./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 8d31f386 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 134c0db99ce5251339642354d8ec6411765b7878 ................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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 134c0db99ce5251339642354d8ec6411765b7878 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-wip.dd.multireach-323-8d31f38 [2021-07-06 08:47:28,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 08:47:28,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 08:47:28,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 08:47:28,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 08:47:28,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 08:47:28,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 08:47:28,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 08:47:28,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 08:47:28,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 08:47:28,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 08:47:28,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 08:47:28,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 08:47:28,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 08:47:28,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 08:47:28,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 08:47:28,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 08:47:28,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 08:47:28,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 08:47:28,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 08:47:28,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 08:47:28,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 08:47:28,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 08:47:28,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 08:47:28,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 08:47:28,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 08:47:28,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 08:47:28,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 08:47:28,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 08:47:28,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 08:47:28,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 08:47:28,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 08:47:28,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 08:47:28,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 08:47:28,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 08:47:28,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 08:47:28,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 08:47:28,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 08:47:28,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 08:47:28,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 08:47:28,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 08:47:28,206 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-07-06 08:47:28,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 08:47:28,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 08:47:28,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 08:47:28,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 08:47:28,246 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 08:47:28,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 08:47:28,246 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 08:47:28,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 08:47:28,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 08:47:28,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 08:47:28,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 08:47:28,248 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-07-06 08:47:28,248 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-07-06 08:47:28,248 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-07-06 08:47:28,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 08:47:28,249 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-07-06 08:47:28,249 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 08:47:28,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 08:47:28,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 08:47:28,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 08:47:28,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 08:47:28,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 08:47:28,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 08:47:28,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 08:47:28,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 08:47:28,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-06 08:47:28,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 08:47:28,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134c0db99ce5251339642354d8ec6411765b7878 [2021-07-06 08:47:28,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 08:47:28,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 08:47:28,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 08:47:28,598 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 08:47:28,598 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 08:47:28,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-07-06 08:47:28,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/835126379/ce300b0575af45a3ae674e9edd4c4f99/FLAGdb2a86c4b [2021-07-06 08:47:29,062 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 08:47:29,063 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-07-06 08:47:29,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/835126379/ce300b0575af45a3ae674e9edd4c4f99/FLAGdb2a86c4b [2021-07-06 08:47:29,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/835126379/ce300b0575af45a3ae674e9edd4c4f99 [2021-07-06 08:47:29,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 08:47:29,426 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-06 08:47:29,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 08:47:29,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 08:47:29,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 08:47:29,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:47:29" (1/1) ... [2021-07-06 08:47:29,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60767b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:29, skipping insertion in model container [2021-07-06 08:47:29,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:47:29" (1/1) ... [2021-07-06 08:47:29,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 08:47:29,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 08:47:29,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 08:47:29,735 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) [2021-07-06 08:47:29,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@476b82a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:29, skipping insertion in model container [2021-07-06 08:47:29,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 08:47:29,736 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-07-06 08:47:29,738 INFO L168 Benchmark]: Toolchain (without parser) took 310.74 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.2 MB in the beginning and 44.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:29,739 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 52.4 MB. Free memory was 32.8 MB in the beginning and 32.7 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 08:47:29,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.04 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.9 MB in the beginning and 44.4 MB in the end (delta: -16.4 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:29,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 52.4 MB. Free memory was 32.8 MB in the beginning and 32.7 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.04 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.9 MB in the beginning and 44.4 MB in the end (delta: -16.4 MB). Peak memory consumption was 3.7 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-wip.dd.multireach-323-8d31f38 [2021-07-06 08:47:31,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 08:47:31,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 08:47:31,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 08:47:31,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 08:47:31,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 08:47:31,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 08:47:31,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 08:47:31,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 08:47:31,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 08:47:31,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 08:47:31,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 08:47:31,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 08:47:31,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 08:47:31,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 08:47:31,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 08:47:31,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 08:47:31,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 08:47:31,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 08:47:31,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 08:47:31,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 08:47:31,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 08:47:31,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 08:47:31,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 08:47:31,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 08:47:31,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 08:47:31,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 08:47:31,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 08:47:31,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 08:47:31,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 08:47:31,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 08:47:31,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 08:47:31,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 08:47:31,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 08:47:31,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 08:47:31,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 08:47:31,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 08:47:31,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 08:47:31,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 08:47:31,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 08:47:31,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 08:47:31,429 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-07-06 08:47:31,461 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 08:47:31,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 08:47:31,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 08:47:31,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 08:47:31,464 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 08:47:31,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 08:47:31,465 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 08:47:31,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 08:47:31,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 08:47:31,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 08:47:31,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 08:47:31,466 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-07-06 08:47:31,466 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-07-06 08:47:31,467 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-07-06 08:47:31,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 08:47:31,473 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-07-06 08:47:31,473 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-06 08:47:31,473 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-06 08:47:31,473 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 08:47:31,473 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 08:47:31,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 08:47:31,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 08:47:31,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 08:47:31,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 08:47:31,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 08:47:31,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 08:47:31,474 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-06 08:47:31,474 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-06 08:47:31,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 08:47:31,474 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-06 08:47:31,474 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134c0db99ce5251339642354d8ec6411765b7878 [2021-07-06 08:47:31,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 08:47:31,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 08:47:31,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 08:47:31,788 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 08:47:31,789 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 08:47:31,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-07-06 08:47:31,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f95cfd76b/669191cd140144b0a75ce20d84e10b59/FLAG3411555be [2021-07-06 08:47:32,381 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 08:47:32,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-07-06 08:47:32,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f95cfd76b/669191cd140144b0a75ce20d84e10b59/FLAG3411555be [2021-07-06 08:47:32,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f95cfd76b/669191cd140144b0a75ce20d84e10b59 [2021-07-06 08:47:32,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 08:47:32,859 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-06 08:47:32,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 08:47:32,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 08:47:32,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 08:47:32,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:47:32" (1/1) ... [2021-07-06 08:47:32,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b2ee32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:32, skipping insertion in model container [2021-07-06 08:47:32,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:47:32" (1/1) ... [2021-07-06 08:47:32,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 08:47:32,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 08:47:33,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 08:47:33,275 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-07-06 08:47:33,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 08:47:33,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 08:47:33,331 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 08:47:33,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 08:47:33,414 INFO L208 MainTranslator]: Completed translation [2021-07-06 08:47:33,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:33 WrapperNode [2021-07-06 08:47:33,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 08:47:33,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 08:47:33,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 08:47:33,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 08:47:33,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:33" (1/1) ... [2021-07-06 08:47:33,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:33" (1/1) ... [2021-07-06 08:47:33,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:33" (1/1) ... [2021-07-06 08:47:33,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:33" (1/1) ... [2021-07-06 08:47:33,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:33" (1/1) ... [2021-07-06 08:47:33,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:33" (1/1) ... [2021-07-06 08:47:33,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:33" (1/1) ... [2021-07-06 08:47:33,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 08:47:33,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 08:47:33,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 08:47:33,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 08:47:33,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:33" (1/1) ... [2021-07-06 08:47:33,537 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 08:47:33,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 08:47:33,557 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) [2021-07-06 08:47:33,577 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 [2021-07-06 08:47:33,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-07-06 08:47:33,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 08:47:33,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-07-06 08:47:33,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-07-06 08:47:33,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-07-06 08:47:33,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-07-06 08:47:33,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-07-06 08:47:33,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-07-06 08:47:33,603 INFO L138 BoogieDeclarations]: Found implementation of procedure knapsack [2021-07-06 08:47:33,603 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-07-06 08:47:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-07-06 08:47:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-07-06 08:47:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-07-06 08:47:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-07-06 08:47:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-07-06 08:47:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-07-06 08:47:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-07-06 08:47:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-07-06 08:47:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-07-06 08:47:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-07-06 08:47:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-07-06 08:47:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-07-06 08:47:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-07-06 08:47:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-07-06 08:47:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-07-06 08:47:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-07-06 08:47:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-07-06 08:47:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-07-06 08:47:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-07-06 08:47:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-07-06 08:47:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-07-06 08:47:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-07-06 08:47:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-07-06 08:47:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-07-06 08:47:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-07-06 08:47:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-07-06 08:47:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-07-06 08:47:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-07-06 08:47:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-07-06 08:47:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-07-06 08:47:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-07-06 08:47:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-07-06 08:47:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-07-06 08:47:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-07-06 08:47:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-07-06 08:47:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-07-06 08:47:33,608 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-07-06 08:47:33,608 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-07-06 08:47:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-07-06 08:47:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-07-06 08:47:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-07-06 08:47:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-07-06 08:47:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-07-06 08:47:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-07-06 08:47:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-07-06 08:47:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-07-06 08:47:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-07-06 08:47:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-07-06 08:47:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-07-06 08:47:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-07-06 08:47:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-07-06 08:47:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-07-06 08:47:33,611 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-07-06 08:47:33,611 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-07-06 08:47:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-07-06 08:47:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-07-06 08:47:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-07-06 08:47:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-07-06 08:47:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-07-06 08:47:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-07-06 08:47:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-07-06 08:47:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-07-06 08:47:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-07-06 08:47:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-07-06 08:47:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-07-06 08:47:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-07-06 08:47:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-07-06 08:47:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-07-06 08:47:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-07-06 08:47:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-07-06 08:47:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-07-06 08:47:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-07-06 08:47:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-07-06 08:47:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-07-06 08:47:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-07-06 08:47:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-07-06 08:47:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-07-06 08:47:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-07-06 08:47:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-07-06 08:47:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-07-06 08:47:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-07-06 08:47:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-07-06 08:47:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-07-06 08:47:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-07-06 08:47:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-07-06 08:47:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-07-06 08:47:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-07-06 08:47:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-07-06 08:47:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-07-06 08:47:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-07-06 08:47:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-07-06 08:47:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-07-06 08:47:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-07-06 08:47:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-07-06 08:47:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-07-06 08:47:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-07-06 08:47:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-07-06 08:47:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-07-06 08:47:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-07-06 08:47:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-07-06 08:47:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-07-06 08:47:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-07-06 08:47:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-07-06 08:47:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-07-06 08:47:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-07-06 08:47:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-07-06 08:47:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-07-06 08:47:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-07-06 08:47:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure knapsack [2021-07-06 08:47:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-07-06 08:47:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-07-06 08:47:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-07-06 08:47:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 08:47:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-06 08:47:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-07-06 08:47:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 08:47:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-07-06 08:47:34,597 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 08:47:34,598 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-06 08:47:34,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:47:34 BoogieIcfgContainer [2021-07-06 08:47:34,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 08:47:34,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-06 08:47:34,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-06 08:47:34,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-06 08:47:34,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.07 08:47:32" (1/3) ... [2021-07-06 08:47:34,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4194a392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 08:47:34, skipping insertion in model container [2021-07-06 08:47:34,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:33" (2/3) ... [2021-07-06 08:47:34,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4194a392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 08:47:34, skipping insertion in model container [2021-07-06 08:47:34,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:47:34" (3/3) ... [2021-07-06 08:47:34,615 INFO L111 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2021-07-06 08:47:34,620 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-06 08:47:34,621 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-07-06 08:47:34,665 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == mainErr0REQUIRES_VIOLATION ======== [2021-07-06 08:47:34,672 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 08:47:34,673 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 08:47:34,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 39 states have (on average 2.0) internal successors, (78), 66 states have internal predecessors, (78), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-07-06 08:47:34,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-06 08:47:34,695 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 08:47:34,696 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 08:47:34,696 INFO L374 AbstractCegarLoop]: === Iteration 1 === [mainErr0REQUIRES_VIOLATION] === [2021-07-06 08:47:34,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 08:47:34,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1775609137, now seen corresponding path program 1 times [2021-07-06 08:47:34,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-06 08:47:34,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838483076] [2021-07-06 08:47:34,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 08:47:34,710 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-06 08:47:34,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-06 08:47:34,712 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) [2021-07-06 08:47:34,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-07-06 08:47:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 08:47:34,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-06 08:47:34,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 08:47:34,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:34,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:34,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-06 08:47:34,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-06 08:47:34,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:34,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-06 08:47:34,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-06 08:47:34,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:34,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:34,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-06 08:47:34,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-06 08:47:34,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:34,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:34,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:34,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-06 08:47:34,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-06 08:47:34,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:34,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-06 08:47:34,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-07-06 08:47:34,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:34,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:34,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-06 08:47:34,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-06 08:47:35,076 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-07-06 08:47:35,077 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 41 treesize of output 51 [2021-07-06 08:47:35,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 08:47:35,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 08:47:35,084 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-06 08:47:35,100 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:35,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-06 08:47:35,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-06 08:47:35,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-06 08:47:35,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-06 08:47:35,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-06 08:47:35,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-06 08:47:35,119 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-06 08:47:35,119 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:38, output treesize:42 [2021-07-06 08:47:35,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:35,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-06 08:47:35,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-06 08:47:35,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-06 08:47:35,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-06 08:47:35,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-06 08:47:35,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-06 08:47:35,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:35,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-06 08:47:35,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-06 08:47:35,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-06 08:47:35,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-06 08:47:35,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-06 08:47:35,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-06 08:47:35,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-06 08:47:35,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-06 08:47:35,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-06 08:47:35,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-06 08:47:35,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-06 08:47:35,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-06 08:47:35,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-06 08:47:35,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-06 08:47:35,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-06 08:47:35,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-06 08:47:35,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-06 08:47:35,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-06 08:47:35,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-06 08:47:35,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-06 08:47:35,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 08:47:35,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-06 08:47:35,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:35,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:35,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:35,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:35,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 08:47:35,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 08:47:35,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 08:47:35,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 08:47:35,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-06 08:47:35,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-06 08:47:35,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-06 08:47:35,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-07-06 08:47:35,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 08:47:35,290 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-06 08:47:35,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838483076] [2021-07-06 08:47:35,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838483076] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-06 08:47:35,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-06 08:47:35,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-07-06 08:47:35,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35848269] [2021-07-06 08:47:35,297 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 08:47:35,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-06 08:47:35,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 08:47:35,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-06 08:47:35,312 INFO L87 Difference]: Start difference. First operand has 73 states, 39 states have (on average 2.0) internal successors, (78), 66 states have internal predecessors, (78), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 08:47:35,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 08:47:35,521 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2021-07-06 08:47:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 08:47:35,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-07-06 08:47:35,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 08:47:35,527 INFO L225 Difference]: With dead ends: 72 [2021-07-06 08:47:35,527 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 08:47:35,528 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-06 08:47:35,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 08:47:35,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 08:47:35,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 08:47:35,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 08:47:35,547 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-07-06 08:47:35,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 08:47:35,547 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 08:47:35,547 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 08:47:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 08:47:35,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 08:47:35,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-07-06 08:47:35,758 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-06 08:47:35,758 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 08:47:35,761 INFO L303 ceAbstractionStarter]: Result for error location mainErr0REQUIRES_VIOLATION was SAFE (1/27) [2021-07-06 08:47:35,763 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == mainErr1REQUIRES_VIOLATION ======== [2021-07-06 08:47:35,764 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 08:47:35,764 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 08:47:35,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 39 states have (on average 2.0) internal successors, (78), 66 states have internal predecessors, (78), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-07-06 08:47:35,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-06 08:47:35,769 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 08:47:35,769 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 08:47:35,769 INFO L374 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION] === [2021-07-06 08:47:35,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 08:47:35,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1775609136, now seen corresponding path program 1 times [2021-07-06 08:47:35,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-06 08:47:35,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580432098] [2021-07-06 08:47:35,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 08:47:35,771 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-06 08:47:35,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-06 08:47:35,774 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) [2021-07-06 08:47:35,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-07-06 08:47:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 08:47:35,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-06 08:47:35,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 08:47:35,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:35,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 08:47:35,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 08:47:35,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 08:47:35,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 08:47:35,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 08:47:35,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 08:47:35,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 08:47:35,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 08:47:35,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:35,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:35,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-07-06 08:47:35,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-06 08:47:35,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-06 08:47:35,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-06 08:47:35,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-06 08:47:35,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:35,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-06 08:47:35,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-06 08:47:35,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-06 08:47:35,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-06 08:47:35,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-07-06 08:47:35,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:35,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:35,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-07-06 08:47:35,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-06 08:47:35,982 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_35|], 4=[|v_#valid_50|]} [2021-07-06 08:47:35,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-06 08:47:35,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-06 08:47:35,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-06 08:47:36,034 INFO L354 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2021-07-06 08:47:36,035 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 21 [2021-07-06 08:47:36,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-06 08:47:36,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-06 08:47:36,037 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-06 08:47:36,059 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,072 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-07-06 08:47:36,072 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 26 treesize of output 22 [2021-07-06 08:47:36,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-06 08:47:36,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-06 08:47:36,077 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-06 08:47:36,103 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 08:47:36,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-06 08:47:36,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 08:47:36,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-06 08:47:36,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:36,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:36,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 08:47:36,116 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-06 08:47:36,116 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:44, output treesize:39 [2021-07-06 08:47:36,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 08:47:36,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-06 08:47:36,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 08:47:36,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-06 08:47:36,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:36,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:36,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 08:47:36,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:36,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:36,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 08:47:36,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:36,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-06 08:47:36,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:36,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-06 08:47:36,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 08:47:36,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-06 08:47:36,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 08:47:36,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-06 08:47:36,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:36,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-06 08:47:36,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 08:47:36,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-06 08:47:36,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 08:47:36,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-06 08:47:36,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:36,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-06 08:47:36,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:36,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-06 08:47:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 08:47:36,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-06 08:47:36,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-07-06 08:47:36,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-07-06 08:47:36,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-07-06 08:47:36,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-07-06 08:47:36,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:36,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:36,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:36,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-06 08:47:36,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-07-06 08:47:36,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-07-06 08:47:36,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-07-06 08:47:36,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-07-06 08:47:36,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-06 08:47:36,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-06 08:47:36,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-06 08:47:36,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-06 08:47:36,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-06 08:47:36,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-06 08:47:36,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-06 08:47:36,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-06 08:47:36,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-07-06 08:47:36,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-06 08:47:36,393 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-06 08:47:36,394 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-06 08:47:36,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-06 08:47:36,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-06 08:47:36,398 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-06 08:47:36,425 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,447 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-07-06 08:47:36,447 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 25 treesize of output 21 [2021-07-06 08:47:36,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-06 08:47:36,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-06 08:47:36,455 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-06 08:47:36,480 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,483 INFO L732 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-07-06 08:47:36,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 08:47:36,524 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:36,528 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-07-06 08:47:36,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-06 08:47:36,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-06 08:47:36,534 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-06 08:47:36,535 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:50, output treesize:11 [2021-07-06 08:47:36,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-06 08:47:36,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-06 08:47:36,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:36,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:36,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:36,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:36,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:36,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 08:47:36,604 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-06 08:47:36,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580432098] [2021-07-06 08:47:36,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580432098] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-06 08:47:36,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-06 08:47:36,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-07-06 08:47:36,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957892487] [2021-07-06 08:47:36,606 INFO L425 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-06 08:47:36,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-06 08:47:36,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-06 08:47:36,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-07-06 08:47:36,608 INFO L87 Difference]: Start difference. First operand has 73 states, 39 states have (on average 2.0) internal successors, (78), 66 states have internal predecessors, (78), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 08:47:37,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 08:47:37,450 INFO L93 Difference]: Finished difference Result 144 states and 161 transitions. [2021-07-06 08:47:37,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-06 08:47:37,451 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-07-06 08:47:37,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 08:47:37,452 INFO L225 Difference]: With dead ends: 144 [2021-07-06 08:47:37,452 INFO L226 Difference]: Without dead ends: 41 [2021-07-06 08:47:37,453 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 325.4ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-07-06 08:47:37,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-07-06 08:47:37,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 20. [2021-07-06 08:47:37,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 08:47:37,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-07-06 08:47:37,460 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 11 [2021-07-06 08:47:37,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 08:47:37,460 INFO L442 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-07-06 08:47:37,460 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 08:47:37,460 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-07-06 08:47:37,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-06 08:47:37,461 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 08:47:37,461 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 08:47:37,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-07-06 08:47:37,669 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-06 08:47:37,669 INFO L374 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION] === [2021-07-06 08:47:37,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 08:47:37,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1773762094, now seen corresponding path program 1 times [2021-07-06 08:47:37,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-06 08:47:37,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905324772] [2021-07-06 08:47:37,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 08:47:37,671 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-06 08:47:37,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-06 08:47:37,671 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) [2021-07-06 08:47:37,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-07-06 08:47:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 08:47:37,786 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 08:47:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 08:47:37,804 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 08:47:37,825 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-07-06 08:47:37,825 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-06 08:47:37,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-07-06 08:47:38,026 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-06 08:47:38,027 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 08:47:38,027 INFO L303 ceAbstractionStarter]: Result for error location mainErr1REQUIRES_VIOLATION was UNSAFE (2/27) [2021-07-06 08:47:38,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.07 08:47:38 BoogieIcfgContainer [2021-07-06 08:47:38,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-06 08:47:38,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 08:47:38,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 08:47:38,042 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 08:47:38,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:47:34" (3/4) ... [2021-07-06 08:47:38,043 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-06 08:47:38,066 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 08:47:38,067 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 08:47:38,067 INFO L168 Benchmark]: Toolchain (without parser) took 5208.48 ms. Allocated memory was 67.1 MB in the beginning and 113.2 MB in the end (delta: 46.1 MB). Free memory was 46.2 MB in the beginning and 47.2 MB in the end (delta: -969.2 kB). Peak memory consumption was 43.5 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:38,067 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 67.1 MB. Free memory is still 49.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 08:47:38,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.04 ms. Allocated memory is still 67.1 MB. Free memory was 46.0 MB in the beginning and 34.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:38,067 INFO L168 Benchmark]: Boogie Preprocessor took 108.09 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 34.0 MB in the beginning and 72.0 MB in the end (delta: -38.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:38,068 INFO L168 Benchmark]: RCFGBuilder took 1072.47 ms. Allocated memory is still 90.2 MB. Free memory was 72.0 MB in the beginning and 42.9 MB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:38,068 INFO L168 Benchmark]: TraceAbstraction took 3437.84 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 42.9 MB in the beginning and 49.3 MB in the end (delta: -6.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:38,068 INFO L168 Benchmark]: Witness Printer took 25.10 ms. Allocated memory is still 113.2 MB. Free memory was 49.3 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:38,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 67.1 MB. Free memory is still 49.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 555.04 ms. Allocated memory is still 67.1 MB. Free memory was 46.0 MB in the beginning and 34.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.09 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 34.0 MB in the beginning and 72.0 MB in the end (delta: -38.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1072.47 ms. Allocated memory is still 90.2 MB. Free memory was 72.0 MB in the beginning and 42.9 MB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3437.84 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 42.9 MB in the beginning and 49.3 MB in the end (delta: -6.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * Witness Printer took 25.10 ms. Allocated memory is still 113.2 MB. Free memory was 49.3 MB in the beginning and 47.2 MB in the end (delta: 2.1 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 542]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - CounterExampleResult [Line: 542]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND FALSE !(N < 1) VAL [M=0, N=1073741824] [L532] COND TRUE M < 1 [L533] M = 1 VAL [M=1, N=1073741824] [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; VAL [__builtin_alloca (M * sizeof(int))={3:0}, __builtin_alloca (M * sizeof(int))={7:0}, __builtin_alloca (N * sizeof(int))={-2147483648:0}, __builtin_alloca (N * sizeof(int))={5:0}, best={7:0}, cost={3:0}, i=0, M=1, N=1073741824, size={-2147483648:0}, val={5:0}] [L540] COND TRUE i < N VAL [__builtin_alloca (M * sizeof(int))={3:0}, __builtin_alloca (M * sizeof(int))={7:0}, __builtin_alloca (N * sizeof(int))={-2147483648:0}, __builtin_alloca (N * sizeof(int))={5:0}, best={7:0}, cost={3:0}, i=0, M=1, N=1073741824, size={-2147483648:0}, val={5:0}] [L542] size[i] = __VERIFIER_nondet_int() - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0REQUIRES_VIOLATION CFG has 10 procedures, 94 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 1098.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 11.4ms, AutomataDifference: 230.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 72 SDtfs, 34 SDslu, 34 SDs, 0 SdLazy, 32 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 151.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.1ms SsaConstructionTime, 30.7ms SatisfiabilityAnalysisTime, 399.0ms InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 2 QuantifiedInterpolants, 124 SizeOfPredicates, 5 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr1REQUIRES_VIOLATION CFG has 10 procedures, 94 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 2263.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 1.4ms, AutomataDifference: 846.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 89 SDtfs, 129 SDslu, 303 SDs, 0 SdLazy, 115 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 601.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 325.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.1ms SsaConstructionTime, 42.5ms SatisfiabilityAnalysisTime, 693.5ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 2 QuantifiedInterpolants, 156 SizeOfPredicates, 9 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2021-07-06 08:47:38,109 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...