./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-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_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d5fb336862157190b75f459fa5ac35efb8ca70e207f909b082fde37cf98e7f7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:18:51,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:18:51,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:18:51,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:18:51,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:18:51,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:18:51,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:18:51,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:18:51,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:18:51,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:18:51,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:18:51,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:18:51,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:18:51,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:18:51,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:18:51,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:18:51,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:18:51,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:18:51,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:18:51,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:18:51,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:18:51,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:18:51,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:18:51,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:18:51,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:18:51,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:18:51,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:18:51,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:18:51,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:18:51,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:18:51,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:18:51,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:18:51,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:18:51,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:18:51,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:18:51,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:18:51,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:18:51,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:18:51,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:18:51,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:18:51,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:18:51,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:18:51,605 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:18:51,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:18:51,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:18:51,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:18:51,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:18:51,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:18:51,608 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:18:51,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:18:51,609 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:18:51,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:18:51,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:18:51,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:18:51,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:18:51,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:18:51,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:18:51,611 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:18:51,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:18:51,611 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:18:51,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:18:51,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:18:51,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:18:51,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:18:51,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:18:51,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:18:51,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:18:51,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:18:51,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:18:51,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:18:51,613 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:18:51,615 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:18:51,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:18:51,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:18:51,616 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_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d5fb336862157190b75f459fa5ac35efb8ca70e207f909b082fde37cf98e7f7 [2021-10-28 23:18:51,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:18:51,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:18:51,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:18:51,924 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:18:51,925 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:18:51,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c [2021-10-28 23:18:52,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/data/5269fc017/eb27d63cdb184a39a66618959fb54198/FLAGd7a06057a [2021-10-28 23:18:52,543 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:18:52,544 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c [2021-10-28 23:18:52,551 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/data/5269fc017/eb27d63cdb184a39a66618959fb54198/FLAGd7a06057a [2021-10-28 23:18:52,907 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/data/5269fc017/eb27d63cdb184a39a66618959fb54198 [2021-10-28 23:18:52,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:18:52,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:18:52,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:18:52,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:18:52,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:18:52,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:18:52" (1/1) ... [2021-10-28 23:18:52,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d1e5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:52, skipping insertion in model container [2021-10-28 23:18:52,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:18:52" (1/1) ... [2021-10-28 23:18:52,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:18:52,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:18:53,146 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_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c[538,551] [2021-10-28 23:18:53,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:18:53,193 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:18:53,208 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_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c[538,551] [2021-10-28 23:18:53,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:18:53,247 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:18:53,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53 WrapperNode [2021-10-28 23:18:53,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:18:53,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:18:53,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:18:53,252 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:18:53,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:18:53,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:18:53,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:18:53,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:18:53,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:18:53,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:18:53,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:18:53,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:18:53,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (1/1) ... [2021-10-28 23:18:53,364 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:18:53,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:53,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:53,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:18:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:18:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:18:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:18:53,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:18:53,790 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:18:53,790 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-28 23:18:53,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:18:53 BoogieIcfgContainer [2021-10-28 23:18:53,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:18:53,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:18:53,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:18:53,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:18:53,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:18:52" (1/3) ... [2021-10-28 23:18:53,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438a99ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:18:53, skipping insertion in model container [2021-10-28 23:18:53,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:18:53" (2/3) ... [2021-10-28 23:18:53,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438a99ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:18:53, skipping insertion in model container [2021-10-28 23:18:53,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:18:53" (3/3) ... [2021-10-28 23:18:53,813 INFO L111 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound10.c [2021-10-28 23:18:53,819 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:18:53,821 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-28 23:18:53,885 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:18:53,895 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:18:53,895 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-28 23:18:53,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 42 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:53,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:18:53,917 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:53,918 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:53,918 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 23:18:53,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:53,925 INFO L85 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2021-10-28 23:18:53,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:53,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133662697] [2021-10-28 23:18:53,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:53,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:54,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:54,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:54,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133662697] [2021-10-28 23:18:54,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133662697] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:54,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:54,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:18:54,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327921406] [2021-10-28 23:18:54,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:18:54,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:54,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:18:54,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:18:54,167 INFO L87 Difference]: Start difference. First operand has 43 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 42 states have internal predecessors, (59), 0 states have call successors, (0), 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 23:18:54,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:54,194 INFO L93 Difference]: Finished difference Result 83 states and 114 transitions. [2021-10-28 23:18:54,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:18:54,195 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 23:18:54,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:54,204 INFO L225 Difference]: With dead ends: 83 [2021-10-28 23:18:54,205 INFO L226 Difference]: Without dead ends: 39 [2021-10-28 23:18:54,208 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 23:18:54,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-28 23:18:54,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-28 23:18:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.28125) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:54,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-10-28 23:18:54,247 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2021-10-28 23:18:54,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:54,247 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-10-28 23:18:54,247 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 23:18:54,248 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-10-28 23:18:54,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:18:54,249 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:54,249 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:54,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:18:54,250 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 23:18:54,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:54,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2021-10-28 23:18:54,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:54,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938341218] [2021-10-28 23:18:54,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:54,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:54,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:54,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:54,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938341218] [2021-10-28 23:18:54,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938341218] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:54,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:54,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:18:54,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921388303] [2021-10-28 23:18:54,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:18:54,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:54,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:18:54,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:18:54,368 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:54,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:54,468 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2021-10-28 23:18:54,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:18:54,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-28 23:18:54,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:54,470 INFO L225 Difference]: With dead ends: 58 [2021-10-28 23:18:54,471 INFO L226 Difference]: Without dead ends: 56 [2021-10-28 23:18:54,471 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:18:54,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-28 23:18:54,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 37. [2021-10-28 23:18:54,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 36 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 23:18:54,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-10-28 23:18:54,479 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 11 [2021-10-28 23:18:54,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:54,480 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-10-28 23:18:54,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:54,480 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-10-28 23:18:54,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 23:18:54,481 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:54,481 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:54,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:18:54,482 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 23:18:54,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:54,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2021-10-28 23:18:54,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:54,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325031355] [2021-10-28 23:18:54,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:54,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:54,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:54,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325031355] [2021-10-28 23:18:54,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325031355] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:54,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:54,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:18:54,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090489636] [2021-10-28 23:18:54,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:18:54,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:54,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:18:54,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:18:54,565 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:54,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:54,632 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2021-10-28 23:18:54,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:18:54,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-28 23:18:54,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:54,634 INFO L225 Difference]: With dead ends: 56 [2021-10-28 23:18:54,634 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 23:18:54,634 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:18:54,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 23:18:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 35. [2021-10-28 23:18:54,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:54,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-10-28 23:18:54,642 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 13 [2021-10-28 23:18:54,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:54,643 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-10-28 23:18:54,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:54,643 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-10-28 23:18:54,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:18:54,644 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:54,644 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:54,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:18:54,644 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 23:18:54,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:54,645 INFO L85 PathProgramCache]: Analyzing trace with hash 999399167, now seen corresponding path program 1 times [2021-10-28 23:18:54,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:54,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664795861] [2021-10-28 23:18:54,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:54,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:54,662 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:18:54,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931982263] [2021-10-28 23:18:54,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:54,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:18:54,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:54,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:18:54,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:18:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:54,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:18:54,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:55,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:55,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:55,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664795861] [2021-10-28 23:18:55,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:18:55,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931982263] [2021-10-28 23:18:55,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931982263] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:55,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:55,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:18:55,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56189656] [2021-10-28 23:18:55,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:18:55,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:55,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:18:55,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:18:55,053 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:55,169 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2021-10-28 23:18:55,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:18:55,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2021-10-28 23:18:55,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:55,172 INFO L225 Difference]: With dead ends: 76 [2021-10-28 23:18:55,172 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 23:18:55,173 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:18:55,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 23:18:55,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2021-10-28 23:18:55,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 48 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 23:18:55,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2021-10-28 23:18:55,186 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 15 [2021-10-28 23:18:55,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:55,187 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2021-10-28 23:18:55,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:55,188 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2021-10-28 23:18:55,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:18:55,189 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:55,189 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:55,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:55,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-10-28 23:18:55,406 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:18:55,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:55,407 INFO L85 PathProgramCache]: Analyzing trace with hash 392223696, now seen corresponding path program 1 times [2021-10-28 23:18:55,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:55,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570759778] [2021-10-28 23:18:55,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:55,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:55,439 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:18:55,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1936703578] [2021-10-28 23:18:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:55,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:18:55,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:55,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:18:55,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:18:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:55,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:18:55,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:55,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:55,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:55,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570759778] [2021-10-28 23:18:55,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:18:55,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936703578] [2021-10-28 23:18:55,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936703578] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:55,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:55,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:18:55,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136785315] [2021-10-28 23:18:55,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:18:55,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:55,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:18:55,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:18:55,897 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:56,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:56,081 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2021-10-28 23:18:56,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:18:56,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-28 23:18:56,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:56,083 INFO L225 Difference]: With dead ends: 53 [2021-10-28 23:18:56,084 INFO L226 Difference]: Without dead ends: 42 [2021-10-28 23:18:56,085 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:18:56,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-28 23:18:56,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-28 23:18:56,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 41 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 23:18:56,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-10-28 23:18:56,094 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 18 [2021-10-28 23:18:56,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:56,094 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-10-28 23:18:56,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:56,095 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-10-28 23:18:56,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:18:56,110 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:56,111 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:56,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:56,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:18:56,326 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 23:18:56,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:56,326 INFO L85 PathProgramCache]: Analyzing trace with hash 434992196, now seen corresponding path program 1 times [2021-10-28 23:18:56,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:56,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931123934] [2021-10-28 23:18:56,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:56,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:56,360 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:18:56,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1473169367] [2021-10-28 23:18:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:56,361 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:18:56,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:56,363 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:18:56,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:18:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:56,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:18:56,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:56,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:56,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:56,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931123934] [2021-10-28 23:18:56,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:18:56,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473169367] [2021-10-28 23:18:56,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473169367] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:18:56,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:18:56,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 23:18:56,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394295298] [2021-10-28 23:18:56,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:18:56,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:56,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:18:56,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:18:56,758 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:57,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:57,065 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2021-10-28 23:18:57,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:18:57,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-28 23:18:57,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:57,067 INFO L225 Difference]: With dead ends: 91 [2021-10-28 23:18:57,067 INFO L226 Difference]: Without dead ends: 69 [2021-10-28 23:18:57,068 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 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 23:18:57,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-28 23:18:57,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2021-10-28 23:18:57,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 61 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:57,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2021-10-28 23:18:57,092 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 22 [2021-10-28 23:18:57,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:57,092 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2021-10-28 23:18:57,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:57,093 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2021-10-28 23:18:57,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:18:57,095 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:57,095 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:57,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:57,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 23:18:57,310 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:18:57,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:57,310 INFO L85 PathProgramCache]: Analyzing trace with hash 941114475, now seen corresponding path program 1 times [2021-10-28 23:18:57,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:57,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369382060] [2021-10-28 23:18:57,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:57,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:57,327 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:18:57,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [72246507] [2021-10-28 23:18:57,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:57,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:18:57,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:57,329 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:18:57,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:18:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:57,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:18:57,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:58,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:58,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369382060] [2021-10-28 23:18:58,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:18:58,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72246507] [2021-10-28 23:18:58,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72246507] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:18:58,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:18:58,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-28 23:18:58,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799050569] [2021-10-28 23:18:58,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:18:58,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:58,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:18:58,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:18:58,025 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 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 23:18:58,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:58,393 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions. [2021-10-28 23:18:58,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:18:58,394 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 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 23:18:58,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:58,395 INFO L225 Difference]: With dead ends: 73 [2021-10-28 23:18:58,395 INFO L226 Difference]: Without dead ends: 62 [2021-10-28 23:18:58,396 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:18:58,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-28 23:18:58,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-10-28 23:18:58,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 57 states have (on average 1.1578947368421053) internal successors, (66), 61 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 23:18:58,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2021-10-28 23:18:58,405 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 25 [2021-10-28 23:18:58,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:58,405 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2021-10-28 23:18:58,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 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 23:18:58,406 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2021-10-28 23:18:58,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:18:58,407 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:58,407 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:58,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:58,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:18:58,626 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 23:18:58,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:58,626 INFO L85 PathProgramCache]: Analyzing trace with hash -919005345, now seen corresponding path program 2 times [2021-10-28 23:18:58,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:58,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431970124] [2021-10-28 23:18:58,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:58,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:58,640 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:18:58,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1590948995] [2021-10-28 23:18:58,643 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:18:58,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:18:58,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:58,651 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:18:58,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:18:58,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:18:58,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:18:58,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:18:58,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:59,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:59,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431970124] [2021-10-28 23:18:59,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:18:59,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590948995] [2021-10-28 23:18:59,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590948995] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:18:59,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:18:59,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 23:18:59,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96416733] [2021-10-28 23:18:59,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:18:59,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:59,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:18:59,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:18:59,064 INFO L87 Difference]: Start difference. First operand 62 states and 66 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 23:18:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:59,283 INFO L93 Difference]: Finished difference Result 119 states and 133 transitions. [2021-10-28 23:18:59,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:18:59,284 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 29 [2021-10-28 23:18:59,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:59,285 INFO L225 Difference]: With dead ends: 119 [2021-10-28 23:18:59,285 INFO L226 Difference]: Without dead ends: 97 [2021-10-28 23:18:59,286 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:18:59,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-28 23:18:59,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 81. [2021-10-28 23:18:59,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 80 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:59,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2021-10-28 23:18:59,306 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 29 [2021-10-28 23:18:59,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:59,308 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2021-10-28 23:18:59,308 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 23:18:59,308 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2021-10-28 23:18:59,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:18:59,309 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:59,310 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:59,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:59,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-28 23:18:59,528 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:18:59,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:59,529 INFO L85 PathProgramCache]: Analyzing trace with hash -36466664, now seen corresponding path program 1 times [2021-10-28 23:18:59,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:59,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130405566] [2021-10-28 23:18:59,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:59,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:59,552 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:18:59,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2114411783] [2021-10-28 23:18:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:59,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:18:59,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:59,559 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:18:59,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 23:18:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:59,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-28 23:18:59,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:00,475 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:19:00,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:19:00,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130405566] [2021-10-28 23:19:00,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:19:00,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114411783] [2021-10-28 23:19:00,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114411783] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:19:00,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:19:00,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-28 23:19:00,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341106089] [2021-10-28 23:19:00,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:19:00,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:19:00,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:19:00,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:19:00,483 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:00,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:19:00,800 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2021-10-28 23:19:00,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:19:00,802 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-28 23:19:00,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:19:00,804 INFO L225 Difference]: With dead ends: 92 [2021-10-28 23:19:00,804 INFO L226 Difference]: Without dead ends: 90 [2021-10-28 23:19:00,805 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:19:00,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-10-28 23:19:00,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2021-10-28 23:19:00,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 78 states have (on average 1.1794871794871795) internal successors, (92), 82 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:00,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2021-10-28 23:19:00,828 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 31 [2021-10-28 23:19:00,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:19:00,828 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2021-10-28 23:19:00,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:00,829 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2021-10-28 23:19:00,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 23:19:00,837 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:19:00,837 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:19:00,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:01,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:19:01,054 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:19:01,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:01,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1961752720, now seen corresponding path program 2 times [2021-10-28 23:19:01,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:01,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206042847] [2021-10-28 23:19:01,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:01,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:01,087 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:19:01,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076352462] [2021-10-28 23:19:01,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:19:01,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:19:01,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:01,089 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:19:01,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 23:19:01,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:19:01,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:19:01,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:19:01,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:01,823 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 23:19:01,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:19:01,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206042847] [2021-10-28 23:19:01,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:19:01,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076352462] [2021-10-28 23:19:01,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076352462] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:19:01,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:19:01,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:19:01,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546898336] [2021-10-28 23:19:01,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:19:01,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:19:01,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:19:01,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:19:01,827 INFO L87 Difference]: Start difference. First operand 83 states and 92 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:02,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:19:02,053 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2021-10-28 23:19:02,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:19:02,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-28 23:19:02,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:19:02,055 INFO L225 Difference]: With dead ends: 114 [2021-10-28 23:19:02,055 INFO L226 Difference]: Without dead ends: 103 [2021-10-28 23:19:02,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:19:02,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-28 23:19:02,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2021-10-28 23:19:02,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 92 states have (on average 1.173913043478261) internal successors, (108), 96 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:02,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2021-10-28 23:19:02,070 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 32 [2021-10-28 23:19:02,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:19:02,071 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2021-10-28 23:19:02,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:02,071 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2021-10-28 23:19:02,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 23:19:02,072 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:19:02,072 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:19:02,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:02,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:19:02,297 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:19:02,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:02,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1455744328, now seen corresponding path program 1 times [2021-10-28 23:19:02,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:02,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749710741] [2021-10-28 23:19:02,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:02,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:02,310 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:19:02,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1557830845] [2021-10-28 23:19:02,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:02,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:19:02,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:02,312 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:19:02,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 23:19:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:02,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 23:19:02,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:03,213 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:19:03,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:19:03,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749710741] [2021-10-28 23:19:03,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:19:03,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557830845] [2021-10-28 23:19:03,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557830845] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:19:03,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:19:03,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-28 23:19:03,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804145075] [2021-10-28 23:19:03,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:19:03,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:19:03,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:19:03,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:19:03,216 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:03,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:19:03,504 INFO L93 Difference]: Finished difference Result 156 states and 171 transitions. [2021-10-28 23:19:03,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:19:03,505 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-28 23:19:03,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:19:03,506 INFO L225 Difference]: With dead ends: 156 [2021-10-28 23:19:03,506 INFO L226 Difference]: Without dead ends: 104 [2021-10-28 23:19:03,506 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:19:03,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-10-28 23:19:03,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 88. [2021-10-28 23:19:03,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 87 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:03,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2021-10-28 23:19:03,518 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 36 [2021-10-28 23:19:03,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:19:03,518 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2021-10-28 23:19:03,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:03,518 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2021-10-28 23:19:03,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 23:19:03,519 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:19:03,519 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:19:03,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:03,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-28 23:19:03,738 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:19:03,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:03,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1277177884, now seen corresponding path program 3 times [2021-10-28 23:19:03,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:03,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520377114] [2021-10-28 23:19:03,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:03,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:03,751 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:19:03,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1789036984] [2021-10-28 23:19:03,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:19:03,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:19:03,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:03,753 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:19:03,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 23:19:04,008 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-28 23:19:04,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:19:04,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:19:04,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:04,331 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-28 23:19:04,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:19:04,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520377114] [2021-10-28 23:19:04,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:19:04,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789036984] [2021-10-28 23:19:04,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789036984] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:19:04,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:19:04,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 23:19:04,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205892806] [2021-10-28 23:19:04,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:19:04,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:19:04,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:19:04,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:19:04,335 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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 23:19:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:19:12,402 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2021-10-28 23:19:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:19:12,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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 36 [2021-10-28 23:19:12,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:19:12,404 INFO L225 Difference]: With dead ends: 98 [2021-10-28 23:19:12,404 INFO L226 Difference]: Without dead ends: 88 [2021-10-28 23:19:12,404 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:19:12,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-28 23:19:12,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2021-10-28 23:19:12,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.146341463414634) internal successors, (94), 85 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 23:19:12,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2021-10-28 23:19:12,434 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 36 [2021-10-28 23:19:12,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:19:12,434 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2021-10-28 23:19:12,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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 23:19:12,435 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2021-10-28 23:19:12,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 23:19:12,436 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:19:12,436 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:19:12,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:12,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:19:12,662 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:19:12,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:12,662 INFO L85 PathProgramCache]: Analyzing trace with hash -642892963, now seen corresponding path program 2 times [2021-10-28 23:19:12,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:12,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906724756] [2021-10-28 23:19:12,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:12,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:12,672 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:19:12,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [372716679] [2021-10-28 23:19:12,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:19:12,673 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:19:12,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:12,674 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:19:12,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 23:19:13,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:19:13,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:19:13,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-28 23:19:13,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:19:14,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:19:14,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906724756] [2021-10-28 23:19:14,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:19:14,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372716679] [2021-10-28 23:19:14,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372716679] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:19:14,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:19:14,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-10-28 23:19:14,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447715693] [2021-10-28 23:19:14,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:19:14,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:19:14,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:19:14,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:19:14,025 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:14,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:19:14,939 INFO L93 Difference]: Finished difference Result 98 states and 105 transitions. [2021-10-28 23:19:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:19:14,940 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 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 38 [2021-10-28 23:19:14,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:19:14,941 INFO L225 Difference]: With dead ends: 98 [2021-10-28 23:19:14,941 INFO L226 Difference]: Without dead ends: 96 [2021-10-28 23:19:14,942 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:19:14,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-28 23:19:14,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2021-10-28 23:19:14,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.130952380952381) internal successors, (95), 87 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:14,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2021-10-28 23:19:14,957 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 38 [2021-10-28 23:19:14,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:19:14,959 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2021-10-28 23:19:14,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:14,959 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2021-10-28 23:19:14,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 23:19:14,960 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:19:14,960 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:19:15,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:15,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-28 23:19:15,174 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:19:15,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:15,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1707275894, now seen corresponding path program 3 times [2021-10-28 23:19:15,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:15,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757236558] [2021-10-28 23:19:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:15,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:15,195 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:19:15,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [637616765] [2021-10-28 23:19:15,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:19:15,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:19:15,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:15,197 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:19:15,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 23:19:15,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-28 23:19:15,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:19:15,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 54 conjunts are in the unsatisfiable core [2021-10-28 23:19:15,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:17,162 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:19:17,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:19:17,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757236558] [2021-10-28 23:19:17,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:19:17,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637616765] [2021-10-28 23:19:17,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637616765] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:19:17,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:19:17,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-10-28 23:19:17,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201118116] [2021-10-28 23:19:17,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:19:17,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:19:17,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:19:17,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:19:17,168 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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 23:19:18,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:19:18,441 INFO L93 Difference]: Finished difference Result 100 states and 104 transitions. [2021-10-28 23:19:18,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:19:18,441 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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 23:19:18,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:19:18,442 INFO L225 Difference]: With dead ends: 100 [2021-10-28 23:19:18,442 INFO L226 Difference]: Without dead ends: 89 [2021-10-28 23:19:18,443 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2021-10-28 23:19:18,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-28 23:19:18,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2021-10-28 23:19:18,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.1097560975609757) internal successors, (91), 85 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 23:19:18,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-10-28 23:19:18,453 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 44 [2021-10-28 23:19:18,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:19:18,454 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-10-28 23:19:18,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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 23:19:18,454 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-10-28 23:19:18,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 23:19:18,455 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:19:18,455 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:19:18,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:18,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 23:19:18,676 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:19:18,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:18,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1027491960, now seen corresponding path program 4 times [2021-10-28 23:19:18,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:18,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988069708] [2021-10-28 23:19:18,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:18,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:18,693 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:19:18,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [845798065] [2021-10-28 23:19:18,700 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:19:18,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:19:18,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:18,701 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:19:18,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 23:19:19,254 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:19:19,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:19:19,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-28 23:19:19,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:20,233 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:19:20,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:19:20,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988069708] [2021-10-28 23:19:20,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:19:20,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845798065] [2021-10-28 23:19:20,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845798065] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:19:20,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:19:20,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-10-28 23:19:20,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960072884] [2021-10-28 23:19:20,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:19:20,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:19:20,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:19:20,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:19:20,239 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:20,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:19:20,945 INFO L93 Difference]: Finished difference Result 125 states and 134 transitions. [2021-10-28 23:19:20,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:19:20,946 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-28 23:19:20,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:19:20,947 INFO L225 Difference]: With dead ends: 125 [2021-10-28 23:19:20,947 INFO L226 Difference]: Without dead ends: 123 [2021-10-28 23:19:20,947 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:19:20,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-28 23:19:20,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 110. [2021-10-28 23:19:20,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 106 states have (on average 1.1320754716981132) internal successors, (120), 109 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:20,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2021-10-28 23:19:20,959 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 45 [2021-10-28 23:19:20,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:19:20,960 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2021-10-28 23:19:20,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:19:20,960 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2021-10-28 23:19:20,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-28 23:19:20,961 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:19:20,961 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:19:21,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:21,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-28 23:19:21,186 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:19:21,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:21,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1554139002, now seen corresponding path program 2 times [2021-10-28 23:19:21,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:21,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407744488] [2021-10-28 23:19:21,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:21,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:21,207 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:19:21,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1827453983] [2021-10-28 23:19:21,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:19:21,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:19:21,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:21,212 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:19:21,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 23:19:21,642 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:19:21,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:19:21,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:19:21,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-28 23:19:47,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:19:47,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407744488] [2021-10-28 23:19:47,031 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:19:47,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827453983] [2021-10-28 23:19:47,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827453983] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:19:47,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:19:47,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:19:47,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527662733] [2021-10-28 23:19:47,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:19:47,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:19:47,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:19:47,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=40, Unknown=3, NotChecked=0, Total=56 [2021-10-28 23:19:47,033 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:20:01,420 WARN L207 SmtUtils]: Spent 14.37 s on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2021-10-28 23:20:17,716 WARN L207 SmtUtils]: Spent 16.26 s on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2021-10-28 23:20:34,194 WARN L207 SmtUtils]: Spent 16.30 s on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2021-10-28 23:20:50,441 WARN L207 SmtUtils]: Spent 16.19 s on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2021-10-28 23:21:12,964 WARN L207 SmtUtils]: Spent 22.36 s on a formula simplification. DAG size of input: 46 DAG size of output: 29 [2021-10-28 23:21:49,656 WARN L207 SmtUtils]: Spent 16.25 s on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-10-28 23:22:04,142 WARN L207 SmtUtils]: Spent 14.42 s on a formula simplification. DAG size of input: 49 DAG size of output: 33 [2021-10-28 23:22:18,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:22:18,214 INFO L93 Difference]: Finished difference Result 114 states and 124 transitions. [2021-10-28 23:22:18,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:22:18,215 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 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 49 [2021-10-28 23:22:18,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:22:18,216 INFO L225 Difference]: With dead ends: 114 [2021-10-28 23:22:18,216 INFO L226 Difference]: Without dead ends: 91 [2021-10-28 23:22:18,217 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 137.8s TimeCoverageRelationStatistics Valid=75, Invalid=155, Unknown=10, NotChecked=0, Total=240 [2021-10-28 23:22:18,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-28 23:22:18,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 79. [2021-10-28 23:22:18,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 76 states have (on average 1.0921052631578947) internal successors, (83), 78 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:18,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2021-10-28 23:22:18,227 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 49 [2021-10-28 23:22:18,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:22:18,228 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2021-10-28 23:22:18,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:18,228 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2021-10-28 23:22:18,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 23:22:18,229 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:22:18,229 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:18,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:18,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-28 23:22:18,433 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:22:18,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:18,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1461163621, now seen corresponding path program 5 times [2021-10-28 23:22:18,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:18,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127399635] [2021-10-28 23:22:18,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:18,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:18,442 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:22:18,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735701550] [2021-10-28 23:22:18,443 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:22:18,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:22:18,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:18,465 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:22:18,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-28 23:22:19,081 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-28 23:22:19,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:22:19,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 57 conjunts are in the unsatisfiable core [2021-10-28 23:22:19,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:22:20,654 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 23:22:20,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:22:20,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127399635] [2021-10-28 23:22:20,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:22:20,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735701550] [2021-10-28 23:22:20,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735701550] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:22:20,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:22:20,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-10-28 23:22:20,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627749388] [2021-10-28 23:22:20,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:22:20,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:22:20,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:22:20,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:22:20,658 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:21,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:22:21,759 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2021-10-28 23:22:21,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:22:21,760 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-10-28 23:22:21,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:22:21,761 INFO L225 Difference]: With dead ends: 118 [2021-10-28 23:22:21,761 INFO L226 Difference]: Without dead ends: 108 [2021-10-28 23:22:21,762 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2021-10-28 23:22:21,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-28 23:22:21,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 88. [2021-10-28 23:22:21,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 85 states have (on average 1.0941176470588236) internal successors, (93), 87 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 23:22:21,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2021-10-28 23:22:21,775 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 51 [2021-10-28 23:22:21,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:22:21,775 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2021-10-28 23:22:21,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:21,776 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2021-10-28 23:22:21,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 23:22:21,776 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:22:21,777 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:21,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:21,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-28 23:22:21,998 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:22:21,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:21,998 INFO L85 PathProgramCache]: Analyzing trace with hash 464869117, now seen corresponding path program 6 times [2021-10-28 23:22:21,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:21,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108338745] [2021-10-28 23:22:21,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:21,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:22,021 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:22:22,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [477017857] [2021-10-28 23:22:22,024 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:22:22,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:22:22,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:22,026 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:22:22,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 23:22:22,634 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-10-28 23:22:22,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:22:22,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-28 23:22:22,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:22:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 21 proven. 