond) && 0 <= r) && a == 1) && y <= 10) && b == y)) && 2 * b <= r) && r + 4 * y == x) && 1 <= y) && x == r + q * y) && x <= 10) && x < 8 * y) && 0 <= x) && b == y) || ((((((((cond == 1 && 2 * b <= r) && 1 == cond) && 1 <= y) && q == 0) && a == 1) && x <= 10) && r == x) && b == y)) || ((((((((((((cond == 1 && 1 == cond) && 0 <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || (((((cond == 1 && 1 == cond) && 0 <= r) && a == 1) && y <= 10) && b == y)) && a == 4) && 1 <= y) && x == r + q * y) && x <= 10) && 0 <= x) && r == x)) || (((((((((((((cond == 1 && 1 == cond) && 0 <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || (((((cond == 1 && 1 == cond) && 0 <= r) && a == 1) && y <= 10) && b == y)) && 2 * b <= r) && 1 <= y) && a == 1) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && 0 <= x)) || ((((((((((((cond == 1 && 1 == cond) && 0 <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || (((((cond == 1 && 1 == cond) && 0 <= r) && a == 1) && y <= 10) && b == y)) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && 0 <= x) && r == x) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (((((((((((((((((((cond == 1 && 1 <= cond) && 2 * (b * -1 / -2) <= r) && 0 <= r) && 1 <= y) && a == 2) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) || (((((((((((cond == 1 && 1 <= cond) && a == 4) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && x < 8 * y) && y <= 10) && 0 <= x) && b == y)) || (((((((((cond == 1 && 1 <= cond) && 1 <= y) && x == r + q * y) && x <= 10) && 2 * y <= r) && y == y * (a * -1 / -2)) && b == 2 * (y * (a * -1 / -2))) && r == x) && a % -2 == 0)) || ((((((((((cond == 1 && 1 <= cond) && r < 2 * b) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || (((((((((((cond == 1 && 1 <= cond) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0) && a == 8)) || (((((((((cond == 1 && 1 <= cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && r == x) && b == y)) || (((((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && 0 <= r) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && x < 8 * y) && 2 * y <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || ((((((((((cond == 1 && 1 <= cond) && 0 <= r) && 1 <= y) && a == 1) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((((((((((cond == 1 && 1 == cond) && 2 * (b * -1 / -2) <= r) && 0 <= r) && 1 <= y) && a == 2) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) || (((((((((((cond == 1 && 1 == cond) && a == 4) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0)) || ((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && b == a * y) && x == r + q * y) && x <= 10) && x < 8 * y) && y <= 10) && b == y)) || (((((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && x < 8 * y) && 2 * y <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0) && a == 8)) || (((((((((cond == 1 && r < 2 * b) && 1 == cond) && 0 <= r) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && q == 0) && x <= 10) && 2 * y <= r) && y == y * (a * -1 / -2)) && b == 2 * (y * (a * -1 / -2))) && r == x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && r == x) && b == y)) || (((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && b == a * y) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && y <= 10) && b == y) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((((((((((((((cond == 1 && 1 == cond) && q == 8) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) || (((((((((cond == 1 && r < y) && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || ((r < y && b <= y) && (((((((2 * r < x && cond == 1) && 1 <= cond) && q == 2) && x == r + 2 * y) && 2 * y <= x) && y <= 10) || (((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y)))) || (((-1 + r * -1) / -2 < y + 1 && b * -1 / -2 <= y) && (((((((((q == 4 && cond == 1) && 4 * y <= x) && 1 <= cond) && r + 4 * y == x) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && a % -2 == 0) || (((x <= 10 && b == 2 * (y * (a * -1 / -2))) && (((((((2 * r < x && cond == 1) && 1 <= cond) && q == 2) && x == r + 2 * y) && 2 * y <= x) && y <= 10) || (((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y))) && a % -2 == 0)) || ((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 <= cond) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x)))) || ((((((((((cond == 1 && (-1 + r * -1) / -2 < y + 1) && 1 == cond) && 1 <= y) && x == r + q * y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || ((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 1 <= y) && x == r + q * y) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((((((((((((((cond == 1 && 1 == cond) && 2 * (b * -1 / -2) <= r) && 0 <= r) && 1 <= y) && a == 2) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) || (((((((((((cond == 1 && 1 == cond) && a == 4) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0)) || (r < 2 * b && (((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 <= cond) && a == 1) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == y) && 8 * y <= x) && r + 8 * y == x) || ((((((((q == 4 && cond == 1) && 1 <= cond) && r + 4 * y == x) && 0 <= r) && x <= 10) || ((((((x == r + y && cond == 1) && 1 <= cond) && 0 <= r) && q == 1) || ((((cond == 1 && 1 <= cond) && q == 2) && x == r + 2 * y) && 2 * y <= x)) && x <= 10)) && a == 1) && b == y)))) || (((((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && x < 8 * y) && 2 * y <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && x == r + q * y) && x <= 10) && 2 * y <= r) && y == y * (a * -1 / -2)) && b == 2 * (y * (a * -1 / -2))) && r == x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0) && a == 8)) || (((((((((cond == 1 && r < 2 * b) && 1 == cond) && 0 <= r) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && r == x) && b == y)) || (((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && y <= 10) && b == y)) || ((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && x < 8 * y) && y <= 10) && b == y) - InvariantResult [Line: 38]: Loop Invariant [2021-10-28 08:46:26,193 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,193 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,195 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,195 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] Derived loop invariant: ((((((((((((((((cond == 1 && x == r + 6 * y) && 1 <= cond) && 6 * y <= x) && q == 6) && x <= 10) && x < 8 * y) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || ((((((((((cond == 1 && 1 <= cond) && 0 <= r) && 1 <= y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && q == 10) && y <= 10) && a % -2 == 0) && (\exists aux_div_ULTIMATE.start_main_~b~0_36 : int :: y <= (x + aux_div_ULTIMATE.start_main_~b~0_36 * 2 + r * -1) / 2 / 2 / 2 && y + aux_div_ULTIMATE.start_main_~b~0_36 <= 0))) || ((((((((cond == 1 && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || ((r < y && b <= y) && (((((x == r + y && 1 <= y) && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y))) && q == 1) && b == y) || ((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && 2 * r < x) && q == 2) && x == r + 2 * y) && 2 * y <= x)))) || (((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && x == b + r) && 1 <= y) && a == q) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && r < y) && x == r + q * y) && x <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 <= cond) && q == 8) && x == b + r) && 1 <= y) && a == q) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((-1 + r * -1) / -2 < y + 1 && (((((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 <= cond) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x) || ((((((((q == 4 && cond == 1) && 4 * y <= x) && 1 <= cond) && r + 4 * y == x) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || (((((((x == r + y && 1 <= y) && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y))) && q == 1) && b == y) || ((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && 2 * r < x) && q == 2) && x == r + 2 * y) && 2 * y <= x)) && x <= 10) && a % -2 == 0))) && b * -1 / -2 <= y) - InvariantResult [Line: 14]: Loop Invariant [2021-10-28 08:46:26,198 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,198 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,200 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 08:46:26,200 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] Derived loop invariant: ((((((((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && q == 10) && y <= 10) && a % -2 == 0) && (\exists aux_div_ULTIMATE.start_main_~b~0_36 : int :: y <= (x + aux_div_ULTIMATE.start_main_~b~0_36 * 2 + r * -1) / 2 / 2 / 2 && y + aux_div_ULTIMATE.start_main_~b~0_36 <= 0)) || (((((((((cond == 1 && r < y) && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 == cond) && q == 8) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && x == r + 6 * y) && 6 * y <= x) && 1 == cond) && q == 6) && 1 <= y) && x <= 10) && x < 8 * y) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || ((r < y && b <= y) && ((((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y) || ((((((2 * r < x && cond == 1) && q == 2) && x == r + 2 * y) && 1 <= y) && 2 * y <= x) && y <= 10)))) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || (((-1 + r * -1) / -2 < y + 1 && ((((((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 == cond) && 1 <= y) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x) || (((((((((q == 4 && cond == 1) && 4 * y <= x) && r + 4 * y == x) && 1 == cond) && 1 <= y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || ((((1 == cond && x <= 10) && b == 2 * (y * (a * -1 / -2))) && a % -2 == 0) && ((((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y) || ((((((2 * r < x && cond == 1) && q == 2) && x == r + 2 * y) && 1 <= y) && 2 * y <= x) && y <= 10))))) && b * -1 / -2 <= y)) || (((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 08:46:26,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b710a0-6064-44d8-b761-487a76018842/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...