./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_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:31:49,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:31:49,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:31:49,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:31:49,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:31:49,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:31:49,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:31:49,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:31:49,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:31:49,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:31:49,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:31:49,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:31:49,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:31:49,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:31:49,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:31:49,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:31:49,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:31:49,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:31:49,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:31:49,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:31:49,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:31:49,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:31:49,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:31:49,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:31:49,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:31:49,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:31:49,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:31:49,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:31:49,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:31:49,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:31:49,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:31:49,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:31:49,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:31:49,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:31:49,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:31:49,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:31:49,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:31:49,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:31:49,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:31:49,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:31:49,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:31:49,757 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-13 01:31:49,809 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:31:49,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:31:49,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:31:49,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:31:49,812 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:31:49,812 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:31:49,813 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:31:49,813 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:31:49,813 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:31:49,813 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:31:49,814 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:31:49,815 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:31:49,815 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:31:49,815 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:31:49,816 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:31:49,816 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:31:49,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 01:31:49,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 01:31:49,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:31:49,818 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:31:49,818 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 01:31:49,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:31:49,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:31:49,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:31:49,819 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 01:31:49,820 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 01:31:49,821 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 01:31:49,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:31:49,822 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:31:49,822 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:31:49,822 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:31:49,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:31:49,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:31:49,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:31:49,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:31:49,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:31:49,824 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:31:49,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:31:49,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:31:49,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:31:49,825 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2021-11-13 01:31:50,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:31:50,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:31:50,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:31:50,210 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:31:50,212 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:31:50,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-11-13 01:31:50,314 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/data/7a05c96cb/82f151fb26ae41a081aa7e4838aef9b1/FLAG99df5513d [2021-11-13 01:31:50,849 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:31:50,849 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-11-13 01:31:50,875 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/data/7a05c96cb/82f151fb26ae41a081aa7e4838aef9b1/FLAG99df5513d [2021-11-13 01:31:51,155 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/data/7a05c96cb/82f151fb26ae41a081aa7e4838aef9b1 [2021-11-13 01:31:51,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:31:51,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:31:51,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:31:51,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:31:51,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:31:51,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:31:51" (1/1) ... [2021-11-13 01:31:51,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28feb2b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:51, skipping insertion in model container [2021-11-13 01:31:51,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:31:51" (1/1) ... [2021-11-13 01:31:51,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:31:51,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:31:51,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:31:51,564 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 01:31:51,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@8983f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:51, skipping insertion in model container [2021-11-13 01:31:51,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:31:51,565 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:31:51,568 INFO L158 Benchmark]: Toolchain (without parser) took 408.79ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 55.8MB in the beginning and 87.1MB in the end (delta: -31.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 01:31:51,569 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory was 64.6MB in the beginning and 64.5MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:31:51,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.03ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 55.7MB in the beginning and 87.1MB in the end (delta: -31.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 01:31:51,572 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory was 64.6MB in the beginning and 64.5MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.03ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 55.7MB in the beginning and 87.1MB in the end (delta: -31.4MB). 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_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:31:53,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:31:53,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:31:53,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:31:53,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:31:53,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:31:53,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:31:53,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:31:53,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:31:53,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:31:53,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:31:53,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:31:53,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:31:53,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:31:53,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:31:53,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:31:53,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:31:53,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:31:53,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:31:53,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:31:53,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:31:53,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:31:53,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:31:53,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:31:53,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:31:53,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:31:53,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:31:53,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:31:53,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:31:53,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:31:53,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:31:53,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:31:53,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:31:53,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:31:53,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:31:53,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:31:53,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:31:53,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:31:53,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:31:53,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:31:53,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:31:53,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-13 01:31:53,992 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:31:53,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:31:53,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:31:53,993 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:31:53,993 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:31:53,994 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:31:53,994 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:31:53,994 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:31:53,994 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:31:53,994 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:31:53,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 01:31:53,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 01:31:53,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:31:53,996 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:31:53,996 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 01:31:53,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:31:53,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:31:53,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:31:53,997 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 01:31:53,997 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 01:31:53,997 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 01:31:53,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:31:53,997 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:31:53,997 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:31:53,998 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:31:53,998 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:31:53,998 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:31:53,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:31:53,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:31:53,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:31:53,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:31:53,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:31:53,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:31:53,999 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:31:53,999 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:31:53,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:31:53,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:31:53,999 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_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2021-11-13 01:31:54,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:31:54,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:31:54,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:31:54,389 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:31:54,390 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:31:54,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-11-13 01:31:54,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/data/8fe16a369/1b69e8fe0ce344fca386ebe2fbc3cc4d/FLAG6e516a4fb [2021-11-13 01:31:55,155 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:31:55,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-11-13 01:31:55,180 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/data/8fe16a369/1b69e8fe0ce344fca386ebe2fbc3cc4d/FLAG6e516a4fb [2021-11-13 01:31:55,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/data/8fe16a369/1b69e8fe0ce344fca386ebe2fbc3cc4d [2021-11-13 01:31:55,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:31:55,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:31:55,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:31:55,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:31:55,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:31:55,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:31:55" (1/1) ... [2021-11-13 01:31:55,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16784644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:55, skipping insertion in model container [2021-11-13 01:31:55,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:31:55" (1/1) ... [2021-11-13 01:31:55,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:31:55,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:31:55,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:31:55,875 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:31:55,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:31:55,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:31:55,959 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:31:56,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:31:56,062 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:31:56,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:56 WrapperNode [2021-11-13 01:31:56,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:31:56,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:31:56,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:31:56,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:31:56,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:56" (1/1) ... [2021-11-13 01:31:56,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:56" (1/1) ... [2021-11-13 01:31:56,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:31:56,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:31:56,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:31:56,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:31:56,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:56" (1/1) ... [2021-11-13 01:31:56,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:56" (1/1) ... [2021-11-13 01:31:56,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:56" (1/1) ... [2021-11-13 01:31:56,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:56" (1/1) ... [2021-11-13 01:31:56,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:56" (1/1) ... [2021-11-13 01:31:56,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:56" (1/1) ... [2021-11-13 01:31:56,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:56" (1/1) ... [2021-11-13 01:31:56,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:31:56,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:31:56,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:31:56,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:31:56,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:56" (1/1) ... [2021-11-13 01:31:56,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:31:56,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:31:56,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:31:56,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:31:56,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:31:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:31:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:31:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:31:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:31:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:31:57,209 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:31:57,209 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-13 01:31:57,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:31:57 BoogieIcfgContainer [2021-11-13 01:31:57,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:31:57,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:31:57,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:31:57,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:31:57,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:31:55" (1/3) ... [2021-11-13 01:31:57,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41663e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:31:57, skipping insertion in model container [2021-11-13 01:31:57,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:56" (2/3) ... [2021-11-13 01:31:57,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41663e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:31:57, skipping insertion in model container [2021-11-13 01:31:57,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:31:57" (3/3) ... [2021-11-13 01:31:57,219 INFO L111 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2021-11-13 01:31:57,229 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:31:57,231 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-13 01:31:57,300 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:31:57,306 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 01:31:57,306 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-13 01:31:57,326 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 37 states have (on average 2.054054054054054) internal successors, (76), 64 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:57,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 01:31:57,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:57,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:57,334 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-11-13 01:31:57,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:57,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029096, now seen corresponding path program 1 times [2021-11-13 01:31:57,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:57,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379257875] [2021-11-13 01:31:57,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:57,363 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:57,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:57,367 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:57,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:31:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:57,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:31:57,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:57,662 INFO L354 Elim1Store]: treesize reduction 94, result has 19.7 percent of original size [2021-11-13 01:31:57,663 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 48 [2021-11-13 01:31:57,992 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 01:31:57,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:58,055 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 01:31:58,056 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:58,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379257875] [2021-11-13 01:31:58,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379257875] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:58,057 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:58,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-13 01:31:58,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563928497] [2021-11-13 01:31:58,061 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:58,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:31:58,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:58,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:31:58,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:31:58,103 INFO L87 Difference]: Start difference. First operand has 65 states, 37 states have (on average 2.054054054054054) internal successors, (76), 64 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:58,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:58,138 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2021-11-13 01:31:58,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:31:58,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-13 01:31:58,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:58,149 INFO L225 Difference]: With dead ends: 72 [2021-11-13 01:31:58,150 INFO L226 Difference]: Without dead ends: 70 [2021-11-13 01:31:58,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:31:58,154 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 5 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.44ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.68ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:58,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 143 Invalid, 33 Unknown, 0 Unchecked, 4.44ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 33 Unchecked, 0.68ms Time] [2021-11-13 01:31:58,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-13 01:31:58,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2021-11-13 01:31:58,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 38 states have (on average 1.9473684210526316) internal successors, (74), 64 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:58,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 74 transitions. [2021-11-13 01:31:58,188 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 74 transitions. Word has length 7 [2021-11-13 01:31:58,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:58,189 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 74 transitions. [2021-11-13 01:31:58,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:58,189 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 74 transitions. [2021-11-13 01:31:58,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 01:31:58,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:58,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:58,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:58,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:31:58,401 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-11-13 01:31:58,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:58,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029097, now seen corresponding path program 1 times [2021-11-13 01:31:58,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:58,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518032047] [2021-11-13 01:31:58,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:58,403 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:58,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:58,407 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:58,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:31:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:58,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 01:31:58,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:58,622 INFO L354 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2021-11-13 01:31:58,623 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 36 treesize of output 41 [2021-11-13 01:31:58,633 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 01:31:58,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 40 [2021-11-13 01:31:58,865 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 01:31:58,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:59,060 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 01:31:59,060 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 72 treesize of output 68 [2021-11-13 01:31:59,147 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 01:31:59,148 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:59,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518032047] [2021-11-13 01:31:59,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518032047] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:59,148 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:59,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-13 01:31:59,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368063358] [2021-11-13 01:31:59,149 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:59,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:31:59,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:59,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:31:59,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:31:59,152 INFO L87 Difference]: Start difference. First operand 65 states and 74 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:59,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:59,866 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2021-11-13 01:31:59,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:31:59,868 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-13 01:31:59,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:59,871 INFO L225 Difference]: With dead ends: 72 [2021-11-13 01:31:59,871 INFO L226 Difference]: Without dead ends: 72 [2021-11-13 01:31:59,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 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 01:31:59,873 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 7 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 551.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.47ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 589.75ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:59,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 281 Invalid, 58 Unknown, 0 Unchecked, 3.47ms Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 4 Unchecked, 589.75ms Time] [2021-11-13 01:31:59,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-13 01:31:59,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2021-11-13 01:31:59,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 42 states have (on average 1.9047619047619047) internal successors, (80), 68 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:59,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2021-11-13 01:31:59,889 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 7 [2021-11-13 01:31:59,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:59,890 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2021-11-13 01:31:59,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:59,890 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2021-11-13 01:31:59,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 01:31:59,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:59,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:59,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:32:00,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:32:00,092 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-11-13 01:32:00,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:32:00,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1806876139, now seen corresponding path program 1 times [2021-11-13 01:32:00,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:32:00,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255862893] [2021-11-13 01:32:00,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:32:00,093 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:32:00,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:32:00,095 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:32:00,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:32:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:32:00,172 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 01:32:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:32:00,241 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-13 01:32:00,242 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 01:32:00,243 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION (26 of 27 remaining) [2021-11-13 01:32:00,245 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (25 of 27 remaining) [2021-11-13 01:32:00,245 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (24 of 27 remaining) [2021-11-13 01:32:00,246 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (23 of 27 remaining) [2021-11-13 01:32:00,246 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (22 of 27 remaining) [2021-11-13 01:32:00,246 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (21 of 27 remaining) [2021-11-13 01:32:00,247 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (20 of 27 remaining) [2021-11-13 01:32:00,247 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (19 of 27 remaining) [2021-11-13 01:32:00,247 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (18 of 27 remaining) [2021-11-13 01:32:00,247 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (17 of 27 remaining) [2021-11-13 01:32:00,248 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION (16 of 27 remaining) [2021-11-13 01:32:00,248 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION (15 of 27 remaining) [2021-11-13 01:32:00,248 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION (14 of 27 remaining) [2021-11-13 01:32:00,248 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION (13 of 27 remaining) [2021-11-13 01:32:00,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION (12 of 27 remaining) [2021-11-13 01:32:00,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION (11 of 27 remaining) [2021-11-13 01:32:00,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION (10 of 27 remaining) [2021-11-13 01:32:00,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION (9 of 27 remaining) [2021-11-13 01:32:00,250 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION (8 of 27 remaining) [2021-11-13 01:32:00,250 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION (7 of 27 remaining) [2021-11-13 01:32:00,250 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION (6 of 27 remaining) [2021-11-13 01:32:00,250 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION (5 of 27 remaining) [2021-11-13 01:32:00,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION (4 of 27 remaining) [2021-11-13 01:32:00,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION (3 of 27 remaining) [2021-11-13 01:32:00,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION (2 of 27 remaining) [2021-11-13 01:32:00,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION (1 of 27 remaining) [2021-11-13 01:32:00,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK (0 of 27 remaining) [2021-11-13 01:32:00,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:32:00,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:32:00,465 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 01:32:00,469 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:32:00,484 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 01:32:00,491 INFO L158 Benchmark]: Toolchain (without parser) took 5069.54ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 43.8MB in the beginning and 59.7MB in the end (delta: -15.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2021-11-13 01:32:00,491 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 65.0MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:32:00,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.46ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 37.3MB in the end (delta: 6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:32:00,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.59ms. Allocated memory is still 65.0MB. Free memory was 37.3MB in the beginning and 35.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:32:00,497 INFO L158 Benchmark]: Boogie Preprocessor took 43.95ms. Allocated memory is still 65.0MB. Free memory was 35.1MB in the beginning and 33.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:32:00,497 INFO L158 Benchmark]: RCFGBuilder took 1019.36ms. Allocated memory is still 65.0MB. Free memory was 33.5MB in the beginning and 31.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-11-13 01:32:00,498 INFO L158 Benchmark]: TraceAbstraction took 3276.68ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 31.2MB in the beginning and 59.7MB in the end (delta: -28.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:32:00,500 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 65.0MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.46ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 37.3MB in the end (delta: 6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.59ms. Allocated memory is still 65.0MB. Free memory was 37.3MB in the beginning and 35.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.95ms. Allocated memory is still 65.0MB. Free memory was 35.1MB in the beginning and 33.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1019.36ms. Allocated memory is still 65.0MB. Free memory was 33.5MB in the beginning and 31.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3276.68ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 31.2MB in the beginning and 59.7MB in the end (delta: -28.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 01:32:00,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b522ca6e-45a4-46d7-a39b-0961c1097492/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null