30 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 23:22:43,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:22:43,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108338745] [2021-10-28 23:22:43,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:22:43,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477017857] [2021-10-28 23:22:43,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477017857] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:22:43,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:22:43,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-10-28 23:22:43,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357069746] [2021-10-28 23:22:43,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:22:43,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:22:43,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:22:43,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=80, Unknown=1, NotChecked=0, Total=110 [2021-10-28 23:22:43,572 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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 23:22:57,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:22:57,983 INFO L93 Difference]: Finished difference Result 104 states and 109 transitions. [2021-10-28 23:22:57,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:22:57,984 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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 52 [2021-10-28 23:22:57,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:22:57,985 INFO L225 Difference]: With dead ends: 104 [2021-10-28 23:22:57,985 INFO L226 Difference]: Without dead ends: 102 [2021-10-28 23:22:57,986 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=67, Invalid=204, Unknown=1, NotChecked=0, Total=272 [2021-10-28 23:22:57,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-28 23:22:57,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 88. [2021-10-28 23:22:58,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 85 states have (on average 1.0823529411764705) internal successors, (92), 87 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:58,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2021-10-28 23:22:58,001 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 52 [2021-10-28 23:22:58,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:22:58,001 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2021-10-28 23:22:58,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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 23:22:58,001 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2021-10-28 23:22:58,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 23:22:58,002 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:22:58,002 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:58,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:58,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-28 23:22:58,218 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:22:58,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:58,218 INFO L85 PathProgramCache]: Analyzing trace with hash -275908280, now seen corresponding path program 1 times [2021-10-28 23:22:58,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:58,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807067104] [2021-10-28 23:22:58,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:58,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:58,246 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:22:58,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1263223369] [2021-10-28 23:22:58,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:58,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:22:58,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:58,248 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:22:58,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 23:22:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:58,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 23:22:58,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:00,071 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:00,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:23:00,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807067104] [2021-10-28 23:23:00,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:23:00,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263223369] [2021-10-28 23:23:00,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263223369] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:23:00,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:23:00,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-28 23:23:00,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643319091] [2021-10-28 23:23:00,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:23:00,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:23:00,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:23:00,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:23:00,073 INFO L87 Difference]: Start difference. First operand 88 states and 92 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 23:23:01,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:01,049 INFO L93 Difference]: Finished difference Result 126 states and 136 transitions. [2021-10-28 23:23:01,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 23:23:01,049 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 23:23:01,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:01,050 INFO L225 Difference]: With dead ends: 126 [2021-10-28 23:23:01,050 INFO L226 Difference]: Without dead ends: 99 [2021-10-28 23:23:01,051 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=159, Invalid=897, Unknown=0, NotChecked=0, Total=1056 [2021-10-28 23:23:01,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-28 23:23:01,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2021-10-28 23:23:01,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 88 states have (on average 1.0795454545454546) internal successors, (95), 90 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2021-10-28 23:23:01,067 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 53 [2021-10-28 23:23:01,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:01,068 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2021-10-28 23:23:01,068 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 23:23:01,068 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2021-10-28 23:23:01,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-28 23:23:01,069 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:01,069 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:01,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:01,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:01,290 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:23:01,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:01,290 INFO L85 PathProgramCache]: Analyzing trace with hash 589823634, now seen corresponding path program 7 times [2021-10-28 23:23:01,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:23:01,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930357041] [2021-10-28 23:23:01,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:01,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:23:01,317 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:23:01,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [958257918] [2021-10-28 23:23:01,318 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:23:01,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:01,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:23:01,319 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:23:01,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 23:23:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:01,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 60 conjunts are in the unsatisfiable core [2021-10-28 23:23:01,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:03,670 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:03,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:23:03,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930357041] [2021-10-28 23:23:03,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:23:03,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958257918] [2021-10-28 23:23:03,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958257918] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:23:03,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:23:03,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-10-28 23:23:03,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935368753] [2021-10-28 23:23:03,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 23:23:03,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:23:03,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 23:23:03,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:23:03,673 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 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 23:23:04,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:04,700 INFO L93 Difference]: Finished difference Result 102 states and 105 transitions. [2021-10-28 23:23:04,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:23:04,701 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 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 23:23:04,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:04,702 INFO L225 Difference]: With dead ends: 102 [2021-10-28 23:23:04,702 INFO L226 Difference]: Without dead ends: 92 [2021-10-28 23:23:04,703 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-28 23:23:04,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-28 23:23:04,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2021-10-28 23:23:04,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 88 states have (on average 1.0681818181818181) internal successors, (94), 90 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 23:23:04,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 94 transitions. [2021-10-28 23:23:04,715 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 94 transitions. Word has length 57 [2021-10-28 23:23:04,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:04,715 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 94 transitions. [2021-10-28 23:23:04,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 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 23:23:04,716 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 94 transitions. [2021-10-28 23:23:04,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-28 23:23:04,717 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:04,717 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:04,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:04,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:04,942 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:23:04,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:04,942 INFO L85 PathProgramCache]: Analyzing trace with hash 196796624, now seen corresponding path program 1 times [2021-10-28 23:23:04,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:23:04,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125197270] [2021-10-28 23:23:04,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:04,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:23:04,955 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:23:04,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137230520] [2021-10-28 23:23:04,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:04,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:04,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:23:04,958 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:23:04,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-28 23:23:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:05,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 56 conjunts are in the unsatisfiable core [2021-10-28 23:23:05,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:07,148 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:07,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:23:07,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125197270] [2021-10-28 23:23:07,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:23:07,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137230520] [2021-10-28 23:23:07,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137230520] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:23:07,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:23:07,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-10-28 23:23:07,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518398494] [2021-10-28 23:23:07,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:23:07,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:23:07,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:23:07,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:23:07,151 INFO L87 Difference]: Start difference. First operand 91 states and 94 transitions. Second operand has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 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 23:23:07,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:07,930 INFO L93 Difference]: Finished difference Result 94 states and 96 transitions. [2021-10-28 23:23:07,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:23:07,931 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 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 23:23:07,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:07,931 INFO L225 Difference]: With dead ends: 94 [2021-10-28 23:23:07,931 INFO L226 Difference]: Without dead ends: 72 [2021-10-28 23:23:07,932 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2021-10-28 23:23:07,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-28 23:23:07,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2021-10-28 23:23:07,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 68 states have (on average 1.0735294117647058) internal successors, (73), 70 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:07,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2021-10-28 23:23:07,943 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 57 [2021-10-28 23:23:07,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:07,944 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2021-10-28 23:23:07,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 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 23:23:07,944 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2021-10-28 23:23:07,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 23:23:07,945 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:07,945 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:07,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:08,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:08,145 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:23:08,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:08,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1395191082, now seen corresponding path program 8 times [2021-10-28 23:23:08,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:23:08,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333467149] [2021-10-28 23:23:08,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:08,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:23:08,166 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:23:08,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [542041939] [2021-10-28 23:23:08,171 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:23:08,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:08,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:23:08,172 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:23:08,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-28 23:23:08,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:23:08,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:23:08,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 23:23:08,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:10,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:23:10,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333467149] [2021-10-28 23:23:10,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:23:10,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542041939] [2021-10-28 23:23:10,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542041939] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:23:10,378 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:23:10,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-28 23:23:10,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474685364] [2021-10-28 23:23:10,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:23:10,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:23:10,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:23:10,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:23:10,380 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:11,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:11,621 INFO L93 Difference]: Finished difference Result 163 states and 170 transitions. [2021-10-28 23:23:11,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:23:11,622 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 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) Word has length 58 [2021-10-28 23:23:11,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:11,623 INFO L225 Difference]: With dead ends: 163 [2021-10-28 23:23:11,623 INFO L226 Difference]: Without dead ends: 128 [2021-10-28 23:23:11,624 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:23:11,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-28 23:23:11,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 73. [2021-10-28 23:23:11,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 70 states have (on average 1.0714285714285714) internal successors, (75), 72 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 23:23:11,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2021-10-28 23:23:11,639 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 58 [2021-10-28 23:23:11,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:11,639 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2021-10-28 23:23:11,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:11,640 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2021-10-28 23:23:11,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-28 23:23:11,640 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:11,641 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:11,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:11,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-28 23:23:11,850 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:23:11,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:11,850 INFO L85 PathProgramCache]: Analyzing trace with hash 251811542, now seen corresponding path program 1 times [2021-10-28 23:23:11,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:23:11,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849997571] [2021-10-28 23:23:11,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:11,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:23:11,871 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:23:11,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484441135] [2021-10-28 23:23:11,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:11,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:11,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:23:11,873 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:23:11,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-28 23:23:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:12,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:23:12,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:13,065 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 70 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:13,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:23:13,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849997571] [2021-10-28 23:23:13,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:23:13,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484441135] [2021-10-28 23:23:13,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484441135] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:23:13,067 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:23:13,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 23:23:13,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249143035] [2021-10-28 23:23:13,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:23:13,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:23:13,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:23:13,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:23:13,068 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:13,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:13,133 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2021-10-28 23:23:13,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:23:13,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2021-10-28 23:23:13,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:13,134 INFO L225 Difference]: With dead ends: 98 [2021-10-28 23:23:13,134 INFO L226 Difference]: Without dead ends: 92 [2021-10-28 23:23:13,135 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:23:13,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-28 23:23:13,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 86. [2021-10-28 23:23:13,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 83 states have (on average 1.0963855421686748) internal successors, (91), 85 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 23:23:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-10-28 23:23:13,151 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 59 [2021-10-28 23:23:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:13,152 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-10-28 23:23:13,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:13,152 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-10-28 23:23:13,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 23:23:13,153 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:13,153 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:13,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:13,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-28 23:23:13,362 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:23:13,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:13,362 INFO L85 PathProgramCache]: Analyzing trace with hash 806249483, now seen corresponding path program 1 times [2021-10-28 23:23:13,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:23:13,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298762679] [2021-10-28 23:23:13,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:13,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:23:13,374 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:23:13,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713078439] [2021-10-28 23:23:13,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:13,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:13,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:23:13,378 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:23:13,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-28 23:23:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:14,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 23:23:14,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:15,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:23:15,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298762679] [2021-10-28 23:23:15,740 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:23:15,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713078439] [2021-10-28 23:23:15,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713078439] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:23:15,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:23:15,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-28 23:23:15,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688945457] [2021-10-28 23:23:15,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:23:15,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:23:15,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:23:15,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:23:15,743 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:16,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:16,912 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2021-10-28 23:23:16,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:23:16,913 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-10-28 23:23:16,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:16,913 INFO L225 Difference]: With dead ends: 102 [2021-10-28 23:23:16,914 INFO L226 Difference]: Without dead ends: 75 [2021-10-28 23:23:16,916 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2021-10-28 23:23:16,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-28 23:23:16,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2021-10-28 23:23:16,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 72 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:16,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2021-10-28 23:23:16,934 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 60 [2021-10-28 23:23:16,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:16,934 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2021-10-28 23:23:16,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:16,935 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2021-10-28 23:23:16,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-28 23:23:16,935 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:16,936 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:16,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:17,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-28 23:23:17,158 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:23:17,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:17,158 INFO L85 PathProgramCache]: Analyzing trace with hash 69160917, now seen corresponding path program 2 times [2021-10-28 23:23:17,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:23:17,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775960176] [2021-10-28 23:23:17,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:17,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:23:17,173 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:23:17,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164526233] [2021-10-28 23:23:17,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:23:17,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:17,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:23:17,175 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:23:17,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-28 23:23:18,145 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:23:18,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:23:18,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 70 conjunts are in the unsatisfiable core [2021-10-28 23:23:18,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:20,306 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:20,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:23:20,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775960176] [2021-10-28 23:23:20,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:23:20,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164526233] [2021-10-28 23:23:20,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164526233] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:23:20,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:23:20,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-10-28 23:23:20,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382772740] [2021-10-28 23:23:20,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 23:23:20,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:23:20,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:23:20,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:23:20,309 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:21,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:21,775 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2021-10-28 23:23:21,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 23:23:21,776 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-10-28 23:23:21,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:21,776 INFO L225 Difference]: With dead ends: 80 [2021-10-28 23:23:21,777 INFO L226 Difference]: Without dead ends: 78 [2021-10-28 23:23:21,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 23:23:21,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-28 23:23:21,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2021-10-28 23:23:21,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:21,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2021-10-28 23:23:21,792 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 64 [2021-10-28 23:23:21,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:21,792 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2021-10-28 23:23:21,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:21,793 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2021-10-28 23:23:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-28 23:23:21,793 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:21,794 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:21,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:22,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:22,018 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:23:22,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:22,018 INFO L85 PathProgramCache]: Analyzing trace with hash 880468994, now seen corresponding path program 3 times [2021-10-28 23:23:22,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:23:22,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450614370] [2021-10-28 23:23:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:22,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:23:22,030 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:23:22,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768492480] [2021-10-28 23:23:22,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:23:22,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:22,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:23:22,031 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:23:22,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-28 23:23:23,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-28 23:23:23,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:23:23,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 84 conjunts are in the unsatisfiable core [2021-10-28 23:23:23,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:26,700 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 8 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:26,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:23:26,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450614370] [2021-10-28 23:23:26,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:23:26,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768492480] [2021-10-28 23:23:26,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768492480] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:23:26,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:23:26,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2021-10-28 23:23:26,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136278675] [2021-10-28 23:23:26,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 23:23:26,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:23:26,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 23:23:26,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:23:26,704 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:29,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:29,362 INFO L93 Difference]: Finished difference Result 81 states and 80 transitions. [2021-10-28 23:23:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:23:29,362 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2021-10-28 23:23:29,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:29,363 INFO L225 Difference]: With dead ends: 81 [2021-10-28 23:23:29,363 INFO L226 Difference]: Without dead ends: 71 [2021-10-28 23:23:29,364 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=242, Invalid=1240, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 23:23:29,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-28 23:23:29,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-28 23:23:29,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0) internal successors, (70), 70 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:29,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 70 transitions. [2021-10-28 23:23:29,374 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 70 transitions. Word has length 70 [2021-10-28 23:23:29,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:29,374 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 70 transitions. [2021-10-28 23:23:29,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:29,375 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 70 transitions. [2021-10-28 23:23:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-28 23:23:29,375 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:29,375 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:29,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:29,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-28 23:23:29,576 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:23:29,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:29,576 INFO L85 PathProgramCache]: Analyzing trace with hash 487441984, now seen corresponding path program 4 times [2021-10-28 23:23:29,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:23:29,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113170311] [2021-10-28 23:23:29,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:29,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:23:29,591 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:23:29,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [817070246] [2021-10-28 23:23:29,591 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:23:29,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:29,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:23:29,596 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:23:29,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-28 23:23:30,809 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:23:30,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:23:30,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 65 conjunts are in the unsatisfiable core [2021-10-28 23:23:30,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:33,390 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:33,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:23:33,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113170311] [2021-10-28 23:23:33,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:23:33,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817070246] [2021-10-28 23:23:33,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817070246] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:23:33,390 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:23:33,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2021-10-28 23:23:33,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268015795] [2021-10-28 23:23:33,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:23:33,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:23:33,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:23:33,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:23:33,392 INFO L87 Difference]: Start difference. First operand 71 states and 70 transitions. Second operand has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:34,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:34,491 INFO L93 Difference]: Finished difference Result 71 states and 70 transitions. [2021-10-28 23:23:34,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 23:23:34,492 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2021-10-28 23:23:34,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:34,492 INFO L225 Difference]: With dead ends: 71 [2021-10-28 23:23:34,492 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:23:34,493 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2021-10-28 23:23:34,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:23:34,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:23:34,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:34,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:23:34,494 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-10-28 23:23:34,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:34,494 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:23:34,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:23:34,494 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:23:34,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:23:34,497 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:34,497 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:34,497 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:34,498 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:34,498 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:34,498 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:34,498 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:34,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:34,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-28 23:23:34,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:23:34,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:23:34,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:23:35,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:23:35,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:23:35,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:23:35,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:23:35,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:23:35,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:23:35,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:23:41,167 WARN L207 SmtUtils]: Spent 5.03 s on a formula simplification. DAG size of input: 223 DAG size of output: 120 [2021-10-28 23:23:52,633 WARN L207 SmtUtils]: Spent 11.46 s on a formula simplification. DAG size of input: 255 DAG size of output: 117 [2021-10-28 23:24:03,378 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:24:03,378 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-10-28 23:24:03,378 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2021-10-28 23:24:03,378 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2021-10-28 23:24:03,378 INFO L853 garLoopResultBuilder]: At program point L36-2(lines 36 44) the Hoare annotation is: (let ((.cse15 (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2))) (.cse14 (mod ULTIMATE.start_main_~A~0 4294967296)) (.cse10 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse1 (* 2 .cse10)) (.cse3 (= (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 .cse10)) .cse14)) (.cse11 (<= 0 .cse15)) (.cse12 (<= .cse15 ULTIMATE.start_main_~r~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse13 (= ULTIMATE.start_main_~d~0 (* 2 (* (div (* ULTIMATE.start_main_~p~0 (- 1)) (- 2)) .cse10)))) (.cse8 (<= .cse10 10)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (<= 1 .cse10)) (.cse5 (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 10) 4294967296))) (.cse9 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_main_~r~0 .cse14)) (.cse7 (= (* .cse10 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (or (and .cse0 (<= .cse1 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~p~0 4) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse8 .cse4 .cse5 .cse9 (<= 1 ULTIMATE.start_main_~p~0) .cse6 (<= ULTIMATE.start_main_~d~0 .cse10) .cse7) (and .cse11 .cse12 .cse0 .cse13 .cse8 .cse2 (= ULTIMATE.start_main_~p~0 16) .cse4 .cse5 .cse9 .cse6) (and .cse12 .cse0 (= .cse1 ULTIMATE.start_main_~d~0) .cse2 .cse3 .cse5 (< (div (div (+ ULTIMATE.start_main_~d~0 (- 2)) 2) (- 4294967296)) 1) .cse6 (= ULTIMATE.start_main_~p~0 2)) (and .cse11 .cse12 .cse0 .cse13 .cse8 .cse2 .cse4 .cse5 .cse9 .cse6 (= ULTIMATE.start_main_~d~0 (* 8 .cse10)) .cse7)))) [2021-10-28 23:24:03,379 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:24:03,379 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:24:03,379 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:24:03,379 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-28 23:24:03,379 INFO L857 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-10-28 23:24:03,379 INFO L857 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2021-10-28 23:24:03,379 INFO L860 garLoopResultBuilder]: At program point L62(lines 22 63) the Hoare annotation is: true [2021-10-28 23:24:03,379 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:24:03,379 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2021-10-28 23:24:03,379 INFO L857 garLoopResultBuilder]: For program point L54-2(lines 22 63) no Hoare annotation was computed. [2021-10-28 23:24:03,380 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 46 58) no Hoare annotation was computed. [2021-10-28 23:24:03,380 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:24:03,380 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:24:03,380 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:24:03,380 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse3 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse6 (* 8 .cse3)) (.cse9 (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse10 (* 2 .cse3)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse8 (<= 1 .cse3)) (.cse2 (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 10) 4294967296))) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_main_~r~0 (mod ULTIMATE.start_main_~A~0 4294967296))) (.cse7 (= (* .cse3 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (or (and .cse0 .cse1 .cse2 (<= (* 4 .cse3) ULTIMATE.start_main_~r~0) .cse4 (< (div (div (div (div (+ ULTIMATE.start_main_~d~0 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~d~0 .cse6) .cse7) (and .cse0 (<= .cse3 10) .cse1 .cse8 .cse2 .cse4 (<= 1 ULTIMATE.start_main_~p~0) .cse5 (<= ULTIMATE.start_main_~d~0 .cse3) .cse7) (and .cse0 .cse1 (= ULTIMATE.start_main_~p~0 16) .cse2 (< (div (div (div (div (+ .cse9 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse4 .cse5 (<= .cse6 ULTIMATE.start_main_~r~0) .cse7) (and (<= .cse9 ULTIMATE.start_main_~r~0) .cse0 (= .cse10 ULTIMATE.start_main_~d~0) .cse1 .cse2 .cse4 (< (div (div (+ ULTIMATE.start_main_~d~0 (- 2)) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~p~0 2)) (and .cse0 (<= .cse10 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~p~0 4) .cse1 .cse8 .cse2 .cse4 .cse5 .cse7)))) [2021-10-28 23:24:03,380 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:24:03,380 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: (let ((.cse3 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse6 (* 8 .cse3)) (.cse9 (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse10 (* 2 .cse3)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse8 (<= 1 .cse3)) (.cse2 (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 10) 4294967296))) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_main_~r~0 (mod ULTIMATE.start_main_~A~0 4294967296))) (.cse7 (= (* .cse3 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (or (and .cse0 .cse1 .cse2 (<= (* 4 .cse3) ULTIMATE.start_main_~r~0) .cse4 (< (div (div (div (div (+ ULTIMATE.start_main_~d~0 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~d~0 .cse6) .cse7) (and .cse0 (<= .cse3 10) .cse1 .cse8 .cse2 .cse4 (<= 1 ULTIMATE.start_main_~p~0) .cse5 (<= ULTIMATE.start_main_~d~0 .cse3) .cse7) (and .cse0 .cse1 (= ULTIMATE.start_main_~p~0 16) .cse2 (< (div (div (div (div (+ .cse9 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse4 .cse5 (<= .cse6 ULTIMATE.start_main_~r~0) .cse7) (and (<= .cse9 ULTIMATE.start_main_~r~0) .cse0 (= .cse10 ULTIMATE.start_main_~d~0) .cse1 .cse2 .cse4 (< (div (div (+ ULTIMATE.start_main_~d~0 (- 2)) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~p~0 2)) (and .cse0 (<= .cse10 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~p~0 4) .cse1 .cse8 .cse2 .cse4 .cse5 .cse7)))) [2021-10-28 23:24:03,380 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:24:03,381 INFO L853 garLoopResultBuilder]: At program point L15-8(line 40) the Hoare annotation is: (let ((.cse3 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse9 (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2))) (.cse6 (* 8 .cse3)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse8 (<= 1 .cse3)) (.cse2 (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 10) 4294967296))) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_main_~r~0 (mod ULTIMATE.start_main_~A~0 4294967296))) (.cse7 (= (* .cse3 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (or (and .cse0 .cse1 .cse2 (<= (* 4 .cse3) ULTIMATE.start_main_~r~0) .cse4 (< (div (div (div (div (+ ULTIMATE.start_main_~d~0 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~d~0 .cse6) .cse7) (and .cse0 (<= .cse3 10) .cse1 .cse8 .cse2 .cse4 (<= 1 ULTIMATE.start_main_~p~0) .cse5 (<= ULTIMATE.start_main_~d~0 .cse3) .cse7) (and (<= .cse9 ULTIMATE.start_main_~r~0) .cse0 .cse1 .cse2 .cse4 (< (div (div (+ ULTIMATE.start_main_~d~0 (- 2)) 2) (- 4294967296)) 1) .cse5 .cse7 (= ULTIMATE.start_main_~p~0 2)) (and .cse0 .cse1 (= ULTIMATE.start_main_~p~0 16) .cse2 (< (div (div (div (div (+ .cse9 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse4 .cse5 (<= .cse6 ULTIMATE.start_main_~r~0) .cse7) (and .cse0 (<= (* 2 .cse3) ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~p~0 4) .cse1 .cse8 .cse2 .cse4 .cse5 .cse7)))) [2021-10-28 23:24:03,381 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:24:03,381 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse30 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse2 (* 2 .cse30)) (.cse33 (* ULTIMATE.start_main_~r~0 (- 1))) (.cse10 (mod ULTIMATE.start_main_~A~0 4294967296))) (let ((.cse25 (= (div (+ .cse33 .cse10) 2) ULTIMATE.start_main_~d~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse32 (* ULTIMATE.start_main_~d~0 (- 1))) (.cse21 (= .cse2 ULTIMATE.start_main_~d~0)) (.cse4 (<= .cse30 10)) (.cse5 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse14 (= (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 .cse30)) .cse10)) (.cse22 (<= 1 .cse30)) (.cse16 (<= 0 ULTIMATE.start_main_~r~0)) (.cse1 (* 4 .cse30)) (.cse11 (* 8 .cse30))) (let ((.cse3 (= ULTIMATE.start_main_~p~0 4)) (.cse23 (= ULTIMATE.start_main_~q~0 8)) (.cse24 (<= .cse11 .cse10)) (.cse28 (div (+ .cse33 10) 4294967296)) (.cse9 (or (and .cse0 .cse21 .cse5 .cse14 .cse16 .cse25) (and .cse0 (< 0 (+ (div (+ .cse32 (* .cse30 (- 4)) 10) 4294967296) 1)) .cse21 .cse4 .cse5 .cse14 .cse22 .cse16 (< ULTIMATE.start_main_~r~0 .cse1)))) (.cse26 (< .cse10 .cse1)) (.cse13 (<= .cse10 10)) (.cse29 (= ULTIMATE.start_main_~d~0 .cse11)) (.cse15 (= ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (.cse27 (<= .cse2 .cse10)) (.cse17 (+ ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0)) (.cse18 (= (* .cse30 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0)) (.cse31 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse19 (= ULTIMATE.start_main_~p~0 1)) (.cse20 (= ULTIMATE.start_main_~d~0 .cse30)) (.cse6 (= ULTIMATE.start_main_~q~0 0)) (.cse7 (= ULTIMATE.start_main_~r~0 .cse10)) (.cse8 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~d~0)) (.cse12 (= ULTIMATE.start_main_~p~0 2))) (or (and .cse0 (= .cse1 ULTIMATE.start_main_~d~0) (<= .cse2 ULTIMATE.start_main_~r~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse9 (< .cse10 .cse11) (= (+ .cse1 ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0) .cse10) .cse12) (and .cse0 .cse3 .cse5 .cse13 .cse14 .cse15 .cse16 (< .cse17 .cse11) .cse18) (and .cse0 (= .cse17 .cse10) .cse19 .cse4 .cse15 .cse16 .cse20 .cse8 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (and (or (and .cse0 .cse21 .cse4 .cse5 .cse13 .cse14 .cse22 .cse16 (= ULTIMATE.start_main_~q~0 10)) (and .cse0 .cse21 .cse4 .cse5 .cse13 .cse14 .cse23 .cse22 .cse24)) .cse8 .cse12) (and .cse0 .cse3 .cse4 .cse5 .cse13 .cse14 .cse23 .cse22 .cse24 .cse25) (and .cse0 .cse26 .cse19 .cse4 .cse5 .cse14 .cse20 (= ULTIMATE.start_main_~q~0 3) .cse27) (and .cse0 .cse5 (= ULTIMATE.start_main_~p~0 16) (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) .cse28) .cse6 .cse7 (<= .cse11 ULTIMATE.start_main_~r~0) .cse8 .cse18) (and .cse0 .cse5 .cse13 .cse14 .cse15 .cse29 .cse18 .cse24 (< .cse17 (* 16 .cse30))) (and (< 0 (+ .cse28 1)) .cse0 .cse19 .cse4 .cse5 .cse13 .cse14 .cse22 .cse20) (and (= ULTIMATE.start_main_~q~0 4) .cse9 .cse13 .cse8 .cse12) (and .cse0 (= (+ .cse2 ULTIMATE.start_main_~r~0) .cse10) .cse31 (= ULTIMATE.start_main_~q~0 2) .cse26 .cse19 .cse4 .cse27 .cse25) (and .cse0 .cse31 .cse19 .cse4 .cse22 .cse20 .cse6 .cse7) (and .cse0 .cse5 .cse13 (<= .cse1 ULTIMATE.start_main_~r~0) .cse6 .cse7 .cse29 .cse8 .cse18) (and .cse0 .cse4 .cse5 .cse14 .cse15 .cse27 (< .cse17 .cse1) .cse18 .cse12) (and .cse31 .cse19 .cse4 .cse20 .cse6 .cse7 (< ULTIMATE.start_main_~r~0 .cse30)) (and (<= (div .cse32 (- 2)) ULTIMATE.start_main_~r~0) .cse0 .cse21 .cse4 .cse5 .cse6 .cse7 .cse8 .cse12)))))) [2021-10-28 23:24:03,381 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:24:03,382 INFO L853 garLoopResultBuilder]: At program point L15-14(line 50) the Hoare annotation is: (let ((.cse32 (* ULTIMATE.start_main_~r~0 (- 1))) (.cse9 (mod ULTIMATE.start_main_~A~0 4294967296)) (.cse30 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse2 (* 2 .cse30)) (.cse10 (* 8 .cse30)) (.cse24 (= (div (+ .cse32 .cse9) 2) ULTIMATE.start_main_~d~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse31 (* ULTIMATE.start_main_~d~0 (- 1))) (.cse4 (<= .cse30 10)) (.cse5 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse13 (<= .cse9 10)) (.cse14 (= (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 .cse30)) .cse9)) (.cse16 (<= 1 .cse30)) (.cse26 (<= 0 ULTIMATE.start_main_~r~0)) (.cse1 (* 4 .cse30)) (.cse18 (= (* .cse30 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (let ((.cse11 (or (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse16 .cse26 .cse18 .cse24) (and .cse0 (< 0 (+ (div (+ .cse31 (* .cse30 (- 4)) 10) 4294967296) 1)) .cse4 .cse5 .cse13 .cse14 .cse16 .cse26 (< ULTIMATE.start_main_~r~0 .cse1) .cse18))) (.cse20 (div (+ .cse32 10) 4294967296)) (.cse25 (= ULTIMATE.start_main_~q~0 8)) (.cse19 (<= .cse10 .cse9)) (.cse22 (< .cse9 .cse1)) (.cse3 (= ULTIMATE.start_main_~p~0 4)) (.cse17 (= ULTIMATE.start_main_~d~0 .cse10)) (.cse15 (= ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (.cse23 (<= .cse2 .cse9)) (.cse28 (+ ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0)) (.cse27 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse29 (= ULTIMATE.start_main_~p~0 1)) (.cse21 (= ULTIMATE.start_main_~d~0 .cse30)) (.cse6 (= ULTIMATE.start_main_~q~0 0)) (.cse7 (= ULTIMATE.start_main_~r~0 .cse9)) (.cse8 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~d~0)) (.cse12 (= ULTIMATE.start_main_~p~0 2))) (or (and .cse0 (= .cse1 ULTIMATE.start_main_~d~0) (<= .cse2 ULTIMATE.start_main_~r~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and (< .cse9 .cse10) (= (+ .cse1 ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0) .cse9) .cse11 .cse12) (and (= ULTIMATE.start_main_~q~0 4) .cse8 .cse11 .cse12) (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) (and (< 0 (+ .cse20 1)) .cse0 .cse4 .cse5 .cse13 .cse14 .cse16 .cse21 .cse18) (and .cse0 .cse5 (= ULTIMATE.start_main_~p~0 16) (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) .cse20) .cse6 .cse7 (<= .cse10 ULTIMATE.start_main_~r~0) .cse8 .cse18) (and .cse0 (= (+ .cse2 ULTIMATE.start_main_~r~0) .cse9) (= ULTIMATE.start_main_~q~0 2) .cse22 .cse4 .cse5 .cse23 .cse18 .cse24) (and .cse8 (or (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse25 .cse16 .cse18 .cse19) (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse16 .cse26 (= ULTIMATE.start_main_~q~0 10) .cse18)) .cse12) (and .cse0 .cse27 (= .cse28 .cse9) .cse29 .cse4 .cse15 .cse26 .cse21 .cse8) (and .cse0 .cse27 .cse29 .cse4 .cse16 .cse21 .cse6 .cse7) (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse25 .cse16 .cse18 .cse19 .cse24) (and .cse0 .cse22 .cse4 .cse5 .cse14 .cse21 (= ULTIMATE.start_main_~q~0 3) .cse23 .cse18) (and .cse0 .cse3 (<= .cse1 .cse9) .cse4 .cse5 .cse13 .cse14 .cse15 .cse16 (< .cse28 .cse10) .cse18) (and .cse0 .cse5 .cse13 (<= .cse1 ULTIMATE.start_main_~r~0) .cse6 .cse7 .cse17 .cse8 .cse18) (and .cse0 .cse4 .cse5 .cse14 .cse15 .cse23 (< .cse28 .cse1) .cse18 .cse12) (and .cse27 .cse29 .cse4 .cse21 .cse6 .cse7 (< ULTIMATE.start_main_~r~0 .cse30)) (and (<= (div .cse31 (- 2)) ULTIMATE.start_main_~r~0) .cse0 (= .cse2 ULTIMATE.start_main_~d~0) .cse4 .cse5 .cse6 .cse7 .cse8 .cse12))))) [2021-10-28 23:24:03,383 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:24:03,383 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:24:03,383 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~d~0 (mod ULTIMATE.start_main_~B~0 4294967296)) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-28 23:24:03,383 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:24:03,383 INFO L860 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-10-28 23:24:03,384 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:24:03,384 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:24:03,384 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:24:03,384 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:24:03,384 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:24:03,385 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:24:03,385 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:24:03,385 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:24:03,385 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:24:03,385 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:24:03,389 INFO L731 BasicCegarLoop]: Path program histogram: [8, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:24:03,391 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:24:03,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:24:03 BoogieIcfgContainer [2021-10-28 23:24:03,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:24:03,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:24:03,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:24:03,448 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:24:03,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:18:53" (3/4) ... [2021-10-28 23:24:03,452 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:24:03,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-28 23:24:03,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:24:03,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:24:03,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:24:03,527 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:24:03,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:24:03,528 INFO L168 Benchmark]: Toolchain (without parser) took 310616.92 ms. Allocated memory was 123.7 MB in the beginning and 308.3 MB in the end (delta: 184.5 MB). Free memory was 86.8 MB in the beginning and 232.4 MB in the end (delta: -145.6 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:03,529 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 123.7 MB. Free memory is still 103.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:24:03,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.14 ms. Allocated memory is still 123.7 MB. Free memory was 86.5 MB in the beginning and 98.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:03,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.10 ms. Allocated memory is still 123.7 MB. Free memory was 98.9 MB in the beginning and 97.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:03,530 INFO L168 Benchmark]: Boogie Preprocessor took 42.84 ms. Allocated memory is still 123.7 MB. Free memory was 96.9 MB in the beginning and 96.1 MB in the end (delta: 852.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:03,530 INFO L168 Benchmark]: RCFGBuilder took 451.42 ms. Allocated memory is still 123.7 MB. Free memory was 96.1 MB in the beginning and 84.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:03,531 INFO L168 Benchmark]: TraceAbstraction took 309640.54 ms. Allocated memory was 123.7 MB in the beginning and 308.3 MB in the end (delta: 184.5 MB). Free memory was 83.9 MB in the beginning and 238.7 MB in the end (delta: -154.8 MB). Peak memory consumption was 172.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:03,531 INFO L168 Benchmark]: Witness Printer took 79.40 ms. Allocated memory is still 308.3 MB. Free memory was 238.7 MB in the beginning and 232.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:24:03,534 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 123.7 MB. Free memory is still 103.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.14 ms. Allocated memory is still 123.7 MB. Free memory was 86.5 MB in the beginning and 98.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.10 ms. Allocated memory is still 123.7 MB. Free memory was 98.9 MB in the beginning and 97.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.84 ms. Allocated memory is still 123.7 MB. Free memory was 96.9 MB in the beginning and 96.1 MB in the end (delta: 852.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 451.42 ms. Allocated memory is still 123.7 MB. Free memory was 96.1 MB in the beginning and 84.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 309640.54 ms. Allocated memory was 123.7 MB in the beginning and 308.3 MB in the end (delta: 184.5 MB). Free memory was 83.9 MB in the beginning and 238.7 MB in the end (delta: -154.8 MB). Peak memory consumption was 172.8 MB. Max. memory is 16.1 GB. * Witness Printer took 79.40 ms. Allocated memory is still 308.3 MB. Free memory was 238.7 MB in the beginning and 232.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 309.5s, OverallIterations: 27, TraceHistogramMax: 5, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 190.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 28.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 694 SDtfs, 2380 SDslu, 2575 SDs, 0 SdLazy, 7627 SolverSat, 1037 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 36.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1272 GetRequests, 823 SyntacticMatches, 3 SemanticMatches, 446 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1767 ImplicationChecksByTransitivity, 170.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=15, InterpolantAutomatonStates: 346, 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, 27 MinimizatonAttempts, 247 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 75 NumberOfFragments, 3206 HoareAnnotationTreeSize, 9 FomulaSimplifications, 144925 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 61692 FormulaSimplificationTreeSizeReductionInter, 27.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 71.1s InterpolantComputationTime, 1106 NumberOfCodeBlocks, 1038 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 1079 ConstructedInterpolants, 0 QuantifiedInterpolants, 21264 SizeOfPredicates, 219 NumberOfNonLiveVariables, 3647 ConjunctsInSsa, 837 ConjunctsInUnsatCore, 27 InterpolantComputations, 7 PerfectInterpolantSequences, 290/1121 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: (((((((((((((((((((((((cond == 1 && 4 * (B % 4294967296) == d) && 2 * (B % 4294967296) <= r) && p == 4) && B % 4294967296 <= 10) && 1 == cond) && q == 0) && r == A % 4294967296) && r < d) || (((((((((cond == 1 && 2 * (B % 4294967296) == d) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 0 <= r) && (r * -1 + A % 4294967296) / 2 == d) || ((((((((cond == 1 && 0 < (d * -1 + B % 4294967296 * -4 + 10) / 4294967296 + 1) && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && r < 4 * (B % 4294967296))) && A % 4294967296 < 8 * (B % 4294967296)) && 4 * (B % 4294967296) + d + r == A % 4294967296) && p == 2)) || ((((((((cond == 1 && p == 4) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 0 <= r) && d + r < 8 * (B % 4294967296)) && B % 4294967296 * p == d)) || ((((((((cond == 1 && d + r == A % 4294967296) && p == 1) && B % 4294967296 <= 10) && q == p) && 0 <= r) && d == B % 4294967296) && r < d) && !(0 == cond))) || (((((((((((cond == 1 && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && q == 10) || ((((((((cond == 1 && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == 8) && 1 <= B % 4294967296) && 8 * (B % 4294967296) <= A % 4294967296)) && r < d) && p == 2)) || (((((((((cond == 1 && p == 4) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == 8) && 1 <= B % 4294967296) && 8 * (B % 4294967296) <= A % 4294967296) && (r * -1 + A % 4294967296) / 2 == d)) || ((((((((cond == 1 && A % 4294967296 < 4 * (B % 4294967296)) && p == 1) && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && d == B % 4294967296) && q == 3) && 2 * (B % 4294967296) <= A % 4294967296)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && r < d) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) && 8 * (B % 4294967296) <= A % 4294967296) && d + r < 16 * (B % 4294967296))) || ((((((((0 < (r * -1 + 10) / 4294967296 + 1 && cond == 1) && p == 1) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && d == B % 4294967296)) || ((((q == 4 && ((((((cond == 1 && 2 * (B % 4294967296) == d) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 0 <= r) && (r * -1 + A % 4294967296) / 2 == d) || ((((((((cond == 1 && 0 < (d * -1 + B % 4294967296 * -4 + 10) / 4294967296 + 1) && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && r < 4 * (B % 4294967296)))) && A % 4294967296 <= 10) && r < d) && p == 2)) || ((((((((cond == 1 && 2 * (B % 4294967296) + r == A % 4294967296) && 1 <= cond) && q == 2) && A % 4294967296 < 4 * (B % 4294967296)) && p == 1) && B % 4294967296 <= 10) && 2 * (B % 4294967296) <= A % 4294967296) && (r * -1 + A % 4294967296) / 2 == d)) || (((((((cond == 1 && 1 <= cond) && p == 1) && B % 4294967296 <= 10) && 1 <= B % 4294967296) && d == B % 4294967296) && q == 0) && r == A % 4294967296)) || ((((((((cond == 1 && 1 == cond) && A % 4294967296 <= 10) && 4 * (B % 4294967296) <= r) && q == 0) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && r < d) && B % 4294967296 * p == d)) || ((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 2 * (B % 4294967296) <= A % 4294967296) && d + r < 4 * (B % 4294967296)) && B % 4294967296 * p == d) && p == 2)) || ((((((1 <= cond && p == 1) && B % 4294967296 <= 10) && d == B % 4294967296) && q == 0) && r == A % 4294967296) && r < B % 4294967296)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && q == 0) && r == A % 4294967296) && r < d) && p == 2) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (p == 1 && d == B % 4294967296) && !(0 == cond) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((cond == 1 && 4 * (B % 4294967296) == d) && 2 * (B % 4294967296) <= r) && p == 4) && B % 4294967296 <= 10) && 1 == cond) && q == 0) && r == A % 4294967296) && r < d) || (((A % 4294967296 < 8 * (B % 4294967296) && 4 * (B % 4294967296) + d + r == A % 4294967296) && (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && B % 4294967296 * p == d) && (r * -1 + A % 4294967296) / 2 == d) || (((((((((cond == 1 && 0 < (d * -1 + B % 4294967296 * -4 + 10) / 4294967296 + 1) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && r < 4 * (B % 4294967296)) && B % 4294967296 * p == d))) && p == 2)) || (((q == 4 && r < d) && (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && B % 4294967296 * p == d) && (r * -1 + A % 4294967296) / 2 == d) || (((((((((cond == 1 && 0 < (d * -1 + B % 4294967296 * -4 + 10) / 4294967296 + 1) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && r < 4 * (B % 4294967296)) && B % 4294967296 * p == d))) && p == 2)) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 1 <= B % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) && 8 * (B % 4294967296) <= A % 4294967296)) || ((((((((0 < (r * -1 + 10) / 4294967296 + 1 && cond == 1) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && d == B % 4294967296) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && r < d) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 2 * (B % 4294967296) + r == A % 4294967296) && q == 2) && A % 4294967296 < 4 * (B % 4294967296)) && B % 4294967296 <= 10) && 1 == cond) && 2 * (B % 4294967296) <= A % 4294967296) && B % 4294967296 * p == d) && (r * -1 + A % 4294967296) / 2 == d)) || ((r < d && (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == 8) && 1 <= B % 4294967296) && B % 4294967296 * p == d) && 8 * (B % 4294967296) <= A % 4294967296) || ((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && q == 10) && B % 4294967296 * p == d))) && p == 2)) || ((((((((cond == 1 && 1 <= cond) && d + r == A % 4294967296) && p == 1) && B % 4294967296 <= 10) && q == p) && 0 <= r) && d == B % 4294967296) && r < d)) || (((((((cond == 1 && 1 <= cond) && p == 1) && B % 4294967296 <= 10) && 1 <= B % 4294967296) && d == B % 4294967296) && q == 0) && r == A % 4294967296)) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == 8) && 1 <= B % 4294967296) && B % 4294967296 * p == d) && 8 * (B % 4294967296) <= A % 4294967296) && (r * -1 + A % 4294967296) / 2 == d)) || ((((((((cond == 1 && A % 4294967296 < 4 * (B % 4294967296)) && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && d == B % 4294967296) && q == 3) && 2 * (B % 4294967296) <= A % 4294967296) && B % 4294967296 * p == d)) || ((((((((((cond == 1 && p == 4) && 4 * (B % 4294967296) <= A % 4294967296) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 1 <= B % 4294967296) && d + r < 8 * (B % 4294967296)) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && A % 4294967296 <= 10) && 4 * (B % 4294967296) <= r) && q == 0) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && r < d) && B % 4294967296 * p == d)) || ((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 2 * (B % 4294967296) <= A % 4294967296) && d + r < 4 * (B % 4294967296)) && B % 4294967296 * p == d) && p == 2)) || ((((((1 <= cond && p == 1) && B % 4294967296 <= 10) && d == B % 4294967296) && q == 0) && r == A % 4294967296) && r < B % 4294967296)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && q == 0) && r == A % 4294967296) && r < d) && p == 2) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((cond == 1 && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && 4 * (B % 4294967296) <= r) && q == 0) && (d + -8) / 2 / 2 / 2 / -4294967296 < 1) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && 1 <= p) && r == A % 4294967296) && d <= B % 4294967296) && B % 4294967296 * p == d)) || ((((((((d * -1 / -2 <= r && cond == 1) && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && (d + -2) / 2 / -4294967296 < 1) && r == A % 4294967296) && B % 4294967296 * p == d) && p == 2)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && (d * -1 / -2 + -8) / 2 / 2 / 2 / -4294967296 < 1) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 2 * (B % 4294967296) <= r) && p == 4) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && B % 4294967296 * p == d) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((cond == 1 && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && 4 * (B % 4294967296) <= r) && q == 0) && (d + -8) / 2 / 2 / 2 / -4294967296 < 1) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && 1 <= p) && r == A % 4294967296) && d <= B % 4294967296) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && (d * -1 / -2 + -8) / 2 / 2 / 2 / -4294967296 < 1) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && B % 4294967296 * p == d)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && (d + -2) / 2 / -4294967296 < 1) && r == A % 4294967296) && p == 2)) || ((((((((cond == 1 && 2 * (B % 4294967296) <= r) && p == 4) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && B % 4294967296 * p == d) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((cond == 1 && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && 4 * (B % 4294967296) <= r) && q == 0) && (d + -8) / 2 / 2 / 2 / -4294967296 < 1) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && 1 <= p) && r == A % 4294967296) && d <= B % 4294967296) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && (d * -1 / -2 + -8) / 2 / 2 / 2 / -4294967296 < 1) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && B % 4294967296 * p == d)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && (d + -2) / 2 / -4294967296 < 1) && r == A % 4294967296) && p == 2)) || ((((((((cond == 1 && 2 * (B % 4294967296) <= r) && p == 4) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && B % 4294967296 * p == d) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((((((cond == 1 && 2 * (B % 4294967296) <= r) && p == 4) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && r == A % 4294967296) && B % 4294967296 * p == d) || ((((((((cond == 1 && B % 4294967296 <= 10) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && 1 <= p) && r == A % 4294967296) && d <= B % 4294967296) && B % 4294967296 * p == d)) || ((((((((((0 <= d * -1 / -2 && d * -1 / -2 <= r) && cond == 1) && d == 2 * (p * -1 / -2 * (B % 4294967296))) && B % 4294967296 <= 10) && 1 == cond) && p == 16) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && (d + -2) / 2 / -4294967296 < 1) && r == A % 4294967296) && p == 2)) || (((((((((((0 <= d * -1 / -2 && d * -1 / -2 <= r) && cond == 1) && d == 2 * (p * -1 / -2 * (B % 4294967296))) && B % 4294967296 <= 10) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) RESULT: Ultimate proved your program to be correct! [2021-10-28 23:24:03,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f0dc86-518d-460b-9bde-cc2a1c1ba5b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...