./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:49:47,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:49:47,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:49:47,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:49:47,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:49:47,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:49:47,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:49:47,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:49:47,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:49:47,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:49:47,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:49:47,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:49:47,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:49:47,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:49:47,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:49:47,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:49:47,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:49:47,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:49:47,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:49:47,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:49:47,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:49:47,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:49:47,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:49:47,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:49:47,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:49:47,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:49:47,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:49:47,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:49:47,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:49:47,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:49:47,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:49:47,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:49:47,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:49:47,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:49:47,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:49:47,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:49:47,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:49:47,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:49:47,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:49:47,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:49:47,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:49:47,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-06 18:49:47,670 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:49:47,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:49:47,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:49:47,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:49:47,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:49:47,671 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:49:47,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:49:47,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:49:47,672 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:49:47,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:49:47,672 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:49:47,673 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:49:47,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:49:47,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:49:47,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:49:47,673 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 18:49:47,673 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 18:49:47,674 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 18:49:47,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:49:47,674 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 18:49:47,674 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:49:47,674 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:49:47,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:49:47,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:49:47,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:49:47,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:49:47,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:49:47,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:49:47,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:49:47,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:49:47,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:49:47,675 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf [2021-12-06 18:49:47,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:49:47,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:49:47,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:49:47,877 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:49:47,877 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:49:47,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-12-06 18:49:47,921 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/data/8670da2ec/d8dc830ab6704a41a8d8d1f8a646d8ff/FLAGa7d9cda13 [2021-12-06 18:49:48,350 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:49:48,350 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-12-06 18:49:48,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/data/8670da2ec/d8dc830ab6704a41a8d8d1f8a646d8ff/FLAGa7d9cda13 [2021-12-06 18:49:48,373 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/data/8670da2ec/d8dc830ab6704a41a8d8d1f8a646d8ff [2021-12-06 18:49:48,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:49:48,376 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:49:48,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:49:48,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:49:48,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:49:48,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:49:48" (1/1) ... [2021-12-06 18:49:48,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ce7a5ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:48, skipping insertion in model container [2021-12-06 18:49:48,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:49:48" (1/1) ... [2021-12-06 18:49:48,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:49:48,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:49:48,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:49:48,677 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) [2021-12-06 18:49:48,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b45d780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:48, skipping insertion in model container [2021-12-06 18:49:48,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:49:48,678 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-06 18:49:48,680 INFO L158 Benchmark]: Toolchain (without parser) took 303.46ms. Allocated memory is still 107.0MB. Free memory was 67.7MB in the beginning and 84.1MB in the end (delta: -16.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2021-12-06 18:49:48,681 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:49:48,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.14ms. Allocated memory is still 107.0MB. Free memory was 67.4MB in the beginning and 84.1MB in the end (delta: -16.7MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2021-12-06 18:49:48,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.14ms. Allocated memory is still 107.0MB. Free memory was 67.4MB in the beginning and 84.1MB in the end (delta: -16.7MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:49:50,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:49:50,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:49:50,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:49:50,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:49:50,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:49:50,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:49:50,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:49:50,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:49:50,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:49:50,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:49:50,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:49:50,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:49:50,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:49:50,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:49:50,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:49:50,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:49:50,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:49:50,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:49:50,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:49:50,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:49:50,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:49:50,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:49:50,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:49:50,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:49:50,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:49:50,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:49:50,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:49:50,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:49:50,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:49:50,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:49:50,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:49:50,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:49:50,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:49:50,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:49:50,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:49:50,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:49:50,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:49:50,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:49:50,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:49:50,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:49:50,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-06 18:49:50,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:49:50,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:49:50,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:49:50,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:49:50,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:49:50,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:49:50,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:49:50,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:49:50,154 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:49:50,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:49:50,155 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:49:50,155 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:49:50,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:49:50,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:49:50,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:49:50,155 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 18:49:50,155 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 18:49:50,156 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 18:49:50,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:49:50,156 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 18:49:50,156 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 18:49:50,156 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 18:49:50,156 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:49:50,156 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:49:50,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:49:50,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:49:50,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:49:50,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:49:50,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:49:50,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:49:50,157 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 18:49:50,157 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 18:49:50,158 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:49:50,158 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 18:49:50,158 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_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf [2021-12-06 18:49:50,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:49:50,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:49:50,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:49:50,419 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:49:50,419 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:49:50,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-12-06 18:49:50,462 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/data/813417092/e204c62744874ebc9c07bc7b17b18c9d/FLAG047487e8b [2021-12-06 18:49:50,892 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:49:50,892 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-12-06 18:49:50,905 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/data/813417092/e204c62744874ebc9c07bc7b17b18c9d/FLAG047487e8b [2021-12-06 18:49:50,914 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/data/813417092/e204c62744874ebc9c07bc7b17b18c9d [2021-12-06 18:49:50,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:49:50,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:49:50,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:49:50,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:49:50,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:49:50,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:49:50" (1/1) ... [2021-12-06 18:49:50,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264224fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:50, skipping insertion in model container [2021-12-06 18:49:50,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:49:50" (1/1) ... [2021-12-06 18:49:50,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:49:50,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:49:51,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:49:51,253 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 18:49:51,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:49:51,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:49:51,301 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:49:51,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:49:51,366 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:49:51,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:51 WrapperNode [2021-12-06 18:49:51,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:49:51,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:49:51,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:49:51,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:49:51,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:51" (1/1) ... [2021-12-06 18:49:51,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:51" (1/1) ... [2021-12-06 18:49:51,404 INFO L137 Inliner]: procedures = 167, calls = 71, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 23 [2021-12-06 18:49:51,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:49:51,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:49:51,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:49:51,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:49:51,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:51" (1/1) ... [2021-12-06 18:49:51,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:51" (1/1) ... [2021-12-06 18:49:51,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:51" (1/1) ... [2021-12-06 18:49:51,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:51" (1/1) ... [2021-12-06 18:49:51,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:51" (1/1) ... [2021-12-06 18:49:51,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:51" (1/1) ... [2021-12-06 18:49:51,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:51" (1/1) ... [2021-12-06 18:49:51,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:49:51,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:49:51,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:49:51,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:49:51,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:51" (1/1) ... [2021-12-06 18:49:51,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:49:51,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:49:51,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:49:51,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:49:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 18:49:51,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 18:49:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 18:49:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:49:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:49:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 18:49:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:49:51,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:49:51,569 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:49:51,571 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:49:51,644 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:49:51,649 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:49:51,649 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:49:51,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:49:51 BoogieIcfgContainer [2021-12-06 18:49:51,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:49:51,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:49:51,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:49:51,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:49:51,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:49:50" (1/3) ... [2021-12-06 18:49:51,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4e794b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:49:51, skipping insertion in model container [2021-12-06 18:49:51,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:51" (2/3) ... [2021-12-06 18:49:51,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4e794b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:49:51, skipping insertion in model container [2021-12-06 18:49:51,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:49:51" (3/3) ... [2021-12-06 18:49:51,656 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test8.i [2021-12-06 18:49:51,660 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:49:51,660 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-06 18:49:51,700 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:49:51,705 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 [2021-12-06 18:49:51,706 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-06 18:49:51,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:51,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 18:49:51,725 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:49:51,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:51,726 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:49:51,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:51,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1492643359, now seen corresponding path program 1 times [2021-12-06 18:49:51,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:49:51,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341236518] [2021-12-06 18:49:51,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:51,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:49:51,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:49:51,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:49:51,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 18:49:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:51,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:49:51,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:49:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:49:51,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:49:51,883 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:49:51,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341236518] [2021-12-06 18:49:51,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341236518] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:51,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:51,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:49:51,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096842115] [2021-12-06 18:49:51,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:51,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:49:51,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:49:51,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:49:51,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:49:51,915 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:51,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:49:51,963 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-12-06 18:49:51,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:49:51,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-12-06 18:49:51,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:49:51,970 INFO L225 Difference]: With dead ends: 21 [2021-12-06 18:49:51,970 INFO L226 Difference]: Without dead ends: 19 [2021-12-06 18:49:51,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:49:51,975 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 16 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:49:51,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:49:51,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-06 18:49:51,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-06 18:49:51,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:52,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-12-06 18:49:52,001 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2021-12-06 18:49:52,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:49:52,001 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-12-06 18:49:52,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:52,001 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-12-06 18:49:52,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 18:49:52,002 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:49:52,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:52,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 18:49:52,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:49:52,203 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:49:52,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:52,205 INFO L85 PathProgramCache]: Analyzing trace with hash -972696078, now seen corresponding path program 1 times [2021-12-06 18:49:52,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:49:52,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812909083] [2021-12-06 18:49:52,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:52,206 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:49:52,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:49:52,208 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:49:52,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 18:49:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:52,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 18:49:52,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:49:52,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:49:52,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:49:52,376 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:49:52,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812909083] [2021-12-06 18:49:52,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812909083] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:52,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:52,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:49:52,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303853618] [2021-12-06 18:49:52,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:52,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:49:52,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:49:52,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:49:52,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:49:52,379 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:52,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:49:52,427 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2021-12-06 18:49:52,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:49:52,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-12-06 18:49:52,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:49:52,428 INFO L225 Difference]: With dead ends: 29 [2021-12-06 18:49:52,429 INFO L226 Difference]: Without dead ends: 29 [2021-12-06 18:49:52,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:49:52,430 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 23 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:49:52,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 42 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:49:52,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-06 18:49:52,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2021-12-06 18:49:52,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 18:49:52,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-12-06 18:49:52,435 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 12 [2021-12-06 18:49:52,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:49:52,435 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-12-06 18:49:52,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:52,435 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-12-06 18:49:52,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 18:49:52,436 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:49:52,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:52,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 18:49:52,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:49:52,638 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:49:52,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:52,641 INFO L85 PathProgramCache]: Analyzing trace with hash 770114257, now seen corresponding path program 1 times [2021-12-06 18:49:52,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:49:52,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179350586] [2021-12-06 18:49:52,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:52,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:49:52,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:49:52,647 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:49:52,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 18:49:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:52,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 18:49:52,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:49:52,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:49:52,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:49:52,879 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:49:52,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179350586] [2021-12-06 18:49:52,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179350586] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:52,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:52,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:49:52,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111702423] [2021-12-06 18:49:52,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:52,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:49:52,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:49:52,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:49:52,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:49:52,881 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:52,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:49:52,916 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-12-06 18:49:52,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:49:52,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-12-06 18:49:52,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:49:52,917 INFO L225 Difference]: With dead ends: 24 [2021-12-06 18:49:52,917 INFO L226 Difference]: Without dead ends: 24 [2021-12-06 18:49:52,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:49:52,918 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 10 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:49:52,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 58 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:49:52,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-12-06 18:49:52,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-12-06 18:49:52,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 18:49:52,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2021-12-06 18:49:52,922 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 12 [2021-12-06 18:49:52,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:49:52,922 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2021-12-06 18:49:52,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:52,922 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2021-12-06 18:49:52,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 18:49:52,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:49:52,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:52,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-06 18:49:53,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:49:53,124 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:49:53,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:53,125 INFO L85 PathProgramCache]: Analyzing trace with hash -88807295, now seen corresponding path program 1 times [2021-12-06 18:49:53,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:49:53,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41795370] [2021-12-06 18:49:53,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:53,126 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:49:53,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:49:53,127 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:49:53,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 18:49:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:53,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 18:49:53,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:49:53,236 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 [2021-12-06 18:49:53,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:49:53,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:49:53,265 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:49:53,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41795370] [2021-12-06 18:49:53,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41795370] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:53,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:53,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:49:53,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422887559] [2021-12-06 18:49:53,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:53,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:49:53,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:49:53,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:49:53,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:49:53,267 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:53,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:49:53,293 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-12-06 18:49:53,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:49:53,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-12-06 18:49:53,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:49:53,294 INFO L225 Difference]: With dead ends: 22 [2021-12-06 18:49:53,294 INFO L226 Difference]: Without dead ends: 22 [2021-12-06 18:49:53,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:49:53,295 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:49:53,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:49:53,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-06 18:49:53,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-06 18:49:53,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 18:49:53,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-12-06 18:49:53,299 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2021-12-06 18:49:53,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:49:53,299 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-12-06 18:49:53,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:53,299 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-12-06 18:49:53,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 18:49:53,300 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:49:53,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:53,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 18:49:53,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:49:53,502 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:49:53,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1896015485, now seen corresponding path program 1 times [2021-12-06 18:49:53,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:49:53,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795736235] [2021-12-06 18:49:53,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:53,506 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:49:53,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:49:53,509 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:49:53,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 18:49:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:53,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:49:53,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:49:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:49:53,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:49:53,751 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:49:53,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795736235] [2021-12-06 18:49:53,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795736235] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:53,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:53,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:49:53,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328355749] [2021-12-06 18:49:53,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:53,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:49:53,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:49:53,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:49:53,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:49:53,754 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:53,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:49:53,778 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2021-12-06 18:49:53,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:49:53,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-12-06 18:49:53,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:49:53,779 INFO L225 Difference]: With dead ends: 25 [2021-12-06 18:49:53,779 INFO L226 Difference]: Without dead ends: 17 [2021-12-06 18:49:53,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:49:53,780 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:49:53,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:49:53,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-12-06 18:49:53,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-12-06 18:49:53,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:53,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2021-12-06 18:49:53,782 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 13 [2021-12-06 18:49:53,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:49:53,783 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2021-12-06 18:49:53,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:53,783 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2021-12-06 18:49:53,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-06 18:49:53,783 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:49:53,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:53,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 18:49:53,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:49:53,984 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:49:53,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:53,985 INFO L85 PathProgramCache]: Analyzing trace with hash 41783673, now seen corresponding path program 1 times [2021-12-06 18:49:53,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:49:53,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787213870] [2021-12-06 18:49:53,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:53,986 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:49:53,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:49:53,987 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:49:53,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 18:49:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:54,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 18:49:54,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:49:56,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:49:56,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:49:56,234 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:49:56,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787213870] [2021-12-06 18:49:56,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787213870] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:56,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:56,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:49:56,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580792018] [2021-12-06 18:49:56,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:56,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:49:56,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:49:56,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:49:56,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=41, Unknown=1, NotChecked=0, Total=56 [2021-12-06 18:49:56,235 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:56,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:49:56,245 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-12-06 18:49:56,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:49:56,245 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-12-06 18:49:56,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:49:56,246 INFO L225 Difference]: With dead ends: 16 [2021-12-06 18:49:56,246 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 18:49:56,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=14, Invalid=41, Unknown=1, NotChecked=0, Total=56 [2021-12-06 18:49:56,247 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:49:56,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 32 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2021-12-06 18:49:56,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 18:49:56,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 18:49:56,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:49:56,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 18:49:56,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-12-06 18:49:56,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:49:56,249 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:49:56,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:56,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 18:49:56,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 18:49:56,252 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (3 of 4 remaining) [2021-12-06 18:49:56,252 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2021-12-06 18:49:56,252 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2021-12-06 18:49:56,253 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2021-12-06 18:49:56,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 18:49:56,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:49:56,462 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-06 18:49:56,466 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:49:56,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:49:56 BoogieIcfgContainer [2021-12-06 18:49:56,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:49:56,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:49:56,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:49:56,476 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:49:56,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:49:51" (3/4) ... [2021-12-06 18:49:56,484 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 18:49:56,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2021-12-06 18:49:56,500 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-12-06 18:49:56,500 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-06 18:49:56,500 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 18:49:56,524 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 18:49:56,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:49:56,525 INFO L158 Benchmark]: Toolchain (without parser) took 5608.15ms. Allocated memory was 58.7MB in the beginning and 90.2MB in the end (delta: 31.5MB). Free memory was 34.8MB in the beginning and 49.1MB in the end (delta: -14.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2021-12-06 18:49:56,525 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 58.7MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:49:56,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.50ms. Allocated memory was 58.7MB in the beginning and 90.2MB in the end (delta: 31.5MB). Free memory was 34.7MB in the beginning and 55.0MB in the end (delta: -20.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2021-12-06 18:49:56,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.12ms. Allocated memory is still 90.2MB. Free memory was 55.0MB in the beginning and 52.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:49:56,526 INFO L158 Benchmark]: Boogie Preprocessor took 17.74ms. Allocated memory is still 90.2MB. Free memory was 52.8MB in the beginning and 51.9MB in the end (delta: 944.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:49:56,526 INFO L158 Benchmark]: RCFGBuilder took 226.90ms. Allocated memory is still 90.2MB. Free memory was 51.5MB in the beginning and 41.5MB in the end (delta: 10.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 18:49:56,526 INFO L158 Benchmark]: TraceAbstraction took 4822.52ms. Allocated memory is still 90.2MB. Free memory was 41.1MB in the beginning and 51.8MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:49:56,527 INFO L158 Benchmark]: Witness Printer took 49.23ms. Allocated memory is still 90.2MB. Free memory was 51.8MB in the beginning and 49.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 18:49:56,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 58.7MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.50ms. Allocated memory was 58.7MB in the beginning and 90.2MB in the end (delta: 31.5MB). Free memory was 34.7MB in the beginning and 55.0MB in the end (delta: -20.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.12ms. Allocated memory is still 90.2MB. Free memory was 55.0MB in the beginning and 52.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.74ms. Allocated memory is still 90.2MB. Free memory was 52.8MB in the beginning and 51.9MB in the end (delta: 944.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 226.90ms. Allocated memory is still 90.2MB. Free memory was 51.5MB in the beginning and 41.5MB in the end (delta: 10.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4822.52ms. Allocated memory is still 90.2MB. Free memory was 41.1MB in the beginning and 51.8MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.23ms. Allocated memory is still 90.2MB. Free memory was 51.8MB in the beginning and 49.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 769]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 262 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 18 IncrementalHoareTripleChecker+Unchecked, 166 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 96 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 71 ConstructedInterpolants, 11 QuantifiedInterpolants, 467 SizeOfPredicates, 1 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-06 18:49:56,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a696f13-ffde-4ca0-8617-7a8105e82350/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE