./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/list-properties/simple-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 30f4e4ab 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/list-properties/simple-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d0cf6b9a1a7372eb466349e319faa44cf865bdad ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:48:11,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:48:11,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:48:11,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:48:11,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:48:11,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:48:11,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:48:11,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:48:11,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:48:11,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:48:11,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:48:11,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:48:11,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:48:11,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:48:11,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:48:11,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:48:11,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:48:11,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:48:11,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:48:11,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:48:11,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:48:11,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:48:11,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:48:11,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:48:11,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:48:11,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:48:11,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:48:11,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:48:11,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:48:11,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:48:11,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:48:11,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:48:11,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:48:11,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:48:11,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:48:11,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:48:11,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:48:11,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:48:11,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:48:11,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:48:11,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:48:11,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-28 02:48:11,628 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:48:11,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:48:11,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:48:11,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:48:11,636 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:48:11,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:48:11,637 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:48:11,637 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:48:11,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:48:11,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:48:11,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:48:11,639 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:48:11,640 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:48:11,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:48:11,642 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:48:11,642 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:48:11,643 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:48:11,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:48:11,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:48:11,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:48:11,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:48:11,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:48:11,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:48:11,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:48:11,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:48:11,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:48:11,646 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-memcleanup) ) 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 -> d0cf6b9a1a7372eb466349e319faa44cf865bdad [2019-11-28 02:48:12,002 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:48:12,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:48:12,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:48:12,024 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:48:12,025 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:48:12,026 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/simple-1.i [2019-11-28 02:48:12,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f0725b7/b97d6bacde9c4119bceecf7a14240174/FLAG17b9eca88 [2019-11-28 02:48:12,619 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:48:12,620 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/simple-1.i [2019-11-28 02:48:12,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f0725b7/b97d6bacde9c4119bceecf7a14240174/FLAG17b9eca88 [2019-11-28 02:48:12,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f0725b7/b97d6bacde9c4119bceecf7a14240174 [2019-11-28 02:48:12,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:48:12,919 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:48:12,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:12,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:48:12,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:48:12,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:12" (1/1) ... [2019-11-28 02:48:12,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332255e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:12, skipping insertion in model container [2019-11-28 02:48:12,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:48:12" (1/1) ... [2019-11-28 02:48:12,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:48:12,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:48:13,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:13,385 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:48:13,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:48:13,504 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:48:13,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:13 WrapperNode [2019-11-28 02:48:13,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:48:13,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:48:13,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:48:13,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:48:13,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:13" (1/1) ... [2019-11-28 02:48:13,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:13" (1/1) ... [2019-11-28 02:48:13,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:13" (1/1) ... [2019-11-28 02:48:13,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:13" (1/1) ... [2019-11-28 02:48:13,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:13" (1/1) ... [2019-11-28 02:48:13,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:13" (1/1) ... [2019-11-28 02:48:13,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:13" (1/1) ... [2019-11-28 02:48:13,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:48:13,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:48:13,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:48:13,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:48:13,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:13" (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 [2019-11-28 02:48:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:48:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:48:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 02:48:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 02:48:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 02:48:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 02:48:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 02:48:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-28 02:48:13,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:48:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 02:48:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:48:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 02:48:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 02:48:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 02:48:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 02:48:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 02:48:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 02:48:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 02:48:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 02:48:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 02:48:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 02:48:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 02:48:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 02:48:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 02:48:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 02:48:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 02:48:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 02:48:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 02:48:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 02:48:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 02:48:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 02:48:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 02:48:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 02:48:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 02:48:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 02:48:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 02:48:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 02:48:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 02:48:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 02:48:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 02:48:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 02:48:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 02:48:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 02:48:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 02:48:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 02:48:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 02:48:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 02:48:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 02:48:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 02:48:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 02:48:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 02:48:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 02:48:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 02:48:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 02:48:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 02:48:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 02:48:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 02:48:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 02:48:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 02:48:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 02:48:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 02:48:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 02:48:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 02:48:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 02:48:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 02:48:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 02:48:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:48:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:48:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 02:48:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:48:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 02:48:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 02:48:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 02:48:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 02:48:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 02:48:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 02:48:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 02:48:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 02:48:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 02:48:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 02:48:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 02:48:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 02:48:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 02:48:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 02:48:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 02:48:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 02:48:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 02:48:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 02:48:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 02:48:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 02:48:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 02:48:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 02:48:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 02:48:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 02:48:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 02:48:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 02:48:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 02:48:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 02:48:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 02:48:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 02:48:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 02:48:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 02:48:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 02:48:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 02:48:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 02:48:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 02:48:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 02:48:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 02:48:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 02:48:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 02:48:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 02:48:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 02:48:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 02:48:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 02:48:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 02:48:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 02:48:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 02:48:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 02:48:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-28 02:48:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:48:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:48:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 02:48:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 02:48:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 02:48:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 02:48:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:48:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:48:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:48:14,067 INFO L712 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-28 02:48:14,274 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:48:14,276 INFO L297 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-28 02:48:14,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:48:14 BoogieIcfgContainer [2019-11-28 02:48:14,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:48:14,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:48:14,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:48:14,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:48:14,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:48:12" (1/3) ... [2019-11-28 02:48:14,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a5b8ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:48:14, skipping insertion in model container [2019-11-28 02:48:14,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:48:13" (2/3) ... [2019-11-28 02:48:14,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a5b8ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:48:14, skipping insertion in model container [2019-11-28 02:48:14,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:48:14" (3/3) ... [2019-11-28 02:48:14,294 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-1.i [2019-11-28 02:48:14,304 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:48:14,312 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2019-11-28 02:48:14,325 INFO L249 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2019-11-28 02:48:14,343 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:48:14,344 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:48:14,344 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:48:14,344 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:48:14,344 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:48:14,345 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:48:14,345 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:48:14,345 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:48:14,360 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-11-28 02:48:14,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 02:48:14,370 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:14,371 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:14,372 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:14,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:14,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1889428658, now seen corresponding path program 1 times [2019-11-28 02:48:14,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:48:14,388 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492872353] [2019-11-28 02:48:14,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:48:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:14,601 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492872353] [2019-11-28 02:48:14,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:14,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:48:14,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638072878] [2019-11-28 02:48:14,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:48:14,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:48:14,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:48:14,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:48:14,634 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 4 states. [2019-11-28 02:48:14,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:14,870 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2019-11-28 02:48:14,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:48:14,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-28 02:48:14,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:14,881 INFO L225 Difference]: With dead ends: 52 [2019-11-28 02:48:14,881 INFO L226 Difference]: Without dead ends: 45 [2019-11-28 02:48:14,883 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:48:14,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-28 02:48:14,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-11-28 02:48:14,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-28 02:48:14,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2019-11-28 02:48:14,926 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 9 [2019-11-28 02:48:14,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:14,926 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2019-11-28 02:48:14,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:48:14,927 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2019-11-28 02:48:14,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 02:48:14,927 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:14,927 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:14,928 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:14,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:14,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1889428659, now seen corresponding path program 1 times [2019-11-28 02:48:14,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:48:14,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299810884] [2019-11-28 02:48:14,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:48:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:15,024 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299810884] [2019-11-28 02:48:15,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:15,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:48:15,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503056292] [2019-11-28 02:48:15,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:48:15,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:48:15,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:48:15,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:48:15,030 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 4 states. [2019-11-28 02:48:15,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:15,161 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2019-11-28 02:48:15,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:48:15,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-28 02:48:15,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:15,163 INFO L225 Difference]: With dead ends: 44 [2019-11-28 02:48:15,163 INFO L226 Difference]: Without dead ends: 44 [2019-11-28 02:48:15,164 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:48:15,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-28 02:48:15,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-11-28 02:48:15,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-28 02:48:15,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2019-11-28 02:48:15,170 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 9 [2019-11-28 02:48:15,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:15,171 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2019-11-28 02:48:15,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:48:15,171 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2019-11-28 02:48:15,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 02:48:15,172 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:15,172 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:15,173 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:15,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:15,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1872231771, now seen corresponding path program 1 times [2019-11-28 02:48:15,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:48:15,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104716531] [2019-11-28 02:48:15,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:48:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:15,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:15,288 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104716531] [2019-11-28 02:48:15,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:15,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 02:48:15,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190566645] [2019-11-28 02:48:15,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:48:15,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:48:15,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:48:15,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:48:15,291 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 5 states. [2019-11-28 02:48:15,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:15,502 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2019-11-28 02:48:15,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 02:48:15,505 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-28 02:48:15,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:15,507 INFO L225 Difference]: With dead ends: 75 [2019-11-28 02:48:15,507 INFO L226 Difference]: Without dead ends: 75 [2019-11-28 02:48:15,508 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:48:15,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-11-28 02:48:15,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2019-11-28 02:48:15,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-28 02:48:15,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2019-11-28 02:48:15,516 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 12 [2019-11-28 02:48:15,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:15,516 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2019-11-28 02:48:15,516 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:48:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2019-11-28 02:48:15,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 02:48:15,517 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:15,518 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:15,518 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:15,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:15,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1872231770, now seen corresponding path program 1 times [2019-11-28 02:48:15,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:48:15,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314548717] [2019-11-28 02:48:15,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:48:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:15,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:15,639 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314548717] [2019-11-28 02:48:15,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:15,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 02:48:15,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880640971] [2019-11-28 02:48:15,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:48:15,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:48:15,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:48:15,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:48:15,642 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 5 states. [2019-11-28 02:48:15,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:15,796 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2019-11-28 02:48:15,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:48:15,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-28 02:48:15,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:15,798 INFO L225 Difference]: With dead ends: 64 [2019-11-28 02:48:15,798 INFO L226 Difference]: Without dead ends: 64 [2019-11-28 02:48:15,799 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:48:15,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-11-28 02:48:15,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 56. [2019-11-28 02:48:15,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-28 02:48:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2019-11-28 02:48:15,812 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 12 [2019-11-28 02:48:15,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:15,813 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2019-11-28 02:48:15,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:48:15,813 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2019-11-28 02:48:15,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 02:48:15,815 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:15,815 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:15,816 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:15,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:15,816 INFO L82 PathProgramCache]: Analyzing trace with hash -176116736, now seen corresponding path program 1 times [2019-11-28 02:48:15,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:48:15,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545202373] [2019-11-28 02:48:15,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:48:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:15,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:15,928 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545202373] [2019-11-28 02:48:15,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:15,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 02:48:15,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269296124] [2019-11-28 02:48:15,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:48:15,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:48:15,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:48:15,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:48:15,930 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand 6 states. [2019-11-28 02:48:16,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:16,073 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2019-11-28 02:48:16,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:48:16,074 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-28 02:48:16,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:16,075 INFO L225 Difference]: With dead ends: 61 [2019-11-28 02:48:16,075 INFO L226 Difference]: Without dead ends: 61 [2019-11-28 02:48:16,075 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:48:16,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-28 02:48:16,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2019-11-28 02:48:16,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-28 02:48:16,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2019-11-28 02:48:16,081 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 17 [2019-11-28 02:48:16,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:16,082 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2019-11-28 02:48:16,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:48:16,082 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2019-11-28 02:48:16,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 02:48:16,083 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:16,083 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:16,084 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:16,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:16,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1164610614, now seen corresponding path program 1 times [2019-11-28 02:48:16,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:48:16,085 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986315434] [2019-11-28 02:48:16,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:48:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:16,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:16,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986315434] [2019-11-28 02:48:16,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:16,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-28 02:48:16,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777165718] [2019-11-28 02:48:16,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 02:48:16,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:48:16,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 02:48:16,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:48:16,209 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 8 states. [2019-11-28 02:48:16,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:16,430 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2019-11-28 02:48:16,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 02:48:16,434 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2019-11-28 02:48:16,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:16,435 INFO L225 Difference]: With dead ends: 77 [2019-11-28 02:48:16,435 INFO L226 Difference]: Without dead ends: 77 [2019-11-28 02:48:16,436 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-28 02:48:16,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-28 02:48:16,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 57. [2019-11-28 02:48:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-11-28 02:48:16,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2019-11-28 02:48:16,442 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 18 [2019-11-28 02:48:16,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:16,443 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2019-11-28 02:48:16,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 02:48:16,443 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2019-11-28 02:48:16,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 02:48:16,444 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:16,444 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:16,444 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:16,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:16,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1067762024, now seen corresponding path program 1 times [2019-11-28 02:48:16,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:48:16,445 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855275085] [2019-11-28 02:48:16,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:48:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:16,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:16,567 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855275085] [2019-11-28 02:48:16,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:16,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 02:48:16,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506328924] [2019-11-28 02:48:16,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 02:48:16,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:48:16,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 02:48:16,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:48:16,570 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 7 states. [2019-11-28 02:48:16,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:16,837 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2019-11-28 02:48:16,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 02:48:16,839 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-11-28 02:48:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:16,840 INFO L225 Difference]: With dead ends: 69 [2019-11-28 02:48:16,840 INFO L226 Difference]: Without dead ends: 69 [2019-11-28 02:48:16,840 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-28 02:48:16,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-28 02:48:16,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 55. [2019-11-28 02:48:16,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-28 02:48:16,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2019-11-28 02:48:16,846 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 20 [2019-11-28 02:48:16,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:16,847 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2019-11-28 02:48:16,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 02:48:16,847 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2019-11-28 02:48:16,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 02:48:16,848 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:16,848 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:16,848 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:16,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:16,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1067762023, now seen corresponding path program 1 times [2019-11-28 02:48:16,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:48:16,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093486525] [2019-11-28 02:48:16,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:48:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:16,987 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093486525] [2019-11-28 02:48:16,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:48:16,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 02:48:16,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177924438] [2019-11-28 02:48:16,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 02:48:16,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:48:16,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 02:48:16,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:48:16,989 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 7 states. [2019-11-28 02:48:17,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:17,376 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2019-11-28 02:48:17,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 02:48:17,377 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-11-28 02:48:17,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:17,378 INFO L225 Difference]: With dead ends: 65 [2019-11-28 02:48:17,378 INFO L226 Difference]: Without dead ends: 65 [2019-11-28 02:48:17,378 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-28 02:48:17,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-11-28 02:48:17,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 45. [2019-11-28 02:48:17,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-28 02:48:17,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2019-11-28 02:48:17,384 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 20 [2019-11-28 02:48:17,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:17,385 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2019-11-28 02:48:17,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 02:48:17,385 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2019-11-28 02:48:17,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 02:48:17,386 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:17,387 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:17,387 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:17,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:17,388 INFO L82 PathProgramCache]: Analyzing trace with hash -164132145, now seen corresponding path program 1 times [2019-11-28 02:48:17,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:48:17,389 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610003290] [2019-11-28 02:48:17,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:48:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:17,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:17,555 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610003290] [2019-11-28 02:48:17,557 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086252534] [2019-11-28 02:48:17,557 INFO L94 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 [2019-11-28 02:48:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:48:17,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-28 02:48:17,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:48:17,810 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-28 02:48:17,810 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:17,817 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:17,821 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-28 02:48:17,821 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:17,828 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:17,829 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:17,829 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2019-11-28 02:48:17,906 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-28 02:48:17,907 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:17,916 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:17,919 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-28 02:48:17,920 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 02:48:17,923 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:48:17,924 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:48:17,924 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2019-11-28 02:48:17,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:48:17,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:48:17,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 12 [2019-11-28 02:48:17,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312783083] [2019-11-28 02:48:17,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-28 02:48:17,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:48:17,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-28 02:48:17,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-11-28 02:48:17,929 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 12 states. [2019-11-28 02:48:18,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:48:18,212 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2019-11-28 02:48:18,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 02:48:18,213 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2019-11-28 02:48:18,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:48:18,214 INFO L225 Difference]: With dead ends: 61 [2019-11-28 02:48:18,214 INFO L226 Difference]: Without dead ends: 61 [2019-11-28 02:48:18,214 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2019-11-28 02:48:18,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-28 02:48:18,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2019-11-28 02:48:18,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-28 02:48:18,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2019-11-28 02:48:18,219 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 21 [2019-11-28 02:48:18,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:48:18,219 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2019-11-28 02:48:18,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-28 02:48:18,219 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2019-11-28 02:48:18,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 02:48:18,220 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:48:18,220 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:48:18,425 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:48:18,425 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-28 02:48:18,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:48:18,426 INFO L82 PathProgramCache]: Analyzing trace with hash -793130470, now seen corresponding path program 1 times [2019-11-28 02:48:18,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:48:18,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582280722] [2019-11-28 02:48:18,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:48:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:48:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:48:18,509 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:48:18,510 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:48:18,533 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 02:48:18,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:48:18 BoogieIcfgContainer [2019-11-28 02:48:18,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:48:18,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:48:18,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:48:18,557 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:48:18,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:48:14" (3/4) ... [2019-11-28 02:48:18,561 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 02:48:18,566 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 02:48:18,609 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:48:18,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:48:18,611 INFO L168 Benchmark]: Toolchain (without parser) took 5691.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -97.9 MB). Peak memory consumption was 92.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:18,612 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:48:18,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -140.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:18,613 INFO L168 Benchmark]: Boogie Preprocessor took 95.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:18,614 INFO L168 Benchmark]: RCFGBuilder took 677.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:18,615 INFO L168 Benchmark]: TraceAbstraction took 4274.21 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 76.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -13.8 MB). Peak memory consumption was 62.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:48:18,615 INFO L168 Benchmark]: Witness Printer took 52.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:48:18,618 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 584.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -140.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 95.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 677.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4274.21 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 76.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -13.8 MB). Peak memory consumption was 62.2 MB. Max. memory is 11.5 GB. * Witness Printer took 52.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 520]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}] [L522] COND FALSE !(a == 0) VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}] [L523] List t; [L524] List p = a; VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L525] a->h = 2 VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L526] COND FALSE !(__VERIFIER_nondet_int()) [L533] p->h = 2 VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L534] p->n = 0 VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L535] p = a VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L536] COND TRUE p!=0 VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L537] EXPR p->h VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=2] [L537] COND FALSE !(p->h != 2) [L540] EXPR p->n VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->n={0:0}] [L540] p = p->n [L536] COND FALSE !(p!=0) VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={0:0}] [L542] return 0; VAL [\result=0, a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 69 locations, 18 error locations. Result: UNSAFE, OverallTime: 4.1s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 241 SDtfs, 540 SDslu, 449 SDs, 0 SdLazy, 1086 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=6, 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, 9 MinimizatonAttempts, 107 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 14255 SizeOfPredicates, 11 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...