./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0 --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 0bb6780cd72c063a3ddf598e6503fa6a629155476e6b8e08224a0e59d0bc00b9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:24:12,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:24:12,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:24:12,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:24:12,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:24:12,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:24:12,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:24:12,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:24:12,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:24:12,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:24:12,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:24:12,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:24:12,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:24:12,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:24:12,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:24:12,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:24:12,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:24:12,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:24:12,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:24:12,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:24:12,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:24:12,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:24:12,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:24:12,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:24:12,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:24:12,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:24:12,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:24:12,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:24:12,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:24:12,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:24:12,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:24:12,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:24:12,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:24:12,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:24:12,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:24:12,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:24:12,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:24:12,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:24:12,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:24:12,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:24:12,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:24:12,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 16:24:12,846 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:24:12,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:24:12,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:24:12,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:24:12,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:24:12,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:24:12,849 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:24:12,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:24:12,849 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:24:12,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:24:12,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:24:12,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:24:12,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:24:12,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:24:12,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:24:12,852 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:24:12,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:24:12,852 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:24:12,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:24:12,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:24:12,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:24:12,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:24:12,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:24:12,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:24:12,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:24:12,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:24:12,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:24:12,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:24:12,855 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:24:12,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:24:12,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:24:12,856 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:24:12,856 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_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bb6780cd72c063a3ddf598e6503fa6a629155476e6b8e08224a0e59d0bc00b9 [2021-11-22 16:24:13,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:24:13,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:24:13,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:24:13,160 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:24:13,161 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:24:13,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c [2021-11-22 16:24:13,226 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/data/a30f3aa3f/e5bd3e66d9ca4c13afc5d8c8bcd46e69/FLAGc64d81ab7 [2021-11-22 16:24:13,665 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:24:13,666 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c [2021-11-22 16:24:13,676 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/data/a30f3aa3f/e5bd3e66d9ca4c13afc5d8c8bcd46e69/FLAGc64d81ab7 [2021-11-22 16:24:14,031 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/data/a30f3aa3f/e5bd3e66d9ca4c13afc5d8c8bcd46e69 [2021-11-22 16:24:14,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:24:14,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:24:14,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:24:14,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:24:14,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:24:14,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27fca19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14, skipping insertion in model container [2021-11-22 16:24:14,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:24:14,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:24:14,226 WARN L230 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_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c[538,551] [2021-11-22 16:24:14,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:24:14,270 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:24:14,290 WARN L230 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_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c[538,551] [2021-11-22 16:24:14,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:24:14,331 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:24:14,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14 WrapperNode [2021-11-22 16:24:14,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:24:14,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:24:14,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:24:14,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:24:14,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,385 INFO L137 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 99 [2021-11-22 16:24:14,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:24:14,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:24:14,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:24:14,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:24:14,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:24:14,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:24:14,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:24:14,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:24:14,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:24:14,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:24:14,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:24:14,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:24:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:24:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:24:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:24:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:24:14,586 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:24:14,587 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:24:14,746 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:24:14,753 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:24:14,753 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 16:24:14,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:24:14 BoogieIcfgContainer [2021-11-22 16:24:14,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:24:14,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:24:14,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:24:14,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:24:14,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:24:14" (1/3) ... [2021-11-22 16:24:14,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9793a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:24:14, skipping insertion in model container [2021-11-22 16:24:14,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14" (2/3) ... [2021-11-22 16:24:14,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9793a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:24:14, skipping insertion in model container [2021-11-22 16:24:14,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:24:14" (3/3) ... [2021-11-22 16:24:14,763 INFO L111 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound1.c [2021-11-22 16:24:14,769 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:24:14,769 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-22 16:24:14,816 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:24:14,827 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 [2021-11-22 16:24:14,827 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-22 16:24:14,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 44 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:14,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 16:24:14,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:14,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:14,866 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)] === [2021-11-22 16:24:14,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:14,872 INFO L85 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2021-11-22 16:24:14,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:14,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172602041] [2021-11-22 16:24:14,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:14,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:15,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:15,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:15,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172602041] [2021-11-22 16:24:15,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172602041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:15,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:15,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:24:15,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471194330] [2021-11-22 16:24:15,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:15,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 16:24:15,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:15,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 16:24:15,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:24:15,104 INFO L87 Difference]: Start difference. First operand has 45 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 44 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:15,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:15,143 INFO L93 Difference]: Finished difference Result 87 states and 118 transitions. [2021-11-22 16:24:15,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 16:24:15,145 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-22 16:24:15,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:15,154 INFO L225 Difference]: With dead ends: 87 [2021-11-22 16:24:15,155 INFO L226 Difference]: Without dead ends: 41 [2021-11-22 16:24:15,159 INFO L932 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 [2021-11-22 16:24:15,173 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:15,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:24:15,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-22 16:24:15,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-11-22 16:24:15,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 40 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:15,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2021-11-22 16:24:15,226 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 11 [2021-11-22 16:24:15,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:15,227 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2021-11-22 16:24:15,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:15,227 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2021-11-22 16:24:15,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 16:24:15,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:15,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:15,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 16:24:15,230 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)] === [2021-11-22 16:24:15,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:15,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2021-11-22 16:24:15,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:15,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801578340] [2021-11-22 16:24:15,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:15,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:15,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:15,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:15,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801578340] [2021-11-22 16:24:15,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801578340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:15,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:15,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:24:15,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571340342] [2021-11-22 16:24:15,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:15,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:24:15,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:15,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:24:15,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:24:15,387 INFO L87 Difference]: Start difference. First operand 41 states and 43 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) [2021-11-22 16:24:15,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:15,466 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2021-11-22 16:24:15,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 16:24:15,467 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 [2021-11-22 16:24:15,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:15,469 INFO L225 Difference]: With dead ends: 61 [2021-11-22 16:24:15,469 INFO L226 Difference]: Without dead ends: 59 [2021-11-22 16:24:15,470 INFO L932 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 [2021-11-22 16:24:15,471 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 43 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:15,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 73 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:24:15,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-22 16:24:15,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 39. [2021-11-22 16:24:15,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:15,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-11-22 16:24:15,481 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2021-11-22 16:24:15,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:15,481 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-11-22 16:24:15,482 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) [2021-11-22 16:24:15,482 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-11-22 16:24:15,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 16:24:15,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:15,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:15,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 16:24:15,484 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)] === [2021-11-22 16:24:15,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:15,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2021-11-22 16:24:15,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:15,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032093743] [2021-11-22 16:24:15,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:15,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:15,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:15,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:15,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032093743] [2021-11-22 16:24:15,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032093743] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:15,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:15,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:24:15,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324257219] [2021-11-22 16:24:15,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:15,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:24:15,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:15,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:24:15,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:24:15,602 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:15,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:15,679 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2021-11-22 16:24:15,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 16:24:15,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-22 16:24:15,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:15,681 INFO L225 Difference]: With dead ends: 59 [2021-11-22 16:24:15,681 INFO L226 Difference]: Without dead ends: 57 [2021-11-22 16:24:15,681 INFO L932 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 [2021-11-22 16:24:15,685 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 38 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:15,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 67 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:24:15,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-22 16:24:15,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 37. [2021-11-22 16:24:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.21875) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:15,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-11-22 16:24:15,698 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 13 [2021-11-22 16:24:15,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:15,699 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-11-22 16:24:15,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:15,700 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-11-22 16:24:15,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 16:24:15,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:15,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:15,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 16:24:15,702 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)] === [2021-11-22 16:24:15,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:15,702 INFO L85 PathProgramCache]: Analyzing trace with hash 999399167, now seen corresponding path program 1 times [2021-11-22 16:24:15,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:15,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164002423] [2021-11-22 16:24:15,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:15,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:15,733 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 16:24:15,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1855020157] [2021-11-22 16:24:15,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:15,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:15,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:24:15,736 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:24:15,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 16:24:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:15,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-22 16:24:15,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:24:16,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:16,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 16:24:16,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:16,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164002423] [2021-11-22 16:24:16,205 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 16:24:16,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855020157] [2021-11-22 16:24:16,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855020157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:16,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:16,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-22 16:24:16,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143657828] [2021-11-22 16:24:16,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:16,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 16:24:16,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:16,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 16:24:16,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-22 16:24:16,218 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:16,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:16,537 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2021-11-22 16:24:16,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 16:24:16,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-22 16:24:16,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:16,541 INFO L225 Difference]: With dead ends: 81 [2021-11-22 16:24:16,541 INFO L226 Difference]: Without dead ends: 58 [2021-11-22 16:24:16,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-11-22 16:24:16,552 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 202 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:16,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 68 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:24:16,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-22 16:24:16,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 53. [2021-11-22 16:24:16,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.1875) internal successors, (57), 52 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2021-11-22 16:24:16,573 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 15 [2021-11-22 16:24:16,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:16,574 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2021-11-22 16:24:16,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:16,574 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2021-11-22 16:24:16,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 16:24:16,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:16,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:16,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 16:24:16,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:16,796 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)] === [2021-11-22 16:24:16,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:16,797 INFO L85 PathProgramCache]: Analyzing trace with hash -728173713, now seen corresponding path program 1 times [2021-11-22 16:24:16,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:16,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749690637] [2021-11-22 16:24:16,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:16,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:16,810 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 16:24:16,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [910262831] [2021-11-22 16:24:16,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:16,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:16,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:24:16,812 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:24:16,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 16:24:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:16,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 16:24:16,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:24:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:17,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 16:24:17,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:17,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749690637] [2021-11-22 16:24:17,184 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 16:24:17,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910262831] [2021-11-22 16:24:17,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910262831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:17,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:17,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 16:24:17,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862806905] [2021-11-22 16:24:17,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:17,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 16:24:17,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:17,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 16:24:17,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:24:17,193 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:17,380 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2021-11-22 16:24:17,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 16:24:17,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-22 16:24:17,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:17,382 INFO L225 Difference]: With dead ends: 57 [2021-11-22 16:24:17,382 INFO L226 Difference]: Without dead ends: 45 [2021-11-22 16:24:17,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-22 16:24:17,383 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 61 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:17,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 101 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:24:17,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-22 