./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG --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 ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG --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 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:53:21,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:53:21,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:53:21,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:53:21,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:53:21,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:53:21,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:53:21,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:53:21,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:53:21,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:53:21,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:53:21,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:53:21,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:53:21,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:53:21,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:53:21,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:53:21,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:53:21,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:53:21,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:53:21,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:53:21,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:53:21,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:53:21,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:53:21,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:53:21,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:53:21,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:53:21,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:53:21,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:53:21,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:53:21,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:53:21,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:53:21,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:53:21,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:53:21,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:53:21,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:53:21,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:53:21,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:53:21,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:53:21,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:53:21,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:53:21,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:53:21,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 04:53:21,281 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:53:21,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:53:21,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:53:21,289 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:53:21,289 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:53:21,289 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:53:21,290 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:53:21,290 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:53:21,290 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:53:21,290 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:53:21,291 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:53:21,292 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:53:21,292 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:53:21,292 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:53:21,292 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:53:21,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:53:21,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:53:21,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:53:21,294 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:53:21,294 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:53:21,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:53:21,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:53:21,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:53:21,295 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:53:21,295 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:53:21,295 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:53:21,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:53:21,296 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:53:21,296 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:53:21,296 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:53:21,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:53:21,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:53:21,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:21,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:53:21,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:53:21,298 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:53:21,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:53:21,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:53:21,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:53:21,299 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_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2021-10-29 04:53:21,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:53:21,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:53:21,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:53:21,686 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:53:21,687 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:53:21,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-10-29 04:53:21,764 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/data/c03584122/41fc01a9b1824d3db719605d14170d61/FLAG5b2e7c9f3 [2021-10-29 04:53:22,410 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:53:22,411 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-10-29 04:53:22,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/data/c03584122/41fc01a9b1824d3db719605d14170d61/FLAG5b2e7c9f3 [2021-10-29 04:53:22,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/data/c03584122/41fc01a9b1824d3db719605d14170d61 [2021-10-29 04:53:22,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:53:22,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:53:22,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:22,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:53:22,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:53:22,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0d6e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:22, skipping insertion in model container [2021-10-29 04:53:22,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:22" (1/1) ... [2021-10-29 04:53:22,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:53:22,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:53:23,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:23,182 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) [2021-10-29 04:53:23,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4991d846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:23, skipping insertion in model container [2021-10-29 04:53:23,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:23,183 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 04:53:23,185 INFO L168 Benchmark]: Toolchain (without parser) took 408.07 ms. Allocated memory is still 113.2 MB. Free memory was 69.2 MB in the beginning and 84.6 MB in the end (delta: -15.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:23,186 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 113.2 MB. Free memory was 87.6 MB in the beginning and 87.6 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:53:23,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.64 ms. Allocated memory is still 113.2 MB. Free memory was 69.0 MB in the beginning and 84.6 MB in the end (delta: -15.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:23,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 113.2 MB. Free memory was 87.6 MB in the beginning and 87.6 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 386.64 ms. Allocated memory is still 113.2 MB. Free memory was 69.0 MB in the beginning and 84.6 MB in the end (delta: -15.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:53:25,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:53:25,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:53:25,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:53:25,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:53:25,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:53:25,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:53:25,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:53:25,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:53:25,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:53:25,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:53:25,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:53:25,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:53:25,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:53:25,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:53:25,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:53:25,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:53:25,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:53:25,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:53:25,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:53:25,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:53:25,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:53:25,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:53:25,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:53:25,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:53:25,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:53:25,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:53:25,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:53:25,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:53:25,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:53:25,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:53:25,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:53:25,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:53:25,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:53:25,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:53:25,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:53:25,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:53:25,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:53:25,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:53:25,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:53:25,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:53:25,587 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-29 04:53:25,614 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:53:25,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:53:25,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:53:25,616 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:53:25,616 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:53:25,617 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:53:25,617 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:53:25,617 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:53:25,617 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:53:25,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:53:25,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:53:25,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:53:25,619 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:53:25,620 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:53:25,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:53:25,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:53:25,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:53:25,621 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:53:25,621 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:53:25,622 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:53:25,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:53:25,622 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:53:25,622 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:53:25,623 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:53:25,623 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:53:25,623 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:53:25,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:53:25,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:53:25,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:53:25,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:25,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:53:25,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:53:25,625 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:53:25,625 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:53:25,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:53:25,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:53:25,626 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_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2021-10-29 04:53:26,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:53:26,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:53:26,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:53:26,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:53:26,060 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:53:26,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-10-29 04:53:26,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/data/03bc0ea8d/6c68fbe882c0450381617a4ba7a271aa/FLAGdd07e0d02 [2021-10-29 04:53:26,797 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:53:26,798 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-10-29 04:53:26,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/data/03bc0ea8d/6c68fbe882c0450381617a4ba7a271aa/FLAGdd07e0d02 [2021-10-29 04:53:27,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/data/03bc0ea8d/6c68fbe882c0450381617a4ba7a271aa [2021-10-29 04:53:27,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:53:27,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:53:27,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:27,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:53:27,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:53:27,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:27,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5343856d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27, skipping insertion in model container [2021-10-29 04:53:27,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:27,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:53:27,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:53:27,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:27,550 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:53:27,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:53:27,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:27,672 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:53:27,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:27,787 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:53:27,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27 WrapperNode [2021-10-29 04:53:27,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:27,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:53:27,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:53:27,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:53:27,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:27,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:27,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:53:27,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:53:27,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:53:27,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:53:27,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:27,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:27,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:27,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:27,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:27,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:27,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:27,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:53:27,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:53:27,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:53:27,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:53:27,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:27,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:27,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:53:27,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:53:27,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:53:28,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 04:53:28,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:53:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:53:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 04:53:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:53:28,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:53:29,030 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:53:29,032 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-29 04:53:29,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:29 BoogieIcfgContainer [2021-10-29 04:53:29,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:53:29,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:53:29,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:53:29,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:53:29,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:53:27" (1/3) ... [2021-10-29 04:53:29,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359e0898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:53:29, skipping insertion in model container [2021-10-29 04:53:29,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (2/3) ... [2021-10-29 04:53:29,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359e0898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:53:29, skipping insertion in model container [2021-10-29 04:53:29,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:29" (3/3) ... [2021-10-29 04:53:29,045 INFO L111 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2021-10-29 04:53:29,051 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:53:29,051 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-10-29 04:53:29,098 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:53:29,106 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 [2021-10-29 04:53:29,107 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-10-29 04:53:29,123 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) [2021-10-29 04:53:29,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:53:29,137 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:29,138 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:29,138 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-29 04:53:29,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:29,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029096, now seen corresponding path program 1 times [2021-10-29 04:53:29,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:29,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831905060] [2021-10-29 04:53:29,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:29,158 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:29,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:29,160 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:29,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:53:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:29,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:53:29,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:29,537 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-10-29 04:53:29,538 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 42 treesize of output 52 [2021-10-29 04:53:29,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:29,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:29,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:29,837 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:29,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831905060] [2021-10-29 04:53:29,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831905060] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:29,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:29,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:53:29,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281209504] [2021-10-29 04:53:29,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:53:29,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:29,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:53:29,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:53:29,859 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) [2021-10-29 04:53:30,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:30,173 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2021-10-29 04:53:30,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:53:30,175 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 [2021-10-29 04:53:30,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:30,184 INFO L225 Difference]: With dead ends: 64 [2021-10-29 04:53:30,184 INFO L226 Difference]: Without dead ends: 62 [2021-10-29 04:53:30,185 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:53:30,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-29 04:53:30,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-10-29 04:53:30,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 61 states have internal predecessors, (69), 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) [2021-10-29 04:53:30,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2021-10-29 04:53:30,229 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 7 [2021-10-29 04:53:30,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:30,229 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2021-10-29 04:53:30,229 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) [2021-10-29 04:53:30,230 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2021-10-29 04:53:30,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:53:30,230 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:30,231 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:30,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:30,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:30,443 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-29 04:53:30,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:30,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029097, now seen corresponding path program 1 times [2021-10-29 04:53:30,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:30,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112462872] [2021-10-29 04:53:30,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:30,445 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:30,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:30,450 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:30,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:53:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:30,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 04:53:30,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:30,740 INFO L354 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2021-10-29 04:53:30,741 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 [2021-10-29 04:53:30,761 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 04:53:30,762 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 [2021-10-29 04:53:31,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:31,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:31,271 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 04:53:31,272 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 [2021-10-29 04:53:31,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:31,374 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:31,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112462872] [2021-10-29 04:53:31,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112462872] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:31,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:31,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-29 04:53:31,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83989483] [2021-10-29 04:53:31,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:53:31,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:31,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:53:31,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:53:31,377 INFO L87 Difference]: Start difference. First operand 62 states and 69 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) [2021-10-29 04:53:33,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:33,343 INFO L93 Difference]: Finished difference Result 237 states and 260 transitions. [2021-10-29 04:53:33,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:53:33,346 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 [2021-10-29 04:53:33,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:33,349 INFO L225 Difference]: With dead ends: 237 [2021-10-29 04:53:33,349 INFO L226 Difference]: Without dead ends: 237 [2021-10-29 04:53:33,350 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-29 04:53:33,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-10-29 04:53:33,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 68. [2021-10-29 04:53:33,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 42 states have (on average 1.8333333333333333) internal successors, (77), 67 states have internal predecessors, (77), 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) [2021-10-29 04:53:33,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2021-10-29 04:53:33,366 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 7 [2021-10-29 04:53:33,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:33,367 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2021-10-29 04:53:33,367 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) [2021-10-29 04:53:33,367 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2021-10-29 04:53:33,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:53:33,368 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:33,368 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:33,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-29 04:53:33,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:33,580 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-29 04:53:33,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:33,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1806876139, now seen corresponding path program 1 times [2021-10-29 04:53:33,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:33,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167028430] [2021-10-29 04:53:33,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:33,581 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:33,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:33,583 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:33,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:53:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:53:33,646 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:53:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:53:33,704 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 04:53:33,705 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:53:33,706 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-29 04:53:33,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-29 04:53:33,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-29 04:53:33,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-29 04:53:33,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-29 04:53:33,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-29 04:53:33,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-29 04:53:33,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-29 04:53:33,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-29 04:53:33,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-29 04:53:33,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-29 04:53:33,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-29 04:53:33,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-29 04:53:33,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-29 04:53:33,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-29 04:53:33,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-29 04:53:33,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-29 04:53:33,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-29 04:53:33,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-29 04:53:33,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-29 04:53:33,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-29 04:53:33,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-29 04:53:33,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-10-29 04:53:33,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-10-29 04:53:33,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-10-29 04:53:33,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-10-29 04:53:33,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:53:33,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-29 04:53:33,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:33,924 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-29 04:53:33,928 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:53:33,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:53:33 BoogieIcfgContainer [2021-10-29 04:53:33,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:53:33,945 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:53:33,948 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:53:33,949 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:53:33,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:29" (3/4) ... [2021-10-29 04:53:33,952 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:53:34,019 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:53:34,026 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:53:34,028 INFO L168 Benchmark]: Toolchain (without parser) took 6931.91 ms. Allocated memory was 50.3 MB in the beginning and 81.8 MB in the end (delta: 31.5 MB). Free memory was 26.7 MB in the beginning and 56.9 MB in the end (delta: -30.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:53:34,034 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:53:34,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.58 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 26.5 MB in the beginning and 39.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:34,039 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.09 ms. Allocated memory is still 67.1 MB. Free memory was 39.9 MB in the beginning and 37.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:34,043 INFO L168 Benchmark]: Boogie Preprocessor took 51.09 ms. Allocated memory is still 67.1 MB. Free memory was 37.5 MB in the beginning and 35.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:34,044 INFO L168 Benchmark]: RCFGBuilder took 1101.82 ms. Allocated memory is still 67.1 MB. Free memory was 35.9 MB in the beginning and 36.2 MB in the end (delta: -293.0 kB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:34,044 INFO L168 Benchmark]: TraceAbstraction took 4907.94 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 35.9 MB in the beginning and 58.9 MB in the end (delta: -23.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:34,045 INFO L168 Benchmark]: Witness Printer took 81.08 ms. Allocated memory is still 81.8 MB. Free memory was 58.9 MB in the beginning and 56.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:34,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 691.58 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 26.5 MB in the beginning and 39.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.09 ms. Allocated memory is still 67.1 MB. Free memory was 39.9 MB in the beginning and 37.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.09 ms. Allocated memory is still 67.1 MB. Free memory was 37.5 MB in the beginning and 35.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1101.82 ms. Allocated memory is still 67.1 MB. Free memory was 35.9 MB in the beginning and 36.2 MB in the end (delta: -293.0 kB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4907.94 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 35.9 MB in the beginning and 58.9 MB in the end (delta: -23.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * Witness Printer took 81.08 ms. Allocated memory is still 81.8 MB. Free memory was 58.9 MB in the beginning and 56.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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) [L532] COND TRUE M < 1 [L533] M = 1 [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; [L540] COND TRUE i < N [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: 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. - UnprovableResult [Line: 526]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 132 SDtfs, 500 SDslu, 259 SDs, 0 SdLazy, 269 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred 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, 169 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 4 QuantifiedInterpolants, 256 SizeOfPredicates, 14 NumberOfNonLiveVariables, 82 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! [2021-10-29 04:53:34,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d8e07b4-a3a1-43cf-95d1-afa1ff88591e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...