./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.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_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/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_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/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_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/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 39b9505d3a064a677b57bccb6de3a4c04e873275d34ee3c16e80371638b07149 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:48:25,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:48:25,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:48:25,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:48:25,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:48:25,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:48:25,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:48:25,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:48:25,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:48:25,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:48:25,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:48:25,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:48:25,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:48:25,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:48:25,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:48:25,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:48:25,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:48:25,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:48:25,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:48:25,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:48:25,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:48:25,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:48:25,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:48:25,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:48:25,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:48:25,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:48:25,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:48:25,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:48:25,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:48:25,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:48:25,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:48:25,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:48:25,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:48:25,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:48:25,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:48:25,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:48:25,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:48:25,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:48:25,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:48:25,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:48:25,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:48:25,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:48:25,889 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:48:25,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:48:25,890 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:48:25,890 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:48:25,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:48:25,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:48:25,892 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:48:25,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:48:25,893 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:48:25,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:48:25,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:48:25,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:48:25,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:48:25,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:48:25,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:48:25,894 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:48:25,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:48:25,895 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:48:25,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:48:25,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:48:25,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:48:25,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:48:25,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:48:25,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:48:25,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:48:25,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:48:25,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:48:25,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:48:25,898 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:48:25,898 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:48:25,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:48:25,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:48:25,899 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_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39b9505d3a064a677b57bccb6de3a4c04e873275d34ee3c16e80371638b07149 [2021-10-28 23:48:26,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:48:26,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:48:26,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:48:26,308 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:48:26,309 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:48:26,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c [2021-10-28 23:48:26,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/data/a1e623bfd/e12d10c60d304cc1a0b3dddc8b16b14c/FLAG43b0ddddb [2021-10-28 23:48:26,987 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:48:26,988 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c [2021-10-28 23:48:27,003 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/data/a1e623bfd/e12d10c60d304cc1a0b3dddc8b16b14c/FLAG43b0ddddb [2021-10-28 23:48:27,317 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/data/a1e623bfd/e12d10c60d304cc1a0b3dddc8b16b14c [2021-10-28 23:48:27,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:48:27,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:48:27,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:48:27,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:48:27,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:48:27,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:48:27" (1/1) ... [2021-10-28 23:48:27,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20986fd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27, skipping insertion in model container [2021-10-28 23:48:27,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:48:27" (1/1) ... [2021-10-28 23:48:27,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:48:27,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:48:27,584 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_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c[526,539] [2021-10-28 23:48:27,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:48:27,631 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:48:27,650 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_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c[526,539] [2021-10-28 23:48:27,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:48:27,693 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:48:27,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27 WrapperNode [2021-10-28 23:48:27,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:48:27,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:48:27,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:48:27,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:48:27,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27" (1/1) ... [2021-10-28 23:48:27,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27" (1/1) ... [2021-10-28 23:48:27,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:48:27,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:48:27,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:48:27,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:48:27,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27" (1/1) ... [2021-10-28 23:48:27,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27" (1/1) ... [2021-10-28 23:48:27,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27" (1/1) ... [2021-10-28 23:48:27,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27" (1/1) ... [2021-10-28 23:48:27,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27" (1/1) ... [2021-10-28 23:48:27,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27" (1/1) ... [2021-10-28 23:48:27,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27" (1/1) ... [2021-10-28 23:48:27,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:48:27,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:48:27,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:48:27,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:48:27,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27" (1/1) ... [2021-10-28 23:48:27,817 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:48:27,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:27,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:27,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:48:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:48:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:48:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:48:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:48:28,279 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:48:28,299 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-28 23:48:28,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:28 BoogieIcfgContainer [2021-10-28 23:48:28,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:48:28,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:48:28,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:48:28,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:48:28,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:48:27" (1/3) ... [2021-10-28 23:48:28,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395b5662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:48:28, skipping insertion in model container [2021-10-28 23:48:28,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:27" (2/3) ... [2021-10-28 23:48:28,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395b5662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:48:28, skipping insertion in model container [2021-10-28 23:48:28,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:28" (3/3) ... [2021-10-28 23:48:28,325 INFO L111 eAbstractionObserver]: Analyzing ICFG hard2_valuebound2.c [2021-10-28 23:48:28,331 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:48:28,331 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-28 23:48:28,421 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:48:28,432 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 23:48:28,432 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-28 23:48:28,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 38 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 23:48:28,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:48:28,455 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:28,456 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:28,457 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 23:48:28,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:28,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-28 23:48:28,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:28,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975758382] [2021-10-28 23:48:28,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:28,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:28,707 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 23:48:28,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:28,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975758382] [2021-10-28 23:48:28,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975758382] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:28,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:28,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:48:28,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780113687] [2021-10-28 23:48:28,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:48:28,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:28,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:48:28,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:48:28,744 INFO L87 Difference]: Start difference. First operand has 39 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 38 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:28,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:28,770 INFO L93 Difference]: Finished difference Result 75 states and 102 transitions. [2021-10-28 23:48:28,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:48:28,771 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-28 23:48:28,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:28,781 INFO L225 Difference]: With dead ends: 75 [2021-10-28 23:48:28,781 INFO L226 Difference]: Without dead ends: 35 [2021-10-28 23:48:28,784 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 23:48:28,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-28 23:48:28,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-28 23:48:28,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.3214285714285714) 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 23:48:28,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-10-28 23:48:28,830 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 7 [2021-10-28 23:48:28,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:28,831 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-10-28 23:48:28,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:28,832 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-10-28 23:48:28,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:48:28,833 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:28,833 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:28,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:48:28,835 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 23:48:28,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:28,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-28 23:48:28,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:28,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623562209] [2021-10-28 23:48:28,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:28,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:28,974 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 23:48:28,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:28,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623562209] [2021-10-28 23:48:28,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623562209] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:28,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:28,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:48:28,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657153875] [2021-10-28 23:48:28,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:48:28,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:28,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:48:28,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:48:28,981 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:29,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:29,091 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2021-10-28 23:48:29,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:48:29,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-28 23:48:29,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:29,094 INFO L225 Difference]: With dead ends: 54 [2021-10-28 23:48:29,094 INFO L226 Difference]: Without dead ends: 52 [2021-10-28 23:48:29,095 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 23:48:29,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-28 23:48:29,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 33. [2021-10-28 23:48:29,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:29,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2021-10-28 23:48:29,102 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 7 [2021-10-28 23:48:29,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:29,103 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2021-10-28 23:48:29,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:29,104 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2021-10-28 23:48:29,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 23:48:29,104 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:29,105 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:29,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:48:29,105 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 23:48:29,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:29,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-10-28 23:48:29,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:29,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768229558] [2021-10-28 23:48:29,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:29,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:29,172 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 23:48:29,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:29,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768229558] [2021-10-28 23:48:29,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768229558] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:29,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:29,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:48:29,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105933782] [2021-10-28 23:48:29,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:48:29,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:29,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:48:29,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:48:29,177 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:29,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:29,264 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2021-10-28 23:48:29,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:48:29,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 23:48:29,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:29,266 INFO L225 Difference]: With dead ends: 52 [2021-10-28 23:48:29,266 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 23:48:29,267 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 23:48:29,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 23:48:29,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 31. [2021-10-28 23:48:29,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:29,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-10-28 23:48:29,277 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 9 [2021-10-28 23:48:29,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:29,277 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-10-28 23:48:29,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:29,278 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-10-28 23:48:29,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:48:29,278 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:29,278 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:29,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:48:29,279 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 23:48:29,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:29,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-10-28 23:48:29,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:29,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092405657] [2021-10-28 23:48:29,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:29,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:29,320 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:48:29,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [989676759] [2021-10-28 23:48:29,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:29,321 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:29,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:29,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:29,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:48:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:29,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:48:29,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:29,667 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 23:48:29,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:29,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092405657] [2021-10-28 23:48:29,668 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:48:29,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989676759] [2021-10-28 23:48:29,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989676759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:29,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:29,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:48:29,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136970986] [2021-10-28 23:48:29,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:48:29,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:29,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:48:29,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:48:29,671 INFO L87 Difference]: Start difference. First operand 31 states and 33 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 23:48:29,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:29,759 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2021-10-28 23:48:29,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:48:29,760 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 23:48:29,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:29,761 INFO L225 Difference]: With dead ends: 72 [2021-10-28 23:48:29,761 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 23:48:29,762 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:48:29,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 23:48:29,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2021-10-28 23:48:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.225) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:29,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2021-10-28 23:48:29,772 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 11 [2021-10-28 23:48:29,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:29,772 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-10-28 23:48:29,773 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 23:48:29,773 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2021-10-28 23:48:29,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 23:48:29,774 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:29,774 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:29,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:29,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:29,975 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 23:48:29,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:29,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1783857492, now seen corresponding path program 1 times [2021-10-28 23:48:29,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:29,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101249361] [2021-10-28 23:48:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:29,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:29,990 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:48:29,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1507755551] [2021-10-28 23:48:29,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:29,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:29,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:29,993 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:30,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:48:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:30,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:48:30,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:30,256 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 23:48:30,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:30,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101249361] [2021-10-28 23:48:30,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:48:30,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507755551] [2021-10-28 23:48:30,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507755551] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:30,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:30,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:48:30,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554854096] [2021-10-28 23:48:30,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:48:30,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:30,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:48:30,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:48:30,263 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 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 23:48:30,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:30,373 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2021-10-28 23:48:30,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:48:30,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2021-10-28 23:48:30,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:30,378 INFO L225 Difference]: With dead ends: 63 [2021-10-28 23:48:30,378 INFO L226 Difference]: Without dead ends: 52 [2021-10-28 23:48:30,380 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 23:48:30,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-28 23:48:30,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2021-10-28 23:48:30,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 45 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 23:48:30,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2021-10-28 23:48:30,402 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 14 [2021-10-28 23:48:30,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:30,408 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2021-10-28 23:48:30,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 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 23:48:30,409 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2021-10-28 23:48:30,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:48:30,410 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:30,412 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:30,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:30,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:30,628 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 23:48:30,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:30,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1907209632, now seen corresponding path program 1 times [2021-10-28 23:48:30,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:30,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233519763] [2021-10-28 23:48:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:30,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:30,643 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:48:30,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243860950] [2021-10-28 23:48:30,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:30,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:30,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:30,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:30,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:48:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:30,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:48:30,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:31,036 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 23:48:31,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:31,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233519763] [2021-10-28 23:48:31,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:48:31,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243860950] [2021-10-28 23:48:31,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243860950] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:31,038 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:48:31,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-10-28 23:48:31,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944053539] [2021-10-28 23:48:31,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:48:31,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:31,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:48:31,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:48:31,040 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:31,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:31,177 INFO L93 Difference]: Finished difference Result 108 states and 125 transitions. [2021-10-28 23:48:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:48:31,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-28 23:48:31,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:31,179 INFO L225 Difference]: With dead ends: 108 [2021-10-28 23:48:31,179 INFO L226 Difference]: Without dead ends: 71 [2021-10-28 23:48:31,179 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:48:31,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-28 23:48:31,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2021-10-28 23:48:31,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 65 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 23:48:31,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2021-10-28 23:48:31,193 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 18 [2021-10-28 23:48:31,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:31,193 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2021-10-28 23:48:31,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:31,194 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2021-10-28 23:48:31,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:48:31,195 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:31,196 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:31,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:31,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 23:48:31,424 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:48:31,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:31,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1115495499, now seen corresponding path program 2 times [2021-10-28 23:48:31,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:31,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695806356] [2021-10-28 23:48:31,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:31,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:31,453 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:48:31,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451796206] [2021-10-28 23:48:31,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:48:31,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:31,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:31,467 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:31,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:48:31,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:48:31,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:48:31,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:48:31,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:31,937 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 23:48:31,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:31,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695806356] [2021-10-28 23:48:31,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:48:31,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451796206] [2021-10-28 23:48:31,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451796206] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:31,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:48:31,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 23:48:31,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5224591] [2021-10-28 23:48:31,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:48:31,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:31,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:48:31,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:48:31,941 INFO L87 Difference]: Start difference. First operand 66 states and 73 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 23:48:32,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:32,144 INFO L93 Difference]: Finished difference Result 142 states and 167 transitions. [2021-10-28 23:48:32,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:48:32,145 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 25 [2021-10-28 23:48:32,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:32,149 INFO L225 Difference]: With dead ends: 142 [2021-10-28 23:48:32,149 INFO L226 Difference]: Without dead ends: 105 [2021-10-28 23:48:32,155 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:48:32,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-10-28 23:48:32,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 85. [2021-10-28 23:48:32,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 80 states have (on average 1.2) internal successors, (96), 84 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 23:48:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2021-10-28 23:48:32,188 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 25 [2021-10-28 23:48:32,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:32,189 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2021-10-28 23:48:32,189 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 23:48:32,189 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2021-10-28 23:48:32,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 23:48:32,190 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:32,191 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] [2021-10-28 23:48:32,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:32,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-28 23:48:32,420 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:48:32,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:32,420 INFO L85 PathProgramCache]: Analyzing trace with hash 115055918, now seen corresponding path program 1 times [2021-10-28 23:48:32,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:32,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480837024] [2021-10-28 23:48:32,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:32,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:32,448 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:48:32,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707305585] [2021-10-28 23:48:32,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:32,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:32,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:32,458 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:32,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:48:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:32,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 23:48:32,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:33,086 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 23:48:33,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:33,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480837024] [2021-10-28 23:48:33,087 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:48:33,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707305585] [2021-10-28 23:48:33,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707305585] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:33,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:48:33,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 23:48:33,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660215088] [2021-10-28 23:48:33,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:48:33,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:33,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:48:33,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:48:33,090 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:33,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:33,256 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2021-10-28 23:48:33,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:48:33,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-28 23:48:33,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:33,258 INFO L225 Difference]: With dead ends: 102 [2021-10-28 23:48:33,258 INFO L226 Difference]: Without dead ends: 100 [2021-10-28 23:48:33,259 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:48:33,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-10-28 23:48:33,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2021-10-28 23:48:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.1818181818181819) internal successors, (104), 92 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:33,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 104 transitions. [2021-10-28 23:48:33,287 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 104 transitions. Word has length 27 [2021-10-28 23:48:33,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:33,288 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 104 transitions. [2021-10-28 23:48:33,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:33,288 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 104 transitions. [2021-10-28 23:48:33,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 23:48:33,290 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:33,290 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] [2021-10-28 23:48:33,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:33,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:33,503 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:48:33,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:33,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1492250324, now seen corresponding path program 1 times [2021-10-28 23:48:33,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:33,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320712855] [2021-10-28 23:48:33,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:33,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:33,518 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:48:33,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201632194] [2021-10-28 23:48:33,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:33,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:33,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:33,520 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:33,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 23:48:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:33,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 23:48:33,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:34,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:34,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320712855] [2021-10-28 23:48:34,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:48:34,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201632194] [2021-10-28 23:48:34,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201632194] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:34,107 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:48:34,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 23:48:34,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201628322] [2021-10-28 23:48:34,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:48:34,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:34,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:48:34,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:48:34,109 INFO L87 Difference]: Start difference. First operand 93 states and 104 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 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 23:48:34,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:34,264 INFO L93 Difference]: Finished difference Result 100 states and 110 transitions. [2021-10-28 23:48:34,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:48:34,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 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 23:48:34,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:34,266 INFO L225 Difference]: With dead ends: 100 [2021-10-28 23:48:34,266 INFO L226 Difference]: Without dead ends: 85 [2021-10-28 23:48:34,266 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:48:34,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-10-28 23:48:34,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-10-28 23:48:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 80 states have (on average 1.1875) internal successors, (95), 84 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 23:48:34,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2021-10-28 23:48:34,274 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 32 [2021-10-28 23:48:34,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:34,275 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2021-10-28 23:48:34,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 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 23:48:34,275 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2021-10-28 23:48:34,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 23:48:34,276 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:34,277 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:34,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:34,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-28 23:48:34,492 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:48:34,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:34,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1670816768, now seen corresponding path program 3 times [2021-10-28 23:48:34,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:34,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492773435] [2021-10-28 23:48:34,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:34,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:34,504 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:48:34,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563954462] [2021-10-28 23:48:34,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:48:34,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:34,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:34,506 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:34,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 23:48:34,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-28 23:48:34,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:48:34,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:48:34,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:34,962 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-28 23:48:34,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:34,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492773435] [2021-10-28 23:48:34,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:48:34,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563954462] [2021-10-28 23:48:34,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563954462] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:34,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:48:34,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 23:48:34,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898042213] [2021-10-28 23:48:34,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:48:34,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:34,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:48:34,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:48:34,968 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:35,164 INFO L93 Difference]: Finished difference Result 96 states and 107 transitions. [2021-10-28 23:48:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:48:35,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-28 23:48:35,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:35,166 INFO L225 Difference]: With dead ends: 96 [2021-10-28 23:48:35,166 INFO L226 Difference]: Without dead ends: 86 [2021-10-28 23:48:35,166 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:48:35,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-10-28 23:48:35,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-10-28 23:48:35,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 83 states have (on average 1.144578313253012) internal successors, (95), 85 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 23:48:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2021-10-28 23:48:35,179 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 32 [2021-10-28 23:48:35,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:35,179 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2021-10-28 23:48:35,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:35,179 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2021-10-28 23:48:35,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 23:48:35,181 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:35,181 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] [2021-10-28 23:48:35,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:35,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:35,396 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:48:35,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:35,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1996519097, now seen corresponding path program 2 times [2021-10-28 23:48:35,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:35,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380431586] [2021-10-28 23:48:35,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:35,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:35,411 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:48:35,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [730665547] [2021-10-28 23:48:35,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:48:35,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:35,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:35,412 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:35,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 23:48:35,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:48:35,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:48:35,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-28 23:48:35,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:36,223 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 23:48:36,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:36,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380431586] [2021-10-28 23:48:36,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:48:36,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730665547] [2021-10-28 23:48:36,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730665547] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:36,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:48:36,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 23:48:36,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389320324] [2021-10-28 23:48:36,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:48:36,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:36,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:48:36,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:48:36,227 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:36,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:36,461 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2021-10-28 23:48:36,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:48:36,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-28 23:48:36,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:36,463 INFO L225 Difference]: With dead ends: 99 [2021-10-28 23:48:36,464 INFO L226 Difference]: Without dead ends: 97 [2021-10-28 23:48:36,464 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:48:36,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-28 23:48:36,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 88. [2021-10-28 23:48:36,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 85 states have (on average 1.1294117647058823) internal successors, (96), 87 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 23:48:36,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2021-10-28 23:48:36,481 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 34 [2021-10-28 23:48:36,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:36,484 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2021-10-28 23:48:36,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:36,484 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2021-10-28 23:48:36,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 23:48:36,487 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:36,488 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:36,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:36,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:36,713 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:48:36,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:36,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1415019748, now seen corresponding path program 1 times [2021-10-28 23:48:36,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:36,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618184418] [2021-10-28 23:48:36,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:36,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:36,722 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:48:36,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1488629019] [2021-10-28 23:48:36,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:36,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:36,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:36,724 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:36,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 23:48:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:37,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:48:37,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:37,368 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:48:37,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:37,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618184418] [2021-10-28 23:48:37,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:48:37,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488629019] [2021-10-28 23:48:37,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488629019] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:37,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:37,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:48:37,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384541449] [2021-10-28 23:48:37,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:48:37,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:37,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:48:37,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:48:37,372 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 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 23:48:37,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:37,475 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2021-10-28 23:48:37,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:48:37,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 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 40 [2021-10-28 23:48:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:37,477 INFO L225 Difference]: With dead ends: 143 [2021-10-28 23:48:37,477 INFO L226 Difference]: Without dead ends: 106 [2021-10-28 23:48:37,478 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:48:37,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-28 23:48:37,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 75. [2021-10-28 23:48:37,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 72 states have (on average 1.1111111111111112) internal successors, (80), 74 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:37,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2021-10-28 23:48:37,489 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 40 [2021-10-28 23:48:37,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:37,489 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2021-10-28 23:48:37,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 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 23:48:37,490 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2021-10-28 23:48:37,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 23:48:37,491 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:37,491 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] [2021-10-28 23:48:37,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:37,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:37,707 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 23:48:37,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:37,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1808046758, now seen corresponding path program 3 times [2021-10-28 23:48:37,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:37,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535862621] [2021-10-28 23:48:37,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:37,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:37,731 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:48:37,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081022578] [2021-10-28 23:48:37,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:48:37,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:37,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:37,738 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:37,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 23:48:38,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-28 23:48:38,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:48:38,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 23:48:38,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:38,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:38,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535862621] [2021-10-28 23:48:38,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:48:38,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081022578] [2021-10-28 23:48:38,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081022578] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:38,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:48:38,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-28 23:48:38,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233896141] [2021-10-28 23:48:38,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:48:38,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:38,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:48:38,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:48:38,534 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:38,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:38,813 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2021-10-28 23:48:38,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:48:38,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-28 23:48:38,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:38,815 INFO L225 Difference]: With dead ends: 82 [2021-10-28 23:48:38,815 INFO L226 Difference]: Without dead ends: 46 [2021-10-28 23:48:38,816 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:48:38,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-28 23:48:38,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-28 23:48:38,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0) internal successors, (45), 45 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 23:48:38,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 45 transitions. [2021-10-28 23:48:38,825 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 45 transitions. Word has length 40 [2021-10-28 23:48:38,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:38,825 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 45 transitions. [2021-10-28 23:48:38,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:38,825 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2021-10-28 23:48:38,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 23:48:38,826 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:38,826 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:38,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:39,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:39,027 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:48:39,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:39,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1953331806, now seen corresponding path program 1 times [2021-10-28 23:48:39,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:39,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853744240] [2021-10-28 23:48:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:39,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:39,043 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:48:39,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1876369606] [2021-10-28 23:48:39,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:39,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:39,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:39,050 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:39,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 23:48:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:39,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-28 23:48:39,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:40,701 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:40,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:40,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853744240] [2021-10-28 23:48:40,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:48:40,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876369606] [2021-10-28 23:48:40,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876369606] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:40,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:48:40,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-28 23:48:40,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063743498] [2021-10-28 23:48:40,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:48:40,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:40,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:48:40,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:48:40,704 INFO L87 Difference]: Start difference. First operand 46 states and 45 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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 23:48:41,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:41,100 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2021-10-28 23:48:41,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:48:41,101 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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 23:48:41,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:41,101 INFO L225 Difference]: With dead ends: 46 [2021-10-28 23:48:41,102 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:48:41,102 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:48:41,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:48:41,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:48:41,103 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 23:48:41,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:48:41,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2021-10-28 23:48:41,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:41,104 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:48:41,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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 23:48:41,104 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:48:41,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:48:41,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:48:41,109 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:48:41,109 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:48:41,110 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:48:41,110 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:48:41,110 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:48:41,110 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:48:41,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:41,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 23:48:41,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:48:41,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:48:41,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:48:41,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:48:41,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:48:41,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:48:41,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:48:41,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:48:41,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:48:41,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:48:42,676 INFO L860 garLoopResultBuilder]: At program point L60(lines 22 61) the Hoare annotation is: true [2021-10-28 23:48:42,677 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:48:42,677 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2021-10-28 23:48:42,677 INFO L857 garLoopResultBuilder]: For program point L52-2(lines 22 61) no Hoare annotation was computed. [2021-10-28 23:48:42,677 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-10-28 23:48:42,677 INFO L857 garLoopResultBuilder]: For program point L44-1(lines 44 56) no Hoare annotation was computed. [2021-10-28 23:48:42,677 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:48:42,677 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:48:42,677 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:48:42,677 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-28 23:48:42,678 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:48:42,678 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:48:42,678 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:48:42,678 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:48:42,678 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse6 (* 2 ULTIMATE.start_main_~B~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= ULTIMATE.start_main_~A~0 2)) (.cse3 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0)) (.cse4 (<= 0 ULTIMATE.start_main_~r~0)) (.cse5 (= ULTIMATE.start_main_~q~0 0))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~d~0 2) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~p~0 2) (= ULTIMATE.start_main_~d~0 .cse6)) (and .cse0 (= ULTIMATE.start_main_~p~0 4) .cse1 .cse2 (= ULTIMATE.start_main_~d~0 4) .cse3 .cse5 (= (* 2 (* (div (* ULTIMATE.start_main_~p~0 (- 1)) (- 2)) ULTIMATE.start_main_~B~0)) ULTIMATE.start_main_~d~0) (<= .cse6 ULTIMATE.start_main_~r~0)) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~p~0 1) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~d~0 1) (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0)))) [2021-10-28 23:48:42,678 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:48:42,678 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: (let ((.cse6 (* 2 ULTIMATE.start_main_~B~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= ULTIMATE.start_main_~A~0 2)) (.cse3 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0)) (.cse4 (<= 0 ULTIMATE.start_main_~r~0)) (.cse5 (= ULTIMATE.start_main_~q~0 0))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~d~0 2) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~p~0 2) (= ULTIMATE.start_main_~d~0 .cse6)) (and .cse0 (= ULTIMATE.start_main_~p~0 4) .cse1 .cse2 (= ULTIMATE.start_main_~d~0 4) .cse3 .cse5 (= (* 2 (* (div (* ULTIMATE.start_main_~p~0 (- 1)) (- 2)) ULTIMATE.start_main_~B~0)) ULTIMATE.start_main_~d~0) (<= .cse6 ULTIMATE.start_main_~r~0)) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~p~0 1) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~d~0 1) (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0)))) [2021-10-28 23:48:42,678 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:48:42,679 INFO L853 garLoopResultBuilder]: At program point L15-8(line 38) the Hoare annotation is: (let ((.cse6 (* 2 ULTIMATE.start_main_~B~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (<= ULTIMATE.start_main_~A~0 2)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0)) (.cse4 (<= 0 ULTIMATE.start_main_~r~0)) (.cse5 (= ULTIMATE.start_main_~q~0 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~d~0 2) .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~p~0 2) (= ULTIMATE.start_main_~d~0 .cse6)) (and .cse0 (= ULTIMATE.start_main_~d~0 (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~B~0)) .cse1 (= ULTIMATE.start_main_~B~0 1) .cse2 (= ULTIMATE.start_main_~d~0 4) .cse3 .cse5 (<= .cse6 ULTIMATE.start_main_~r~0)) (and .cse0 .cse1 (= ULTIMATE.start_main_~p~0 1) .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~d~0 1) (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0)))) [2021-10-28 23:48:42,679 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:48:42,679 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse8 (* 2 ULTIMATE.start_main_~B~0))) (let ((.cse6 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse7 (<= ULTIMATE.start_main_~A~0 2)) (.cse1 (= ULTIMATE.start_main_~d~0 2)) (.cse10 (<= 0 ULTIMATE.start_main_~r~0)) (.cse11 (<= .cse8 ULTIMATE.start_main_~A~0)) (.cse4 (= ULTIMATE.start_main_~p~0 2)) (.cse5 (= ULTIMATE.start_main_~d~0 .cse8)) (.cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0)) (.cse3 (= ULTIMATE.start_main_~q~0 0)) (.cse13 (+ ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0)) (.cse9 (= ULTIMATE.start_main_~p~0 1)) (.cse14 (= ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (.cse12 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 (= ULTIMATE.start_main_~p~0 4) .cse0 .cse7 (= ULTIMATE.start_main_~d~0 4) .cse2 .cse3 (= (* 2 (* (div (* ULTIMATE.start_main_~p~0 (- 1)) (- 2)) ULTIMATE.start_main_~B~0)) ULTIMATE.start_main_~d~0) (<= .cse8 ULTIMATE.start_main_~r~0)) (and .cse6 (= ULTIMATE.start_main_~q~0 2) .cse7 .cse9 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse10 .cse11 .cse12 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~d~0)) (and .cse6 .cse0 .cse7 .cse1 (<= .cse13 2) .cse14 .cse10 .cse11 .cse4 .cse5) (and .cse0 (= ULTIMATE.start_main_~B~0 1) .cse9 .cse2 .cse3 .cse12) (and (= ULTIMATE.start_main_~A~0 .cse13) .cse9 .cse14 (= ULTIMATE.start_main_~d~0 1) .cse12 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))))) [2021-10-28 23:48:42,679 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:48:42,679 INFO L853 garLoopResultBuilder]: At program point L15-14(line 48) the Hoare annotation is: (let ((.cse14 (* 2 ULTIMATE.start_main_~B~0))) (let ((.cse6 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse7 (<= ULTIMATE.start_main_~A~0 2)) (.cse1 (= ULTIMATE.start_main_~d~0 2)) (.cse15 (+ ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0)) (.cse9 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse16 (= ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (.cse10 (<= 0 ULTIMATE.start_main_~r~0)) (.cse11 (<= .cse14 ULTIMATE.start_main_~A~0)) (.cse4 (= ULTIMATE.start_main_~p~0 2)) (.cse5 (= ULTIMATE.start_main_~d~0 .cse14)) (.cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse13 (= ULTIMATE.start_main_~B~0 1)) (.cse8 (= ULTIMATE.start_main_~p~0 1)) (.cse2 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0)) (.cse3 (= ULTIMATE.start_main_~q~0 0)) (.cse12 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 (= ULTIMATE.start_main_~q~0 2) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~d~0)) (and .cse6 (= ULTIMATE.start_main_~d~0 (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~B~0)) .cse7 .cse13 .cse9 (= ULTIMATE.start_main_~d~0 4) .cse2 .cse3 (<= .cse14 ULTIMATE.start_main_~r~0)) (and (= ULTIMATE.start_main_~A~0 .cse15) .cse0 .cse8 .cse16 (= ULTIMATE.start_main_~d~0 1) .cse12) (and .cse6 .cse7 .cse1 (<= .cse15 2) .cse9 .cse16 .cse10 .cse11 .cse4 .cse5) (and .cse0 .cse13 .cse8 .cse2 .cse3 .cse12)))) [2021-10-28 23:48:42,679 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:48:42,679 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:48:42,680 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_main_~B~0 1) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-28 23:48:42,680 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:48:42,680 INFO L860 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-10-28 23:48:42,680 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:48:42,680 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:48:42,680 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:48:42,680 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:48:42,680 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:48:42,681 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:48:42,683 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:48:42,683 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:48:42,683 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:48:42,683 INFO L853 garLoopResultBuilder]: At program point L34-2(lines 34 42) the Hoare annotation is: (let ((.cse4 (<= 0 ULTIMATE.start_main_~r~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (<= ULTIMATE.start_main_~A~0 2)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0)) (.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (* 2 ULTIMATE.start_main_~B~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~d~0 2) .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~p~0 2) (= ULTIMATE.start_main_~d~0 .cse6)) (and .cse0 .cse1 (= ULTIMATE.start_main_~p~0 1) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~d~0 1) (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0)) (and .cse0 (= ULTIMATE.start_main_~d~0 (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~B~0)) .cse1 (= ULTIMATE.start_main_~B~0 1) .cse2 (= ULTIMATE.start_main_~d~0 4) .cse3 .cse5 (<= .cse6 ULTIMATE.start_main_~r~0)))) [2021-10-28 23:48:42,683 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:48:42,688 INFO L731 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:42,690 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:48:42,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:48:42 BoogieIcfgContainer [2021-10-28 23:48:42,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:48:42,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:48:42,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:48:42,726 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:48:42,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:28" (3/4) ... [2021-10-28 23:48:42,730 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:48:42,742 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-28 23:48:42,742 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:48:42,742 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:48:42,743 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:48:42,794 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:48:42,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:48:42,796 INFO L168 Benchmark]: Toolchain (without parser) took 15473.55 ms. Allocated memory was 86.0 MB in the beginning and 138.4 MB in the end (delta: 52.4 MB). Free memory was 51.5 MB in the beginning and 44.3 MB in the end (delta: 7.2 MB). Peak memory consumption was 58.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:42,797 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 58.7 MB in the beginning and 58.7 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:48:42,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.45 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 51.2 MB in the beginning and 90.3 MB in the end (delta: -39.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:42,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.48 ms. Allocated memory is still 115.3 MB. Free memory was 90.3 MB in the beginning and 88.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:42,799 INFO L168 Benchmark]: Boogie Preprocessor took 52.36 ms. Allocated memory is still 115.3 MB. Free memory was 88.6 MB in the beginning and 87.6 MB in the end (delta: 960.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:42,800 INFO L168 Benchmark]: RCFGBuilder took 497.41 ms. Allocated memory is still 115.3 MB. Free memory was 87.6 MB in the beginning and 76.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:42,800 INFO L168 Benchmark]: TraceAbstraction took 14421.61 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 76.0 MB in the beginning and 47.4 MB in the end (delta: 28.6 MB). Peak memory consumption was 67.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:42,800 INFO L168 Benchmark]: Witness Printer took 68.50 ms. Allocated memory is still 138.4 MB. Free memory was 47.4 MB in the beginning and 44.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:42,803 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 58.7 MB in the beginning and 58.7 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 371.45 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 51.2 MB in the beginning and 90.3 MB in the end (delta: -39.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.48 ms. Allocated memory is still 115.3 MB. Free memory was 90.3 MB in the beginning and 88.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.36 ms. Allocated memory is still 115.3 MB. Free memory was 88.6 MB in the beginning and 87.6 MB in the end (delta: 960.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 497.41 ms. Allocated memory is still 115.3 MB. Free memory was 87.6 MB in the beginning and 76.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14421.61 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 76.0 MB in the beginning and 47.4 MB in the end (delta: 28.6 MB). Peak memory consumption was 67.6 MB. Max. memory is 16.1 GB. * Witness Printer took 68.50 ms. Allocated memory is still 138.4 MB. Free memory was 47.4 MB in the beginning and 44.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.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, 39 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 14.2s, OverallIterations: 14, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 338 SDtfs, 444 SDslu, 634 SDs, 0 SdLazy, 1311 SolverSat, 199 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 352 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=8, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 121 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 37 NumberOfFragments, 718 HoareAnnotationTreeSize, 9 FomulaSimplifications, 1421 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 706 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 341 NumberOfCodeBlocks, 327 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 3525 SizeOfPredicates, 62 NumberOfNonLiveVariables, 1255 ConjunctsInSsa, 223 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 71/207 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((1 <= cond && d == 2) && A == r) && q == 0) && p == 2) && d == 2 * B) || ((((((((cond == 1 && p == 4) && 1 <= cond) && A <= 2) && d == 4) && A == r) && q == 0) && 2 * (p * -1 / -2 * B) == d) && 2 * B <= r)) || ((((((((cond == 1 && q == 2) && A <= 2) && p == 1) && 1 == cond) && 0 <= r) && 2 * B <= A) && B == d) && r < d)) || (((((((((cond == 1 && 1 <= cond) && A <= 2) && d == 2) && d + r <= 2) && q == p) && 0 <= r) && 2 * B <= A) && p == 2) && d == 2 * B)) || (((((1 <= cond && B == 1) && p == 1) && A == r) && q == 0) && B == d)) || (((((A == d + r && p == 1) && q == p) && d == 1) && B == d) && !(0 == cond)) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((B == 1 && p == 1) && B == d) && !(0 == cond) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (((((((((1 <= cond && d == 2) && A == r) && q == 0) && p == 2) && d == 2 * B) || ((((((((cond == 1 && q == 2) && A <= 2) && p == 1) && 1 == cond) && 0 <= r) && 2 * B <= A) && B == d) && r < d)) || ((((((((cond == 1 && d == p * B) && A <= 2) && B == 1) && 1 == cond) && d == 4) && A == r) && q == 0) && 2 * B <= r)) || (((((A == d + r && 1 <= cond) && p == 1) && q == p) && d == 1) && B == d)) || (((((((((cond == 1 && A <= 2) && d == 2) && d + r <= 2) && 1 == cond) && q == p) && 0 <= r) && 2 * B <= A) && p == 2) && d == 2 * B)) || (((((1 <= cond && B == 1) && p == 1) && A == r) && q == 0) && B == d) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((((((cond == 1 && A <= 2) && d == 2) && 1 == cond) && A == r) && 0 <= r) && q == 0) && p == 2) && d == 2 * B) || ((((((((cond == 1 && d == p * B) && A <= 2) && B == 1) && 1 == cond) && d == 4) && A == r) && q == 0) && 2 * B <= r)) || ((((((((cond == 1 && A <= 2) && p == 1) && 1 == cond) && A == r) && 0 <= r) && q == 0) && d == 1) && B == d) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((cond == 1 && 1 <= cond) && A <= 2) && d == 2) && A == r) && 0 <= r) && q == 0) && p == 2) && d == 2 * B) || ((((((((cond == 1 && p == 4) && 1 <= cond) && A <= 2) && d == 4) && A == r) && q == 0) && 2 * (p * -1 / -2 * B) == d) && 2 * B <= r)) || ((((((((cond == 1 && 1 <= cond) && A <= 2) && p == 1) && A == r) && 0 <= r) && q == 0) && d == 1) && B == d) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((((cond == 1 && A <= 2) && d == 2) && 1 == cond) && A == r) && 0 <= r) && q == 0) && p == 2) && d == 2 * B) || (((((((cond == 1 && A <= 2) && p == 1) && A == r) && 0 <= r) && q == 0) && d == 1) && B == d)) || ((((((((cond == 1 && d == p * B) && A <= 2) && B == 1) && 1 == cond) && d == 4) && A == r) && q == 0) && 2 * B <= r) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((cond == 1 && 1 <= cond) && A <= 2) && d == 2) && A == r) && 0 <= r) && q == 0) && p == 2) && d == 2 * B) || ((((((((cond == 1 && p == 4) && 1 <= cond) && A <= 2) && d == 4) && A == r) && q == 0) && 2 * (p * -1 / -2 * B) == d) && 2 * B <= r)) || ((((((((cond == 1 && 1 <= cond) && A <= 2) && p == 1) && A == r) && 0 <= r) && q == 0) && d == 1) && B == d) RESULT: Ultimate proved your program to be correct! [2021-10-28 23:48:42,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9acb7bb-bc2f-4405-8ee0-3fa2870a7ccb/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...