./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter2_alt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_alt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL --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 5bc48f0b37b49094aa2ed7125525fbb7b9a95c5af6fff8426a24c4fcf99bb295 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:40:22,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:40:22,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:40:22,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:40:22,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:40:22,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:40:22,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:40:22,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:40:22,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:40:22,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:40:22,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:40:22,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:40:22,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:40:22,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:40:22,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:40:22,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:40:22,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:40:22,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:40:22,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:40:22,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:40:22,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:40:22,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:40:22,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:40:22,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:40:22,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:40:22,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:40:22,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:40:22,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:40:22,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:40:22,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:40:22,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:40:22,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:40:22,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:40:22,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:40:22,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:40:22,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:40:22,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:40:22,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:40:22,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:40:22,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:40:22,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:40:22,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:40:22,478 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:40:22,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:40:22,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:40:22,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:40:22,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:40:22,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:40:22,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:40:22,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:40:22,482 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:40:22,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:40:22,482 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:40:22,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:40:22,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:40:22,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:40:22,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:40:22,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:40:22,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:40:22,484 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:40:22,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:40:22,485 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:40:22,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:40:22,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:40:22,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:40:22,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:40:22,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:40:22,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:40:22,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:40:22,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:40:22,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:40:22,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:40:22,488 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:40:22,489 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:40:22,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:40:22,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:40:22,490 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_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bc48f0b37b49094aa2ed7125525fbb7b9a95c5af6fff8426a24c4fcf99bb295 [2021-11-19 04:40:22,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:40:22,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:40:22,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:40:22,794 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:40:22,794 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:40:22,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-benchs/filter2_alt.c [2021-11-19 04:40:22,895 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/data/1e3326617/aaa2903c7a8e42f2b91786c695453df1/FLAG4555ab0bf [2021-11-19 04:40:23,438 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:40:23,439 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/sv-benchmarks/c/float-benchs/filter2_alt.c [2021-11-19 04:40:23,455 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/data/1e3326617/aaa2903c7a8e42f2b91786c695453df1/FLAG4555ab0bf [2021-11-19 04:40:23,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/data/1e3326617/aaa2903c7a8e42f2b91786c695453df1 [2021-11-19 04:40:23,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:40:23,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:40:23,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:40:23,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:40:23,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:40:23,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:40:23" (1/1) ... [2021-11-19 04:40:23,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193d8b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:23, skipping insertion in model container [2021-11-19 04:40:23,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:40:23" (1/1) ... [2021-11-19 04:40:23,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:40:23,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:40:24,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/sv-benchmarks/c/float-benchs/filter2_alt.c[631,644] [2021-11-19 04:40:24,034 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:40:24,043 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:40:24,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/sv-benchmarks/c/float-benchs/filter2_alt.c[631,644] [2021-11-19 04:40:24,065 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:40:24,082 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:40:24,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:24 WrapperNode [2021-11-19 04:40:24,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:40:24,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:40:24,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:40:24,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:40:24,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:24" (1/1) ... [2021-11-19 04:40:24,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:24" (1/1) ... [2021-11-19 04:40:24,122 INFO L137 Inliner]: procedures = 20, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 71 [2021-11-19 04:40:24,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:40:24,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:40:24,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:40:24,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:40:24,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:24" (1/1) ... [2021-11-19 04:40:24,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:24" (1/1) ... [2021-11-19 04:40:24,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:24" (1/1) ... [2021-11-19 04:40:24,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:24" (1/1) ... [2021-11-19 04:40:24,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:24" (1/1) ... [2021-11-19 04:40:24,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:24" (1/1) ... [2021-11-19 04:40:24,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:24" (1/1) ... [2021-11-19 04:40:24,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:40:24,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:40:24,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:40:24,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:40:24,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:24" (1/1) ... [2021-11-19 04:40:24,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:40:24,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:40:24,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:40:24,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:40:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:40:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2021-11-19 04:40:24,248 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2021-11-19 04:40:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:40:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:40:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-19 04:40:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-19 04:40:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:40:24,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:40:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-19 04:40:24,349 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:40:24,351 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:40:24,511 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:40:24,519 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:40:24,520 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:40:24,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:40:24 BoogieIcfgContainer [2021-11-19 04:40:24,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:40:24,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:40:24,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:40:24,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:40:24,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:40:23" (1/3) ... [2021-11-19 04:40:24,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9f14b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:40:24, skipping insertion in model container [2021-11-19 04:40:24,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:24" (2/3) ... [2021-11-19 04:40:24,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9f14b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:40:24, skipping insertion in model container [2021-11-19 04:40:24,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:40:24" (3/3) ... [2021-11-19 04:40:24,535 INFO L111 eAbstractionObserver]: Analyzing ICFG filter2_alt.c [2021-11-19 04:40:24,542 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:40:24,542 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:40:24,669 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:40:24,679 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 [2021-11-19 04:40:24,679 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:40:24,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:40:24,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 04:40:24,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:40:24,711 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:40:24,714 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:40:24,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:40:24,722 INFO L85 PathProgramCache]: Analyzing trace with hash -254494899, now seen corresponding path program 1 times [2021-11-19 04:40:24,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:40:24,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183790482] [2021-11-19 04:40:24,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:40:24,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:40:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:40:24,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:40:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:40:24,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-19 04:40:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:40:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 04:40:25,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:40:25,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183790482] [2021-11-19 04:40:25,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183790482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:40:25,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:40:25,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:40:25,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441954652] [2021-11-19 04:40:25,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:40:25,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:40:25,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:40:25,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:40:25,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:40:25,066 INFO L87 Difference]: Start difference. First operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:40:25,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:40:25,087 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2021-11-19 04:40:25,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:40:25,095 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-11-19 04:40:25,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:40:25,104 INFO L225 Difference]: With dead ends: 39 [2021-11-19 04:40:25,104 INFO L226 Difference]: Without dead ends: 19 [2021-11-19 04:40:25,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:40:25,114 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:40:25,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:40:25,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-19 04:40:25,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-19 04:40:25,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:40:25,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-19 04:40:25,174 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 20 [2021-11-19 04:40:25,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:40:25,175 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-19 04:40:25,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:40:25,176 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-19 04:40:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 04:40:25,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:40:25,179 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:40:25,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:40:25,180 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:40:25,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:40:25,182 INFO L85 PathProgramCache]: Analyzing trace with hash -2084909879, now seen corresponding path program 1 times [2021-11-19 04:40:25,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:40:25,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613584645] [2021-11-19 04:40:25,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:40:25,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:40:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:40:25,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:40:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:40:25,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-19 04:40:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:40:25,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 04:40:25,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:40:25,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613584645] [2021-11-19 04:40:25,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613584645] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:40:25,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:40:25,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:40:25,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233732762] [2021-11-19 04:40:25,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:40:25,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:40:25,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:40:25,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:40:25,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:40:25,405 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:40:25,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:40:25,449 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2021-11-19 04:40:25,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:40:25,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-11-19 04:40:25,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:40:25,452 INFO L225 Difference]: With dead ends: 45 [2021-11-19 04:40:25,452 INFO L226 Difference]: Without dead ends: 30 [2021-11-19 04:40:25,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:40:25,455 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 7 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:40:25,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 41 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:40:25,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-19 04:40:25,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-11-19 04:40:25,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 04:40:25,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2021-11-19 04:40:25,470 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 20 [2021-11-19 04:40:25,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:40:25,471 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2021-11-19 04:40:25,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:40:25,472 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2021-11-19 04:40:25,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 04:40:25,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:40:25,474 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:40:25,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:40:25,475 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:40:25,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:40:25,476 INFO L85 PathProgramCache]: Analyzing trace with hash 371954385, now seen corresponding path program 1 times [2021-11-19 04:40:25,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:40:25,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052564334] [2021-11-19 04:40:25,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:40:25,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:40:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:40:25,582 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:40:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:40:25,713 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:40:25,713 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 04:40:25,722 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 04:40:25,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 04:40:25,731 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-19 04:40:25,735 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:40:25,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:40:25 BoogieIcfgContainer [2021-11-19 04:40:25,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:40:25,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:40:25,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:40:25,812 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:40:25,813 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:40:24" (3/4) ... [2021-11-19 04:40:25,817 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:40:25,817 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:40:25,818 INFO L158 Benchmark]: Toolchain (without parser) took 2025.23ms. Allocated memory is still 102.8MB. Free memory was 70.1MB in the beginning and 56.6MB in the end (delta: 13.5MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-11-19 04:40:25,819 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 73.4MB. Free memory was 32.7MB in the beginning and 32.6MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:40:25,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.91ms. Allocated memory is still 102.8MB. Free memory was 69.9MB in the beginning and 79.1MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:40:25,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.64ms. Allocated memory is still 102.8MB. Free memory was 79.1MB in the beginning and 77.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:40:25,823 INFO L158 Benchmark]: Boogie Preprocessor took 31.09ms. Allocated memory is still 102.8MB. Free memory was 77.3MB in the beginning and 76.0MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 04:40:25,824 INFO L158 Benchmark]: RCFGBuilder took 366.84ms. Allocated memory is still 102.8MB. Free memory was 76.0MB in the beginning and 65.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:40:25,825 INFO L158 Benchmark]: TraceAbstraction took 1285.79ms. Allocated memory is still 102.8MB. Free memory was 64.8MB in the beginning and 56.6MB in the end (delta: 8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:40:25,825 INFO L158 Benchmark]: Witness Printer took 6.24ms. Allocated memory is still 102.8MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:40:25,831 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 73.4MB. Free memory was 32.7MB in the beginning and 32.6MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.91ms. Allocated memory is still 102.8MB. Free memory was 69.9MB in the beginning and 79.1MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.64ms. Allocated memory is still 102.8MB. Free memory was 79.1MB in the beginning and 77.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.09ms. Allocated memory is still 102.8MB. Free memory was 77.3MB in the beginning and 76.0MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 366.84ms. Allocated memory is still 102.8MB. Free memory was 76.0MB in the beginning and 65.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1285.79ms. Allocated memory is still 102.8MB. Free memory was 64.8MB in the beginning and 56.6MB in the end (delta: 8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 6.24ms. Allocated memory is still 102.8MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L19] BOOLEAN INIT; [L20] float P, X; [L32] static float E[2], S[2]; VAL [E={6:0}, INIT=0, P=0, S={5:0}, X=0] [L52] CALL, EXPR RANDOM_INPUT() VAL [E={6:0}, INIT=0, P=0, S={5:0}, X=0] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -10.f && x <= 10.f) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, E={6:0}, INIT=0, P=0, S={5:0}, X=0] [L26] RET assume_abort_if_not(x >= -10.f && x <= 10.f) [L27] return x; VAL [\result=57, E={6:0}, INIT=0, P=0, S={5:0}, X=0, x=57] [L52] RET, EXPR RANDOM_INPUT() VAL [E={6:0}, INIT=0, P=0, RANDOM_INPUT()=57, S={5:0}, X=0] [L52] X = RANDOM_INPUT() [L53] INIT = TRUE VAL [E={6:0}, INIT=1, P=0, S={5:0}, X=57] [L54] COND TRUE \read(TRUE) VAL [E={6:0}, INIT=1, P=0, S={5:0}, X=57] [L55] CALL, EXPR RANDOM_INPUT() VAL [E={6:0}, INIT=1, P=0, S={5:0}, X=57] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -10.f && x <= 10.f) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, E={6:0}, INIT=1, P=0, S={5:0}, X=57] [L26] RET assume_abort_if_not(x >= -10.f && x <= 10.f) [L27] return x; VAL [\result=52, E={6:0}, INIT=1, P=0, S={5:0}, x=52, X=57] [L55] RET, EXPR RANDOM_INPUT() VAL [E={6:0}, INIT=1, P=0, RANDOM_INPUT()=52, S={5:0}, X=57] [L55] X = RANDOM_INPUT() [L56] CALL filter2 () [L33] COND TRUE \read(INIT) [L34] S[0] = X [L35] P = X [L36] E[0] = X VAL [E={6:0}, INIT=1, P=52, S={5:0}, X=52] [L46] EXPR E[0] [L46] E[1] = E[0] [L46] E[0] = X [L47] EXPR S[0] [L47] S[1] = S[0] [L47] S[0] = P VAL [E={6:0}, INIT=1, P=52, S={5:0}, X=52] [L56] RET filter2 () [L57] INIT = FALSE VAL [E={6:0}, INIT=0, P=52, S={5:0}, X=52] [L54] COND TRUE \read(TRUE) VAL [E={6:0}, INIT=0, P=52, S={5:0}, X=52] [L55] CALL, EXPR RANDOM_INPUT() VAL [E={6:0}, INIT=0, P=52, S={5:0}, X=52] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -10.f && x <= 10.f) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, E={6:0}, INIT=0, P=52, S={5:0}, X=52] [L26] RET assume_abort_if_not(x >= -10.f && x <= 10.f) [L27] return x; VAL [\result=49, E={6:0}, INIT=0, P=52, S={5:0}, X=52, x=49] [L55] RET, EXPR RANDOM_INPUT() VAL [E={6:0}, INIT=0, P=52, RANDOM_INPUT()=49, S={5:0}, X=52] [L55] X = RANDOM_INPUT() [L56] CALL filter2 () [L33] COND FALSE !(\read(INIT)) [L39] EXPR E[0] [L40] EXPR E[1] [L41] EXPR S[0] [L42] EXPR S[1] [L38-L42] P = (((((0.4677826f * X) - (E[0] * 0.7700725f)) + (E[1] * 0.4344376f)) + (S[0] * 1.5419f)) - (S[1] * 0.6740477f)) [L43] CALL __VERIFIER_assert(P >= -15.f && P <= 15.f) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, E={6:0}, INIT=0, S={5:0}, X=49] [L14] reach_error() VAL [\old(cond)=0, cond=0, E={6:0}, INIT=0, S={5:0}, X=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 46 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=2, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 10/10 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-19 04:40:25,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_alt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL --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 5bc48f0b37b49094aa2ed7125525fbb7b9a95c5af6fff8426a24c4fcf99bb295 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:40:29,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:40:29,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:40:29,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:40:29,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:40:29,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:40:29,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:40:29,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:40:29,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:40:29,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:40:29,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:40:29,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:40:29,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:40:29,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:40:29,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:40:29,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:40:29,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:40:29,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:40:29,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:40:29,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:40:29,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:40:29,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:40:29,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:40:29,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:40:29,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:40:29,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:40:29,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:40:29,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:40:29,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:40:29,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:40:29,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:40:29,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:40:29,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:40:29,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:40:29,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:40:29,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:40:29,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:40:29,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:40:29,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:40:29,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:40:29,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:40:29,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-19 04:40:29,274 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:40:29,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:40:29,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:40:29,276 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:40:29,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:40:29,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:40:29,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:40:29,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:40:29,281 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:40:29,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:40:29,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:40:29,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:40:29,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:40:29,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:40:29,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:40:29,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:40:29,286 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 04:40:29,286 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 04:40:29,286 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:40:29,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:40:29,287 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:40:29,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:40:29,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:40:29,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:40:29,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:40:29,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:40:29,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:40:29,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:40:29,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:40:29,290 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 04:40:29,290 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 04:40:29,290 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:40:29,291 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:40:29,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:40:29,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:40:29,292 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 04:40:29,292 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bc48f0b37b49094aa2ed7125525fbb7b9a95c5af6fff8426a24c4fcf99bb295 [2021-11-19 04:40:29,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:40:29,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:40:29,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:40:29,845 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:40:29,846 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:40:29,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-benchs/filter2_alt.c [2021-11-19 04:40:29,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/data/b5fd4fa60/a6dfe495f15a4960806f47a3e07574b7/FLAG4598b5071 [2021-11-19 04:40:30,730 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:40:30,731 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/sv-benchmarks/c/float-benchs/filter2_alt.c [2021-11-19 04:40:30,741 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/data/b5fd4fa60/a6dfe495f15a4960806f47a3e07574b7/FLAG4598b5071 [2021-11-19 04:40:31,068 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/data/b5fd4fa60/a6dfe495f15a4960806f47a3e07574b7 [2021-11-19 04:40:31,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:40:31,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:40:31,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:40:31,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:40:31,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:40:31,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:40:31" (1/1) ... [2021-11-19 04:40:31,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38937d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31, skipping insertion in model container [2021-11-19 04:40:31,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:40:31" (1/1) ... [2021-11-19 04:40:31,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:40:31,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:40:31,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/sv-benchmarks/c/float-benchs/filter2_alt.c[631,644] [2021-11-19 04:40:31,330 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:40:31,349 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:40:31,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/sv-benchmarks/c/float-benchs/filter2_alt.c[631,644] [2021-11-19 04:40:31,410 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:40:31,478 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:40:31,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31 WrapperNode [2021-11-19 04:40:31,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:40:31,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:40:31,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:40:31,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:40:31,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31" (1/1) ... [2021-11-19 04:40:31,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31" (1/1) ... [2021-11-19 04:40:31,535 INFO L137 Inliner]: procedures = 21, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2021-11-19 04:40:31,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:40:31,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:40:31,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:40:31,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:40:31,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31" (1/1) ... [2021-11-19 04:40:31,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31" (1/1) ... [2021-11-19 04:40:31,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31" (1/1) ... [2021-11-19 04:40:31,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31" (1/1) ... [2021-11-19 04:40:31,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31" (1/1) ... [2021-11-19 04:40:31,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31" (1/1) ... [2021-11-19 04:40:31,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31" (1/1) ... [2021-11-19 04:40:31,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:40:31,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:40:31,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:40:31,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:40:31,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31" (1/1) ... [2021-11-19 04:40:31,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:40:31,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:40:31,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:40:31,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:40:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:40:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2021-11-19 04:40:31,697 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2021-11-19 04:40:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-19 04:40:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 04:40:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:40:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-19 04:40:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:40:31,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:40:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-19 04:40:31,884 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:40:31,900 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:40:34,342 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:40:34,351 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:40:34,354 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:40:34,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:40:34 BoogieIcfgContainer [2021-11-19 04:40:34,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:40:34,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:40:34,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:40:34,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:40:34,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:40:31" (1/3) ... [2021-11-19 04:40:34,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7315daf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:40:34, skipping insertion in model container [2021-11-19 04:40:34,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:40:31" (2/3) ... [2021-11-19 04:40:34,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7315daf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:40:34, skipping insertion in model container [2021-11-19 04:40:34,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:40:34" (3/3) ... [2021-11-19 04:40:34,372 INFO L111 eAbstractionObserver]: Analyzing ICFG filter2_alt.c [2021-11-19 04:40:34,379 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:40:34,380 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:40:34,473 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:40:34,482 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 [2021-11-19 04:40:34,485 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:40:34,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:40:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 04:40:34,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:40:34,524 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:40:34,525 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:40:34,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:40:34,533 INFO L85 PathProgramCache]: Analyzing trace with hash -254494899, now seen corresponding path program 1 times [2021-11-19 04:40:34,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:40:34,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872660295] [2021-11-19 04:40:34,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:40:34,568 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:40:34,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:40:34,577 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:40:34,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 04:40:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:40:35,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 04:40:35,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:40:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 04:40:35,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:40:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:40:35,703 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:40:35,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872660295] [2021-11-19 04:40:35,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872660295] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 04:40:35,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:40:35,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 04:40:35,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502824813] [2021-11-19 04:40:35,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:40:35,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:40:35,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:40:35,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:40:35,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:40:35,755 INFO L87 Difference]: Start difference. First operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:40:35,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:40:35,775 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2021-11-19 04:40:35,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:40:35,778 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-11-19 04:40:35,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:40:35,788 INFO L225 Difference]: With dead ends: 39 [2021-11-19 04:40:35,788 INFO L226 Difference]: Without dead ends: 19 [2021-11-19 04:40:35,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:40:35,798 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:40:35,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:40:35,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-19 04:40:35,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-19 04:40:35,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:40:35,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-19 04:40:35,848 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 20 [2021-11-19 04:40:35,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:40:35,849 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-19 04:40:35,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:40:35,850 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-19 04:40:35,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 04:40:35,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:40:35,853 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:40:35,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 04:40:36,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:40:36,078 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:40:36,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:40:36,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2084909879, now seen corresponding path program 1 times [2021-11-19 04:40:36,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:40:36,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393747760] [2021-11-19 04:40:36,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:40:36,081 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:40:36,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:40:36,083 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:40:36,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 04:40:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:40:36,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:40:36,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:40:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:40:36,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:40:36,993 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 04:40:36,994 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:40:36,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393747760] [2021-11-19 04:40:36,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393747760] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:40:36,995 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:40:36,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 04:40:36,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868396243] [2021-11-19 04:40:36,996 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:40:36,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:40:36,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:40:36,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:40:36,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:40:36,999 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 04:40:39,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 04:40:41,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 04:40:41,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:40:41,243 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2021-11-19 04:40:41,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:40:41,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2021-11-19 04:40:41,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:40:41,301 INFO L225 Difference]: With dead ends: 47 [2021-11-19 04:40:41,301 INFO L226 Difference]: Without dead ends: 32 [2021-11-19 04:40:41,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:40:41,304 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 7 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-19 04:40:41,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 57 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-11-19 04:40:41,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-19 04:40:41,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2021-11-19 04:40:41,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 04:40:41,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2021-11-19 04:40:41,318 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 20 [2021-11-19 04:40:41,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:40:41,319 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2021-11-19 04:40:41,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 04:40:41,320 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2021-11-19 04:40:41,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 04:40:41,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:40:41,322 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:40:41,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 04:40:41,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:40:41,560 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:40:41,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:40:41,561 INFO L85 PathProgramCache]: Analyzing trace with hash 371954385, now seen corresponding path program 1 times [2021-11-19 04:40:41,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:40:41,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518699837] [2021-11-19 04:40:41,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:40:41,562 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:40:41,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:40:41,564 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:40:41,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ddd00d-a352-4b4c-9fe0-27b462aece9b/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 04:40:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:40:50,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-19 04:40:50,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:40:50,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-19 04:40:51,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-11-19 04:40:51,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 04:40:51,950 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-19 04:40:51,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 189 treesize of output 131 [2021-11-19 04:40:57,817 INFO L354 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2021-11-19 04:40:57,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 740 treesize of output 392