./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:32:10,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:32:10,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:32:10,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:32:10,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:32:10,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:32:10,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:32:10,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:32:10,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:32:10,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:32:10,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:32:10,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:32:10,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:32:10,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:32:10,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:32:10,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:32:10,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:32:10,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:32:10,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:32:10,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:32:10,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:32:10,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:32:10,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:32:10,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:32:10,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:32:10,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:32:10,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:32:10,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:32:10,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:32:10,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:32:10,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:32:10,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:32:10,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:32:10,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:32:10,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:32:10,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:32:10,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:32:10,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:32:10,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:32:10,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:32:10,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:32:10,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-12 22:32:10,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:32:10,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:32:10,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:32:10,380 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:32:10,380 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:32:10,380 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:32:10,380 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:32:10,380 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:32:10,381 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:32:10,381 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:32:10,382 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:32:10,382 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:32:10,383 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:32:10,383 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:32:10,383 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:32:10,383 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:32:10,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-12 22:32:10,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-12 22:32:10,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:32:10,385 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:32:10,386 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:32:10,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:32:10,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:32:10,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:32:10,386 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-12 22:32:10,387 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-12 22:32:10,389 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-12 22:32:10,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:32:10,389 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:32:10,389 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:32:10,390 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:32:10,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:32:10,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:32:10,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:32:10,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:32:10,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:32:10,391 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:32:10,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:32:10,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:32:10,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:32:10,392 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2021-11-12 22:32:10,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:32:10,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:32:10,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:32:10,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:32:10,682 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:32:10,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-11-12 22:32:10,769 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/data/c64b54d28/4a26db96cc764df8b7ce58882495eb6a/FLAG5d05a5c06 [2021-11-12 22:32:11,401 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:32:11,402 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-11-12 22:32:11,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/data/c64b54d28/4a26db96cc764df8b7ce58882495eb6a/FLAG5d05a5c06 [2021-11-12 22:32:11,645 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/data/c64b54d28/4a26db96cc764df8b7ce58882495eb6a [2021-11-12 22:32:11,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:32:11,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:32:11,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:32:11,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:32:11,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:32:11,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:32:11" (1/1) ... [2021-11-12 22:32:11,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b5a0d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:11, skipping insertion in model container [2021-11-12 22:32:11,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:32:11" (1/1) ... [2021-11-12 22:32:11,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:32:11,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:32:12,166 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_8f962209-f9ba-4106-9fee-74c167cd943e/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-11-12 22:32:12,199 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:32:12,200 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:32:12,202 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:32:12,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:32:12,260 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:32:12,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c34b15f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12, skipping insertion in model container [2021-11-12 22:32:12,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:32:12,261 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:32:12,264 INFO L158 Benchmark]: Toolchain (without parser) took 613.73ms. Allocated memory is still 96.5MB. Free memory was 62.4MB in the beginning and 66.5MB in the end (delta: -4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:32:12,265 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:32:12,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 610.59ms. Allocated memory is still 96.5MB. Free memory was 62.1MB in the beginning and 66.5MB in the end (delta: -4.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:32:12,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 610.59ms. Allocated memory is still 96.5MB. Free memory was 62.1MB in the beginning and 66.5MB in the end (delta: -4.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 860]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:32:14,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:32:14,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:32:14,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:32:14,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:32:14,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:32:14,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:32:14,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:32:14,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:32:14,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:32:14,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:32:14,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:32:14,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:32:14,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:32:14,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:32:14,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:32:14,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:32:14,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:32:14,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:32:14,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:32:14,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:32:14,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:32:14,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:32:14,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:32:14,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:32:14,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:32:14,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:32:14,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:32:14,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:32:14,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:32:14,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:32:14,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:32:14,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:32:14,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:32:14,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:32:14,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:32:14,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:32:14,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:32:14,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:32:14,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:32:14,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:32:14,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-12 22:32:14,740 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:32:14,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:32:14,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:32:14,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:32:14,742 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:32:14,742 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:32:14,743 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:32:14,743 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:32:14,743 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:32:14,743 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:32:14,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-12 22:32:14,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-12 22:32:14,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:32:14,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:32:14,747 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:32:14,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:32:14,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:32:14,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:32:14,747 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-12 22:32:14,748 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-12 22:32:14,748 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-12 22:32:14,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:32:14,748 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:32:14,749 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:32:14,749 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:32:14,749 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:32:14,749 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:32:14,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:32:14,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:32:14,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:32:14,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:32:14,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:32:14,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:32:14,751 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:32:14,751 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:32:14,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:32:14,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:32:14,752 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_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2021-11-12 22:32:15,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:32:15,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:32:15,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:32:15,203 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:32:15,204 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:32:15,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-11-12 22:32:15,279 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/data/4806543e0/b207ebad7e124e4c8cf459acc97dfb27/FLAGe4c147d16 [2021-11-12 22:32:15,936 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:32:15,936 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-11-12 22:32:15,951 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/data/4806543e0/b207ebad7e124e4c8cf459acc97dfb27/FLAGe4c147d16 [2021-11-12 22:32:16,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/data/4806543e0/b207ebad7e124e4c8cf459acc97dfb27 [2021-11-12 22:32:16,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:32:16,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:32:16,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:32:16,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:32:16,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:32:16,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:32:16" (1/1) ... [2021-11-12 22:32:16,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f66107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:16, skipping insertion in model container [2021-11-12 22:32:16,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:32:16" (1/1) ... [2021-11-12 22:32:16,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:32:16,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:32:16,777 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_8f962209-f9ba-4106-9fee-74c167cd943e/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-11-12 22:32:16,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:32:16,839 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:32:16,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:32:16,915 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_8f962209-f9ba-4106-9fee-74c167cd943e/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-11-12 22:32:16,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:32:16,986 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:32:17,028 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_8f962209-f9ba-4106-9fee-74c167cd943e/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-11-12 22:32:17,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:32:17,124 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:32:17,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:17 WrapperNode [2021-11-12 22:32:17,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:32:17,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:32:17,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:32:17,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:32:17,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:17" (1/1) ... [2021-11-12 22:32:17,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:17" (1/1) ... [2021-11-12 22:32:17,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:32:17,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:32:17,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:32:17,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:32:17,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:17" (1/1) ... [2021-11-12 22:32:17,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:17" (1/1) ... [2021-11-12 22:32:17,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:17" (1/1) ... [2021-11-12 22:32:17,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:17" (1/1) ... [2021-11-12 22:32:17,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:17" (1/1) ... [2021-11-12 22:32:17,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:17" (1/1) ... [2021-11-12 22:32:17,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:17" (1/1) ... [2021-11-12 22:32:17,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:32:17,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:32:17,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:32:17,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:32:17,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:17" (1/1) ... [2021-11-12 22:32:17,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:32:17,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:32:17,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:32:17,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:32:17,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:32:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:32:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:32:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-11-12 22:32:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-11-12 22:32:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:32:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:32:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:32:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:32:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-11-12 22:32:17,312 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-11-12 22:32:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-12 22:32:17,312 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-12 22:32:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:32:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:32:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-12 22:32:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-12 22:32:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:32:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:32:18,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:32:18,429 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2021-11-12 22:32:18,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:32:18 BoogieIcfgContainer [2021-11-12 22:32:18,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:32:18,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:32:18,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:32:18,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:32:18,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:32:16" (1/3) ... [2021-11-12 22:32:18,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e49b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:32:18, skipping insertion in model container [2021-11-12 22:32:18,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:17" (2/3) ... [2021-11-12 22:32:18,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e49b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:32:18, skipping insertion in model container [2021-11-12 22:32:18,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:32:18" (3/3) ... [2021-11-12 22:32:18,444 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2021-11-12 22:32:18,450 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:32:18,450 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-11-12 22:32:18,508 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:32:18,520 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-11-12 22:32:18,520 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-11-12 22:32:18,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 117 states have (on average 2.1623931623931623) internal successors, (253), 206 states have internal predecessors, (253), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 22:32:18,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:32:18,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:18,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:32:18,552 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:32:18,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:18,557 INFO L85 PathProgramCache]: Analyzing trace with hash 378924727, now seen corresponding path program 1 times [2021-11-12 22:32:18,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:18,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004021132] [2021-11-12 22:32:18,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:18,570 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:18,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:18,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:18,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:32:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:18,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:32:18,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:18,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:18,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:18,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:18,755 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:18,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004021132] [2021-11-12 22:32:18,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004021132] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:18,756 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:18,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:32:18,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995332329] [2021-11-12 22:32:18,767 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:18,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:32:18,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:18,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:32:18,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:32:18,800 INFO L87 Difference]: Start difference. First operand has 216 states, 117 states have (on average 2.1623931623931623) internal successors, (253), 206 states have internal predecessors, (253), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-12 22:32:18,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:18,845 INFO L93 Difference]: Finished difference Result 212 states and 234 transitions. [2021-11-12 22:32:18,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:32:18,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-11-12 22:32:18,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:18,858 INFO L225 Difference]: With dead ends: 212 [2021-11-12 22:32:18,858 INFO L226 Difference]: Without dead ends: 210 [2021-11-12 22:32:18,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:32:18,863 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:18,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 5.37ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:32:18,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-11-12 22:32:18,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-11-12 22:32:18,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 115 states have (on average 1.7826086956521738) internal successors, (205), 199 states have internal predecessors, (205), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-12 22:32:18,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 232 transitions. [2021-11-12 22:32:18,921 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 232 transitions. Word has length 5 [2021-11-12 22:32:18,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:18,922 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 232 transitions. [2021-11-12 22:32:18,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-12 22:32:18,930 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 232 transitions. [2021-11-12 22:32:18,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:32:18,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:18,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:32:18,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 22:32:19,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:19,143 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:32:19,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:19,144 INFO L85 PathProgramCache]: Analyzing trace with hash 378924789, now seen corresponding path program 1 times [2021-11-12 22:32:19,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:19,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502987856] [2021-11-12 22:32:19,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:19,149 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:19,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:19,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:19,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:32:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:19,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:32:19,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:19,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:32:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:19,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:19,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:19,341 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:19,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502987856] [2021-11-12 22:32:19,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1502987856] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:19,347 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:19,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:32:19,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69259965] [2021-11-12 22:32:19,349 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:19,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:32:19,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:19,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:32:19,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:32:19,356 INFO L87 Difference]: Start difference. First operand 210 states and 232 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-12 22:32:19,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:19,641 INFO L93 Difference]: Finished difference Result 229 states and 251 transitions. [2021-11-12 22:32:19,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:32:19,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-11-12 22:32:19,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:19,644 INFO L225 Difference]: With dead ends: 229 [2021-11-12 22:32:19,644 INFO L226 Difference]: Without dead ends: 229 [2021-11-12 22:32:19,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:32:19,645 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 69 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 204.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.14ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 257.64ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:19,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 314 Invalid, 90 Unknown, 0 Unchecked, 5.14ms Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 257.64ms Time] [2021-11-12 22:32:19,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-12 22:32:19,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 207. [2021-11-12 22:32:19,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 115 states have (on average 1.7565217391304349) internal successors, (202), 196 states have internal predecessors, (202), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-12 22:32:19,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 229 transitions. [2021-11-12 22:32:19,689 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 229 transitions. Word has length 5 [2021-11-12 22:32:19,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:19,690 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 229 transitions. [2021-11-12 22:32:19,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-12 22:32:19,691 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 229 transitions. [2021-11-12 22:32:19,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:32:19,691 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:19,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:32:19,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:19,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:19,902 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:32:19,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:19,903 INFO L85 PathProgramCache]: Analyzing trace with hash 378924790, now seen corresponding path program 1 times [2021-11-12 22:32:19,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:19,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756945730] [2021-11-12 22:32:19,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:19,904 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:19,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:19,905 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:19,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:32:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:19,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:32:19,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:20,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:32:20,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:20,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:20,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:20,123 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:20,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1756945730] [2021-11-12 22:32:20,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1756945730] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:20,123 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:20,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 22:32:20,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024859590] [2021-11-12 22:32:20,124 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:20,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:32:20,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:20,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:32:20,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:32:20,125 INFO L87 Difference]: Start difference. First operand 207 states and 229 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-11-12 22:32:20,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:20,689 INFO L93 Difference]: Finished difference Result 205 states and 227 transitions. [2021-11-12 22:32:20,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:32:20,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 5 [2021-11-12 22:32:20,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:20,692 INFO L225 Difference]: With dead ends: 205 [2021-11-12 22:32:20,692 INFO L226 Difference]: Without dead ends: 205 [2021-11-12 22:32:20,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:32:20,693 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 67 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 476.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.56ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 546.07ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:20,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 408 Invalid, 123 Unknown, 0 Unchecked, 4.56ms Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 546.07ms Time] [2021-11-12 22:32:20,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-12 22:32:20,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2021-11-12 22:32:20,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 115 states have (on average 1.7304347826086957) internal successors, (199), 193 states have internal predecessors, (199), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-12 22:32:20,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 226 transitions. [2021-11-12 22:32:20,712 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 226 transitions. Word has length 5 [2021-11-12 22:32:20,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:20,712 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 226 transitions. [2021-11-12 22:32:20,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-11-12 22:32:20,712 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 226 transitions. [2021-11-12 22:32:20,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 22:32:20,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:20,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:20,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:20,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:20,925 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:32:20,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:20,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1374843154, now seen corresponding path program 1 times [2021-11-12 22:32:20,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:20,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147920276] [2021-11-12 22:32:20,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:20,926 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:20,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:20,927 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:20,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:32:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:21,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:32:21,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:21,091 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-12 22:32:21,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-11-12 22:32:21,315 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-12 22:32:21,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 30 [2021-11-12 22:32:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:21,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:27,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:27,746 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:27,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147920276] [2021-11-12 22:32:27,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147920276] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:27,747 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:27,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-12 22:32:27,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123874219] [2021-11-12 22:32:27,747 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:27,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:32:27,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:27,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:32:27,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=49, Unknown=3, NotChecked=0, Total=72 [2021-11-12 22:32:27,749 INFO L87 Difference]: Start difference. First operand 204 states and 226 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:27,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:27,960 INFO L93 Difference]: Finished difference Result 210 states and 234 transitions. [2021-11-12 22:32:27,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:32:27,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-12 22:32:27,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:27,963 INFO L225 Difference]: With dead ends: 210 [2021-11-12 22:32:27,964 INFO L226 Difference]: Without dead ends: 210 [2021-11-12 22:32:27,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=20, Invalid=49, Unknown=3, NotChecked=0, Total=72 [2021-11-12 22:32:27,965 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 1 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.61ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 153 IncrementalHoareTripleChecker+Unchecked, 193.88ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:27,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 827 Invalid, 224 Unknown, 0 Unchecked, 4.61ms Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 153 Unchecked, 193.88ms Time] [2021-11-12 22:32:27,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-11-12 22:32:27,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-11-12 22:32:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 120 states have (on average 1.7083333333333333) internal successors, (205), 198 states have internal predecessors, (205), 22 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:32:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 234 transitions. [2021-11-12 22:32:27,977 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 234 transitions. Word has length 8 [2021-11-12 22:32:27,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:27,978 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 234 transitions. [2021-11-12 22:32:27,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 234 transitions. [2021-11-12 22:32:27,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 22:32:27,979 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:27,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:28,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-12 22:32:28,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:28,190 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:32:28,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:28,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1374843155, now seen corresponding path program 1 times [2021-11-12 22:32:28,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:28,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849213303] [2021-11-12 22:32:28,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:28,191 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:28,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:28,192 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:28,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:32:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:28,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:32:28,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:28,402 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-12 22:32:28,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 49 [2021-11-12 22:32:28,455 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-11-12 22:32:28,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 63 [2021-11-12 22:32:28,730 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-12 22:32:28,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 53 [2021-11-12 22:32:28,763 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-11-12 22:32:28,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 66 [2021-11-12 22:32:29,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:29,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:32,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:32,166 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:32,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849213303] [2021-11-12 22:32:32,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849213303] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:32,166 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:32,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-11-12 22:32:32,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955808161] [2021-11-12 22:32:32,167 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:32,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 22:32:32,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:32,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 22:32:32,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2021-11-12 22:32:32,168 INFO L87 Difference]: Start difference. First operand 210 states and 234 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:34,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:34,370 INFO L93 Difference]: Finished difference Result 316 states and 353 transitions. [2021-11-12 22:32:34,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:32:34,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-12 22:32:34,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:34,374 INFO L225 Difference]: With dead ends: 316 [2021-11-12 22:32:34,374 INFO L226 Difference]: Without dead ends: 316 [2021-11-12 22:32:34,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=29, Invalid=80, Unknown=1, NotChecked=0, Total=110 [2021-11-12 22:32:34,375 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 187 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1848.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.95ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 210 IncrementalHoareTripleChecker+Unchecked, 2096.87ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:34,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 1198 Invalid, 668 Unknown, 0 Unchecked, 9.95ms Time], IncrementalHoareTripleChecker [6 Valid, 452 Invalid, 0 Unknown, 210 Unchecked, 2096.87ms Time] [2021-11-12 22:32:34,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-11-12 22:32:34,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 267. [2021-11-12 22:32:34,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 178 states have (on average 1.7247191011235956) internal successors, (307), 254 states have internal predecessors, (307), 22 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:32:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 336 transitions. [2021-11-12 22:32:34,390 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 336 transitions. Word has length 8 [2021-11-12 22:32:34,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:34,390 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 336 transitions. [2021-11-12 22:32:34,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:34,391 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 336 transitions. [2021-11-12 22:32:34,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 22:32:34,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:34,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:34,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-12 22:32:34,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:34,606 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting list_addErr2REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:32:34,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:34,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1625645901, now seen corresponding path program 1 times [2021-11-12 22:32:34,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:34,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52755562] [2021-11-12 22:32:34,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:34,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:34,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:34,608 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:34,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:32:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:34,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-12 22:32:34,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:34,826 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-12 22:32:34,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-11-12 22:32:35,095 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-12 22:32:35,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-12 22:32:35,198 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-12 22:32:35,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 15 [2021-11-12 22:32:35,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2021-11-12 22:32:35,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:35,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:35,335 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-11-12 22:32:35,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-11-12 22:32:35,368 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:32:35,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-12 22:32:40,736 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_gl_insert_~node~1#1.base_20| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_20|))))))) (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_20| (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_20|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_1) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_3) (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.base|)))) is different from false [2021-11-12 22:32:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:40,777 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:40,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52755562] [2021-11-12 22:32:40,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52755562] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:40,778 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:40,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-12 22:32:40,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911678889] [2021-11-12 22:32:40,778 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:40,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 22:32:40,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:40,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 22:32:40,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=69, Unknown=2, NotChecked=16, Total=110 [2021-11-12 22:32:40,780 INFO L87 Difference]: Start difference. First operand 267 states and 336 transitions. Second operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:41,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:41,782 INFO L93 Difference]: Finished difference Result 280 states and 349 transitions. [2021-11-12 22:32:41,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 22:32:41,783 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-12 22:32:41,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:41,785 INFO L225 Difference]: With dead ends: 280 [2021-11-12 22:32:41,785 INFO L226 Difference]: Without dead ends: 280 [2021-11-12 22:32:41,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=66, Invalid=176, Unknown=2, NotChecked=28, Total=272 [2021-11-12 22:32:41,787 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 51 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 696.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.56ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 92 IncrementalHoareTripleChecker+Unchecked, 797.36ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:41,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 1354 Invalid, 449 Unknown, 0 Unchecked, 7.56ms Time], IncrementalHoareTripleChecker [10 Valid, 347 Invalid, 0 Unknown, 92 Unchecked, 797.36ms Time] [2021-11-12 22:32:41,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-11-12 22:32:41,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 269. [2021-11-12 22:32:41,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 180 states have (on average 1.7222222222222223) internal successors, (310), 256 states have internal predecessors, (310), 22 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:32:41,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 339 transitions. [2021-11-12 22:32:41,799 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 339 transitions. Word has length 10 [2021-11-12 22:32:41,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:41,800 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 339 transitions. [2021-11-12 22:32:41,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:41,800 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 339 transitions. [2021-11-12 22:32:41,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 22:32:41,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:41,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:41,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:42,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:42,012 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting list_addErr3REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:32:42,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:42,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1625645900, now seen corresponding path program 1 times [2021-11-12 22:32:42,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:42,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020350957] [2021-11-12 22:32:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:42,013 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:42,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:42,014 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:42,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:32:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:42,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-12 22:32:42,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:42,230 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-11-12 22:32:42,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-11-12 22:32:42,331 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-12 22:32:42,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-11-12 22:32:42,685 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-12 22:32:42,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 53 [2021-11-12 22:32:42,735 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-11-12 22:32:42,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 66 [2021-11-12 22:32:43,298 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-12 22:32:43,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 116 treesize of output 71 [2021-11-12 22:32:43,378 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-12 22:32:43,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 68 treesize of output 23 [2021-11-12 22:32:43,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-11-12 22:32:43,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-11-12 22:32:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:43,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:44,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:32:44,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-11-12 22:32:44,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:32:44,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-12 22:32:46,595 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|)) (.cse2 (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_9) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_11) (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3))))) is different from false [2021-11-12 22:32:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:51,820 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:51,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020350957] [2021-11-12 22:32:51,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020350957] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:51,820 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:51,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-11-12 22:32:51,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690222150] [2021-11-12 22:32:51,820 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:51,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-12 22:32:51,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:51,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-12 22:32:51,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=173, Unknown=3, NotChecked=26, Total=240 [2021-11-12 22:32:51,822 INFO L87 Difference]: Start difference. First operand 269 states and 339 transitions. Second operand has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:54,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:54,259 INFO L93 Difference]: Finished difference Result 269 states and 338 transitions. [2021-11-12 22:32:54,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:32:54,260 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-12 22:32:54,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:54,278 INFO L225 Difference]: With dead ends: 269 [2021-11-12 22:32:54,278 INFO L226 Difference]: Without dead ends: 269 [2021-11-12 22:32:54,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=53, Invalid=220, Unknown=3, NotChecked=30, Total=306 [2021-11-12 22:32:54,280 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1573.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.94ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 245 IncrementalHoareTripleChecker+Unchecked, 1779.81ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:54,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1414 Invalid, 588 Unknown, 0 Unchecked, 13.94ms Time], IncrementalHoareTripleChecker [7 Valid, 336 Invalid, 0 Unknown, 245 Unchecked, 1779.81ms Time] [2021-11-12 22:32:54,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-11-12 22:32:54,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2021-11-12 22:32:54,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 180 states have (on average 1.7166666666666666) internal successors, (309), 256 states have internal predecessors, (309), 22 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:32:54,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 338 transitions. [2021-11-12 22:32:54,294 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 338 transitions. Word has length 10 [2021-11-12 22:32:54,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:54,295 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 338 transitions. [2021-11-12 22:32:54,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:54,295 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 338 transitions. [2021-11-12 22:32:54,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 22:32:54,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:54,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:54,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:54,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:54,508 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting list_addErr4REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:32:54,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:54,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1144584946, now seen corresponding path program 1 times [2021-11-12 22:32:54,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:54,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488111034] [2021-11-12 22:32:54,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:54,509 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:54,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:54,510 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:54,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:32:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:54,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:32:54,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:54,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:32:54,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:54,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:54,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:54,714 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:54,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488111034] [2021-11-12 22:32:54,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488111034] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:54,714 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:54,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 22:32:54,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087332594] [2021-11-12 22:32:54,714 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:54,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:32:54,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:54,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:32:54,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:32:54,715 INFO L87 Difference]: Start difference. First operand 269 states and 338 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:55,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:55,471 INFO L93 Difference]: Finished difference Result 305 states and 373 transitions. [2021-11-12 22:32:55,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:32:55,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-12 22:32:55,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:55,474 INFO L225 Difference]: With dead ends: 305 [2021-11-12 22:32:55,474 INFO L226 Difference]: Without dead ends: 305 [2021-11-12 22:32:55,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:32:55,475 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 113 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 626.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.92ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 709.85ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:55,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 705 Invalid, 354 Unknown, 0 Unchecked, 3.92ms Time], IncrementalHoareTripleChecker [3 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 709.85ms Time] [2021-11-12 22:32:55,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-11-12 22:32:55,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 278. [2021-11-12 22:32:55,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 189 states have (on average 1.7195767195767195) internal successors, (325), 264 states have internal predecessors, (325), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:32:55,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 354 transitions. [2021-11-12 22:32:55,487 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 354 transitions. Word has length 11 [2021-11-12 22:32:55,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:55,487 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 354 transitions. [2021-11-12 22:32:55,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:55,488 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 354 transitions. [2021-11-12 22:32:55,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 22:32:55,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:55,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:55,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:55,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:55,698 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting list_addErr5REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:32:55,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:55,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1144584947, now seen corresponding path program 1 times [2021-11-12 22:32:55,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:55,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543953872] [2021-11-12 22:32:55,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:55,699 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:55,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:55,700 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:55,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:32:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:55,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 22:32:55,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:55,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:32:55,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:55,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:56,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:56,243 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:56,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543953872] [2021-11-12 22:32:56,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543953872] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:56,243 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:56,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-12 22:32:56,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851322277] [2021-11-12 22:32:56,243 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:56,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 22:32:56,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:56,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 22:32:56,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:32:56,244 INFO L87 Difference]: Start difference. First operand 278 states and 354 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:58,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:58,226 INFO L93 Difference]: Finished difference Result 284 states and 352 transitions. [2021-11-12 22:32:58,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:32:58,228 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-12 22:32:58,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:58,229 INFO L225 Difference]: With dead ends: 284 [2021-11-12 22:32:58,230 INFO L226 Difference]: Without dead ends: 284 [2021-11-12 22:32:58,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:32:58,231 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 108 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1713.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.37ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1914.63ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:58,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 1255 Invalid, 605 Unknown, 0 Unchecked, 5.37ms Time], IncrementalHoareTripleChecker [2 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 1914.63ms Time] [2021-11-12 22:32:58,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-11-12 22:32:58,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 278. [2021-11-12 22:32:58,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 189 states have (on average 1.708994708994709) internal successors, (323), 264 states have internal predecessors, (323), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:32:58,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 352 transitions. [2021-11-12 22:32:58,241 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 352 transitions. Word has length 11 [2021-11-12 22:32:58,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:58,241 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 352 transitions. [2021-11-12 22:32:58,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:58,242 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 352 transitions. [2021-11-12 22:32:58,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 22:32:58,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:58,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:58,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:58,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:58,455 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting list_addErr8REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:32:58,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:58,455 INFO L85 PathProgramCache]: Analyzing trace with hash 434515829, now seen corresponding path program 1 times [2021-11-12 22:32:58,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:58,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223715186] [2021-11-12 22:32:58,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:58,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:58,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:58,456 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:58,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:32:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:58,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:32:58,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:58,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:58,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:58,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:58,608 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:58,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223715186] [2021-11-12 22:32:58,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223715186] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:58,609 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:58,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:32:58,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144818050] [2021-11-12 22:32:58,609 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:58,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:32:58,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:58,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:32:58,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:32:58,610 INFO L87 Difference]: Start difference. First operand 278 states and 352 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:58,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:58,906 INFO L93 Difference]: Finished difference Result 277 states and 350 transitions. [2021-11-12 22:32:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:32:58,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-12 22:32:58,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:58,908 INFO L225 Difference]: With dead ends: 277 [2021-11-12 22:32:58,908 INFO L226 Difference]: Without dead ends: 277 [2021-11-12 22:32:58,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:32:58,909 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 22 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 237.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 274.04ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:58,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 504 Invalid, 135 Unknown, 0 Unchecked, 1.70ms Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 274.04ms Time] [2021-11-12 22:32:58,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-12 22:32:58,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-11-12 22:32:58,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 189 states have (on average 1.6984126984126984) internal successors, (321), 263 states have internal predecessors, (321), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:32:58,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 350 transitions. [2021-11-12 22:32:58,920 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 350 transitions. Word has length 13 [2021-11-12 22:32:58,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:58,920 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 350 transitions. [2021-11-12 22:32:58,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:58,920 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 350 transitions. [2021-11-12 22:32:58,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 22:32:58,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:58,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:58,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:59,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:59,132 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting list_addErr9REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:32:59,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:59,132 INFO L85 PathProgramCache]: Analyzing trace with hash 434515830, now seen corresponding path program 1 times [2021-11-12 22:32:59,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:59,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572411568] [2021-11-12 22:32:59,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:59,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:59,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:59,134 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:59,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 22:32:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:59,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:32:59,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:59,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:59,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:59,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-12 22:32:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:59,660 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:59,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572411568] [2021-11-12 22:32:59,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572411568] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:59,660 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:59,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2021-11-12 22:32:59,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268175863] [2021-11-12 22:32:59,660 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:59,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 22:32:59,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:59,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 22:32:59,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:32:59,662 INFO L87 Difference]: Start difference. First operand 277 states and 350 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:33:00,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:33:00,780 INFO L93 Difference]: Finished difference Result 280 states and 348 transitions. [2021-11-12 22:33:00,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 22:33:00,782 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-12 22:33:00,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:33:00,783 INFO L225 Difference]: With dead ends: 280 [2021-11-12 22:33:00,783 INFO L226 Difference]: Without dead ends: 280 [2021-11-12 22:33:00,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:33:00,784 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 294 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 785.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.99ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 878.69ms IncrementalHoareTripleChecker+Time [2021-11-12 22:33:00,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 1302 Invalid, 235 Unknown, 0 Unchecked, 3.99ms Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 878.69ms Time] [2021-11-12 22:33:00,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-11-12 22:33:00,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 276. [2021-11-12 22:33:00,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 189 states have (on average 1.687830687830688) internal successors, (319), 262 states have internal predecessors, (319), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:33:00,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 348 transitions. [2021-11-12 22:33:00,796 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 348 transitions. Word has length 13 [2021-11-12 22:33:00,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:33:00,796 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 348 transitions. [2021-11-12 22:33:00,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:33:00,796 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 348 transitions. [2021-11-12 22:33:00,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:33:00,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:33:00,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:33:00,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:33:01,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:33:01,009 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:33:01,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:33:01,009 INFO L85 PathProgramCache]: Analyzing trace with hash 853908818, now seen corresponding path program 1 times [2021-11-12 22:33:01,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:33:01,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272023687] [2021-11-12 22:33:01,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:33:01,010 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:33:01,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:33:01,011 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:33:01,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 22:33:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:33:01,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:33:01,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:33:01,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:01,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:33:01,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:01,297 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:33:01,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272023687] [2021-11-12 22:33:01,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272023687] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:33:01,297 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:33:01,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 5 [2021-11-12 22:33:01,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089903959] [2021-11-12 22:33:01,298 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:33:01,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:33:01,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:33:01,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:33:01,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:33:01,299 INFO L87 Difference]: Start difference. First operand 276 states and 348 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:33:01,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:33:01,573 INFO L93 Difference]: Finished difference Result 275 states and 345 transitions. [2021-11-12 22:33:01,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:33:01,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2021-11-12 22:33:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:33:01,576 INFO L225 Difference]: With dead ends: 275 [2021-11-12 22:33:01,576 INFO L226 Difference]: Without dead ends: 275 [2021-11-12 22:33:01,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:33:01,577 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 299 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 204.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.98ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 234.37ms IncrementalHoareTripleChecker+Time [2021-11-12 22:33:01,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 450 Invalid, 101 Unknown, 0 Unchecked, 3.98ms Time], IncrementalHoareTripleChecker [15 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 234.37ms Time] [2021-11-12 22:33:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-12 22:33:01,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2021-11-12 22:33:01,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 189 states have (on average 1.6772486772486772) internal successors, (317), 261 states have internal predecessors, (317), 21 states have call successors, (21), 7 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:33:01,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 345 transitions. [2021-11-12 22:33:01,587 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 345 transitions. Word has length 27 [2021-11-12 22:33:01,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:33:01,588 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 345 transitions. [2021-11-12 22:33:01,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:33:01,588 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 345 transitions. [2021-11-12 22:33:01,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:33:01,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:33:01,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:33:01,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:33:01,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:33:01,802 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting inspectErr0REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:33:01,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:33:01,802 INFO L85 PathProgramCache]: Analyzing trace with hash 853896473, now seen corresponding path program 1 times [2021-11-12 22:33:01,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:33:01,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321523880] [2021-11-12 22:33:01,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:33:01,803 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:33:01,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:33:01,804 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:33:01,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 22:33:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:33:01,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:33:01,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:33:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:02,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:33:02,251 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-12 22:33:02,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-12 22:33:02,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:02,271 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:33:02,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321523880] [2021-11-12 22:33:02,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321523880] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:33:02,272 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:33:02,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-12 22:33:02,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836523658] [2021-11-12 22:33:02,272 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:33:02,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:33:02,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:33:02,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:33:02,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:33:02,273 INFO L87 Difference]: Start difference. First operand 275 states and 345 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-12 22:33:03,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:33:03,139 INFO L93 Difference]: Finished difference Result 270 states and 332 transitions. [2021-11-12 22:33:03,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:33:03,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-12 22:33:03,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:33:03,142 INFO L225 Difference]: With dead ends: 270 [2021-11-12 22:33:03,142 INFO L226 Difference]: Without dead ends: 270 [2021-11-12 22:33:03,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:33:03,143 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 382 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 682.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.83ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 779.03ms IncrementalHoareTripleChecker+Time [2021-11-12 22:33:03,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [385 Valid, 421 Invalid, 462 Unknown, 0 Unchecked, 3.83ms Time], IncrementalHoareTripleChecker [29 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 779.03ms Time] [2021-11-12 22:33:03,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-11-12 22:33:03,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 269. [2021-11-12 22:33:03,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 190 states have (on average 1.6) internal successors, (304), 255 states have internal predecessors, (304), 21 states have call successors, (21), 7 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:33:03,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 332 transitions. [2021-11-12 22:33:03,152 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 332 transitions. Word has length 27 [2021-11-12 22:33:03,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:33:03,153 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 332 transitions. [2021-11-12 22:33:03,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-12 22:33:03,153 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 332 transitions. [2021-11-12 22:33:03,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:33:03,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:33:03,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:33:03,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-12 22:33:03,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:33:03,366 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting inspectErr1REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:33:03,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:33:03,367 INFO L85 PathProgramCache]: Analyzing trace with hash 853896474, now seen corresponding path program 1 times [2021-11-12 22:33:03,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:33:03,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771136107] [2021-11-12 22:33:03,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:33:03,367 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:33:03,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:33:03,370 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:33:03,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:33:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:33:03,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 22:33:03,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:33:03,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:03,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:33:04,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-12 22:33:04,484 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:33:04,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2021-11-12 22:33:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:04,711 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:33:04,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771136107] [2021-11-12 22:33:04,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771136107] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:33:04,711 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:33:04,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 13 [2021-11-12 22:33:04,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576741433] [2021-11-12 22:33:04,712 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:33:04,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 22:33:04,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:33:04,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 22:33:04,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:33:04,713 INFO L87 Difference]: Start difference. First operand 269 states and 332 transitions. Second operand has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:33:06,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:33:06,671 INFO L93 Difference]: Finished difference Result 267 states and 327 transitions. [2021-11-12 22:33:06,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 22:33:06,672 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2021-11-12 22:33:06,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:33:06,674 INFO L225 Difference]: With dead ends: 267 [2021-11-12 22:33:06,674 INFO L226 Difference]: Without dead ends: 267 [2021-11-12 22:33:06,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2021-11-12 22:33:06,675 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 749 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1497.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.54ms SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1694.88ms IncrementalHoareTripleChecker+Time [2021-11-12 22:33:06,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 550 Invalid, 675 Unknown, 0 Unchecked, 5.54ms Time], IncrementalHoareTripleChecker [76 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 1694.88ms Time] [2021-11-12 22:33:06,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-11-12 22:33:06,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 264. [2021-11-12 22:33:06,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 188 states have (on average 1.5797872340425532) internal successors, (297), 250 states have internal predecessors, (297), 21 states have call successors, (21), 7 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:33:06,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 325 transitions. [2021-11-12 22:33:06,684 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 325 transitions. Word has length 27 [2021-11-12 22:33:06,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:33:06,685 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 325 transitions. [2021-11-12 22:33:06,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:33:06,685 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 325 transitions. [2021-11-12 22:33:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:33:06,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:33:06,686 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:33:06,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:33:06,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:33:06,898 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting list_addErr1REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:33:06,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:33:06,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1393722671, now seen corresponding path program 1 times [2021-11-12 22:33:06,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:33:06,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784530558] [2021-11-12 22:33:06,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:33:06,899 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:33:06,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:33:06,900 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:33:06,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:33:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:33:07,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 22:33:07,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:33:07,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:33:07,714 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-12 22:33:07,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 45 [2021-11-12 22:33:07,726 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-12 22:33:07,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2021-11-12 22:33:07,956 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:07,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:33:10,838 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-12 22:33:10,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2021-11-12 22:33:10,981 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:33:10,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784530558] [2021-11-12 22:33:10,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|~#gl_list~0.base|] [2021-11-12 22:33:10,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [607979375] [2021-11-12 22:33:10,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:33:10,982 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:33:10,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:33:10,984 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:33:10,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-12 22:33:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:33:11,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-12 22:33:11,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:33:11,690 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-12 22:33:11,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 114 treesize of output 69 [2021-11-12 22:33:11,820 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-12 22:33:11,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 66 treesize of output 21 [2021-11-12 22:33:11,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-12 22:33:11,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-12 22:33:12,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-11-12 22:33:12,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-12 22:33:13,094 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-12 22:33:13,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-11-12 22:33:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:13,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:33:16,440 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:33:16,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 53 [2021-11-12 22:33:17,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_ULTIMATE.start_gl_insert_~node~1#1.base_29|] [2021-11-12 22:33:17,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444599235] [2021-11-12 22:33:17,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:33:17,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:33:17,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:33:17,138 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:33:17,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-12 22:33:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:33:17,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:33:17,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:33:17,815 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-12 22:33:17,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 22:33:17,825 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-12 22:33:17,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 32 [2021-11-12 22:33:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:17,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:33:20,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2021-11-12 22:33:20,546 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-12 22:33:20,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 51 [2021-11-12 22:33:21,042 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:33:21,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 54 [2021-11-12 22:33:21,062 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-12 22:33:21,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 53 [2021-11-12 22:33:21,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:21,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444599235] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:33:21,362 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:33:21,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 15 [2021-11-12 22:33:21,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263442558] [2021-11-12 22:33:21,362 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 22:33:21,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-12 22:33:21,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:33:21,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-12 22:33:21,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1144, Unknown=2, NotChecked=0, Total=1332 [2021-11-12 22:33:21,364 INFO L87 Difference]: Start difference. First operand 264 states and 325 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:33:23,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:33:23,502 INFO L93 Difference]: Finished difference Result 266 states and 324 transitions. [2021-11-12 22:33:23,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 22:33:23,504 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2021-11-12 22:33:23,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:33:23,505 INFO L225 Difference]: With dead ends: 266 [2021-11-12 22:33:23,505 INFO L226 Difference]: Without dead ends: 266 [2021-11-12 22:33:23,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 92 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=265, Invalid=1539, Unknown=2, NotChecked=0, Total=1806 [2021-11-12 22:33:23,507 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 266 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1310.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.88ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 369 IncrementalHoareTripleChecker+Unchecked, 1498.47ms IncrementalHoareTripleChecker+Time [2021-11-12 22:33:23,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 788 Invalid, 903 Unknown, 0 Unchecked, 4.88ms Time], IncrementalHoareTripleChecker [6 Valid, 528 Invalid, 0 Unknown, 369 Unchecked, 1498.47ms Time] [2021-11-12 22:33:23,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-12 22:33:23,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 264. [2021-11-12 22:33:23,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 188 states have (on average 1.574468085106383) internal successors, (296), 250 states have internal predecessors, (296), 21 states have call successors, (21), 7 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:33:23,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 324 transitions. [2021-11-12 22:33:23,516 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 324 transitions. Word has length 27 [2021-11-12 22:33:23,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:33:23,517 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 324 transitions. [2021-11-12 22:33:23,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:33:23,517 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 324 transitions. [2021-11-12 22:33:23,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 22:33:23,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:33:23,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:33:23,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2021-11-12 22:33:23,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 22:33:23,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-12 22:33:24,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:33:24,122 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:33:24,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:33:24,123 INFO L85 PathProgramCache]: Analyzing trace with hash -661448180, now seen corresponding path program 1 times [2021-11-12 22:33:24,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:33:24,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879559854] [2021-11-12 22:33:24,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:33:24,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:33:24,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:33:24,124 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:33:24,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-12 22:33:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:33:24,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-12 22:33:24,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:33:24,331 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-12 22:33:24,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-11-12 22:33:24,513 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-12 22:33:24,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-12 22:33:24,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:33:24,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-11-12 22:33:24,949 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:33:24,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-12 22:33:25,358 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:33:25,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 17 [2021-11-12 22:33:25,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:25,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:33:28,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 820 treesize of output 804 [2021-11-12 22:33:29,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:29,201 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:33:29,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879559854] [2021-11-12 22:33:29,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879559854] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:33:29,201 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:33:29,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 25 [2021-11-12 22:33:29,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247051370] [2021-11-12 22:33:29,202 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:33:29,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-12 22:33:29,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:33:29,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-12 22:33:29,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2021-11-12 22:33:29,204 INFO L87 Difference]: Start difference. First operand 264 states and 324 transitions. Second operand has 25 states, 25 states have (on average 2.04) internal successors, (51), 19 states have internal predecessors, (51), 5 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:34:20,961 WARN L227 SmtUtils]: Spent 50.15s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:34:20,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:34:20,962 INFO L93 Difference]: Finished difference Result 266 states and 323 transitions. [2021-11-12 22:34:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 22:34:20,963 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.04) internal successors, (51), 19 states have internal predecessors, (51), 5 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2021-11-12 22:34:20,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:34:20,965 INFO L225 Difference]: With dead ends: 266 [2021-11-12 22:34:20,965 INFO L226 Difference]: Without dead ends: 266 [2021-11-12 22:34:20,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 53.8s TimeCoverageRelationStatistics Valid=185, Invalid=937, Unknown=0, NotChecked=0, Total=1122 [2021-11-12 22:34:20,966 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 80 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 925.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.91ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 207 IncrementalHoareTripleChecker+Unchecked, 1058.70ms IncrementalHoareTripleChecker+Time [2021-11-12 22:34:20,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 2145 Invalid, 693 Unknown, 0 Unchecked, 5.91ms Time], IncrementalHoareTripleChecker [16 Valid, 470 Invalid, 0 Unknown, 207 Unchecked, 1058.70ms Time] [2021-11-12 22:34:20,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-12 22:34:20,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 264. [2021-11-12 22:34:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 188 states have (on average 1.5691489361702127) internal successors, (295), 250 states have internal predecessors, (295), 21 states have call successors, (21), 7 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:34:20,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 323 transitions. [2021-11-12 22:34:20,975 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 323 transitions. Word has length 30 [2021-11-12 22:34:20,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:34:20,976 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 323 transitions. [2021-11-12 22:34:20,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.04) internal successors, (51), 19 states have internal predecessors, (51), 5 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:34:20,976 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 323 transitions. [2021-11-12 22:34:20,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-12 22:34:20,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:34:20,978 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:34:21,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-11-12 22:34:21,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:34:21,193 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting list_addErr2REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-12 22:34:21,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:34:21,194 INFO L85 PathProgramCache]: Analyzing trace with hash -662300209, now seen corresponding path program 1 times [2021-11-12 22:34:21,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:34:21,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278525566] [2021-11-12 22:34:21,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:34:21,195 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:34:21,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:34:21,196 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:34:21,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 22:34:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:34:21,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-12 22:34:21,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:34:21,474 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-12 22:34:21,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-11-12 22:34:21,630 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-12 22:34:21,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-11-12 22:34:22,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:34:22,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-12 22:34:22,588 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-12 22:34:22,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 44 [2021-11-12 22:34:22,852 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-11-12 22:34:22,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 59 [2021-11-12 22:34:23,279 INFO L354 Elim1Store]: treesize reduction 809, result has 3.1 percent of original size [2021-11-12 22:34:23,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 125 treesize of output 65 [2021-11-12 22:34:23,718 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-12 22:34:23,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 67 [2021-11-12 22:34:23,987 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:34:23,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:34:24,224 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:34:24,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-12 22:34:30,006 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.base_33| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_33|))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_33| (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_33| (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_33|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_13) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_15) (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))))) is different from false [2021-11-12 22:34:32,145 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.base_33| (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.offset_32| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_33| (_ bv1 1)) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (bvadd (_ bv16 32) |c_ULTIMATE.start_gl_insert_~node~1#1.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_33| (store (store (store (store (select .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_33|) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_32| v_DerPreprocessor_13) (bvadd |v_ULTIMATE.start_gl_insert_~node~1#1.offset_32| (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_32|) v_DerPreprocessor_15) (bvadd (_ bv3 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_32|) v_DerPreprocessor_16))) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_33|))))))) is different from false [2021-11-12 22:34:34,201 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.base_33| (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.offset_32| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_33| (_ bv1 1)) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv12 32)) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (bvadd (_ bv16 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_33| (store (store (store (store (select .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_33|) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_32| v_DerPreprocessor_13) (bvadd |v_ULTIMATE.start_gl_insert_~node~1#1.offset_32| (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_32|) v_DerPreprocessor_15) (bvadd (_ bv3 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_32|) v_DerPreprocessor_16))) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_33|))))))) is different from false [2021-11-12 22:34:34,547 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:34:34,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278525566] [2021-11-12 22:34:34,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-12 22:34:34,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1210039862] [2021-11-12 22:34:34,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:34:34,548 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:34:34,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:34:34,555 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:34:34,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-12 22:34:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:34:34,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-12 22:34:34,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:34:34,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-12 22:34:34,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:34:35,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:34:36,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:34:36,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-12 22:34:36,265 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-12 22:34:36,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 43 [2021-11-12 22:34:36,601 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-12 22:34:36,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 36 [2021-11-12 22:34:37,106 INFO L354 Elim1Store]: treesize reduction 809, result has 3.1 percent of original size [2021-11-12 22:34:37,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 127 treesize of output 67 [2021-11-12 22:34:37,899 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-12 22:34:37,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 47 [2021-11-12 22:34:38,400 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:34:38,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:34:38,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:34:38,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-12 22:34:52,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-12 22:34:52,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642139149] [2021-11-12 22:34:52,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:34:52,196 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:34:52,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:34:52,210 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:34:52,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-12 22:34:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:34:52,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-12 22:34:52,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:34:52,458 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-12 22:34:52,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-11-12 22:34:52,615 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-12 22:34:52,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-12 22:34:53,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:34:53,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-12 22:34:54,027 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-12 22:34:54,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 44 [2021-11-12 22:34:54,194 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-11-12 22:34:54,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 64 [2021-11-12 22:34:54,563 INFO L354 Elim1Store]: treesize reduction 809, result has 3.1 percent of original size [2021-11-12 22:34:54,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 125 treesize of output 65 [2021-11-12 22:34:54,797 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-12 22:34:54,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 67 [2021-11-12 22:34:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:34:54,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:34:55,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:34:55,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-12 22:35:01,373 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.base_37| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_37|)))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_37| (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_37| (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_37|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_13) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_15) (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))) (_ bv1 1))))) is different from false [2021-11-12 22:35:03,512 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_gl_insert_~node~1#1.base_37| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.offset_38| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_37| (_ bv1 1)) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (bvadd (_ bv16 32) |c_ULTIMATE.start_gl_insert_~node~1#1.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_37| (store (store (store (store (select .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_37|) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_38| v_DerPreprocessor_13) (bvadd |v_ULTIMATE.start_gl_insert_~node~1#1.offset_38| (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_38|) v_DerPreprocessor_15) (bvadd (_ bv3 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_38|) v_DerPreprocessor_16))) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_37|)))))))) is different from false [2021-11-12 22:35:05,570 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.base_37| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.offset_38| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_37| (_ bv1 1)) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv12 32)) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (bvadd (_ bv16 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_37| (store (store (store (store (select .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_37|) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_38| v_DerPreprocessor_13) (bvadd |v_ULTIMATE.start_gl_insert_~node~1#1.offset_38| (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_38|) v_DerPreprocessor_15) (bvadd (_ bv3 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_38|) v_DerPreprocessor_16))) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_37|)))))))) is different from false [2021-11-12 22:35:05,846 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-12 22:35:05,846 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:35:05,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-12 22:35:05,846 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-12 22:35:05,847 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-12 22:35:05,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr2REQUIRES_VIOLATION (70 of 71 remaining) [2021-11-12 22:35:05,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr0REQUIRES_VIOLATION (69 of 71 remaining) [2021-11-12 22:35:05,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr1REQUIRES_VIOLATION (68 of 71 remaining) [2021-11-12 22:35:05,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location failErr0ASSERT_VIOLATIONMEMORY_LEAK (67 of 71 remaining) [2021-11-12 22:35:05,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr0REQUIRES_VIOLATION (66 of 71 remaining) [2021-11-12 22:35:05,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr1REQUIRES_VIOLATION (65 of 71 remaining) [2021-11-12 22:35:05,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr2REQUIRES_VIOLATION (64 of 71 remaining) [2021-11-12 22:35:05,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr3REQUIRES_VIOLATION (63 of 71 remaining) [2021-11-12 22:35:05,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr4REQUIRES_VIOLATION (62 of 71 remaining) [2021-11-12 22:35:05,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr5REQUIRES_VIOLATION (61 of 71 remaining) [2021-11-12 22:35:05,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr6REQUIRES_VIOLATION (60 of 71 remaining) [2021-11-12 22:35:05,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr7REQUIRES_VIOLATION (59 of 71 remaining) [2021-11-12 22:35:05,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr8REQUIRES_VIOLATION (58 of 71 remaining) [2021-11-12 22:35:05,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr9REQUIRES_VIOLATION (57 of 71 remaining) [2021-11-12 22:35:05,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr10REQUIRES_VIOLATION (56 of 71 remaining) [2021-11-12 22:35:05,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr11REQUIRES_VIOLATION (55 of 71 remaining) [2021-11-12 22:35:05,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr12REQUIRES_VIOLATION (54 of 71 remaining) [2021-11-12 22:35:05,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr13REQUIRES_VIOLATION (53 of 71 remaining) [2021-11-12 22:35:05,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr14REQUIRES_VIOLATION (52 of 71 remaining) [2021-11-12 22:35:05,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr15REQUIRES_VIOLATION (51 of 71 remaining) [2021-11-12 22:35:05,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr16REQUIRES_VIOLATION (50 of 71 remaining) [2021-11-12 22:35:05,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr17REQUIRES_VIOLATION (49 of 71 remaining) [2021-11-12 22:35:05,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr18REQUIRES_VIOLATION (48 of 71 remaining) [2021-11-12 22:35:05,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr19REQUIRES_VIOLATION (47 of 71 remaining) [2021-11-12 22:35:05,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr20REQUIRES_VIOLATION (46 of 71 remaining) [2021-11-12 22:35:05,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr21REQUIRES_VIOLATION (45 of 71 remaining) [2021-11-12 22:35:05,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr22REQUIRES_VIOLATION (44 of 71 remaining) [2021-11-12 22:35:05,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr23REQUIRES_VIOLATION (43 of 71 remaining) [2021-11-12 22:35:05,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr24REQUIRES_VIOLATION (42 of 71 remaining) [2021-11-12 22:35:05,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr25REQUIRES_VIOLATION (41 of 71 remaining) [2021-11-12 22:35:05,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr26REQUIRES_VIOLATION (40 of 71 remaining) [2021-11-12 22:35:05,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr27REQUIRES_VIOLATION (39 of 71 remaining) [2021-11-12 22:35:05,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr28REQUIRES_VIOLATION (38 of 71 remaining) [2021-11-12 22:35:05,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr29REQUIRES_VIOLATION (37 of 71 remaining) [2021-11-12 22:35:05,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr0REQUIRES_VIOLATION (36 of 71 remaining) [2021-11-12 22:35:05,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr1REQUIRES_VIOLATION (35 of 71 remaining) [2021-11-12 22:35:05,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr3REQUIRES_VIOLATION (34 of 71 remaining) [2021-11-12 22:35:05,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr4REQUIRES_VIOLATION (33 of 71 remaining) [2021-11-12 22:35:05,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr5REQUIRES_VIOLATION (32 of 71 remaining) [2021-11-12 22:35:05,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr6REQUIRES_VIOLATION (31 of 71 remaining) [2021-11-12 22:35:05,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr7REQUIRES_VIOLATION (30 of 71 remaining) [2021-11-12 22:35:05,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr8REQUIRES_VIOLATION (29 of 71 remaining) [2021-11-12 22:35:05,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr9REQUIRES_VIOLATION (28 of 71 remaining) [2021-11-12 22:35:05,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (27 of 71 remaining) [2021-11-12 22:35:05,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (26 of 71 remaining) [2021-11-12 22:35:05,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (25 of 71 remaining) [2021-11-12 22:35:05,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (24 of 71 remaining) [2021-11-12 22:35:05,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (23 of 71 remaining) [2021-11-12 22:35:05,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (22 of 71 remaining) [2021-11-12 22:35:05,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (21 of 71 remaining) [2021-11-12 22:35:05,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (20 of 71 remaining) [2021-11-12 22:35:05,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (19 of 71 remaining) [2021-11-12 22:35:05,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (18 of 71 remaining) [2021-11-12 22:35:05,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION (17 of 71 remaining) [2021-11-12 22:35:05,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION (16 of 71 remaining) [2021-11-12 22:35:05,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION (15 of 71 remaining) [2021-11-12 22:35:05,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION (14 of 71 remaining) [2021-11-12 22:35:05,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION (13 of 71 remaining) [2021-11-12 22:35:05,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION (12 of 71 remaining) [2021-11-12 22:35:05,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION (11 of 71 remaining) [2021-11-12 22:35:05,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION (10 of 71 remaining) [2021-11-12 22:35:05,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION (9 of 71 remaining) [2021-11-12 22:35:05,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION (8 of 71 remaining) [2021-11-12 22:35:05,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION (7 of 71 remaining) [2021-11-12 22:35:05,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION (6 of 71 remaining) [2021-11-12 22:35:05,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION (5 of 71 remaining) [2021-11-12 22:35:05,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION (4 of 71 remaining) [2021-11-12 22:35:05,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE (3 of 71 remaining) [2021-11-12 22:35:05,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE (2 of 71 remaining) [2021-11-12 22:35:05,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (1 of 71 remaining) [2021-11-12 22:35:05,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK (0 of 71 remaining) [2021-11-12 22:35:05,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-12 22:35:06,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2021-11-12 22:35:06,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-12 22:35:06,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:35:06,485 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:35:06,489 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:35:06,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:35:06 BoogieIcfgContainer [2021-11-12 22:35:06,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:35:06,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:35:06,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:35:06,501 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:35:06,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:32:18" (3/4) ... [2021-11-12 22:35:06,504 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-12 22:35:06,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:35:06,505 INFO L158 Benchmark]: Toolchain (without parser) took 170328.82ms. Allocated memory was 54.5MB in the beginning and 102.8MB in the end (delta: 48.2MB). Free memory was 29.5MB in the beginning and 33.3MB in the end (delta: -3.8MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2021-11-12 22:35:06,505 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 54.5MB. Free memory is still 35.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:35:06,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 946.51ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 29.3MB in the beginning and 48.2MB in the end (delta: -18.9MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-11-12 22:35:06,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.49ms. Allocated memory is still 73.4MB. Free memory was 47.9MB in the beginning and 45.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:35:06,506 INFO L158 Benchmark]: Boogie Preprocessor took 49.23ms. Allocated memory is still 73.4MB. Free memory was 45.6MB in the beginning and 42.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:35:06,506 INFO L158 Benchmark]: RCFGBuilder took 1197.65ms. Allocated memory is still 73.4MB. Free memory was 42.5MB in the beginning and 45.5MB in the end (delta: -3.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-12 22:35:06,507 INFO L158 Benchmark]: TraceAbstraction took 168067.44ms. Allocated memory was 73.4MB in the beginning and 102.8MB in the end (delta: 29.4MB). Free memory was 44.9MB in the beginning and 33.3MB in the end (delta: 11.6MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2021-11-12 22:35:06,507 INFO L158 Benchmark]: Witness Printer took 2.90ms. Allocated memory is still 102.8MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:35:06,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 54.5MB. Free memory is still 35.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 946.51ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 29.3MB in the beginning and 48.2MB in the end (delta: -18.9MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.49ms. Allocated memory is still 73.4MB. Free memory was 47.9MB in the beginning and 45.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.23ms. Allocated memory is still 73.4MB. Free memory was 45.6MB in the beginning and 42.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1197.65ms. Allocated memory is still 73.4MB. Free memory was 42.5MB in the beginning and 45.5MB in the end (delta: -3.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * TraceAbstraction took 168067.44ms. Allocated memory was 73.4MB in the beginning and 102.8MB in the end (delta: 29.4MB). Free memory was 44.9MB in the beginning and 33.3MB in the end (delta: 11.6MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. * Witness Printer took 2.90ms. Allocated memory is still 102.8MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L850] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L949] CALL gl_read() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new [L879] new->next = next [L880] new->prev = prev [L881] prev->next = new [L890] RET __list_add(new, head, head->next) [L903] RET list_add(&node->linkage, &gl_list) [L904] (&node->nested)->next = (&node->nested) [L904] (&node->nested)->prev = (&node->nested) [L909] RET gl_insert(__VERIFIER_nondet_int()) [L911] COND TRUE __VERIFIER_nondet_int() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 947]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 216 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 168.0s, OverallIterations: 17, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 68.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2728 SdHoareTripleChecker+Valid, 14714.29ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2692 mSDsluCounter, 13869 SdHoareTripleChecker+Invalid, 12942.64ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1276 IncrementalHoareTripleChecker+Unchecked, 10766 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4853 IncrementalHoareTripleChecker+Invalid, 6305 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 3103 mSDtfsCounter, 4853 mSolverCounterSat, 90.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 571 GetRequests, 367 SyntacticMatches, 13 SemanticMatches, 191 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 997 ImplicationChecksByTransitivity, 87.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=8, InterpolantAutomatonStates: 116, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 128 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 55.7s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 496 ConstructedInterpolants, 108 QuantifiedInterpolants, 7847 SizeOfPredicates, 157 NumberOfNonLiveVariables, 1765 ConjunctsInSsa, 202 ConjunctsInUnsatCore, 34 InterpolantComputations, 30 PerfectInterpolantSequences, 15/26 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 [2021-11-12 22:35:06,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f962209-f9ba-4106-9fee-74c167cd943e/bin/utaipan-vmNK8stdcF/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: UNKNOWN