./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float13.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y --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 2246e8060e5a1cb739ae96795323e53f6b8616d366fbcd4812e06685f0e78a45 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:33:44,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:33:44,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:33:44,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:33:44,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:33:44,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:33:44,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:33:44,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:33:44,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:33:44,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:33:44,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:33:44,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:33:44,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:33:44,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:33:44,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:33:44,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:33:44,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:33:44,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:33:44,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:33:44,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:33:44,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:33:44,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:33:44,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:33:44,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:33:44,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:33:44,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:33:44,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:33:44,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:33:44,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:33:44,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:33:44,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:33:44,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:33:44,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:33:44,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:33:44,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:33:44,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:33:44,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:33:44,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:33:44,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:33:44,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:33:44,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:33:44,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 17:33:44,676 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:33:44,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:33:44,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:33:44,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:33:44,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:33:44,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:33:44,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:33:44,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:33:44,681 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:33:44,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:33:44,681 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:33:44,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:33:44,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:33:44,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:33:44,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:33:44,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:33:44,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:33:44,683 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:33:44,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:33:44,684 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:33:44,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:33:44,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:33:44,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:33:44,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:33:44,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:33:44,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:33:44,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:33:44,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:33:44,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:33:44,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:33:44,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:33:44,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:33:44,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:33:44,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:33:44,688 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_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2246e8060e5a1cb739ae96795323e53f6b8616d366fbcd4812e06685f0e78a45 [2021-11-13 17:33:45,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:33:45,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:33:45,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:33:45,111 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:33:45,112 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:33:45,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/floats-cbmc-regression/float13.c [2021-11-13 17:33:45,195 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/data/21318bd95/b59837ee27dc4bc7987debcb02fbae44/FLAGf1497fe2b [2021-11-13 17:33:45,769 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:33:45,770 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c [2021-11-13 17:33:45,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/data/21318bd95/b59837ee27dc4bc7987debcb02fbae44/FLAGf1497fe2b [2021-11-13 17:33:46,117 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/data/21318bd95/b59837ee27dc4bc7987debcb02fbae44 [2021-11-13 17:33:46,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:33:46,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:33:46,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:33:46,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:33:46,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:33:46,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:33:46" (1/1) ... [2021-11-13 17:33:46,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f22767a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46, skipping insertion in model container [2021-11-13 17:33:46,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:33:46" (1/1) ... [2021-11-13 17:33:46,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:33:46,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:33:46,393 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[497,510] [2021-11-13 17:33:46,397 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[569,582] [2021-11-13 17:33:46,399 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[631,644] [2021-11-13 17:33:46,401 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[693,706] [2021-11-13 17:33:46,402 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[764,777] [2021-11-13 17:33:46,404 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[836,849] [2021-11-13 17:33:46,406 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[895,908] [2021-11-13 17:33:46,412 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[954,967] [2021-11-13 17:33:46,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:33:46,439 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:33:46,461 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[497,510] [2021-11-13 17:33:46,464 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[569,582] [2021-11-13 17:33:46,469 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[631,644] [2021-11-13 17:33:46,472 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[693,706] [2021-11-13 17:33:46,474 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[764,777] [2021-11-13 17:33:46,477 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[836,849] [2021-11-13 17:33:46,480 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[895,908] [2021-11-13 17:33:46,483 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[954,967] [2021-11-13 17:33:46,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:33:46,513 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:33:46,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46 WrapperNode [2021-11-13 17:33:46,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:33:46,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:33:46,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:33:46,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:33:46,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46" (1/1) ... [2021-11-13 17:33:46,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46" (1/1) ... [2021-11-13 17:33:46,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:33:46,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:33:46,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:33:46,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:33:46,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46" (1/1) ... [2021-11-13 17:33:46,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46" (1/1) ... [2021-11-13 17:33:46,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46" (1/1) ... [2021-11-13 17:33:46,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46" (1/1) ... [2021-11-13 17:33:46,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46" (1/1) ... [2021-11-13 17:33:46,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46" (1/1) ... [2021-11-13 17:33:46,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46" (1/1) ... [2021-11-13 17:33:46,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:33:46,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:33:46,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:33:46,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:33:46,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46" (1/1) ... [2021-11-13 17:33:46,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:33:46,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:46,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:46,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:33:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:33:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:33:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:33:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:33:47,031 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:33:47,032 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 17:33:47,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:33:47 BoogieIcfgContainer [2021-11-13 17:33:47,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:33:47,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:33:47,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:33:47,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:33:47,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:33:46" (1/3) ... [2021-11-13 17:33:47,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7aa2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:33:47, skipping insertion in model container [2021-11-13 17:33:47,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:46" (2/3) ... [2021-11-13 17:33:47,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7aa2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:33:47, skipping insertion in model container [2021-11-13 17:33:47,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:33:47" (3/3) ... [2021-11-13 17:33:47,046 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2021-11-13 17:33:47,053 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:33:47,054 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-13 17:33:47,132 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:33:47,140 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 [2021-11-13 17:33:47,141 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-13 17:33:47,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:47,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 17:33:47,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:33:47,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 17:33:47,168 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-13 17:33:47,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:47,175 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-11-13 17:33:47,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:47,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78694367] [2021-11-13 17:33:47,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:47,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:47,332 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:47,400 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:47,403 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 17:33:47,404 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2021-11-13 17:33:47,407 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2021-11-13 17:33:47,408 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2021-11-13 17:33:47,408 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2021-11-13 17:33:47,409 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2021-11-13 17:33:47,410 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2021-11-13 17:33:47,410 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2021-11-13 17:33:47,410 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2021-11-13 17:33:47,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:33:47,417 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-13 17:33:47,420 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 17:33:47,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:33:47 BoogieIcfgContainer [2021-11-13 17:33:47,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 17:33:47,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 17:33:47,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 17:33:47,457 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 17:33:47,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:33:47" (3/4) ... [2021-11-13 17:33:47,463 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 17:33:47,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 17:33:47,466 INFO L158 Benchmark]: Toolchain (without parser) took 1342.29ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 47.3MB in the beginning and 55.7MB in the end (delta: -8.4MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-11-13 17:33:47,468 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory was 63.3MB in the beginning and 63.2MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:33:47,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.28ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 47.1MB in the beginning and 84.0MB in the end (delta: -36.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 17:33:47,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.89ms. Allocated memory is still 113.2MB. Free memory was 84.0MB in the beginning and 82.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:33:47,475 INFO L158 Benchmark]: Boogie Preprocessor took 52.00ms. Allocated memory is still 113.2MB. Free memory was 82.4MB in the beginning and 81.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:33:47,476 INFO L158 Benchmark]: RCFGBuilder took 409.09ms. Allocated memory is still 113.2MB. Free memory was 81.4MB in the beginning and 71.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 17:33:47,478 INFO L158 Benchmark]: TraceAbstraction took 418.37ms. Allocated memory is still 113.2MB. Free memory was 70.9MB in the beginning and 56.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-13 17:33:47,480 INFO L158 Benchmark]: Witness Printer took 7.17ms. Allocated memory is still 113.2MB. Free memory was 56.2MB in the beginning and 55.7MB in the end (delta: 528.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:33:47,489 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory was 63.3MB in the beginning and 63.2MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.28ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 47.1MB in the beginning and 84.0MB in the end (delta: -36.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.89ms. Allocated memory is still 113.2MB. Free memory was 84.0MB in the beginning and 82.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.00ms. Allocated memory is still 113.2MB. Free memory was 82.4MB in the beginning and 81.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 409.09ms. Allocated memory is still 113.2MB. Free memory was 81.4MB in the beginning and 71.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 418.37ms. Allocated memory is still 113.2MB. Free memory was 70.9MB in the beginning and 56.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 7.17ms. Allocated memory is still 113.2MB. Free memory was 56.2MB in the beginning and 55.7MB in the end (delta: 528.1kB). Peak memory consumption was 2.1MB. 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: 15]: 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 14, overapproximation of someBinaryArithmeticFLOAToperation at line 5. Possible FailurePath: [L5] const float plus_infinity = 1.0f/0.0f; [L6] const float minus_infinity = 0.0f/-0.0f; [L7] const float NaN = 0.0f * (1.0f/0.0f); [L11] _Bool temp; [L14] temp = NaN < plus_infinity VAL [temp=1] [L15] COND TRUE !(!temp) VAL [temp=1] [L15] reach_error() VAL [temp=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 21]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 30]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 [2021-11-13 17:33:47,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/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_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y --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 2246e8060e5a1cb739ae96795323e53f6b8616d366fbcd4812e06685f0e78a45 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:33:50,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:33:50,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:33:50,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:33:50,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:33:50,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:33:50,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:33:50,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:33:50,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:33:50,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:33:50,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:33:50,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:33:50,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:33:50,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:33:50,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:33:50,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:33:50,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:33:50,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:33:50,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:33:50,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:33:50,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:33:50,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:33:50,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:33:50,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:33:50,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:33:50,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:33:50,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:33:50,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:33:50,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:33:50,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:33:50,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:33:50,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:33:50,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:33:50,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:33:50,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:33:50,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:33:50,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:33:50,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:33:50,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:33:50,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:33:50,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:33:50,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-13 17:33:50,784 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:33:50,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:33:50,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:33:50,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:33:50,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:33:50,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:33:50,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:33:50,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:33:50,791 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:33:50,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:33:50,793 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:33:50,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:33:50,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:33:50,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:33:50,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:33:50,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:33:50,795 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 17:33:50,795 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 17:33:50,795 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:33:50,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:33:50,796 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:33:50,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:33:50,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:33:50,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:33:50,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:33:50,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:33:50,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:33:50,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:33:50,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:33:50,799 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 17:33:50,799 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 17:33:50,799 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:33:50,800 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:33:50,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:33:50,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:33:50,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 17:33:50,801 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_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2246e8060e5a1cb739ae96795323e53f6b8616d366fbcd4812e06685f0e78a45 [2021-11-13 17:33:51,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:33:51,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:33:51,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:33:51,331 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:33:51,332 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:33:51,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/floats-cbmc-regression/float13.c [2021-11-13 17:33:51,435 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/data/6f745aa40/e8fabdf70f1b4b038a79610e085ad735/FLAGe9f4258f0 [2021-11-13 17:33:52,172 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:33:52,173 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c [2021-11-13 17:33:52,181 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/data/6f745aa40/e8fabdf70f1b4b038a79610e085ad735/FLAGe9f4258f0 [2021-11-13 17:33:52,527 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/data/6f745aa40/e8fabdf70f1b4b038a79610e085ad735 [2021-11-13 17:33:52,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:33:52,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:33:52,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:33:52,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:33:52,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:33:52,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:33:52" (1/1) ... [2021-11-13 17:33:52,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b84055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:52, skipping insertion in model container [2021-11-13 17:33:52,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:33:52" (1/1) ... [2021-11-13 17:33:52,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:33:52,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:33:52,845 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[497,510] [2021-11-13 17:33:52,853 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[569,582] [2021-11-13 17:33:52,859 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[631,644] [2021-11-13 17:33:52,862 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[693,706] [2021-11-13 17:33:52,864 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[764,777] [2021-11-13 17:33:52,867 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[836,849] [2021-11-13 17:33:52,871 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[895,908] [2021-11-13 17:33:52,874 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[954,967] [2021-11-13 17:33:52,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:33:52,895 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:33:52,916 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[497,510] [2021-11-13 17:33:52,919 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[569,582] [2021-11-13 17:33:52,922 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[631,644] [2021-11-13 17:33:52,934 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[693,706] [2021-11-13 17:33:52,937 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[764,777] [2021-11-13 17:33:52,939 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[836,849] [2021-11-13 17:33:52,942 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[895,908] [2021-11-13 17:33:52,944 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/sv-benchmarks/c/floats-cbmc-regression/float13.c[954,967] [2021-11-13 17:33:52,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:33:53,015 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:33:53,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:53 WrapperNode [2021-11-13 17:33:53,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:33:53,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:33:53,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:33:53,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:33:53,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:53" (1/1) ... [2021-11-13 17:33:53,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:53" (1/1) ... [2021-11-13 17:33:53,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:33:53,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:33:53,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:33:53,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:33:53,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:53" (1/1) ... [2021-11-13 17:33:53,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:53" (1/1) ... [2021-11-13 17:33:53,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:53" (1/1) ... [2021-11-13 17:33:53,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:53" (1/1) ... [2021-11-13 17:33:53,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:53" (1/1) ... [2021-11-13 17:33:53,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:53" (1/1) ... [2021-11-13 17:33:53,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:53" (1/1) ... [2021-11-13 17:33:53,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:33:53,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:33:53,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:33:53,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:33:53,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:53" (1/1) ... [2021-11-13 17:33:53,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:33:53,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:53,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:53,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:33:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:33:53,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:33:53,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 17:33:53,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:33:53,692 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:33:53,692 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 17:33:53,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:33:53 BoogieIcfgContainer [2021-11-13 17:33:53,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:33:53,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:33:53,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:33:53,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:33:53,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:33:52" (1/3) ... [2021-11-13 17:33:53,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdf7ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:33:53, skipping insertion in model container [2021-11-13 17:33:53,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:53" (2/3) ... [2021-11-13 17:33:53,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdf7ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:33:53, skipping insertion in model container [2021-11-13 17:33:53,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:33:53" (3/3) ... [2021-11-13 17:33:53,719 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2021-11-13 17:33:53,742 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:33:53,742 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-13 17:33:53,819 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:33:53,827 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:33:53,827 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-13 17:33:53,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:53,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 17:33:53,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:33:53,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 17:33:53,853 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-13 17:33:53,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:53,861 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-11-13 17:33:53,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:33:53,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446941361] [2021-11-13 17:33:53,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:53,909 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:33:53,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:33:53,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:33:53,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 17:33:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:54,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:33:54,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:54,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:54,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:33:54,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:54,365 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:33:54,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446941361] [2021-11-13 17:33:54,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446941361] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:33:54,366 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:33:54,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:33:54,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067107142] [2021-11-13 17:33:54,370 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:33:54,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:33:54,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:33:54,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:33:54,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:33:54,415 INFO L87 Difference]: Start difference. First operand has 37 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:54,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:33:54,500 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2021-11-13 17:33:54,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:33:54,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-13 17:33:54,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:33:54,528 INFO L225 Difference]: With dead ends: 69 [2021-11-13 17:33:54,529 INFO L226 Difference]: Without dead ends: 31 [2021-11-13 17:33:54,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:33:54,538 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 4 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.91ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 52.37ms IncrementalHoareTripleChecker+Time [2021-11-13 17:33:54,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 64 Invalid, 31 Unknown, 0 Unchecked, 2.91ms Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 9 Unchecked, 52.37ms Time] [2021-11-13 17:33:54,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-13 17:33:54,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-13 17:33:54,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.25) internal successors, (30), 30 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:54,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2021-11-13 17:33:54,584 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 4 [2021-11-13 17:33:54,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:33:54,584 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2021-11-13 17:33:54,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:54,585 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2021-11-13 17:33:54,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 17:33:54,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:33:54,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 17:33:54,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:54,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:33:54,807 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-13 17:33:54,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:54,808 INFO L85 PathProgramCache]: Analyzing trace with hash 889629862, now seen corresponding path program 1 times [2021-11-13 17:33:54,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:33:54,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477844077] [2021-11-13 17:33:54,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:54,810 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:33:54,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:33:54,816 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:33:54,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 17:33:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:54,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:33:54,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:55,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:55,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:33:55,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:55,254 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:33:55,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477844077] [2021-11-13 17:33:55,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477844077] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:33:55,255 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:33:55,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:33:55,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770943710] [2021-11-13 17:33:55,256 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:33:55,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:33:55,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:33:55,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:33:55,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:33:55,259 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:55,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:33:55,334 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2021-11-13 17:33:55,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:33:55,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-13 17:33:55,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:33:55,343 INFO L225 Difference]: With dead ends: 31 [2021-11-13 17:33:55,344 INFO L226 Difference]: Without dead ends: 29 [2021-11-13 17:33:55,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:33:55,348 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.13ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 49.52ms IncrementalHoareTripleChecker+Time [2021-11-13 17:33:55,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 77 Invalid, 25 Unknown, 0 Unchecked, 4.13ms Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 7 Unchecked, 49.52ms Time] [2021-11-13 17:33:55,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-13 17:33:55,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-13 17:33:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 28 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2021-11-13 17:33:55,364 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 6 [2021-11-13 17:33:55,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:33:55,365 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2021-11-13 17:33:55,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2021-11-13 17:33:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 17:33:55,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:33:55,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:33:55,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:55,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:33:55,580 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-13 17:33:55,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:55,581 INFO L85 PathProgramCache]: Analyzing trace with hash 235930184, now seen corresponding path program 1 times [2021-11-13 17:33:55,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:33:55,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672742625] [2021-11-13 17:33:55,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:55,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:33:55,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:33:55,588 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:33:55,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 17:33:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:55,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:33:55,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:55,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:55,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:33:55,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:55,958 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:33:55,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672742625] [2021-11-13 17:33:55,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672742625] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:33:55,959 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:33:55,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:33:55,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669484671] [2021-11-13 17:33:55,960 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:33:55,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:33:55,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:33:55,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:33:55,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:33:55,962 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:56,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:33:56,088 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2021-11-13 17:33:56,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:33:56,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-13 17:33:56,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:33:56,090 INFO L225 Difference]: With dead ends: 29 [2021-11-13 17:33:56,090 INFO L226 Difference]: Without dead ends: 27 [2021-11-13 17:33:56,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:33:56,093 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.64ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 67.79ms IncrementalHoareTripleChecker+Time [2021-11-13 17:33:56,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 40 Invalid, 29 Unknown, 0 Unchecked, 1.64ms Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 7 Unchecked, 67.79ms Time] [2021-11-13 17:33:56,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-13 17:33:56,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-13 17:33:56,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 26 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:56,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2021-11-13 17:33:56,100 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 8 [2021-11-13 17:33:56,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:33:56,100 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2021-11-13 17:33:56,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:56,101 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2021-11-13 17:33:56,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 17:33:56,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:33:56,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:33:56,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:56,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:33:56,302 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-13 17:33:56,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:56,303 INFO L85 PathProgramCache]: Analyzing trace with hash -904234870, now seen corresponding path program 1 times [2021-11-13 17:33:56,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:33:56,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125012694] [2021-11-13 17:33:56,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:56,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:33:56,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:33:56,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:33:56,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 17:33:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:56,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:33:56,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:56,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:33:56,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:56,638 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:33:56,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125012694] [2021-11-13 17:33:56,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125012694] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:33:56,638 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:33:56,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:33:56,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391781034] [2021-11-13 17:33:56,639 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:33:56,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:33:56,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:33:56,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:33:56,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:33:56,641 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:56,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:33:56,777 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2021-11-13 17:33:56,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:33:56,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-13 17:33:56,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:33:56,779 INFO L225 Difference]: With dead ends: 27 [2021-11-13 17:33:56,779 INFO L226 Difference]: Without dead ends: 25 [2021-11-13 17:33:56,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:33:56,781 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.17ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 57.12ms IncrementalHoareTripleChecker+Time [2021-11-13 17:33:56,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 32 Invalid, 26 Unknown, 0 Unchecked, 1.17ms Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 4 Unchecked, 57.12ms Time] [2021-11-13 17:33:56,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-13 17:33:56,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-13 17:33:56,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 24 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:56,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2021-11-13 17:33:56,787 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 10 [2021-11-13 17:33:56,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:33:56,790 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2021-11-13 17:33:56,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2021-11-13 17:33:56,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 17:33:56,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:33:56,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:33:56,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:57,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:33:57,011 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-13 17:33:57,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1386190996, now seen corresponding path program 1 times [2021-11-13 17:33:57,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:33:57,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163079901] [2021-11-13 17:33:57,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:57,013 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:33:57,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:33:57,014 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:33:57,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 17:33:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:57,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:33:57,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:57,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:57,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:33:57,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:57,558 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:33:57,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163079901] [2021-11-13 17:33:57,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163079901] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:33:57,558 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:33:57,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:33:57,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218225072] [2021-11-13 17:33:57,559 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:33:57,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:33:57,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:33:57,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:33:57,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:33:57,561 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:57,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:33:57,608 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2021-11-13 17:33:57,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:33:57,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-13 17:33:57,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:33:57,612 INFO L225 Difference]: With dead ends: 25 [2021-11-13 17:33:57,612 INFO L226 Difference]: Without dead ends: 23 [2021-11-13 17:33:57,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:33:57,614 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 42.88ms IncrementalHoareTripleChecker+Time [2021-11-13 17:33:57,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 28 Invalid, 22 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 9 Unchecked, 42.88ms Time] [2021-11-13 17:33:57,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-13 17:33:57,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-13 17:33:57,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.1) internal successors, (22), 22 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:57,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2021-11-13 17:33:57,623 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 12 [2021-11-13 17:33:57,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:33:57,624 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2021-11-13 17:33:57,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:57,624 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2021-11-13 17:33:57,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 17:33:57,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:33:57,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:33:57,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:57,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:33:57,827 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-13 17:33:57,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:57,828 INFO L85 PathProgramCache]: Analyzing trace with hash -689559826, now seen corresponding path program 1 times [2021-11-13 17:33:57,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:33:57,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286190407] [2021-11-13 17:33:57,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:57,829 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:33:57,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:33:57,830 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:33:57,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 17:33:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:57,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:33:57,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:58,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:33:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:58,316 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:33:58,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286190407] [2021-11-13 17:33:58,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286190407] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:33:58,316 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:33:58,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:33:58,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51736502] [2021-11-13 17:33:58,317 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:33:58,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:33:58,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:33:58,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:33:58,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:33:58,318 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:58,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:33:58,332 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-11-13 17:33:58,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:33:58,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-13 17:33:58,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:33:58,333 INFO L225 Difference]: With dead ends: 23 [2021-11-13 17:33:58,333 INFO L226 Difference]: Without dead ends: 21 [2021-11-13 17:33:58,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:33:58,335 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.57ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 11.48ms IncrementalHoareTripleChecker+Time [2021-11-13 17:33:58,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 27 Invalid, 18 Unknown, 0 Unchecked, 0.57ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 12 Unchecked, 11.48ms Time] [2021-11-13 17:33:58,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-13 17:33:58,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-13 17:33:58,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 20 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:58,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2021-11-13 17:33:58,339 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 14 [2021-11-13 17:33:58,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:33:58,339 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2021-11-13 17:33:58,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:58,339 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2021-11-13 17:33:58,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 17:33:58,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:33:58,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:33:58,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:58,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:33:58,541 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-13 17:33:58,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:58,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1241903344, now seen corresponding path program 1 times [2021-11-13 17:33:58,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:33:58,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621675342] [2021-11-13 17:33:58,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:58,542 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:33:58,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:33:58,543 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:33:58,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 17:33:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:58,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:33:58,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:58,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:58,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:33:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:58,942 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:33:58,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621675342] [2021-11-13 17:33:58,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621675342] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:33:58,942 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:33:58,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:33:58,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046056401] [2021-11-13 17:33:58,943 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:33:58,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:33:58,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:33:58,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:33:58,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:33:58,944 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:33:59,073 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2021-11-13 17:33:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:33:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-13 17:33:59,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:33:59,075 INFO L225 Difference]: With dead ends: 21 [2021-11-13 17:33:59,075 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 17:33:59,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:33:59,077 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.85ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.50ms IncrementalHoareTripleChecker+Time [2021-11-13 17:33:59,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 27 Unknown, 0 Unchecked, 0.85ms Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 93.50ms Time] [2021-11-13 17:33:59,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 17:33:59,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 17:33:59,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:59,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 17:33:59,079 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-11-13 17:33:59,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:33:59,079 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:33:59,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:59,079 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 17:33:59,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 17:33:59,083 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2021-11-13 17:33:59,087 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2021-11-13 17:33:59,087 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2021-11-13 17:33:59,087 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2021-11-13 17:33:59,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2021-11-13 17:33:59,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2021-11-13 17:33:59,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2021-11-13 17:33:59,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2021-11-13 17:33:59,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:59,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:33:59,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 17:33:59,298 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2021-11-13 17:33:59,298 INFO L858 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-11-13 17:33:59,298 INFO L858 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-11-13 17:33:59,298 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-11-13 17:33:59,299 INFO L858 garLoopResultBuilder]: For program point L27-3(line 27) no Hoare annotation was computed. [2021-11-13 17:33:59,299 INFO L858 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-11-13 17:33:59,299 INFO L858 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-11-13 17:33:59,299 INFO L858 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2021-11-13 17:33:59,299 INFO L858 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-11-13 17:33:59,300 INFO L858 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-11-13 17:33:59,300 INFO L858 garLoopResultBuilder]: For program point L36-3(line 36) no Hoare annotation was computed. [2021-11-13 17:33:59,300 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 17:33:59,300 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 27) no Hoare annotation was computed. [2021-11-13 17:33:59,300 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 17:33:59,301 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 17:33:59,301 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-11-13 17:33:59,301 INFO L858 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-11-13 17:33:59,301 INFO L858 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-11-13 17:33:59,302 INFO L858 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2021-11-13 17:33:59,302 INFO L858 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2021-11-13 17:33:59,302 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 17:33:59,302 INFO L858 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2021-11-13 17:33:59,302 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2021-11-13 17:33:59,303 INFO L858 garLoopResultBuilder]: For program point L33-3(line 33) no Hoare annotation was computed. [2021-11-13 17:33:59,303 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2021-11-13 17:33:59,303 INFO L858 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-11-13 17:33:59,303 INFO L858 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-11-13 17:33:59,303 INFO L858 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-11-13 17:33:59,304 INFO L854 garLoopResultBuilder]: At program point L38(lines 9 39) the Hoare annotation is: (= |ULTIMATE.start_main_~temp~0#1| (_ bv0 8)) [2021-11-13 17:33:59,304 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2021-11-13 17:33:59,304 INFO L858 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-11-13 17:33:59,304 INFO L858 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2021-11-13 17:33:59,305 INFO L858 garLoopResultBuilder]: For program point L30-3(line 30) no Hoare annotation was computed. [2021-11-13 17:33:59,305 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2021-11-13 17:33:59,305 INFO L858 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2021-11-13 17:33:59,305 INFO L858 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-11-13 17:33:59,305 INFO L858 garLoopResultBuilder]: For program point L18-3(line 18) no Hoare annotation was computed. [2021-11-13 17:33:59,311 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:33:59,313 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 17:33:59,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:33:59 BoogieIcfgContainer [2021-11-13 17:33:59,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 17:33:59,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 17:33:59,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 17:33:59,333 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 17:33:59,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:33:53" (3/4) ... [2021-11-13 17:33:59,338 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 17:33:59,354 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-13 17:33:59,355 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 17:33:59,356 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 17:33:59,356 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 17:33:59,397 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 17:33:59,398 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 17:33:59,398 INFO L158 Benchmark]: Toolchain (without parser) took 6856.77ms. Allocated memory was 54.5MB in the beginning and 81.8MB in the end (delta: 27.3MB). Free memory was 33.4MB in the beginning and 51.3MB in the end (delta: -17.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-11-13 17:33:59,399 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 36.3MB in the end (delta: 44.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:33:59,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.39ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 33.1MB in the beginning and 50.6MB in the end (delta: -17.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-11-13 17:33:59,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.67ms. Allocated memory is still 67.1MB. Free memory was 50.6MB in the beginning and 48.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:33:59,400 INFO L158 Benchmark]: Boogie Preprocessor took 65.12ms. Allocated memory is still 67.1MB. Free memory was 48.9MB in the beginning and 47.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:33:59,401 INFO L158 Benchmark]: RCFGBuilder took 518.73ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 37.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 17:33:59,401 INFO L158 Benchmark]: TraceAbstraction took 5619.09ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 37.1MB in the beginning and 54.1MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:33:59,402 INFO L158 Benchmark]: Witness Printer took 64.66ms. Allocated memory is still 81.8MB. Free memory was 54.1MB in the beginning and 51.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:33:59,405 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 54.5MB. Free memory was 36.3MB in the beginning and 36.3MB in the end (delta: 44.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.39ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 33.1MB in the beginning and 50.6MB in the end (delta: -17.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.67ms. Allocated memory is still 67.1MB. Free memory was 50.6MB in the beginning and 48.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.12ms. Allocated memory is still 67.1MB. Free memory was 48.9MB in the beginning and 47.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 518.73ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 37.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5619.09ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 37.1MB in the beginning and 54.1MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 64.66ms. Allocated memory is still 81.8MB. Free memory was 54.1MB in the beginning and 51.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 24]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 27]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 30]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 33]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 36]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 374.66ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 270 SdHoareTripleChecker+Invalid, 300.84ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 48 IncrementalHoareTripleChecker+Unchecked, 142 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 128 mSDtfsCounter, 91 mSolverCounterSat, 12.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 3 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 126 ConstructedInterpolants, 51 QuantifiedInterpolants, 893 SizeOfPredicates, 21 NumberOfNonLiveVariables, 238 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: temp == 0bv8 RESULT: Ultimate proved your program to be correct! [2021-11-13 17:33:59,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b08d242-9923-4199-bb70-e8d6f9e2977e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE