./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext3/getNumbers1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/memsafety-ext3/getNumbers1-1.c -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 1b1751fe95f9cf655681429038c1cde9e9c074e8 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-906a4fb [2020-10-19 18:24:01,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:24:01,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:24:01,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:24:01,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:24:01,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:24:01,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:24:01,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:24:01,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:24:01,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:24:01,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:24:01,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:24:01,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:24:01,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:24:01,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:24:01,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:24:01,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:24:01,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:24:01,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:24:01,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:24:01,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:24:01,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:24:01,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:24:01,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:24:01,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:24:01,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:24:01,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:24:01,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:24:01,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:24:01,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:24:01,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:24:01,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:24:01,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:24:01,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:24:01,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:24:01,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:24:01,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:24:01,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:24:01,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:24:01,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:24:02,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:24:02,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:24:02,034 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:24:02,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:24:02,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:24:02,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:24:02,038 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:24:02,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:24:02,039 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:24:02,039 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:24:02,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:24:02,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:24:02,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:24:02,040 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:24:02,040 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:24:02,040 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:24:02,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:24:02,041 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:24:02,041 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:24:02,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:24:02,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:24:02,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:24:02,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:24:02,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:24:02,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:24:02,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:24:02,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:24:02,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:24:02,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:24:02,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:24:02,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 1b1751fe95f9cf655681429038c1cde9e9c074e8 [2020-10-19 18:24:02,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:24:02,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:24:02,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:24:02,398 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:24:02,400 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:24:02,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/getNumbers1-1.c [2020-10-19 18:24:02,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b0a28c9/66aa8ddddcaf4470871d7d46c67eb665/FLAG3508577dd [2020-10-19 18:24:02,992 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:24:02,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/getNumbers1-1.c [2020-10-19 18:24:02,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b0a28c9/66aa8ddddcaf4470871d7d46c67eb665/FLAG3508577dd [2020-10-19 18:24:03,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b0a28c9/66aa8ddddcaf4470871d7d46c67eb665 [2020-10-19 18:24:03,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:24:03,404 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:24:03,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:24:03,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:24:03,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:24:03,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:24:03" (1/1) ... [2020-10-19 18:24:03,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5560dab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:03, skipping insertion in model container [2020-10-19 18:24:03,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:24:03" (1/1) ... [2020-10-19 18:24:03,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:24:03,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:24:03,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:24:03,620 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:24:03,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:24:03,648 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:24:03,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:03 WrapperNode [2020-10-19 18:24:03,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:24:03,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:24:03,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:24:03,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:24:03,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:03" (1/1) ... [2020-10-19 18:24:03,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:03" (1/1) ... [2020-10-19 18:24:03,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:03" (1/1) ... [2020-10-19 18:24:03,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:03" (1/1) ... [2020-10-19 18:24:03,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:03" (1/1) ... [2020-10-19 18:24:03,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:03" (1/1) ... [2020-10-19 18:24:03,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:03" (1/1) ... [2020-10-19 18:24:03,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:24:03,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:24:03,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:24:03,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:24:03,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:24:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:24:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:24:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2020-10-19 18:24:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:24:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-19 18:24:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:24:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2020-10-19 18:24:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:24:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:24:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:24:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:24:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:24:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:24:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:24:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:24:04,040 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:24:04,041 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-19 18:24:04,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:24:04 BoogieIcfgContainer [2020-10-19 18:24:04,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:24:04,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:24:04,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:24:04,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:24:04,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:24:03" (1/3) ... [2020-10-19 18:24:04,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139b214b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:24:04, skipping insertion in model container [2020-10-19 18:24:04,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:03" (2/3) ... [2020-10-19 18:24:04,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139b214b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:24:04, skipping insertion in model container [2020-10-19 18:24:04,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:24:04" (3/3) ... [2020-10-19 18:24:04,053 INFO L111 eAbstractionObserver]: Analyzing ICFG getNumbers1-1.c [2020-10-19 18:24:04,067 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:24:04,074 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-19 18:24:04,119 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-19 18:24:04,163 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:24:04,163 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:24:04,163 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:24:04,163 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:24:04,163 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:24:04,164 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:24:04,164 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:24:04,164 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:24:04,182 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-19 18:24:04,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-19 18:24:04,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:04,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:04,210 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:04,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:04,217 INFO L82 PathProgramCache]: Analyzing trace with hash 543879226, now seen corresponding path program 1 times [2020-10-19 18:24:04,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:04,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584877263] [2020-10-19 18:24:04,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:04,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:04,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584877263] [2020-10-19 18:24:04,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:04,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:24:04,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254955346] [2020-10-19 18:24:04,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:24:04,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:04,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:24:04,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:24:04,484 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2020-10-19 18:24:04,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:04,587 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-10-19 18:24:04,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:24:04,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-19 18:24:04,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:04,599 INFO L225 Difference]: With dead ends: 27 [2020-10-19 18:24:04,599 INFO L226 Difference]: Without dead ends: 24 [2020-10-19 18:24:04,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:24:04,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-19 18:24:04,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-19 18:24:04,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-19 18:24:04,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-19 18:24:04,639 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 9 [2020-10-19 18:24:04,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:04,640 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-19 18:24:04,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:24:04,640 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-19 18:24:04,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-19 18:24:04,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:04,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:04,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:24:04,642 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:04,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:04,642 INFO L82 PathProgramCache]: Analyzing trace with hash 543879227, now seen corresponding path program 1 times [2020-10-19 18:24:04,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:04,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094301046] [2020-10-19 18:24:04,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:04,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:04,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094301046] [2020-10-19 18:24:04,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:04,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:24:04,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034701413] [2020-10-19 18:24:04,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:24:04,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:04,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:24:04,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:24:04,778 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 4 states. [2020-10-19 18:24:04,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:04,843 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-10-19 18:24:04,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:24:04,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-19 18:24:04,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:04,845 INFO L225 Difference]: With dead ends: 27 [2020-10-19 18:24:04,845 INFO L226 Difference]: Without dead ends: 27 [2020-10-19 18:24:04,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:24:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-19 18:24:04,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2020-10-19 18:24:04,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-19 18:24:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-19 18:24:04,853 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 9 [2020-10-19 18:24:04,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:04,854 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-19 18:24:04,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:24:04,855 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-19 18:24:04,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-19 18:24:04,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:04,856 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:04,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:24:04,856 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:04,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:04,857 INFO L82 PathProgramCache]: Analyzing trace with hash 2089391026, now seen corresponding path program 1 times [2020-10-19 18:24:04,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:04,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362138589] [2020-10-19 18:24:04,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:04,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:04,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:04,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362138589] [2020-10-19 18:24:04,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061592916] [2020-10-19 18:24:04,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:05,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:24:05,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:05,117 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:24:05,118 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:05,135 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:05,135 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:05,136 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-19 18:24:05,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:05,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:05,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 4 [2020-10-19 18:24:05,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318514710] [2020-10-19 18:24:05,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:24:05,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:05,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:24:05,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:05,157 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 5 states. [2020-10-19 18:24:05,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:05,244 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2020-10-19 18:24:05,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:24:05,245 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-19 18:24:05,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:05,246 INFO L225 Difference]: With dead ends: 30 [2020-10-19 18:24:05,246 INFO L226 Difference]: Without dead ends: 30 [2020-10-19 18:24:05,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:05,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-19 18:24:05,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2020-10-19 18:24:05,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-19 18:24:05,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-19 18:24:05,252 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 12 [2020-10-19 18:24:05,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:05,253 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-19 18:24:05,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:24:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-19 18:24:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-19 18:24:05,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:05,254 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:05,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 18:24:05,469 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:05,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:05,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1912985381, now seen corresponding path program 2 times [2020-10-19 18:24:05,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:05,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840720996] [2020-10-19 18:24:05,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:05,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:05,587 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:05,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840720996] [2020-10-19 18:24:05,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433823281] [2020-10-19 18:24:05,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:05,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 18:24:05,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:05,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-19 18:24:05,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:05,681 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:24:05,682 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:05,689 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:05,690 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:05,690 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-19 18:24:05,708 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:05,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:05,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2020-10-19 18:24:05,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383145072] [2020-10-19 18:24:05,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:24:05,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:05,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:24:05,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:24:05,716 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-10-19 18:24:05,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:05,832 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-10-19 18:24:05,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:24:05,833 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-19 18:24:05,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:05,834 INFO L225 Difference]: With dead ends: 33 [2020-10-19 18:24:05,834 INFO L226 Difference]: Without dead ends: 33 [2020-10-19 18:24:05,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:24:05,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-19 18:24:05,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-10-19 18:24:05,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-19 18:24:05,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-10-19 18:24:05,845 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 15 [2020-10-19 18:24:05,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:05,846 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-10-19 18:24:05,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:24:05,847 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-10-19 18:24:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-19 18:24:05,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:05,848 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:06,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:06,056 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:06,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:06,057 INFO L82 PathProgramCache]: Analyzing trace with hash 173545234, now seen corresponding path program 3 times [2020-10-19 18:24:06,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:06,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349831540] [2020-10-19 18:24:06,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:06,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:06,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349831540] [2020-10-19 18:24:06,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226880763] [2020-10-19 18:24:06,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:06,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-19 18:24:06,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:06,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:24:06,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:06,354 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:24:06,354 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:06,362 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:06,363 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:06,363 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:24:06,464 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-19 18:24:06,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:24:06,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2020-10-19 18:24:06,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632845766] [2020-10-19 18:24:06,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:24:06,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:06,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:24:06,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:06,466 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 6 states. [2020-10-19 18:24:06,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:06,503 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-19 18:24:06,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:24:06,503 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-19 18:24:06,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:06,505 INFO L225 Difference]: With dead ends: 31 [2020-10-19 18:24:06,505 INFO L226 Difference]: Without dead ends: 31 [2020-10-19 18:24:06,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:06,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-19 18:24:06,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2020-10-19 18:24:06,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-19 18:24:06,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-19 18:24:06,511 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 18 [2020-10-19 18:24:06,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:06,512 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-19 18:24:06,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:24:06,512 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-19 18:24:06,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-19 18:24:06,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:06,513 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:06,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:06,726 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:06,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:06,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1378383288, now seen corresponding path program 1 times [2020-10-19 18:24:06,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:06,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864174420] [2020-10-19 18:24:06,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:06,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:06,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:06,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864174420] [2020-10-19 18:24:06,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486905103] [2020-10-19 18:24:06,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:06,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:24:06,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:06,907 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:06,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:06,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 8 [2020-10-19 18:24:06,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263839586] [2020-10-19 18:24:06,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:24:06,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:06,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:24:06,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:24:06,910 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 8 states. [2020-10-19 18:24:07,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:07,000 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-10-19 18:24:07,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:24:07,001 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-19 18:24:07,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:07,002 INFO L225 Difference]: With dead ends: 35 [2020-10-19 18:24:07,002 INFO L226 Difference]: Without dead ends: 35 [2020-10-19 18:24:07,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:24:07,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-19 18:24:07,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2020-10-19 18:24:07,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-19 18:24:07,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-10-19 18:24:07,008 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 23 [2020-10-19 18:24:07,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:07,009 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-10-19 18:24:07,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:24:07,009 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-10-19 18:24:07,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 18:24:07,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:07,011 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:07,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:07,224 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:07,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:07,224 INFO L82 PathProgramCache]: Analyzing trace with hash -149204609, now seen corresponding path program 2 times [2020-10-19 18:24:07,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:07,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429871968] [2020-10-19 18:24:07,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:07,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429871968] [2020-10-19 18:24:07,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193652779] [2020-10-19 18:24:07,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:07,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 18:24:07,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:07,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:24:07,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:07,424 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:07,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:07,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 9 [2020-10-19 18:24:07,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934753144] [2020-10-19 18:24:07,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:24:07,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:07,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:24:07,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:24:07,426 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 9 states. [2020-10-19 18:24:07,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:07,521 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-10-19 18:24:07,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:24:07,522 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-10-19 18:24:07,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:07,523 INFO L225 Difference]: With dead ends: 38 [2020-10-19 18:24:07,523 INFO L226 Difference]: Without dead ends: 38 [2020-10-19 18:24:07,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:24:07,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-19 18:24:07,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-10-19 18:24:07,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-19 18:24:07,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-10-19 18:24:07,529 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 26 [2020-10-19 18:24:07,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:07,529 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-10-19 18:24:07,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:24:07,530 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-10-19 18:24:07,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-19 18:24:07,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:07,531 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:07,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-19 18:24:07,743 INFO L429 AbstractCegarLoop]: === Iteration 8 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:07,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:07,743 INFO L82 PathProgramCache]: Analyzing trace with hash -578344216, now seen corresponding path program 3 times [2020-10-19 18:24:07,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:07,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065534417] [2020-10-19 18:24:07,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,884 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:07,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065534417] [2020-10-19 18:24:07,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656177998] [2020-10-19 18:24:07,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:07,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-10-19 18:24:07,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:07,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:24:07,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:07,982 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:07,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:07,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 10 [2020-10-19 18:24:07,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687398158] [2020-10-19 18:24:07,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:24:07,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:07,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:24:07,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:24:07,985 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 10 states. [2020-10-19 18:24:08,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:08,074 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-10-19 18:24:08,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:24:08,074 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-19 18:24:08,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:08,075 INFO L225 Difference]: With dead ends: 41 [2020-10-19 18:24:08,075 INFO L226 Difference]: Without dead ends: 41 [2020-10-19 18:24:08,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:08,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-19 18:24:08,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-10-19 18:24:08,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-19 18:24:08,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-19 18:24:08,080 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 29 [2020-10-19 18:24:08,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:08,080 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-19 18:24:08,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:24:08,080 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-19 18:24:08,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-19 18:24:08,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:08,081 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:08,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:08,292 INFO L429 AbstractCegarLoop]: === Iteration 9 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:08,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:08,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1041263839, now seen corresponding path program 4 times [2020-10-19 18:24:08,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:08,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663095269] [2020-10-19 18:24:08,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:08,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:08,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:08,413 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:08,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663095269] [2020-10-19 18:24:08,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325570151] [2020-10-19 18:24:08,413 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:08,469 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-19 18:24:08,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:08,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:24:08,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:08,495 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:08,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:08,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 11 [2020-10-19 18:24:08,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900044734] [2020-10-19 18:24:08,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-19 18:24:08,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:08,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-19 18:24:08,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:08,497 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 11 states. [2020-10-19 18:24:08,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:08,597 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-10-19 18:24:08,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:24:08,598 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-10-19 18:24:08,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:08,599 INFO L225 Difference]: With dead ends: 44 [2020-10-19 18:24:08,599 INFO L226 Difference]: Without dead ends: 44 [2020-10-19 18:24:08,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:24:08,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-19 18:24:08,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-10-19 18:24:08,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-19 18:24:08,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-19 18:24:08,603 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 32 [2020-10-19 18:24:08,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:08,604 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-19 18:24:08,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-19 18:24:08,604 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-19 18:24:08,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-19 18:24:08,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:08,605 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:08,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:08,816 INFO L429 AbstractCegarLoop]: === Iteration 10 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:08,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:08,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1122227080, now seen corresponding path program 5 times [2020-10-19 18:24:08,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:08,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030436353] [2020-10-19 18:24:08,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:08,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:08,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:08,945 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:08,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030436353] [2020-10-19 18:24:08,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039083666] [2020-10-19 18:24:08,946 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:09,013 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2020-10-19 18:24:09,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:09,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:24:09,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:09,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:09,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 12 [2020-10-19 18:24:09,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019606554] [2020-10-19 18:24:09,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:24:09,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:09,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:24:09,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:24:09,043 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 12 states. [2020-10-19 18:24:09,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:09,151 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-10-19 18:24:09,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 18:24:09,152 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-10-19 18:24:09,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:09,153 INFO L225 Difference]: With dead ends: 47 [2020-10-19 18:24:09,153 INFO L226 Difference]: Without dead ends: 47 [2020-10-19 18:24:09,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:24:09,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-19 18:24:09,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-10-19 18:24:09,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-19 18:24:09,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-19 18:24:09,158 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 35 [2020-10-19 18:24:09,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:09,159 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-19 18:24:09,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:24:09,159 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-19 18:24:09,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-19 18:24:09,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:09,160 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:09,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-19 18:24:09,371 INFO L429 AbstractCegarLoop]: === Iteration 11 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:09,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:09,372 INFO L82 PathProgramCache]: Analyzing trace with hash -673480641, now seen corresponding path program 6 times [2020-10-19 18:24:09,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:09,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095382272] [2020-10-19 18:24:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:09,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:09,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:09,548 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:09,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095382272] [2020-10-19 18:24:09,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690345843] [2020-10-19 18:24:09,548 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:09,635 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2020-10-19 18:24:09,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:09,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:24:09,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:09,666 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:09,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:09,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 13 [2020-10-19 18:24:09,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250604906] [2020-10-19 18:24:09,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-19 18:24:09,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:09,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-19 18:24:09,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:24:09,668 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 13 states. [2020-10-19 18:24:09,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:09,795 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-10-19 18:24:09,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:24:09,796 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2020-10-19 18:24:09,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:09,797 INFO L225 Difference]: With dead ends: 50 [2020-10-19 18:24:09,797 INFO L226 Difference]: Without dead ends: 50 [2020-10-19 18:24:09,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-19 18:24:09,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-19 18:24:09,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-10-19 18:24:09,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-19 18:24:09,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-10-19 18:24:09,803 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 38 [2020-10-19 18:24:09,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:09,803 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-10-19 18:24:09,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-19 18:24:09,803 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-10-19 18:24:09,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-19 18:24:09,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:09,804 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:10,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:10,014 INFO L429 AbstractCegarLoop]: === Iteration 12 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:10,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:10,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1510442024, now seen corresponding path program 7 times [2020-10-19 18:24:10,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:10,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233925144] [2020-10-19 18:24:10,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,178 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:10,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233925144] [2020-10-19 18:24:10,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277589932] [2020-10-19 18:24:10,178 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:24:10,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:10,295 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:10,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:10,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 14 [2020-10-19 18:24:10,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124250639] [2020-10-19 18:24:10,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-19 18:24:10,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:10,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-19 18:24:10,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-10-19 18:24:10,298 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 14 states. [2020-10-19 18:24:10,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:10,432 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-10-19 18:24:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 18:24:10,433 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-19 18:24:10,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:10,434 INFO L225 Difference]: With dead ends: 51 [2020-10-19 18:24:10,434 INFO L226 Difference]: Without dead ends: 51 [2020-10-19 18:24:10,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:24:10,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-19 18:24:10,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-19 18:24:10,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-19 18:24:10,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-19 18:24:10,439 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 41 [2020-10-19 18:24:10,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:10,440 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-19 18:24:10,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-19 18:24:10,440 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-19 18:24:10,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-19 18:24:10,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:10,441 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:10,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:10,650 INFO L429 AbstractCegarLoop]: === Iteration 13 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:10,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:10,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1709012065, now seen corresponding path program 8 times [2020-10-19 18:24:10,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:10,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833775355] [2020-10-19 18:24:10,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:24:10,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:24:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:24:10,691 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:24:10,716 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:24:10,716 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:24:10,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 18:24:10,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:24:10 BoogieIcfgContainer [2020-10-19 18:24:10,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:24:10,757 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:24:10,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:24:10,758 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:24:10,759 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:24:04" (3/4) ... [2020-10-19 18:24:10,761 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 18:24:10,828 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:24:10,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:24:10,834 INFO L168 Benchmark]: Toolchain (without parser) took 7434.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.6 MB). Free memory was 958.6 MB in the beginning and 886.9 MB in the end (delta: 71.7 MB). Peak memory consumption was 267.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:10,835 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:24:10,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.65 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:10,840 INFO L168 Benchmark]: Boogie Preprocessor took 94.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:10,841 INFO L168 Benchmark]: RCFGBuilder took 298.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:10,841 INFO L168 Benchmark]: TraceAbstraction took 6712.40 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 886.9 MB in the end (delta: 206.7 MB). Peak memory consumption was 279.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:10,842 INFO L168 Benchmark]: Witness Printer took 71.45 ms. Allocated memory is still 1.2 GB. Free memory was 886.9 MB in the beginning and 886.9 MB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2020-10-19 18:24:10,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 242.65 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 94.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 298.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6712.40 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 886.9 MB in the end (delta: 206.7 MB). Peak memory consumption was 279.5 MB. Max. memory is 11.5 GB. * Witness Printer took 71.45 ms. Allocated memory is still 1.2 GB. Free memory was 886.9 MB in the beginning and 886.9 MB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L19] CALL, EXPR getNumbers() [L8] int *array = alloca(10 * sizeof(int)); [L10] int i = 0; VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=0] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=0] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=0] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=1] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=1] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=1] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=2] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=2] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=2] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=3] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=3] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=3] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=4] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=4] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=4] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=5] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=5] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=5] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=6] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=6] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=6] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=7] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=7] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=7] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=8] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=8] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=8] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=9] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=9] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=9] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=10] [L10] COND FALSE !(i < 10) VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=10] [L14] return array; [L19] RET, EXPR getNumbers() VAL [getNumbers()={11:0}] [L19] int *numbers = getNumbers(); [L21] int i = 0; VAL [i=0, numbers={11:0}] [L21] COND TRUE i < 10 [L22] numbers + i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.5s, OverallIterations: 13, TraceHistogramMax: 10, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 235 SDtfs, 115 SDslu, 1005 SDs, 0 SdLazy, 708 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 383 GetRequests, 289 SyntacticMatches, 4 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 16 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 600 NumberOfCodeBlocks, 594 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 48536 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1247 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 22 InterpolantComputations, 3 PerfectInterpolantSequences, 15/846 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! Received shutdown request...