./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y --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 e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:09:24,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:09:24,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:09:24,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:09:24,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:09:24,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:09:24,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:09:24,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:09:24,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:09:24,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:09:24,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:09:24,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:09:24,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:09:24,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:09:24,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:09:24,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:09:24,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:09:24,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:09:24,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:09:24,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:09:24,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:09:24,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:09:24,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:09:24,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:09:24,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:09:24,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:09:24,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:09:24,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:09:24,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:09:24,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:09:24,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:09:24,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:09:24,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:09:24,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:09:24,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:09:24,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:09:24,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:09:24,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:09:24,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:09:24,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:09:24,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:09:24,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-13 18:09:24,583 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:09:24,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:09:24,584 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:09:24,584 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:09:24,591 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:09:24,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:09:24,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:09:24,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:09:24,593 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:09:24,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:09:24,594 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:09:24,595 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:09:24,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:09:24,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:09:24,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:09:24,596 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 18:09:24,596 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 18:09:24,596 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 18:09:24,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:09:24,596 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 18:09:24,597 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:09:24,597 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:09:24,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:09:24,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:09:24,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:09:24,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:09:24,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:09:24,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:09:24,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:09:24,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:09:24,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:09:24,601 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_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2021-11-13 18:09:24,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:09:24,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:09:24,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:09:24,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:09:24,935 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:09:24,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-11-13 18:09:25,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/data/f8ff782ab/d6071dfe11f54d25b3e38f95e5ba5035/FLAG309a0a98e [2021-11-13 18:09:25,543 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:09:25,548 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-11-13 18:09:25,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/data/f8ff782ab/d6071dfe11f54d25b3e38f95e5ba5035/FLAG309a0a98e [2021-11-13 18:09:25,826 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/data/f8ff782ab/d6071dfe11f54d25b3e38f95e5ba5035 [2021-11-13 18:09:25,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:09:25,830 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 18:09:25,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:09:25,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:09:25,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:09:25,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:09:25" (1/1) ... [2021-11-13 18:09:25,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9a4a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:25, skipping insertion in model container [2021-11-13 18:09:25,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:09:25" (1/1) ... [2021-11-13 18:09:25,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:09:25,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:09:26,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:09:26,199 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-13 18:09:26,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@738548e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:26, skipping insertion in model container [2021-11-13 18:09:26,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:09:26,201 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-13 18:09:26,203 INFO L158 Benchmark]: Toolchain (without parser) took 371.63ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 52.2MB in the beginning and 86.3MB in the end (delta: -34.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 18:09:26,204 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 90.2MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:09:26,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.24ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 52.0MB in the beginning and 86.6MB in the end (delta: -34.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 18:09:26,207 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 90.2MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.24ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 52.0MB in the beginning and 86.6MB in the end (delta: -34.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 535]: 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_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y --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 e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:09:28,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:09:28,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:09:28,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:09:28,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:09:28,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:09:28,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:09:28,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:09:28,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:09:28,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:09:28,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:09:28,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:09:28,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:09:28,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:09:28,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:09:28,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:09:28,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:09:28,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:09:28,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:09:28,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:09:28,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:09:28,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:09:28,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:09:28,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:09:28,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:09:28,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:09:28,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:09:28,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:09:28,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:09:28,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:09:28,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:09:28,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:09:28,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:09:28,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:09:28,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:09:28,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:09:28,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:09:28,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:09:28,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:09:28,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:09:28,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:09:28,638 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-13 18:09:28,690 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:09:28,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:09:28,691 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:09:28,691 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:09:28,692 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:09:28,692 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:09:28,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:09:28,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:09:28,694 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:09:28,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:09:28,696 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:09:28,696 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:09:28,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:09:28,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:09:28,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:09:28,697 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 18:09:28,698 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 18:09:28,698 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 18:09:28,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:09:28,698 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 18:09:28,699 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 18:09:28,699 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 18:09:28,699 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:09:28,699 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:09:28,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:09:28,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:09:28,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:09:28,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:09:28,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:09:28,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:09:28,701 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 18:09:28,702 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 18:09:28,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:09:28,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 18:09:28,703 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_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2021-11-13 18:09:29,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:09:29,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:09:29,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:09:29,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:09:29,084 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:09:29,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-11-13 18:09:29,159 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/data/eca7bd045/2d71da94d9904831b8cdd05a2ad060ad/FLAG5b9301a6c [2021-11-13 18:09:29,859 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:09:29,859 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-11-13 18:09:29,884 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/data/eca7bd045/2d71da94d9904831b8cdd05a2ad060ad/FLAG5b9301a6c [2021-11-13 18:09:30,149 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/data/eca7bd045/2d71da94d9904831b8cdd05a2ad060ad [2021-11-13 18:09:30,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:09:30,154 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 18:09:30,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:09:30,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:09:30,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:09:30,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:09:30" (1/1) ... [2021-11-13 18:09:30,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec14154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:30, skipping insertion in model container [2021-11-13 18:09:30,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:09:30" (1/1) ... [2021-11-13 18:09:30,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:09:30,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:09:30,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:09:30,618 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 18:09:30,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:09:30,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:09:30,711 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:09:30,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:09:30,787 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:09:30,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:30 WrapperNode [2021-11-13 18:09:30,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:09:30,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:09:30,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:09:30,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:09:30,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:30" (1/1) ... [2021-11-13 18:09:30,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:30" (1/1) ... [2021-11-13 18:09:30,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:30" (1/1) ... [2021-11-13 18:09:30,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:30" (1/1) ... [2021-11-13 18:09:30,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:30" (1/1) ... [2021-11-13 18:09:30,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:30" (1/1) ... [2021-11-13 18:09:30,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:30" (1/1) ... [2021-11-13 18:09:30,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:09:30,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:09:30,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:09:30,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:09:30,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:30" (1/1) ... [2021-11-13 18:09:30,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:09:30,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:09:30,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:09:30,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:09:30,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-13 18:09:30,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:09:30,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-13 18:09:30,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-13 18:09:30,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-13 18:09:30,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-13 18:09:30,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-13 18:09:30,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-13 18:09:30,965 INFO L138 BoogieDeclarations]: Found implementation of procedure knapsack [2021-11-13 18:09:30,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-13 18:09:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-13 18:09:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-13 18:09:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-13 18:09:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-13 18:09:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-13 18:09:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-13 18:09:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-13 18:09:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-13 18:09:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-13 18:09:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-13 18:09:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-13 18:09:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-13 18:09:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-13 18:09:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-13 18:09:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-13 18:09:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-13 18:09:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-13 18:09:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-13 18:09:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-13 18:09:30,969 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-13 18:09:30,969 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-13 18:09:30,969 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-13 18:09:30,969 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-13 18:09:30,969 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-13 18:09:30,969 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-13 18:09:30,970 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-13 18:09:30,970 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-13 18:09:30,970 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-13 18:09:30,970 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-13 18:09:30,970 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-13 18:09:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-13 18:09:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-13 18:09:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-13 18:09:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-13 18:09:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-13 18:09:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-13 18:09:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-13 18:09:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-13 18:09:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-13 18:09:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-13 18:09:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-13 18:09:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-13 18:09:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-13 18:09:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-13 18:09:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-13 18:09:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-13 18:09:30,973 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-13 18:09:30,974 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-13 18:09:30,974 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-13 18:09:30,974 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-13 18:09:30,974 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-13 18:09:30,974 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-13 18:09:30,974 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-13 18:09:30,975 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-13 18:09:30,975 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-13 18:09:30,975 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-13 18:09:30,975 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-13 18:09:30,975 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-13 18:09:30,975 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-13 18:09:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-13 18:09:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-13 18:09:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-13 18:09:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-13 18:09:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-13 18:09:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-13 18:09:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-13 18:09:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-13 18:09:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-13 18:09:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-13 18:09:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-13 18:09:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-13 18:09:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-13 18:09:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-13 18:09:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-13 18:09:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-13 18:09:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-13 18:09:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-13 18:09:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-13 18:09:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-13 18:09:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-13 18:09:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-13 18:09:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-13 18:09:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-13 18:09:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-13 18:09:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-13 18:09:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-13 18:09:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-13 18:09:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-13 18:09:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-13 18:09:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-13 18:09:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-13 18:09:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-13 18:09:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-13 18:09:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-13 18:09:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-13 18:09:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-13 18:09:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-13 18:09:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-13 18:09:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-13 18:09:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-13 18:09:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-13 18:09:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-13 18:09:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-13 18:09:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-13 18:09:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-13 18:09:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-13 18:09:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-13 18:09:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-13 18:09:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure knapsack [2021-11-13 18:09:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 18:09:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 18:09:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-13 18:09:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:09:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:09:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-13 18:09:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:09:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-13 18:09:31,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:09:31,984 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-13 18:09:31,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:09:31 BoogieIcfgContainer [2021-11-13 18:09:31,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:09:31,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:09:31,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:09:31,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:09:31,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:09:30" (1/3) ... [2021-11-13 18:09:31,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0a4d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:09:31, skipping insertion in model container [2021-11-13 18:09:31,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:09:30" (2/3) ... [2021-11-13 18:09:31,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0a4d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:09:31, skipping insertion in model container [2021-11-13 18:09:31,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:09:31" (3/3) ... [2021-11-13 18:09:32,000 INFO L111 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2021-11-13 18:09:32,005 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:09:32,006 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-13 18:09:32,047 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:09:32,055 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:09:32,055 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-13 18:09:32,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 39 states have (on average 2.0) internal successors, (78), 66 states have internal predecessors, (78), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 18:09:32,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 18:09:32,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:09:32,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:09:32,081 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 22 more)] === [2021-11-13 18:09:32,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:09:32,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1775609137, now seen corresponding path program 1 times [2021-11-13 18:09:32,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:09:32,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947387708] [2021-11-13 18:09:32,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:09:32,119 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:09:32,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:09:32,124 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:09:32,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 18:09:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:09:32,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 18:09:32,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:09:32,549 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-11-13 18:09:32,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 50 [2021-11-13 18:09:32,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:09:32,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:09:32,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:09:32,919 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:09:32,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947387708] [2021-11-13 18:09:32,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947387708] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:09:32,921 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:09:32,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-13 18:09:32,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413766227] [2021-11-13 18:09:32,925 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:09:32,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:09:32,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:09:32,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:09:32,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:09:32,964 INFO L87 Difference]: Start difference. First operand has 73 states, 39 states have (on average 2.0) internal successors, (78), 66 states have internal predecessors, (78), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:09:33,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:09:33,179 INFO L93 Difference]: Finished difference Result 80 states and 92 transitions. [2021-11-13 18:09:33,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:09:33,183 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-13 18:09:33,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:09:33,194 INFO L225 Difference]: With dead ends: 80 [2021-11-13 18:09:33,194 INFO L226 Difference]: Without dead ends: 77 [2021-11-13 18:09:33,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:09:33,199 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 10 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 154.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 177.64ms IncrementalHoareTripleChecker+Time [2021-11-13 18:09:33,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 124 Invalid, 33 Unknown, 0 Unchecked, 3.76ms Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 6 Unchecked, 177.64ms Time] [2021-11-13 18:09:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-13 18:09:33,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 72. [2021-11-13 18:09:33,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 40 states have (on average 1.9) internal successors, (76), 66 states have internal predecessors, (76), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 18:09:33,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2021-11-13 18:09:33,244 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 11 [2021-11-13 18:09:33,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:09:33,245 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2021-11-13 18:09:33,245 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:09:33,245 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2021-11-13 18:09:33,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 18:09:33,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:09:33,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:09:33,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:09:33,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:09:33,450 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 22 more)] === [2021-11-13 18:09:33,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:09:33,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1775609136, now seen corresponding path program 1 times [2021-11-13 18:09:33,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:09:33,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140491105] [2021-11-13 18:09:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:09:33,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:09:33,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:09:33,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:09:33,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 18:09:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:09:33,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 18:09:33,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:09:33,765 INFO L354 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2021-11-13 18:09:33,766 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 3 case distinctions, treesize of input 38 treesize of output 43 [2021-11-13 18:09:33,784 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 18:09:33,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 42 [2021-11-13 18:09:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:09:34,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:09:34,223 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 18:09:34,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 70 [2021-11-13 18:09:34,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:09:34,334 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:09:34,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140491105] [2021-11-13 18:09:34,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140491105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:09:34,335 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:09:34,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-13 18:09:34,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061985949] [2021-11-13 18:09:34,336 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:09:34,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:09:34,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:09:34,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:09:34,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:09:34,338 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:09:35,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:09:35,005 INFO L93 Difference]: Finished difference Result 79 states and 91 transitions. [2021-11-13 18:09:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:09:35,007 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-13 18:09:35,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:09:35,009 INFO L225 Difference]: With dead ends: 79 [2021-11-13 18:09:35,009 INFO L226 Difference]: Without dead ends: 79 [2021-11-13 18:09:35,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:09:35,011 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 4 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 488.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.40ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 535.98ms IncrementalHoareTripleChecker+Time [2021-11-13 18:09:35,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 371 Invalid, 79 Unknown, 0 Unchecked, 4.40ms Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 32 Unchecked, 535.98ms Time] [2021-11-13 18:09:35,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-13 18:09:35,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2021-11-13 18:09:35,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 70 states have internal predecessors, (82), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 18:09:35,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2021-11-13 18:09:35,032 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 11 [2021-11-13 18:09:35,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:09:35,033 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2021-11-13 18:09:35,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:09:35,033 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2021-11-13 18:09:35,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 18:09:35,034 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:09:35,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:09:35,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:09:35,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:09:35,237 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 22 more)] === [2021-11-13 18:09:35,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:09:35,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1773762094, now seen corresponding path program 1 times [2021-11-13 18:09:35,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:09:35,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965962614] [2021-11-13 18:09:35,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:09:35,239 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:09:35,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:09:35,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:09:35,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 18:09:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:09:35,373 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:09:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:09:35,422 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-13 18:09:35,423 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 18:09:35,424 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr1REQUIRES_VIOLATION (26 of 27 remaining) [2021-11-13 18:09:35,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION (25 of 27 remaining) [2021-11-13 18:09:35,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION (24 of 27 remaining) [2021-11-13 18:09:35,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION (23 of 27 remaining) [2021-11-13 18:09:35,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION (22 of 27 remaining) [2021-11-13 18:09:35,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION (21 of 27 remaining) [2021-11-13 18:09:35,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6ENSURES_VIOLATIONMEMORY_LEAK (20 of 27 remaining) [2021-11-13 18:09:35,428 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr0REQUIRES_VIOLATION (19 of 27 remaining) [2021-11-13 18:09:35,428 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr1REQUIRES_VIOLATION (18 of 27 remaining) [2021-11-13 18:09:35,428 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr2REQUIRES_VIOLATION (17 of 27 remaining) [2021-11-13 18:09:35,428 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr3REQUIRES_VIOLATION (16 of 27 remaining) [2021-11-13 18:09:35,428 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr4REQUIRES_VIOLATION (15 of 27 remaining) [2021-11-13 18:09:35,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr5REQUIRES_VIOLATION (14 of 27 remaining) [2021-11-13 18:09:35,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr6REQUIRES_VIOLATION (13 of 27 remaining) [2021-11-13 18:09:35,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr7REQUIRES_VIOLATION (12 of 27 remaining) [2021-11-13 18:09:35,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr8REQUIRES_VIOLATION (11 of 27 remaining) [2021-11-13 18:09:35,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr9REQUIRES_VIOLATION (10 of 27 remaining) [2021-11-13 18:09:35,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr10REQUIRES_VIOLATION (9 of 27 remaining) [2021-11-13 18:09:35,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr11REQUIRES_VIOLATION (8 of 27 remaining) [2021-11-13 18:09:35,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr12REQUIRES_VIOLATION (7 of 27 remaining) [2021-11-13 18:09:35,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr13REQUIRES_VIOLATION (6 of 27 remaining) [2021-11-13 18:09:35,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr14REQUIRES_VIOLATION (5 of 27 remaining) [2021-11-13 18:09:35,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr15REQUIRES_VIOLATION (4 of 27 remaining) [2021-11-13 18:09:35,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr16REQUIRES_VIOLATION (3 of 27 remaining) [2021-11-13 18:09:35,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr17REQUIRES_VIOLATION (2 of 27 remaining) [2021-11-13 18:09:35,432 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr18REQUIRES_VIOLATION (1 of 27 remaining) [2021-11-13 18:09:35,432 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr19REQUIRES_VIOLATION (0 of 27 remaining) [2021-11-13 18:09:35,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:09:35,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:09:35,635 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 18:09:35,639 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:09:35,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:09:35 BoogieIcfgContainer [2021-11-13 18:09:35,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:09:35,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:09:35,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:09:35,671 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:09:35,671 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:09:31" (3/4) ... [2021-11-13 18:09:35,673 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-13 18:09:35,723 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:09:35,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:09:35,724 INFO L158 Benchmark]: Toolchain (without parser) took 5569.93ms. Allocated memory was 52.4MB in the beginning and 86.0MB in the end (delta: 33.6MB). Free memory was 28.1MB in the beginning and 37.7MB in the end (delta: -9.6MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2021-11-13 18:09:35,724 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 52.4MB. Free memory is still 32.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:09:35,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.49ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 27.9MB in the beginning and 44.0MB in the end (delta: -16.0MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2021-11-13 18:09:35,728 INFO L158 Benchmark]: Boogie Preprocessor took 76.54ms. Allocated memory is still 71.3MB. Free memory was 44.0MB in the beginning and 41.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:09:35,733 INFO L158 Benchmark]: RCFGBuilder took 1125.58ms. Allocated memory is still 71.3MB. Free memory was 40.8MB in the beginning and 32.8MB in the end (delta: 8.0MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2021-11-13 18:09:35,733 INFO L158 Benchmark]: TraceAbstraction took 3670.98ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 32.4MB in the beginning and 39.8MB in the end (delta: -7.4MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2021-11-13 18:09:35,734 INFO L158 Benchmark]: Witness Printer took 57.93ms. Allocated memory is still 86.0MB. Free memory was 39.8MB in the beginning and 37.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:09:35,737 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 52.4MB. Free memory is still 32.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 633.49ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 27.9MB in the beginning and 44.0MB in the end (delta: -16.0MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.54ms. Allocated memory is still 71.3MB. Free memory was 44.0MB in the beginning and 41.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1125.58ms. Allocated memory is still 71.3MB. Free memory was 40.8MB in the beginning and 32.8MB in the end (delta: 8.0MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3670.98ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 32.4MB in the beginning and 39.8MB in the end (delta: -7.4MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Witness Printer took 57.93ms. Allocated memory is still 86.0MB. Free memory was 39.8MB in the beginning and 37.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 542]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND FALSE !(N < 1) VAL [M=0, N=1073741824] [L532] COND TRUE M < 1 [L533] M = 1 VAL [M=1, N=1073741824] [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; VAL [__builtin_alloca (M * sizeof(int))={-2147483648:0}, __builtin_alloca (M * sizeof(int))={5:0}, __builtin_alloca (N * sizeof(int))={7:0}, __builtin_alloca (N * sizeof(int))={3:0}, best={5:0}, cost={-2147483648:0}, i=0, M=1, N=1073741824, size={3:0}, val={7:0}] [L540] COND TRUE i < N VAL [__builtin_alloca (M * sizeof(int))={-2147483648:0}, __builtin_alloca (M * sizeof(int))={5:0}, __builtin_alloca (N * sizeof(int))={7:0}, __builtin_alloca (N * sizeof(int))={3:0}, best={5:0}, cost={-2147483648:0}, i=0, M=1, N=1073741824, size={3:0}, val={7:0}] [L542] size[i] = __VERIFIER_nondet_int() - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 517]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 517]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 520]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 520]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 94 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 713.63ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 495 SdHoareTripleChecker+Invalid, 643.29ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 38 IncrementalHoareTripleChecker+Unchecked, 345 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 150 mSDtfsCounter, 73 mSolverCounterSat, 8.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 4 QuantifiedInterpolants, 266 SizeOfPredicates, 14 NumberOfNonLiveVariables, 120 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-13 18:09:35,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ddb256c-d6c2-45bb-812b-8962694ac440/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)