./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU --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 35aee247a9d57b19731affe394846ba9ce20d46b03fd5dbce1e446f98386181b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:08:57,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:08:57,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:08:57,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:08:57,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:08:57,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:08:57,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:08:57,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:08:57,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:08:57,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:08:57,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:08:57,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:08:57,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:08:57,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:08:57,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:08:57,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:08:57,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:08:57,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:08:57,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:08:57,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:08:57,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:08:57,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:08:57,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:08:57,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:08:57,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:08:57,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:08:57,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:08:57,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:08:57,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:08:57,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:08:57,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:08:57,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:08:57,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:08:57,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:08:57,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:08:57,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:08:57,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:08:57,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:08:57,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:08:57,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:08:57,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:08:57,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 23:08:58,028 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:08:58,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:08:58,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:08:58,029 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:08:58,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:08:58,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:08:58,031 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:08:58,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:08:58,032 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:08:58,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:08:58,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:08:58,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:08:58,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:08:58,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:08:58,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:08:58,034 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:08:58,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:08:58,035 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:08:58,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:08:58,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:08:58,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:08:58,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:08:58,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:08:58,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:08:58,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:08:58,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:08:58,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:08:58,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:08:58,039 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:08:58,039 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:08:58,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:08:58,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:08:58,040 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_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35aee247a9d57b19731affe394846ba9ce20d46b03fd5dbce1e446f98386181b [2021-11-02 23:08:58,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:08:58,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:08:58,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:08:58,370 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:08:58,375 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:08:58,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c [2021-11-02 23:08:58,453 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/data/46f46bbbc/da73204def7b4704a5ac351527e55133/FLAGceb55fa3b [2021-11-02 23:08:58,985 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:08:58,985 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c [2021-11-02 23:08:58,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/data/46f46bbbc/da73204def7b4704a5ac351527e55133/FLAGceb55fa3b [2021-11-02 23:08:59,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/data/46f46bbbc/da73204def7b4704a5ac351527e55133 [2021-11-02 23:08:59,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:08:59,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:08:59,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:08:59,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:08:59,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:08:59,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef457a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59, skipping insertion in model container [2021-11-02 23:08:59,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:08:59,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:08:59,623 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c[576,589] [2021-11-02 23:08:59,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:08:59,660 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:08:59,675 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c[576,589] [2021-11-02 23:08:59,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:08:59,699 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:08:59,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59 WrapperNode [2021-11-02 23:08:59,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:08:59,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:08:59,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:08:59,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:08:59,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:08:59,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:08:59,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:08:59,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:08:59,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:08:59,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:08:59,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:08:59,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:08:59,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:08:59,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:59,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:59,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:08:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:08:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:08:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:08:59,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:09:00,186 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:09:00,186 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-11-02 23:09:00,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:09:00 BoogieIcfgContainer [2021-11-02 23:09:00,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:09:00,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:09:00,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:09:00,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:09:00,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:08:59" (1/3) ... [2021-11-02 23:09:00,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498df04d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:09:00, skipping insertion in model container [2021-11-02 23:09:00,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59" (2/3) ... [2021-11-02 23:09:00,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498df04d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:09:00, skipping insertion in model container [2021-11-02 23:09:00,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:09:00" (3/3) ... [2021-11-02 23:09:00,199 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound1.c [2021-11-02 23:09:00,206 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:09:00,206 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-02 23:09:00,266 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:09:00,274 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 [2021-11-02 23:09:00,275 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-02 23:09:00,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 42 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:00,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-02 23:09:00,302 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:00,303 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:00,304 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)] === [2021-11-02 23:09:00,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:00,311 INFO L85 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2021-11-02 23:09:00,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:00,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547973345] [2021-11-02 23:09:00,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:00,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:00,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:00,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:00,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547973345] [2021-11-02 23:09:00,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547973345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:09:00,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:09:00,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:09:00,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476948063] [2021-11-02 23:09:00,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 23:09:00,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:00,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 23:09:00,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:09:00,633 INFO L87 Difference]: Start difference. First operand has 43 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 42 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:00,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:00,676 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2021-11-02 23:09:00,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 23:09:00,680 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 [2021-11-02 23:09:00,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:00,693 INFO L225 Difference]: With dead ends: 83 [2021-11-02 23:09:00,693 INFO L226 Difference]: Without dead ends: 39 [2021-11-02 23:09:00,700 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:09:00,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-02 23:09:00,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-02 23:09:00,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.25) internal successors, (40), 38 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:00,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2021-11-02 23:09:00,755 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 11 [2021-11-02 23:09:00,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:00,757 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2021-11-02 23:09:00,758 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) [2021-11-02 23:09:00,758 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2021-11-02 23:09:00,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-02 23:09:00,760 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:00,760 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:00,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:09:00,762 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)] === [2021-11-02 23:09:00,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:00,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2021-11-02 23:09:00,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:00,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173641827] [2021-11-02 23:09:00,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:00,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:00,822 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:09:00,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1084813191] [2021-11-02 23:09:00,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:00,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:00,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:00,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:00,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 23:09:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:00,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-02 23:09:00,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:01,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:01,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173641827] [2021-11-02 23:09:01,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:09:01,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084813191] [2021-11-02 23:09:01,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084813191] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:09:01,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:09:01,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:09:01,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193500410] [2021-11-02 23:09:01,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 23:09:01,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:01,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 23:09:01,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-02 23:09:01,487 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:01,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:01,716 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2021-11-02 23:09:01,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:09:01,717 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-02 23:09:01,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:01,719 INFO L225 Difference]: With dead ends: 52 [2021-11-02 23:09:01,719 INFO L226 Difference]: Without dead ends: 50 [2021-11-02 23:09:01,722 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:09:01,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-02 23:09:01,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2021-11-02 23:09:01,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 40 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:01,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2021-11-02 23:09:01,737 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 11 [2021-11-02 23:09:01,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:01,738 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2021-11-02 23:09:01,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:01,739 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2021-11-02 23:09:01,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-02 23:09:01,741 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:01,742 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:01,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:09:01,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:01,968 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)] === [2021-11-02 23:09:01,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:01,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2021-11-02 23:09:01,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:01,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249603137] [2021-11-02 23:09:01,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:01,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:01,992 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:09:01,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [54212907] [2021-11-02 23:09:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:01,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:01,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:02,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:02,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 23:09:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:02,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-02 23:09:02,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:02,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:02,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249603137] [2021-11-02 23:09:02,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:09:02,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54212907] [2021-11-02 23:09:02,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54212907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:09:02,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:09:02,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:09:02,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260543717] [2021-11-02 23:09:02,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 23:09:02,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:02,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 23:09:02,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-02 23:09:02,419 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:02,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:02,697 INFO L93 Difference]: Finished difference Result 69 states and 71 transitions. [2021-11-02 23:09:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:09:02,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-02 23:09:02,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:02,703 INFO L225 Difference]: With dead ends: 69 [2021-11-02 23:09:02,703 INFO L226 Difference]: Without dead ends: 61 [2021-11-02 23:09:02,705 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:09:02,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-02 23:09:02,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2021-11-02 23:09:02,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 52 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:02,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2021-11-02 23:09:02,727 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 13 [2021-11-02 23:09:02,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:02,727 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2021-11-02 23:09:02,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:02,728 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2021-11-02 23:09:02,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-02 23:09:02,729 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:02,729 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:02,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:09:02,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-02 23:09:02,944 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)] === [2021-11-02 23:09:02,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:02,944 INFO L85 PathProgramCache]: Analyzing trace with hash 916732292, now seen corresponding path program 1 times [2021-11-02 23:09:02,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:02,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379156097] [2021-11-02 23:09:02,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:02,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:02,969 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:09:02,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1653945423] [2021-11-02 23:09:02,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:02,973 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:02,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:02,974 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:03,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-02 23:09:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:03,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-02 23:09:03,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:03,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:03,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:03,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379156097] [2021-11-02 23:09:03,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:09:03,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653945423] [2021-11-02 23:09:03,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653945423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:09:03,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:09:03,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-02 23:09:03,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937990148] [2021-11-02 23:09:03,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:09:03,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:03,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:09:03,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:09:03,432 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:03,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:03,862 INFO L93 Difference]: Finished difference Result 93 states and 103 transitions. [2021-11-02 23:09:03,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-02 23:09:03,863 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-02 23:09:03,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:03,864 INFO L225 Difference]: With dead ends: 93 [2021-11-02 23:09:03,864 INFO L226 Difference]: Without dead ends: 87 [2021-11-02 23:09:03,865 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2021-11-02 23:09:03,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-02 23:09:03,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 72. [2021-11-02 23:09:03,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 71 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:03,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2021-11-02 23:09:03,881 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 16 [2021-11-02 23:09:03,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:03,882 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2021-11-02 23:09:03,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:03,882 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2021-11-02 23:09:03,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-02 23:09:03,883 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:03,883 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:03,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:09:04,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:04,088 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-02 23:09:04,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:04,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2015957290, now seen corresponding path program 1 times [2021-11-02 23:09:04,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:04,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746937781] [2021-11-02 23:09:04,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:04,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:04,109 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:09:04,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [577923680] [2021-11-02 23:09:04,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:04,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:04,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:04,111 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:04,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-02 23:09:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:04,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-02 23:09:04,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:04,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:04,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746937781] [2021-11-02 23:09:04,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:09:04,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577923680] [2021-11-02 23:09:04,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577923680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:09:04,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:09:04,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 23:09:04,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888004683] [2021-11-02 23:09:04,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 23:09:04,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:04,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 23:09:04,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-02 23:09:04,464 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:04,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:04,623 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2021-11-02 23:09:04,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:09:04,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-02 23:09:04,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:04,625 INFO L225 Difference]: With dead ends: 72 [2021-11-02 23:09:04,625 INFO L226 Difference]: Without dead ends: 70 [2021-11-02 23:09:04,626 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-02 23:09:04,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-02 23:09:04,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-02 23:09:04,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 64 states have (on average 1.203125) internal successors, (77), 69 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:04,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2021-11-02 23:09:04,637 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 20 [2021-11-02 23:09:04,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:04,638 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2021-11-02 23:09:04,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:04,638 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2021-11-02 23:09:04,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-02 23:09:04,639 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:04,639 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:04,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:09:04,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:04,863 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)] === [2021-11-02 23:09:04,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:04,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1552659725, now seen corresponding path program 1 times [2021-11-02 23:09:04,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:04,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591121886] [2021-11-02 23:09:04,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:04,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:04,882 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:09:04,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738911907] [2021-11-02 23:09:04,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:04,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:04,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:04,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:04,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-02 23:09:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:05,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-02 23:09:05,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:05,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:05,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:05,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591121886] [2021-11-02 23:09:05,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:09:05,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738911907] [2021-11-02 23:09:05,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738911907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:09:05,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:09:05,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:09:05,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710144206] [2021-11-02 23:09:05,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 23:09:05,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:05,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 23:09:05,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-02 23:09:05,316 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:05,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:05,500 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2021-11-02 23:09:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 23:09:05,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-02 23:09:05,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:05,504 INFO L225 Difference]: With dead ends: 91 [2021-11-02 23:09:05,504 INFO L226 Difference]: Without dead ends: 41 [2021-11-02 23:09:05,505 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:09:05,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-02 23:09:05,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2021-11-02 23:09:05,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 37 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:05,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2021-11-02 23:09:05,512 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 25 [2021-11-02 23:09:05,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:05,512 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2021-11-02 23:09:05,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:05,513 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2021-11-02 23:09:05,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-02 23:09:05,514 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:05,514 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:05,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-02 23:09:05,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-02 23:09:05,740 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-02 23:09:05,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:05,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1755069467, now seen corresponding path program 1 times [2021-11-02 23:09:05,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:05,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005385017] [2021-11-02 23:09:05,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:05,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:05,763 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:09:05,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778179651] [2021-11-02 23:09:05,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:05,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:05,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:05,767 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:05,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-02 23:09:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:05,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-02 23:09:05,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:06,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:06,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:06,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005385017] [2021-11-02 23:09:06,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:09:06,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778179651] [2021-11-02 23:09:06,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778179651] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:06,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 23:09:06,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-11-02 23:09:06,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924676479] [2021-11-02 23:09:06,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:09:06,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:06,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:09:06,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:09:06,746 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:07,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:07,053 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2021-11-02 23:09:07,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-02 23:09:07,054 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-02 23:09:07,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:07,054 INFO L225 Difference]: With dead ends: 49 [2021-11-02 23:09:07,054 INFO L226 Difference]: Without dead ends: 0 [2021-11-02 23:09:07,055 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2021-11-02 23:09:07,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-02 23:09:07,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-02 23:09:07,056 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) [2021-11-02 23:09:07,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-02 23:09:07,056 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2021-11-02 23:09:07,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:07,056 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:09:07,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:07,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-02 23:09:07,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-02 23:09:07,062 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:09:07,063 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:09:07,063 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:09:07,063 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:09:07,064 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:09:07,064 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:09:07,064 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:09:07,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-02 23:09:07,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:07,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-02 23:09:07,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:09:07,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:09:07,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:09:07,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:09:07,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:09:07,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:09:07,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:09:07,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:09:07,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:09:07,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 23:09:07,956 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-02 23:09:07,956 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-11-02 23:09:07,956 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2021-11-02 23:09:07,956 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2021-11-02 23:09:07,957 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-02 23:09:07,957 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-02 23:09:07,957 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-02 23:09:07,957 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-11-02 23:09:07,957 INFO L857 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-11-02 23:09:07,957 INFO L857 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2021-11-02 23:09:07,957 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-02 23:09:07,958 INFO L853 garLoopResultBuilder]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (<= ULTIMATE.start_main_~y~0 1))) (or (and (= ULTIMATE.start_main_~a~0 0) .cse0 (= ULTIMATE.start_main_~b~0 0) (<= 1 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~q~0 0) (<= ULTIMATE.start_main_~r~0 1) (<= 0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) .cse1) (let ((.cse2 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~r~0))) (and .cse0 (<= ULTIMATE.start_main_~y~0 .cse2) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~x~0 .cse2) (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0) (= ULTIMATE.start_main_~a~0 1) .cse1 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))))) [2021-11-02 23:09:07,958 INFO L857 garLoopResultBuilder]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2021-11-02 23:09:07,958 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-02 23:09:07,958 INFO L853 garLoopResultBuilder]: At program point L47-2(lines 47 59) the Hoare annotation is: (and (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~a~0 1) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (<= ULTIMATE.start_main_~r~0 1) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) [2021-11-02 23:09:07,959 INFO L857 garLoopResultBuilder]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2021-11-02 23:09:07,959 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-02 23:09:07,959 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-11-02 23:09:07,961 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (<= ULTIMATE.start_main_~y~0 1))) (or (let ((.cse1 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~r~0))) (and .cse0 (<= ULTIMATE.start_main_~y~0 .cse1) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse2 (= ULTIMATE.start_main_~x~0 .cse1) (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~a~0 1) (= ULTIMATE.start_main_~q~0 1) .cse3)) (and .cse0 .cse2 (<= 1 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~q~0 0) (<= ULTIMATE.start_main_~r~0 1) (<= 0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) .cse3))) [2021-11-02 23:09:07,962 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-11-02 23:09:07,962 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 42 43) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (<= ULTIMATE.start_main_~y~0 1))) (or (let ((.cse1 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~r~0))) (and .cse0 (<= ULTIMATE.start_main_~y~0 .cse1) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse2 (= ULTIMATE.start_main_~x~0 .cse1) (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~a~0 1) (= ULTIMATE.start_main_~q~0 1) .cse3)) (and .cse0 .cse2 (<= 1 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~q~0 0) (<= ULTIMATE.start_main_~r~0 1) (<= 0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) .cse3))) [2021-11-02 23:09:07,963 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-11-02 23:09:07,964 INFO L853 garLoopResultBuilder]: At program point L15-8(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~a~0 1) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (<= ULTIMATE.start_main_~r~0 1) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) [2021-11-02 23:09:07,964 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-11-02 23:09:07,964 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~a~0 1) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (<= ULTIMATE.start_main_~r~0 1) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) [2021-11-02 23:09:07,964 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-11-02 23:09:07,965 INFO L853 garLoopResultBuilder]: At program point L15-14(lines 52 53) the Hoare annotation is: (and (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~a~0 1) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (<= ULTIMATE.start_main_~r~0 1) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) [2021-11-02 23:09:07,966 INFO L860 garLoopResultBuilder]: At program point L65(lines 22 66) the Hoare annotation is: true [2021-11-02 23:09:07,966 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-11-02 23:09:07,966 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-02 23:09:07,966 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: false [2021-11-02 23:09:07,966 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-11-02 23:09:07,967 INFO L860 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-11-02 23:09:07,967 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-02 23:09:07,967 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-11-02 23:09:07,967 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-11-02 23:09:07,968 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-11-02 23:09:07,968 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-11-02 23:09:07,968 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-11-02 23:09:07,968 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-11-02 23:09:07,968 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-11-02 23:09:07,969 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-02 23:09:07,969 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-02 23:09:07,976 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:07,979 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 23:09:08,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:09:08 BoogieIcfgContainer [2021-11-02 23:09:08,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 23:09:08,019 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:09:08,019 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:09:08,020 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:09:08,021 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:09:00" (3/4) ... [2021-11-02 23:09:08,025 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-02 23:09:08,039 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-02 23:09:08,040 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-02 23:09:08,040 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 23:09:08,041 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 23:09:08,097 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 23:09:08,097 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:09:08,099 INFO L168 Benchmark]: Toolchain (without parser) took 8722.47 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 76.6 MB in the beginning and 38.5 MB in the end (delta: 38.1 MB). Peak memory consumption was 58.8 MB. Max. memory is 16.1 GB. [2021-11-02 23:09:08,100 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory is still 63.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:09:08,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.27 ms. Allocated memory is still 104.9 MB. Free memory was 76.2 MB in the beginning and 80.7 MB in the end (delta: -4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:09:08,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.33 ms. Allocated memory is still 104.9 MB. Free memory was 80.7 MB in the beginning and 79.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:09:08,102 INFO L168 Benchmark]: Boogie Preprocessor took 29.42 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 77.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:09:08,102 INFO L168 Benchmark]: RCFGBuilder took 412.09 ms. Allocated memory is still 104.9 MB. Free memory was 77.9 MB in the beginning and 66.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 23:09:08,103 INFO L168 Benchmark]: TraceAbstraction took 7827.73 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 66.2 MB in the beginning and 41.6 MB in the end (delta: 24.6 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:09:08,104 INFO L168 Benchmark]: Witness Printer took 77.99 ms. Allocated memory is still 125.8 MB. Free memory was 41.6 MB in the beginning and 38.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 23:09:08,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory is still 63.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 323.27 ms. Allocated memory is still 104.9 MB. Free memory was 76.2 MB in the beginning and 80.7 MB in the end (delta: -4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.33 ms. Allocated memory is still 104.9 MB. Free memory was 80.7 MB in the beginning and 79.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.42 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 77.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 412.09 ms. Allocated memory is still 104.9 MB. Free memory was 77.9 MB in the beginning and 66.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7827.73 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 66.2 MB in the beginning and 41.6 MB in the end (delta: 24.6 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.1 GB. * Witness Printer took 77.99 ms. Allocated memory is still 125.8 MB. Free memory was 41.6 MB in the beginning and 38.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 159 SDtfs, 621 SDslu, 205 SDs, 0 SdLazy, 466 SolverSat, 106 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=4, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 22 NumberOfFragments, 292 HoareAnnotationTreeSize, 10 FomulaSimplifications, 390 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 10 FomulaSimplificationsInter, 174 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 939 SizeOfPredicates, 54 NumberOfNonLiveVariables, 539 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((cond == 1 && 1 == cond) && 1 <= b) && q == 0) && a == 1) && y <= r) && r <= 1) && r == x) && b == y - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (((((((cond == 1 && 1 == cond) && 1 <= b) && q == 0) && a == 1) && y <= r) && r <= 1) && r == x) && b == y - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((cond == 1 && 1 == cond) && 1 <= b) && q == 0) && a == 1) && y <= r) && r <= 1) && r == x) && b == y - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((((((((cond == 1 && y <= b + r) && b <= y) && 1 == cond) && x == b + r) && r < b) && a == 1) && q == 1) && y <= 1) || (((((((cond == 1 && 1 == cond) && 1 <= y) && q == 0) && r <= 1) && 0 <= x) && r == x) && y <= 1) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((((((cond == 1 && 1 == cond) && 1 <= b) && q == 0) && a == 1) && y <= r) && r <= 1) && r == x) && b == y - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((((((a == 0 && cond == 1) && b == 0) && 1 <= y) && q == 0) && r <= 1) && 0 <= x) && r == x) && y <= 1) || ((((((((cond == 1 && y <= b + r) && 1 == cond) && x == b + r) && r < b) && a == q) && a == 1) && y <= 1) && b == y) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((cond == 1 && y <= b + r) && b <= y) && 1 == cond) && x == b + r) && r < b) && a == 1) && q == 1) && y <= 1) || (((((((cond == 1 && 1 == cond) && 1 <= y) && q == 0) && r <= 1) && 0 <= x) && r == x) && y <= 1) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-02 23:09:08,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48be1679-89fa-467c-b479-1c7c2f324a1f/bin/uautomizer-tBqnrhUYjU/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