./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 c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 19:48:44,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 19:48:44,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 19:48:44,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 19:48:44,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 19:48:44,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 19:48:44,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 19:48:44,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 19:48:44,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 19:48:44,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 19:48:44,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 19:48:44,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 19:48:44,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 19:48:44,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 19:48:44,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 19:48:44,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 19:48:44,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 19:48:44,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 19:48:44,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 19:48:44,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 19:48:44,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 19:48:44,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 19:48:44,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 19:48:44,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 19:48:44,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 19:48:44,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 19:48:44,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 19:48:44,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 19:48:44,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 19:48:44,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 19:48:44,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 19:48:44,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 19:48:44,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 19:48:44,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 19:48:44,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 19:48:44,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 19:48:44,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 19:48:44,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 19:48:44,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 19:48:44,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 19:48:44,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 19:48:44,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-18 19:48:44,233 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 19:48:44,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 19:48:44,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 19:48:44,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 19:48:44,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 19:48:44,235 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 19:48:44,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 19:48:44,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 19:48:44,236 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 19:48:44,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 19:48:44,237 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-18 19:48:44,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-18 19:48:44,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 19:48:44,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-18 19:48:44,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 19:48:44,238 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-18 19:48:44,238 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-18 19:48:44,238 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-18 19:48:44,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 19:48:44,238 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-18 19:48:44,238 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-18 19:48:44,239 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 19:48:44,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 19:48:44,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 19:48:44,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 19:48:44,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 19:48:44,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 19:48:44,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 19:48:44,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 19:48:44,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 19:48:44,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 19:48:44,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2021-12-18 19:48:44,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 19:48:44,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 19:48:44,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 19:48:44,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 19:48:44,434 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 19:48:44,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-12-18 19:48:44,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/448622881/7d3aefaa3406435596971d99f3441c13/FLAGe15405748 [2021-12-18 19:48:44,822 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 19:48:44,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-12-18 19:48:44,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/448622881/7d3aefaa3406435596971d99f3441c13/FLAGe15405748 [2021-12-18 19:48:45,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/448622881/7d3aefaa3406435596971d99f3441c13 [2021-12-18 19:48:45,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 19:48:45,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 19:48:45,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 19:48:45,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 19:48:45,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 19:48:45,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:48:45" (1/1) ... [2021-12-18 19:48:45,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef106f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:45, skipping insertion in model container [2021-12-18 19:48:45,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:48:45" (1/1) ... [2021-12-18 19:48:45,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 19:48:45,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 19:48:45,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 19:48:45,493 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-12-18 19:48:45,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@724c313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:45, skipping insertion in model container [2021-12-18 19:48:45,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 19:48:45,495 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-18 19:48:45,496 INFO L158 Benchmark]: Toolchain (without parser) took 262.31ms. Allocated memory is still 102.8MB. Free memory was 74.6MB in the beginning and 78.9MB in the end (delta: -4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-18 19:48:45,497 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 19:48:45,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.56ms. Allocated memory is still 102.8MB. Free memory was 74.4MB in the beginning and 78.9MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-18 19:48:45,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.56ms. Allocated memory is still 102.8MB. Free memory was 74.4MB in the beginning and 78.9MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. 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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 19:48:46,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 19:48:46,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 19:48:46,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 19:48:46,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 19:48:46,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 19:48:46,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 19:48:46,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 19:48:46,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 19:48:46,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 19:48:46,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 19:48:46,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 19:48:46,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 19:48:46,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 19:48:46,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 19:48:46,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 19:48:46,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 19:48:46,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 19:48:46,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 19:48:46,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 19:48:46,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 19:48:46,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 19:48:46,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 19:48:46,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 19:48:46,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 19:48:46,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 19:48:46,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 19:48:46,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 19:48:46,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 19:48:46,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 19:48:46,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 19:48:46,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 19:48:46,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 19:48:46,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 19:48:46,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 19:48:46,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 19:48:46,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 19:48:46,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 19:48:46,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 19:48:46,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 19:48:46,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 19:48:47,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-18 19:48:47,030 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 19:48:47,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 19:48:47,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 19:48:47,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 19:48:47,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 19:48:47,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 19:48:47,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 19:48:47,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 19:48:47,034 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 19:48:47,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 19:48:47,035 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-18 19:48:47,035 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-18 19:48:47,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 19:48:47,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-18 19:48:47,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 19:48:47,036 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-18 19:48:47,036 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-18 19:48:47,036 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-18 19:48:47,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 19:48:47,036 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-18 19:48:47,036 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-18 19:48:47,037 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-18 19:48:47,037 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-18 19:48:47,037 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 19:48:47,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 19:48:47,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 19:48:47,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 19:48:47,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 19:48:47,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 19:48:47,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 19:48:47,038 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-18 19:48:47,038 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-18 19:48:47,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 19:48:47,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-18 19:48:47,039 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2021-12-18 19:48:47,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 19:48:47,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 19:48:47,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 19:48:47,292 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 19:48:47,292 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 19:48:47,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-12-18 19:48:47,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb04f8d71/86287c456f4046e59f0bd081a81f8bca/FLAGd3e2af7df [2021-12-18 19:48:47,698 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 19:48:47,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-12-18 19:48:47,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb04f8d71/86287c456f4046e59f0bd081a81f8bca/FLAGd3e2af7df [2021-12-18 19:48:48,086 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb04f8d71/86287c456f4046e59f0bd081a81f8bca [2021-12-18 19:48:48,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 19:48:48,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 19:48:48,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 19:48:48,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 19:48:48,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 19:48:48,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:48:48" (1/1) ... [2021-12-18 19:48:48,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a01125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48, skipping insertion in model container [2021-12-18 19:48:48,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:48:48" (1/1) ... [2021-12-18 19:48:48,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 19:48:48,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 19:48:48,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 19:48:48,369 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-18 19:48:48,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 19:48:48,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 19:48:48,405 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 19:48:48,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 19:48:48,461 INFO L208 MainTranslator]: Completed translation [2021-12-18 19:48:48,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48 WrapperNode [2021-12-18 19:48:48,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 19:48:48,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 19:48:48,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 19:48:48,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 19:48:48,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48" (1/1) ... [2021-12-18 19:48:48,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48" (1/1) ... [2021-12-18 19:48:48,491 INFO L137 Inliner]: procedures = 117, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 112 [2021-12-18 19:48:48,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 19:48:48,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 19:48:48,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 19:48:48,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 19:48:48,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48" (1/1) ... [2021-12-18 19:48:48,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48" (1/1) ... [2021-12-18 19:48:48,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48" (1/1) ... [2021-12-18 19:48:48,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48" (1/1) ... [2021-12-18 19:48:48,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48" (1/1) ... [2021-12-18 19:48:48,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48" (1/1) ... [2021-12-18 19:48:48,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48" (1/1) ... [2021-12-18 19:48:48,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 19:48:48,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 19:48:48,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 19:48:48,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 19:48:48,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48" (1/1) ... [2021-12-18 19:48:48,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 19:48:48,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 19:48:48,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 19:48:48,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 19:48:48,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-18 19:48:48,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 19:48:48,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 19:48:48,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-18 19:48:48,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 19:48:48,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 19:48:48,648 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 19:48:48,652 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 19:48:49,110 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 19:48:49,114 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 19:48:49,115 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-18 19:48:49,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:48:49 BoogieIcfgContainer [2021-12-18 19:48:49,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 19:48:49,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 19:48:49,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 19:48:49,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 19:48:49,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:48:48" (1/3) ... [2021-12-18 19:48:49,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec3bb59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:48:49, skipping insertion in model container [2021-12-18 19:48:49,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:48:48" (2/3) ... [2021-12-18 19:48:49,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec3bb59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:48:49, skipping insertion in model container [2021-12-18 19:48:49,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:48:49" (3/3) ... [2021-12-18 19:48:49,124 INFO L111 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2021-12-18 19:48:49,129 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 19:48:49,129 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-12-18 19:48:49,168 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 19:48:49,174 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 19:48:49,175 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-12-18 19:48:49,192 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) [2021-12-18 19:48:49,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-18 19:48:49,196 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 19:48:49,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-18 19:48:49,197 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-12-18 19:48:49,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 19:48:49,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029096, now seen corresponding path program 1 times [2021-12-18 19:48:49,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 19:48:49,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507461145] [2021-12-18 19:48:49,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 19:48:49,210 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 19:48:49,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 19:48:49,212 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 19:48:49,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-18 19:48:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 19:48:49,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-18 19:48:49,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 19:48:49,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-18 19:48:49,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-18 19:48:49,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-18 19:48:49,517 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-12-18 19:48:49,518 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 132 treesize of output 140 [2021-12-18 19:48:49,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 19:48:49,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 19:48:49,740 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 19:48:49,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507461145] [2021-12-18 19:48:49,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507461145] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 19:48:49,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 19:48:49,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 19:48:49,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102371851] [2021-12-18 19:48:49,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 19:48:49,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 19:48:49,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 19:48:49,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 19:48:49,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 19:48:49,769 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 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 19:48:49,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 19:48:49,788 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2021-12-18 19:48:49,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 19:48:49,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 [2021-12-18 19:48:49,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 19:48:49,794 INFO L225 Difference]: With dead ends: 72 [2021-12-18 19:48:49,795 INFO L226 Difference]: Without dead ends: 70 [2021-12-18 19:48:49,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 19:48:49,798 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 5 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 19:48:49,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 105 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 33 Unchecked, 0.0s Time] [2021-12-18 19:48:49,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-12-18 19:48:49,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2021-12-18 19:48:49,824 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) [2021-12-18 19:48:49,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 74 transitions. [2021-12-18 19:48:49,827 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 74 transitions. Word has length 7 [2021-12-18 19:48:49,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 19:48:49,828 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 74 transitions. [2021-12-18 19:48:49,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 19:48:49,828 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 74 transitions. [2021-12-18 19:48:49,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-18 19:48:49,828 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 19:48:49,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-18 19:48:49,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-18 19:48:50,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 19:48:50,036 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-12-18 19:48:50,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 19:48:50,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029097, now seen corresponding path program 1 times [2021-12-18 19:48:50,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 19:48:50,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755399643] [2021-12-18 19:48:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 19:48:50,037 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 19:48:50,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 19:48:50,038 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 19:48:50,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-18 19:48:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 19:48:50,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-18 19:48:50,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 19:48:50,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 19:48:50,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 19:48:50,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 19:48:50,174 INFO L354 Elim1Store]: treesize reduction 38, result has 34.5 percent of original size [2021-12-18 19:48:50,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 25 [2021-12-18 19:48:50,196 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-18 19:48:50,199 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 117 treesize of output 111 [2021-12-18 19:48:50,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 19:48:50,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 19:48:50,359 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 19:48:50,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755399643] [2021-12-18 19:48:50,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755399643] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 19:48:50,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 19:48:50,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 19:48:50,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926671797] [2021-12-18 19:48:50,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 19:48:50,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 19:48:50,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 19:48:50,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 19:48:50,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 19:48:50,361 INFO L87 Difference]: Start difference. First operand 65 states and 74 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 19:48:50,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 19:48:50,405 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2021-12-18 19:48:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 19:48:50,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 [2021-12-18 19:48:50,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 19:48:50,407 INFO L225 Difference]: With dead ends: 71 [2021-12-18 19:48:50,407 INFO L226 Difference]: Without dead ends: 71 [2021-12-18 19:48:50,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-18 19:48:50,408 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 4 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 19:48:50,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 223 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 33 Unchecked, 0.0s Time] [2021-12-18 19:48:50,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-12-18 19:48:50,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2021-12-18 19:48:50,412 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) [2021-12-18 19:48:50,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2021-12-18 19:48:50,413 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 7 [2021-12-18 19:48:50,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 19:48:50,413 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2021-12-18 19:48:50,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 19:48:50,414 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2021-12-18 19:48:50,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-18 19:48:50,414 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 19:48:50,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-18 19:48:50,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-18 19:48:50,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 19:48:50,621 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-12-18 19:48:50,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 19:48:50,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1805088679, now seen corresponding path program 1 times [2021-12-18 19:48:50,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 19:48:50,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404865545] [2021-12-18 19:48:50,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 19:48:50,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 19:48:50,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 19:48:50,623 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 19:48:50,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-18 19:48:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 19:48:50,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-18 19:48:50,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 19:48:50,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 19:48:50,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 19:48:50,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 19:48:50,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 19:48:50,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 19:48:50,751 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-18 19:48:50,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 25 [2021-12-18 19:48:50,774 INFO L354 Elim1Store]: treesize reduction 19, result has 24.0 percent of original size [2021-12-18 19:48:50,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 955 treesize of output 939 [2021-12-18 19:48:50,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 19:48:50,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 19:48:50,939 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 19:48:50,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404865545] [2021-12-18 19:48:50,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1404865545] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 19:48:50,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 19:48:50,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 19:48:50,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177607685] [2021-12-18 19:48:50,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 19:48:50,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 19:48:50,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 19:48:50,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 19:48:50,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 19:48:50,943 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 19:48:51,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 19:48:51,319 INFO L93 Difference]: Finished difference Result 136 states and 151 transitions. [2021-12-18 19:48:51,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 19:48:51,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 [2021-12-18 19:48:51,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 19:48:51,321 INFO L225 Difference]: With dead ends: 136 [2021-12-18 19:48:51,321 INFO L226 Difference]: Without dead ends: 136 [2021-12-18 19:48:51,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 19:48:51,322 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 78 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-18 19:48:51,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 248 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-18 19:48:51,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-12-18 19:48:51,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 69. [2021-12-18 19:48:51,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 42 states have (on average 1.880952380952381) internal successors, (79), 68 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 19:48:51,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2021-12-18 19:48:51,326 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 7 [2021-12-18 19:48:51,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 19:48:51,326 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2021-12-18 19:48:51,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 19:48:51,326 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2021-12-18 19:48:51,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-18 19:48:51,326 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 19:48:51,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-18 19:48:51,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-18 19:48:51,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 19:48:51,533 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-12-18 19:48:51,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 19:48:51,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1806876139, now seen corresponding path program 1 times [2021-12-18 19:48:51,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 19:48:51,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638804736] [2021-12-18 19:48:51,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 19:48:51,534 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 19:48:51,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 19:48:51,535 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 19:48:51,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-18 19:48:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 19:48:51,579 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-18 19:48:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 19:48:51,626 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-18 19:48:51,626 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-18 19:48:51,627 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION (26 of 27 remaining) [2021-12-18 19:48:51,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (25 of 27 remaining) [2021-12-18 19:48:51,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (24 of 27 remaining) [2021-12-18 19:48:51,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (23 of 27 remaining) [2021-12-18 19:48:51,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (22 of 27 remaining) [2021-12-18 19:48:51,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (21 of 27 remaining) [2021-12-18 19:48:51,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (20 of 27 remaining) [2021-12-18 19:48:51,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (19 of 27 remaining) [2021-12-18 19:48:51,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (18 of 27 remaining) [2021-12-18 19:48:51,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (17 of 27 remaining) [2021-12-18 19:48:51,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION (16 of 27 remaining) [2021-12-18 19:48:51,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION (15 of 27 remaining) [2021-12-18 19:48:51,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION (14 of 27 remaining) [2021-12-18 19:48:51,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION (13 of 27 remaining) [2021-12-18 19:48:51,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION (12 of 27 remaining) [2021-12-18 19:48:51,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION (11 of 27 remaining) [2021-12-18 19:48:51,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION (10 of 27 remaining) [2021-12-18 19:48:51,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION (9 of 27 remaining) [2021-12-18 19:48:51,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION (8 of 27 remaining) [2021-12-18 19:48:51,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION (7 of 27 remaining) [2021-12-18 19:48:51,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION (6 of 27 remaining) [2021-12-18 19:48:51,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION (5 of 27 remaining) [2021-12-18 19:48:51,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION (4 of 27 remaining) [2021-12-18 19:48:51,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION (3 of 27 remaining) [2021-12-18 19:48:51,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION (2 of 27 remaining) [2021-12-18 19:48:51,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION (1 of 27 remaining) [2021-12-18 19:48:51,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK (0 of 27 remaining) [2021-12-18 19:48:51,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-18 19:48:51,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 19:48:51,841 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-18 19:48:51,843 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-18 19:48:51,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:48:51 BoogieIcfgContainer [2021-12-18 19:48:51,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-18 19:48:51,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-18 19:48:51,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-18 19:48:51,858 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-18 19:48:51,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:48:49" (3/4) ... [2021-12-18 19:48:51,862 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-18 19:48:51,886 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-18 19:48:51,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-18 19:48:51,887 INFO L158 Benchmark]: Toolchain (without parser) took 3797.74ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 48.5MB in the beginning and 70.3MB in the end (delta: -21.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2021-12-18 19:48:51,887 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 30.4MB in the beginning and 30.3MB in the end (delta: 32.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 19:48:51,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.15ms. Allocated memory is still 65.0MB. Free memory was 48.1MB in the beginning and 37.9MB in the end (delta: 10.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-18 19:48:51,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.21ms. Allocated memory is still 65.0MB. Free memory was 37.9MB in the beginning and 35.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-18 19:48:51,888 INFO L158 Benchmark]: Boogie Preprocessor took 34.76ms. Allocated memory is still 65.0MB. Free memory was 35.6MB in the beginning and 34.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 19:48:51,889 INFO L158 Benchmark]: RCFGBuilder took 589.47ms. Allocated memory is still 65.0MB. Free memory was 33.9MB in the beginning and 30.9MB in the end (delta: 3.0MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2021-12-18 19:48:51,889 INFO L158 Benchmark]: TraceAbstraction took 2739.77ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 30.4MB in the beginning and 72.4MB in the end (delta: -42.1MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2021-12-18 19:48:51,889 INFO L158 Benchmark]: Witness Printer took 28.35ms. Allocated memory is still 96.5MB. Free memory was 71.7MB in the beginning and 70.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 19:48:51,891 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 30.4MB in the beginning and 30.3MB in the end (delta: 32.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.15ms. Allocated memory is still 65.0MB. Free memory was 48.1MB in the beginning and 37.9MB in the end (delta: 10.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.21ms. Allocated memory is still 65.0MB. Free memory was 37.9MB in the beginning and 35.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.76ms. Allocated memory is still 65.0MB. Free memory was 35.6MB in the beginning and 34.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 589.47ms. Allocated memory is still 65.0MB. Free memory was 33.9MB in the beginning and 30.9MB in the end (delta: 3.0MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2739.77ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 30.4MB in the beginning and 72.4MB in the end (delta: -42.1MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Witness Printer took 28.35ms. Allocated memory is still 96.5MB. Free memory was 71.7MB in the beginning and 70.3MB in the end (delta: 1.4MB). 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 - CounterExampleResult [Line: 542]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND FALSE !(N < 1) VAL [N=1073741824] [L532] COND TRUE M < 1 [L533] M = 1 VAL [M=1, N=1073741824] [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; VAL [__builtin_alloca (M * sizeof(int))={5:0}, __builtin_alloca (M * sizeof(int))={-2147483645:0}, __builtin_alloca (N * sizeof(int))={7:0}, __builtin_alloca (N * sizeof(int))={3:0}, best={-2147483645:0}, cost={5:0}, i=0, M=1, N=1073741824, size={3:0}, val={7:0}] [L540] COND TRUE i < N VAL [__builtin_alloca (M * sizeof(int))={5:0}, __builtin_alloca (M * sizeof(int))={-2147483645:0}, __builtin_alloca (N * sizeof(int))={7:0}, __builtin_alloca (N * sizeof(int))={3:0}, best={-2147483645:0}, cost={5:0}, i=0, M=1, N=1073741824, size={3:0}, val={7:0}] [L542] size[i] = __VERIFIER_nondet_int() - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 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: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 576 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 66 IncrementalHoareTripleChecker+Unchecked, 327 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 249 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=2, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 74 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 4 QuantifiedInterpolants, 178 SizeOfPredicates, 17 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2021-12-18 19:48:51,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)