16:24:17,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-22 16:24:17,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.175) internal successors, (47), 44 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:17,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2021-11-22 16:24:17,399 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 19 [2021-11-22 16:24:17,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:17,400 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2021-11-22 16:24:17,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:17,400 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2021-11-22 16:24:17,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 16:24:17,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:17,401 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:17,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-22 16:24:17,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:17,616 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)] === [2021-11-22 16:24:17,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:17,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1856407294, now seen corresponding path program 1 times [2021-11-22 16:24:17,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:17,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733605533] [2021-11-22 16:24:17,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:17,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:17,628 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 16:24:17,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1635055904] [2021-11-22 16:24:17,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:17,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:17,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:24:17,629 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:24:17,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 16:24:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:17,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-22 16:24:17,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:24:18,048 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:18,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:24:18,144 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 16:24:18,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:18,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733605533] [2021-11-22 16:24:18,144 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 16:24:18,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635055904] [2021-11-22 16:24:18,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635055904] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:24:18,145 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 16:24:18,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 10 [2021-11-22 16:24:18,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990077584] [2021-11-22 16:24:18,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 16:24:18,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 16:24:18,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:18,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 16:24:18,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-22 16:24:18,149 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 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) [2021-11-22 16:24:18,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:18,571 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2021-11-22 16:24:18,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 16:24:18,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 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) Word has length 23 [2021-11-22 16:24:18,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:18,572 INFO L225 Difference]: With dead ends: 85 [2021-11-22 16:24:18,572 INFO L226 Difference]: Without dead ends: 62 [2021-11-22 16:24:18,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2021-11-22 16:24:18,573 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 221 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:18,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 60 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:24:18,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-22 16:24:18,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2021-11-22 16:24:18,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 57 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:18,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2021-11-22 16:24:18,583 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 23 [2021-11-22 16:24:18,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:18,588 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2021-11-22 16:24:18,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 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) [2021-11-22 16:24:18,589 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2021-11-22 16:24:18,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 16:24:18,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:18,590 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:18,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 16:24:18,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:18,804 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 16:24:18,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:18,805 INFO L85 PathProgramCache]: Analyzing trace with hash -284290062, now seen corresponding path program 1 times [2021-11-22 16:24:18,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:18,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371453075] [2021-11-22 16:24:18,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:18,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:18,815 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 16:24:18,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [567591691] [2021-11-22 16:24:18,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:18,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:18,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:24:18,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:24:18,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 16:24:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:18,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 16:24:18,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:24:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:19,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:24:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:19,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:19,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371453075] [2021-11-22 16:24:19,597 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 16:24:19,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567591691] [2021-11-22 16:24:19,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567591691] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:24:19,598 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 16:24:19,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 11 [2021-11-22 16:24:19,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298280951] [2021-11-22 16:24:19,599 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 16:24:19,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 16:24:19,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 16:24:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-22 16:24:19,600 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 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) [2021-11-22 16:24:20,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:20,015 INFO L93 Difference]: Finished difference Result 93 states and 100 transitions. [2021-11-22 16:24:20,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 16:24:20,016 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 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) Word has length 27 [2021-11-22 16:24:20,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:20,017 INFO L225 Difference]: With dead ends: 93 [2021-11-22 16:24:20,017 INFO L226 Difference]: Without dead ends: 81 [2021-11-22 16:24:20,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2021-11-22 16:24:20,018 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 123 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:20,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 111 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 16:24:20,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-22 16:24:20,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 65. [2021-11-22 16:24:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 63 states have (on average 1.126984126984127) internal successors, (71), 64 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:20,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2021-11-22 16:24:20,032 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 27 [2021-11-22 16:24:20,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:20,032 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2021-11-22 16:24:20,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 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) [2021-11-22 16:24:20,033 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2021-11-22 16:24:20,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-22 16:24:20,034 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:20,034 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:20,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 16:24:20,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-22 16:24:20,235 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)] === [2021-11-22 16:24:20,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:20,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1121458074, now seen corresponding path program 1 times [2021-11-22 16:24:20,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:20,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784557416] [2021-11-22 16:24:20,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:20,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:20,247 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 16:24:20,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [40901562] [2021-11-22 16:24:20,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:20,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:20,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:24:20,254 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:24:20,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 16:24:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:20,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-22 16:24:20,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:24:21,102 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:21,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:24:23,162 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:23,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:23,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784557416] [2021-11-22 16:24:23,163 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 16:24:23,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40901562] [2021-11-22 16:24:23,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40901562] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:24:23,163 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 16:24:23,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 15 [2021-11-22 16:24:23,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348978630] [2021-11-22 16:24:23,164 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 16:24:23,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-22 16:24:23,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:23,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-22 16:24:23,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-11-22 16:24:23,165 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:36,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:36,127 INFO L93 Difference]: Finished difference Result 126 states and 137 transitions. [2021-11-22 16:24:36,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 16:24:36,127 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-22 16:24:36,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:36,129 INFO L225 Difference]: With dead ends: 126 [2021-11-22 16:24:36,129 INFO L226 Difference]: Without dead ends: 124 [2021-11-22 16:24:36,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-11-22 16:24:36,131 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 247 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:36,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 113 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-22 16:24:36,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-22 16:24:36,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 72. [2021-11-22 16:24:36,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 70 states have (on average 1.1285714285714286) internal successors, (79), 71 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:36,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2021-11-22 16:24:36,157 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 34 [2021-11-22 16:24:36,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:36,157 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2021-11-22 16:24:36,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:36,158 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2021-11-22 16:24:36,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-22 16:24:36,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:36,159 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:36,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 16:24:36,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:36,380 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)] === [2021-11-22 16:24:36,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:36,381 INFO L85 PathProgramCache]: Analyzing trace with hash 938986604, now seen corresponding path program 1 times [2021-11-22 16:24:36,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:36,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500997293] [2021-11-22 16:24:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:36,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:36,390 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 16:24:36,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972496873] [2021-11-22 16:24:36,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:36,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:36,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:24:36,392 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:24:36,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 16:24:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:36,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-22 16:24:36,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:24:38,614 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:24:38,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:24:39,656 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-22 16:24:39,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:39,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500997293] [2021-11-22 16:24:39,657 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 16:24:39,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972496873] [2021-11-22 16:24:39,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972496873] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 16:24:39,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 16:24:39,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 20 [2021-11-22 16:24:39,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835132095] [2021-11-22 16:24:39,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:39,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 16:24:39,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:39,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 16:24:39,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2021-11-22 16:24:39,660 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:40,437 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2021-11-22 16:24:40,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 16:24:40,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-22 16:24:40,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:40,439 INFO L225 Difference]: With dead ends: 72 [2021-11-22 16:24:40,439 INFO L226 Difference]: Without dead ends: 55 [2021-11-22 16:24:40,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-22 16:24:40,440 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 67 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:40,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 53 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 16:24:40,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-22 16:24:40,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-22 16:24:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.0925925925925926) internal successors, (59), 54 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-11-22 16:24:40,450 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 40 [2021-11-22 16:24:40,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:40,450 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-11-22 16:24:40,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:40,451 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-11-22 16:24:40,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-22 16:24:40,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:40,457 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:40,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-22 16:24:40,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:40,681 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 16:24:40,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:40,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1071507273, now seen corresponding path program 1 times [2021-11-22 16:24:40,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:40,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717407532] [2021-11-22 16:24:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:40,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:40,698 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 16:24:40,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2126925542] [2021-11-22 16:24:40,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:40,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:40,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:24:40,716 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:24:40,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-22 16:24:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:24:40,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 16:24:40,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:24:40,988 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-22 16:24:40,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 16:24:40,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:40,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717407532] [2021-11-22 16:24:40,989 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 16:24:40,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126925542] [2021-11-22 16:24:40,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126925542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:40,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:40,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 16:24:40,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234397838] [2021-11-22 16:24:40,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:40,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 16:24:40,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:40,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 16:24:40,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:24:40,992 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:41,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:41,072 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2021-11-22 16:24:41,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 16:24:41,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-22 16:24:41,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:41,073 INFO L225 Difference]: With dead ends: 71 [2021-11-22 16:24:41,073 INFO L226 Difference]: Without dead ends: 55 [2021-11-22 16:24:41,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:24:41,074 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:41,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 72 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:24:41,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-22 16:24:41,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-22 16:24:41,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.0740740740740742) internal successors, (58), 54 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:41,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-11-22 16:24:41,084 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 49 [2021-11-22 16:24:41,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:41,084 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-11-22 16:24:41,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:41,085 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-11-22 16:24:41,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-22 16:24:41,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:24:41,086 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:41,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-22 16:24:41,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-22 16:24:41,312 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)] === [2021-11-22 16:24:41,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:24:41,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1772571851, now seen corresponding path program 2 times [2021-11-22 16:24:41,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:24:41,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089334508] [2021-11-22 16:24:41,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:24:41,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:24:41,322 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 16:24:41,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1215114365] [2021-11-22 16:24:41,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 16:24:41,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:41,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:24:41,323 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:24:41,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-22 16:24:41,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 16:24:41,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 16:24:41,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 16:24:41,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:24:41,681 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 16:24:41,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 16:24:41,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:24:41,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089334508] [2021-11-22 16:24:41,682 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 16:24:41,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215114365] [2021-11-22 16:24:41,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215114365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:24:41,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:24:41,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-22 16:24:41,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022175365] [2021-11-22 16:24:41,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:24:41,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 16:24:41,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:24:41,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 16:24:41,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-22 16:24:41,685 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:41,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:24:41,828 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2021-11-22 16:24:41,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 16:24:41,829 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-22 16:24:41,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:24:41,829 INFO L225 Difference]: With dead ends: 55 [2021-11-22 16:24:41,829 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 16:24:41,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-22 16:24:41,830 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 36 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:24:41,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 31 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:24:41,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 16:24:41,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 16:24:41,831 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) [2021-11-22 16:24:41,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 16:24:41,831 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2021-11-22 16:24:41,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:24:41,831 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:24:41,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:24:41,831 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 16:24:41,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 16:24:41,834 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2021-11-22 16:24:41,834 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-11-22 16:24:41,834 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2021-11-22 16:24:41,834 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2021-11-22 16:24:41,835 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2021-11-22 16:24:41,835 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2021-11-22 16:24:41,835 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-11-22 16:24:41,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-22 16:24:42,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:24:42,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 16:24:43,003 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-22 16:24:43,003 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-11-22 16:24:43,003 INFO L858 garLoopResultBuilder]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2021-11-22 16:24:43,003 INFO L858 garLoopResultBuilder]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2021-11-22 16:24:43,003 INFO L854 garLoopResultBuilder]: At program point L36-2(lines 36 44) the Hoare annotation is: (let ((.cse4 (mod |ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse0 (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (.cse1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (.cse2 (<= .cse4 1)) (.cse3 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and .cse0 (<= .cse1 |ULTIMATE.start_main_~r~0#1|) .cse2 (= 2 |ULTIMATE.start_main_~p~0#1|) (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= (div (* |ULTIMATE.start_main_~d~0#1| (- 1)) (- 2)) .cse1) .cse3 (= |ULTIMATE.start_main_~r~0#1| .cse4) (< (div (div (+ (- 2) |ULTIMATE.start_main_~d~0#1|) 2) (- 4294967296)) 1)) (and .cse0 (<= .cse1 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse1) .cse2 .cse3 (< (div (+ (- 1) |ULTIMATE.start_main_~d~0#1|) (- 4294967296)) 1) (= (+ (* 4294967296 (div |ULTIMATE.start_main_~A~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~A~0#1|))))) [2021-11-22 16:24:43,003 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-22 16:24:43,004 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 16:24:43,004 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 16:24:43,004 INFO L858 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-11-22 16:24:43,004 INFO L858 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-11-22 16:24:43,004 INFO L858 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2021-11-22 16:24:43,004 INFO L861 garLoopResultBuilder]: At program point L62(lines 22 63) the Hoare annotation is: true [2021-11-22 16:24:43,004 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-22 16:24:43,004 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2021-11-22 16:24:43,004 INFO L858 garLoopResultBuilder]: For program point L54-2(lines 22 63) no Hoare annotation was computed. [2021-11-22 16:24:43,004 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 46 58) no Hoare annotation was computed. [2021-11-22 16:24:43,004 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-22 16:24:43,004 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-22 16:24:43,005 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-11-22 16:24:43,005 INFO L854 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (.cse1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (.cse2 (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) (.cse3 (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|)) (.cse4 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse5 (= (+ (* 4294967296 (div |ULTIMATE.start_main_~A~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~A~0#1|))) (or (and .cse0 (<= .cse1 |ULTIMATE.start_main_~r~0#1|) .cse2 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse3 (<= (div (* |ULTIMATE.start_main_~d~0#1| (- 1)) (- 2)) .cse1) .cse4 (< (div (div (+ (- 2) |ULTIMATE.start_main_~d~0#1|) 2) (- 4294967296)) 1) .cse5) (and .cse0 (<= .cse1 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse1) .cse2 .cse3 .cse4 (< (div (+ (- 1) |ULTIMATE.start_main_~d~0#1|) (- 4294967296)) 1) .cse5))) [2021-11-22 16:24:43,005 INFO L858 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-11-22 16:24:43,005 INFO L854 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (.cse1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (.cse2 (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) (.cse3 (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|)) (.cse4 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse5 (= (+ (* 4294967296 (div |ULTIMATE.start_main_~A~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~A~0#1|))) (or (and .cse0 (<= .cse1 |ULTIMATE.start_main_~r~0#1|) .cse2 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse3 (<= (div (* |ULTIMATE.start_main_~d~0#1| (- 1)) (- 2)) .cse1) .cse4 (< (div (div (+ (- 2) |ULTIMATE.start_main_~d~0#1|) 2) (- 4294967296)) 1) .cse5) (and .cse0 (<= .cse1 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse1) .cse2 .cse3 .cse4 (< (div (+ (- 1) |ULTIMATE.start_main_~d~0#1|) (- 4294967296)) 1) .cse5))) [2021-11-22 16:24:43,005 INFO L858 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-11-22 16:24:43,005 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-11-22 16:24:43,005 INFO L854 garLoopResultBuilder]: At program point L15-8(lines 14 20) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (.cse1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (.cse2 (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) (.cse3 (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|)) (.cse4 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse5 (= (+ (* 4294967296 (div |ULTIMATE.start_main_~A~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~A~0#1|))) (or (and .cse0 (<= .cse1 |ULTIMATE.start_main_~r~0#1|) .cse2 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse3 (<= (div (* |ULTIMATE.start_main_~d~0#1| (- 1)) (- 2)) .cse1) .cse4 (< (div (div (+ (- 2) |ULTIMATE.start_main_~d~0#1|) 2) (- 4294967296)) 1) .cse5) (and .cse0 (<= .cse1 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse1) .cse2 .cse3 .cse4 (< (div (+ (- 1) |ULTIMATE.start_main_~d~0#1|) (- 4294967296)) 1) .cse5))) [2021-11-22 16:24:43,005 INFO L858 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-11-22 16:24:43,005 INFO L854 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (.cse8 (mod |ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse2 (<= .cse8 1)) (.cse0 (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (.cse6 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse7 (= |ULTIMATE.start_main_~d~0#1| .cse1)) (.cse3 (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|)) (.cse4 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~r~0#1| .cse8))) (or (and .cse0 (<= .cse1 |ULTIMATE.start_main_~r~0#1|) .cse2 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse3 (<= (div (* |ULTIMATE.start_main_~d~0#1| (- 1)) (- 2)) .cse1) .cse4 (< |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~d~0#1|) .cse5) (and .cse0 .cse6 .cse7 .cse2 .cse3 (= (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~d~0#1|)) .cse8) (= |ULTIMATE.start_main_~q~0#1| 1) (< .cse8 (* 2 .cse1)) (<= .cse1 .cse8)) (and .cse0 (<= .cse1 1) .cse6 .cse7 .cse3 .cse4 .cse5 (< |ULTIMATE.start_main_~r~0#1| .cse1))))) [2021-11-22 16:24:43,005 INFO L858 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-11-22 16:24:43,006 INFO L854 garLoopResultBuilder]: At program point L15-14(lines 14 20) the Hoare annotation is: (let ((.cse1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (.cse7 (mod |ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse4 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~r~0#1| .cse7)) (.cse0 (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (.cse6 (= |ULTIMATE.start_main_~d~0#1| .cse1)) (.cse2 (<= .cse7 1)) (.cse3 (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|))) (or (and .cse0 (<= .cse1 |ULTIMATE.start_main_~r~0#1|) .cse2 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse3 (<= (div (* |ULTIMATE.start_main_~d~0#1| (- 1)) (- 2)) .cse1) .cse4 (< |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~d~0#1|) .cse5) (and .cse0 (<= .cse1 1) (= |ULTIMATE.start_main_~p~0#1| 1) .cse6 .cse3 .cse4 .cse5 (< |ULTIMATE.start_main_~r~0#1| .cse1)) (and .cse0 .cse6 .cse2 .cse3 (= (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~d~0#1|)) .cse7) (= |ULTIMATE.start_main_~q~0#1| 1) (= (+ (* .cse1 |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~r~0#1| (* .cse1 |ULTIMATE.start_main_~q~0#1|)) (+ |ULTIMATE.start_main_~d~0#1| .cse7)) (< .cse7 (* 2 .cse1)) (<= .cse1 .cse7))))) [2021-11-22 16:24:43,006 INFO L858 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-11-22 16:24:43,006 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 16:24:43,006 INFO L854 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (and (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= .cse0 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse0) (<= 1 .cse0) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)))) [2021-11-22 16:24:43,006 INFO L858 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-11-22 16:24:43,006 INFO L861 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-11-22 16:24:43,006 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-22 16:24:43,007 INFO L858 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-11-22 16:24:43,007 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-11-22 16:24:43,007 INFO L858 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-11-22 16:24:43,007 INFO L858 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-11-22 16:24:43,007 INFO L858 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-11-22 16:24:43,007 INFO L858 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-11-22 16:24:43,007 INFO L858 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-11-22 16:24:43,007 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 16:24:43,007 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-11-22 16:24:43,007 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-22 16:24:43,010 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:24:43,011 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 16:24:43,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 04:24:43 BoogieIcfgContainer [2021-11-22 16:24:43,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 16:24:43,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:24:43,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:24:43,036 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:24:43,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:24:14" (3/4) ... [2021-11-22 16:24:43,039 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 16:24:43,051 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-22 16:24:43,051 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-22 16:24:43,052 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 16:24:43,052 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 16:24:43,104 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 16:24:43,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:24:43,105 INFO L158 Benchmark]: Toolchain (without parser) took 29069.39ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 75.5MB in the beginning and 58.4MB in the end (delta: 17.1MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2021-11-22 16:24:43,105 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 107.0MB. Free memory was 62.3MB in the beginning and 62.2MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:24:43,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.14ms. Allocated memory is still 107.0MB. Free memory was 75.3MB in the beginning and 81.6MB in the end (delta: -6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 16:24:43,106 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.15ms. Allocated memory is still 107.0MB. Free memory was 81.6MB in the beginning and 80.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:24:43,106 INFO L158 Benchmark]: Boogie Preprocessor took 52.00ms. Allocated memory is still 107.0MB. Free memory was 80.0MB in the beginning and 79.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:24:43,106 INFO L158 Benchmark]: RCFGBuilder took 316.19ms. Allocated memory is still 107.0MB. Free memory was 78.6MB in the beginning and 68.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 16:24:43,107 INFO L158 Benchmark]: TraceAbstraction took 28278.03ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 67.8MB in the beginning and 62.6MB in the end (delta: 5.2MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2021-11-22 16:24:43,107 INFO L158 Benchmark]: Witness Printer took 68.46ms. Allocated memory is still 130.0MB. Free memory was 62.6MB in the beginning and 58.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 16:24:43,109 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 107.0MB. Free memory was 62.3MB in the beginning and 62.2MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.14ms. Allocated memory is still 107.0MB. Free memory was 75.3MB in the beginning and 81.6MB in the end (delta: -6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.15ms. Allocated memory is still 107.0MB. Free memory was 81.6MB in the beginning and 80.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.00ms. Allocated memory is still 107.0MB. Free memory was 80.0MB in the beginning and 79.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 316.19ms. Allocated memory is still 107.0MB. Free memory was 78.6MB in the beginning and 68.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 28278.03ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 67.8MB in the beginning and 62.6MB in the end (delta: 5.2MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. * Witness Printer took 68.46ms. Allocated memory is still 130.0MB. Free memory was 62.6MB in the beginning and 58.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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, 45 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 28.2s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 15.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1044 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1044 mSDsluCounter, 796 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 511 mSDsCounter, 295 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 780 IncrementalHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 295 mSolverCounterUnsat, 285 mSDtfsCounter, 780 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 429 GetRequests, 301 SyntacticMatches, 5 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=8, InterpolantAutomatonStates: 102, 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, 11 MinimizatonAttempts, 117 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 26 NumberOfFragments, 660 HoareAnnotationTreeSize, 9 FomulaSimplifications, 519 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 591 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 400 ConstructedInterpolants, 0 QuantifiedInterpolants, 6637 SizeOfPredicates, 61 NumberOfNonLiveVariables, 881 ConjunctsInSsa, 158 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 89/146 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((cond == 1 && B % 4294967296 <= r) && A % 4294967296 <= 1) && 2 == p) && 1 <= cond) && d * -1 / -2 <= B % 4294967296) && q == 0) && r < d) && r == A % 4294967296) || ((((((((cond == 1 && p == 1) && d == B % 4294967296) && A % 4294967296 <= 1) && 1 <= cond) && r + q * d == A % 4294967296) && q == 1) && A % 4294967296 < 2 * (B % 4294967296)) && B % 4294967296 <= A % 4294967296)) || (((((((cond == 1 && B % 4294967296 <= 1) && p == 1) && d == B % 4294967296) && 1 <= cond) && q == 0) && r == A % 4294967296) && r < B % 4294967296) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((cond == 1 && B % 4294967296 <= 1) && p == 1) && d == B % 4294967296) && 1 <= B % 4294967296) && !(cond == 0) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((cond == 1 && B % 4294967296 <= r) && A % 4294967296 <= 1) && 2 == p) && 1 <= cond) && d * -1 / -2 <= B % 4294967296) && q == 0) && r < d) && r == A % 4294967296) || (((((((cond == 1 && B % 4294967296 <= 1) && p == 1) && d == B % 4294967296) && 1 <= cond) && q == 0) && r == A % 4294967296) && r < B % 4294967296)) || ((((((((cond == 1 && d == B % 4294967296) && A % 4294967296 <= 1) && 1 <= cond) && r + q * d == A % 4294967296) && q == 1) && B % 4294967296 * p + r + B % 4294967296 * q == d + A % 4294967296) && A % 4294967296 < 2 * (B % 4294967296)) && B % 4294967296 <= A % 4294967296) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((cond == 1 && B % 4294967296 <= r) && A % 4294967296 <= 1) && 2 == p) && 1 <= cond) && d * -1 / -2 <= B % 4294967296) && q == 0) && (-2 + d) / 2 / -4294967296 < 1) && 4294967296 * (A / 4294967296) + r == A) || ((((((((cond == 1 && B % 4294967296 <= 1) && p == 1) && d == B % 4294967296) && A % 4294967296 <= 1) && 1 <= cond) && q == 0) && (-1 + d) / -4294967296 < 1) && 4294967296 * (A / 4294967296) + r == A) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((cond == 1 && B % 4294967296 <= r) && A % 4294967296 <= 1) && 2 == p) && 1 <= cond) && d * -1 / -2 <= B % 4294967296) && q == 0) && (-2 + d) / 2 / -4294967296 < 1) && 4294967296 * (A / 4294967296) + r == A) || ((((((((cond == 1 && B % 4294967296 <= 1) && p == 1) && d == B % 4294967296) && A % 4294967296 <= 1) && 1 <= cond) && q == 0) && (-1 + d) / -4294967296 < 1) && 4294967296 * (A / 4294967296) + r == A) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((cond == 1 && B % 4294967296 <= r) && A % 4294967296 <= 1) && 2 == p) && 1 <= cond) && d * -1 / -2 <= B % 4294967296) && q == 0) && (-2 + d) / 2 / -4294967296 < 1) && 4294967296 * (A / 4294967296) + r == A) || ((((((((cond == 1 && B % 4294967296 <= 1) && p == 1) && d == B % 4294967296) && A % 4294967296 <= 1) && 1 <= cond) && q == 0) && (-1 + d) / -4294967296 < 1) && 4294967296 * (A / 4294967296) + r == A) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((cond == 1 && B % 4294967296 <= r) && A % 4294967296 <= 1) && 2 == p) && 1 <= cond) && d * -1 / -2 <= B % 4294967296) && q == 0) && r == A % 4294967296) && (-2 + d) / 2 / -4294967296 < 1) || (((((((cond == 1 && B % 4294967296 <= 1) && p == 1) && d == B % 4294967296) && A % 4294967296 <= 1) && q == 0) && (-1 + d) / -4294967296 < 1) && 4294967296 * (A / 4294967296) + r == A) RESULT: Ultimate proved your program to be correct! [2021-11-22 16:24:43,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd635f0-576d-4da4-a7aa-a49b8e6bb6ea/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE