./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_14-2.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/locks/test_locks_14-2.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 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -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/locks/test_locks_14-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:23:35,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:23:35,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:23:35,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:23:35,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:23:35,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:23:35,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:23:35,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:23:35,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:23:35,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:23:35,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:23:35,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:23:35,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:23:35,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:23:35,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:23:35,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:23:35,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:23:35,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:23:35,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:23:35,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:23:35,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:23:35,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:23:35,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:23:35,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:23:35,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:23:35,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:23:35,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:23:35,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:23:35,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:23:35,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:23:35,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:23:35,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:23:35,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:23:35,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:23:35,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:23:35,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:23:35,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:23:35,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:23:35,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:23:35,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:23:35,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:23:35,857 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:23:35,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:23:35,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:23:35,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:23:35,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:23:35,883 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:23:35,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:23:35,884 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:23:35,884 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:23:35,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:23:35,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:23:35,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:23:35,885 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:23:35,885 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:23:35,885 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:23:35,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:23:35,886 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:23:35,886 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:23:35,886 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:23:35,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:23:35,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:23:35,887 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:23:35,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:23:35,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:23:35,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:23:35,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:23:35,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:23:35,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:23:35,889 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:23:35,890 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 -> 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 [2020-10-19 18:23:36,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:23:36,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:23:36,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:23:36,269 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:23:36,269 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:23:36,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_14-2.c [2020-10-19 18:23:36,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86dbd429/3a6ec36ce01c4b5586c3792847a2d093/FLAGb1119467a [2020-10-19 18:23:36,791 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:23:36,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c [2020-10-19 18:23:36,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86dbd429/3a6ec36ce01c4b5586c3792847a2d093/FLAGb1119467a [2020-10-19 18:23:37,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86dbd429/3a6ec36ce01c4b5586c3792847a2d093 [2020-10-19 18:23:37,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:23:37,244 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:23:37,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:23:37,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:23:37,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:23:37,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:23:37" (1/1) ... [2020-10-19 18:23:37,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46086f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:37, skipping insertion in model container [2020-10-19 18:23:37,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:23:37" (1/1) ... [2020-10-19 18:23:37,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:23:37,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:23:37,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:23:37,630 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:23:37,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:23:37,772 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:23:37,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:37 WrapperNode [2020-10-19 18:23:37,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:23:37,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:23:37,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:23:37,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:23:37,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:37" (1/1) ... [2020-10-19 18:23:37,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:37" (1/1) ... [2020-10-19 18:23:37,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:37" (1/1) ... [2020-10-19 18:23:37,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:37" (1/1) ... [2020-10-19 18:23:37,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:37" (1/1) ... [2020-10-19 18:23:37,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:37" (1/1) ... [2020-10-19 18:23:37,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:37" (1/1) ... [2020-10-19 18:23:37,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:23:37,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:23:37,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:23:37,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:23:37,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:37" (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 18:23:37,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:23:37,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:23:37,943 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:23:37,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:23:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:23:37,945 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:23:37,945 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:23:37,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:23:37,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:23:37,947 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:23:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:23:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:23:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:23:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:23:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:23:37,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:23:38,439 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:23:38,440 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-19 18:23:38,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:23:38 BoogieIcfgContainer [2020-10-19 18:23:38,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:23:38,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:23:38,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:23:38,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:23:38,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:23:37" (1/3) ... [2020-10-19 18:23:38,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bfa372d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:23:38, skipping insertion in model container [2020-10-19 18:23:38,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:37" (2/3) ... [2020-10-19 18:23:38,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bfa372d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:23:38, skipping insertion in model container [2020-10-19 18:23:38,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:23:38" (3/3) ... [2020-10-19 18:23:38,453 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2020-10-19 18:23:38,478 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:23:38,489 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-19 18:23:38,502 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-19 18:23:38,523 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:23:38,523 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:23:38,523 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:23:38,524 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:23:38,524 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:23:38,524 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:23:38,525 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:23:38,525 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:23:38,543 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2020-10-19 18:23:38,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-19 18:23:38,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:38,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:23:38,555 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:38,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:38,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1491239536, now seen corresponding path program 1 times [2020-10-19 18:23:38,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:38,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248237680] [2020-10-19 18:23:38,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:38,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:38,812 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 18:23:38,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248237680] [2020-10-19 18:23:38,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:38,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:23:38,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590664543] [2020-10-19 18:23:38,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:23:38,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:38,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:23:38,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:23:38,839 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2020-10-19 18:23:38,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:38,896 INFO L93 Difference]: Finished difference Result 58 states and 99 transitions. [2020-10-19 18:23:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:23:38,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-19 18:23:38,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:38,911 INFO L225 Difference]: With dead ends: 58 [2020-10-19 18:23:38,911 INFO L226 Difference]: Without dead ends: 53 [2020-10-19 18:23:38,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:23:38,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-19 18:23:38,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-19 18:23:38,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-19 18:23:38,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 94 transitions. [2020-10-19 18:23:38,973 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 94 transitions. Word has length 9 [2020-10-19 18:23:38,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:38,974 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 94 transitions. [2020-10-19 18:23:38,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:23:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 94 transitions. [2020-10-19 18:23:38,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 18:23:38,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:38,975 INFO L422 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, 1, 1, 1, 1] [2020-10-19 18:23:38,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:23:38,976 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:38,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:38,976 INFO L82 PathProgramCache]: Analyzing trace with hash -590778745, now seen corresponding path program 1 times [2020-10-19 18:23:38,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:38,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384643835] [2020-10-19 18:23:38,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:39,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:39,207 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 18:23:39,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384643835] [2020-10-19 18:23:39,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:39,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:23:39,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787645813] [2020-10-19 18:23:39,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:23:39,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:39,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:23:39,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:23:39,212 INFO L87 Difference]: Start difference. First operand 53 states and 94 transitions. Second operand 4 states. [2020-10-19 18:23:39,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:39,485 INFO L93 Difference]: Finished difference Result 97 states and 177 transitions. [2020-10-19 18:23:39,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:23:39,486 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-19 18:23:39,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:39,490 INFO L225 Difference]: With dead ends: 97 [2020-10-19 18:23:39,490 INFO L226 Difference]: Without dead ends: 97 [2020-10-19 18:23:39,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:23:39,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-19 18:23:39,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2020-10-19 18:23:39,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-19 18:23:39,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 176 transitions. [2020-10-19 18:23:39,511 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 176 transitions. Word has length 26 [2020-10-19 18:23:39,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:39,512 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 176 transitions. [2020-10-19 18:23:39,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:23:39,512 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 176 transitions. [2020-10-19 18:23:39,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 18:23:39,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:39,514 INFO L422 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, 1, 1, 1, 1] [2020-10-19 18:23:39,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:23:39,515 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:39,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:39,516 INFO L82 PathProgramCache]: Analyzing trace with hash -591001697, now seen corresponding path program 1 times [2020-10-19 18:23:39,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:39,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053889605] [2020-10-19 18:23:39,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:39,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:39,661 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 18:23:39,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053889605] [2020-10-19 18:23:39,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:39,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:23:39,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854177700] [2020-10-19 18:23:39,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:23:39,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:39,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:23:39,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:23:39,671 INFO L87 Difference]: Start difference. First operand 96 states and 176 transitions. Second operand 4 states. [2020-10-19 18:23:39,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:39,944 INFO L93 Difference]: Finished difference Result 97 states and 177 transitions. [2020-10-19 18:23:39,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:23:39,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-19 18:23:39,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:39,947 INFO L225 Difference]: With dead ends: 97 [2020-10-19 18:23:39,947 INFO L226 Difference]: Without dead ends: 97 [2020-10-19 18:23:39,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:23:39,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-19 18:23:39,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-19 18:23:39,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-19 18:23:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 177 transitions. [2020-10-19 18:23:39,959 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 177 transitions. Word has length 26 [2020-10-19 18:23:39,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:39,960 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 177 transitions. [2020-10-19 18:23:39,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:23:39,960 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 177 transitions. [2020-10-19 18:23:39,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 18:23:39,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:39,961 INFO L422 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, 1, 1, 1, 1] [2020-10-19 18:23:39,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:23:39,962 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:39,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:39,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1710043845, now seen corresponding path program 1 times [2020-10-19 18:23:39,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:39,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878751729] [2020-10-19 18:23:39,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:23:40,000 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:23:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:23:40,027 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:23:40,089 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:23:40,090 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:23:40,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:23:40,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:23:40 BoogieIcfgContainer [2020-10-19 18:23:40,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:23:40,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:23:40,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:23:40,163 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:23:40,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:23:38" (3/4) ... [2020-10-19 18:23:40,168 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:23:40,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:23:40,171 INFO L168 Benchmark]: Toolchain (without parser) took 2931.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.9 MB in the beginning and 980.0 MB in the end (delta: -28.1 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:40,172 INFO L168 Benchmark]: CDTParser took 0.33 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 18:23:40,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:40,174 INFO L168 Benchmark]: Boogie Preprocessor took 82.75 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:40,175 INFO L168 Benchmark]: RCFGBuilder took 586.84 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:40,176 INFO L168 Benchmark]: TraceAbstraction took 1717.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.0 MB in the end (delta: 120.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:40,177 INFO L168 Benchmark]: Witness Printer took 5.77 ms. Allocated memory is still 1.2 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:23:40,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 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 527.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 82.75 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 586.84 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1717.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.0 MB in the end (delta: 120.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.77 ms. Allocated memory is still 1.2 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; VAL [p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L88] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L92] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L96] COND TRUE p3 != 0 [L97] lk3 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L124] COND FALSE !(p10 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L128] COND TRUE p11 != 0 [L129] lk11 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L146] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L151] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L219] CALL reach_error() [L3] __assert_fail("0", "test_locks_14-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 62 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 336 SDtfs, 404 SDslu, 17 SDs, 0 SdLazy, 183 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 4854 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-906a4fb [2020-10-19 18:23:42,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:23:42,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:23:42,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:23:42,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:23:42,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:23:42,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:23:42,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:23:42,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:23:42,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:23:42,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:23:42,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:23:42,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:23:42,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:23:42,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:23:42,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:23:42,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:23:42,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:23:42,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:23:42,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:23:42,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:23:42,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:23:42,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:23:42,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:23:42,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:23:42,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:23:42,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:23:42,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:23:42,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:23:42,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:23:42,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:23:42,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:23:42,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:23:42,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:23:42,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:23:42,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:23:42,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:23:42,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:23:42,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:23:42,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:23:42,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:23:42,206 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 18:23:42,231 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:23:42,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:23:42,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:23:42,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:23:42,233 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:23:42,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:23:42,234 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:23:42,234 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:23:42,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:23:42,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:23:42,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:23:42,235 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:23:42,236 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:23:42,236 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:23:42,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:23:42,236 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:23:42,237 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 18:23:42,237 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 18:23:42,237 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:23:42,238 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:23:42,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:23:42,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:23:42,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:23:42,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:23:42,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:23:42,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:23:42,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:23:42,240 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 18:23:42,240 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 18:23:42,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:23:42,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 18:23:42,241 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 [2020-10-19 18:23:42,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:23:42,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:23:42,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:23:42,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:23:42,589 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:23:42,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_14-2.c [2020-10-19 18:23:42,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/565041fea/9d72fa63a288451ea187b9fafb214e2a/FLAGf4532fabd [2020-10-19 18:23:43,110 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:23:43,111 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c [2020-10-19 18:23:43,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/565041fea/9d72fa63a288451ea187b9fafb214e2a/FLAGf4532fabd [2020-10-19 18:23:43,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/565041fea/9d72fa63a288451ea187b9fafb214e2a [2020-10-19 18:23:43,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:23:43,499 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:23:43,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:23:43,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:23:43,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:23:43,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:23:43" (1/1) ... [2020-10-19 18:23:43,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ad8034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:43, skipping insertion in model container [2020-10-19 18:23:43,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:23:43" (1/1) ... [2020-10-19 18:23:43,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:23:43,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:23:43,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:23:43,794 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:23:43,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:23:43,912 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:23:43,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:43 WrapperNode [2020-10-19 18:23:43,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:23:43,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:23:43,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:23:43,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:23:43,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:43" (1/1) ... [2020-10-19 18:23:43,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:43" (1/1) ... [2020-10-19 18:23:43,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:43" (1/1) ... [2020-10-19 18:23:43,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:43" (1/1) ... [2020-10-19 18:23:43,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:43" (1/1) ... [2020-10-19 18:23:43,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:43" (1/1) ... [2020-10-19 18:23:43,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:43" (1/1) ... [2020-10-19 18:23:43,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:23:43,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:23:43,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:23:43,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:23:43,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:43" (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 18:23:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:23:44,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:23:44,035 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:23:44,035 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:23:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:23:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:23:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:23:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:23:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:23:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:23:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:23:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-19 18:23:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:23:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-19 18:23:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-19 18:23:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:23:44,496 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:23:44,496 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-19 18:23:44,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:23:44 BoogieIcfgContainer [2020-10-19 18:23:44,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:23:44,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:23:44,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:23:44,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:23:44,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:23:43" (1/3) ... [2020-10-19 18:23:44,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b9621d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:23:44, skipping insertion in model container [2020-10-19 18:23:44,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:43" (2/3) ... [2020-10-19 18:23:44,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b9621d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:23:44, skipping insertion in model container [2020-10-19 18:23:44,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:23:44" (3/3) ... [2020-10-19 18:23:44,515 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2020-10-19 18:23:44,527 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:23:44,538 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-19 18:23:44,553 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-19 18:23:44,572 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:23:44,573 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:23:44,573 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:23:44,573 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:23:44,573 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:23:44,574 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:23:44,574 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:23:44,574 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:23:44,591 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2020-10-19 18:23:44,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-19 18:23:44,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:44,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:23:44,602 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:44,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:44,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1491239536, now seen corresponding path program 1 times [2020-10-19 18:23:44,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:23:44,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674572935] [2020-10-19 18:23:44,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-19 18:23:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:44,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-19 18:23:44,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:23:44,757 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 18:23:44,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:23:44,782 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 18:23:44,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674572935] [2020-10-19 18:23:44,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:44,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 18:23:44,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491368859] [2020-10-19 18:23:44,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-19 18:23:44,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:23:44,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 18:23:44,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:23:44,811 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2020-10-19 18:23:44,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:44,833 INFO L93 Difference]: Finished difference Result 58 states and 99 transitions. [2020-10-19 18:23:44,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 18:23:44,835 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-19 18:23:44,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:44,850 INFO L225 Difference]: With dead ends: 58 [2020-10-19 18:23:44,851 INFO L226 Difference]: Without dead ends: 53 [2020-10-19 18:23:44,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:23:44,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-19 18:23:44,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-19 18:23:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-19 18:23:44,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 94 transitions. [2020-10-19 18:23:44,913 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 94 transitions. Word has length 9 [2020-10-19 18:23:44,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:44,914 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 94 transitions. [2020-10-19 18:23:44,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-19 18:23:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 94 transitions. [2020-10-19 18:23:44,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 18:23:44,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:44,917 INFO L422 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, 1, 1, 1, 1] [2020-10-19 18:23:45,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 18:23:45,139 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:45,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:45,141 INFO L82 PathProgramCache]: Analyzing trace with hash -590778745, now seen corresponding path program 1 times [2020-10-19 18:23:45,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:23:45,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578851761] [2020-10-19 18:23:45,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-19 18:23:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:45,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:23:45,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:23:45,252 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 18:23:45,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:23:45,266 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 18:23:45,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578851761] [2020-10-19 18:23:45,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:45,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 18:23:45,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777309894] [2020-10-19 18:23:45,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:23:45,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:23:45,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:23:45,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:23:45,270 INFO L87 Difference]: Start difference. First operand 53 states and 94 transitions. Second operand 3 states. [2020-10-19 18:23:45,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:45,304 INFO L93 Difference]: Finished difference Result 97 states and 177 transitions. [2020-10-19 18:23:45,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:23:45,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-19 18:23:45,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:45,308 INFO L225 Difference]: With dead ends: 97 [2020-10-19 18:23:45,308 INFO L226 Difference]: Without dead ends: 97 [2020-10-19 18:23:45,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:23:45,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-19 18:23:45,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2020-10-19 18:23:45,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-19 18:23:45,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 176 transitions. [2020-10-19 18:23:45,327 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 176 transitions. Word has length 26 [2020-10-19 18:23:45,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:45,327 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 176 transitions. [2020-10-19 18:23:45,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:23:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 176 transitions. [2020-10-19 18:23:45,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 18:23:45,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:45,329 INFO L422 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, 1, 1, 1, 1] [2020-10-19 18:23:45,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 18:23:45,542 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:45,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:45,542 INFO L82 PathProgramCache]: Analyzing trace with hash -591001697, now seen corresponding path program 1 times [2020-10-19 18:23:45,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:23:45,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852363339] [2020-10-19 18:23:45,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-19 18:23:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:45,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:23:45,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:23:45,647 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 18:23:45,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:23:45,660 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 18:23:45,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852363339] [2020-10-19 18:23:45,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:45,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 18:23:45,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486253184] [2020-10-19 18:23:45,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:23:45,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:23:45,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:23:45,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:23:45,664 INFO L87 Difference]: Start difference. First operand 96 states and 176 transitions. Second operand 3 states. [2020-10-19 18:23:45,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:45,686 INFO L93 Difference]: Finished difference Result 97 states and 177 transitions. [2020-10-19 18:23:45,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:23:45,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-19 18:23:45,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:45,689 INFO L225 Difference]: With dead ends: 97 [2020-10-19 18:23:45,690 INFO L226 Difference]: Without dead ends: 97 [2020-10-19 18:23:45,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:23:45,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-19 18:23:45,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-19 18:23:45,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-19 18:23:45,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 177 transitions. [2020-10-19 18:23:45,708 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 177 transitions. Word has length 26 [2020-10-19 18:23:45,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:45,710 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 177 transitions. [2020-10-19 18:23:45,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:23:45,711 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 177 transitions. [2020-10-19 18:23:45,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 18:23:45,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:45,715 INFO L422 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, 1, 1, 1, 1] [2020-10-19 18:23:45,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 18:23:45,936 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:45,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:45,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1710043845, now seen corresponding path program 1 times [2020-10-19 18:23:45,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:23:45,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213517752] [2020-10-19 18:23:45,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-19 18:23:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:23:46,023 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:23:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:23:46,079 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:23:46,146 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-19 18:23:46,147 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:23:46,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-19 18:23:46,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:23:46 BoogieIcfgContainer [2020-10-19 18:23:46,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:23:46,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:23:46,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:23:46,427 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:23:46,428 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:23:44" (3/4) ... [2020-10-19 18:23:46,432 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:23:46,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:23:46,435 INFO L168 Benchmark]: Toolchain (without parser) took 2941.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 961.3 MB in the beginning and 977.3 MB in the end (delta: -16.0 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:46,436 INFO L168 Benchmark]: CDTParser took 0.27 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 18:23:46,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 961.3 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:46,437 INFO L168 Benchmark]: Boogie Preprocessor took 48.65 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. [2020-10-19 18:23:46,438 INFO L168 Benchmark]: RCFGBuilder took 536.61 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:46,439 INFO L168 Benchmark]: TraceAbstraction took 1925.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.3 MB in the end (delta: 109.1 MB). Peak memory consumption was 109.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:46,440 INFO L168 Benchmark]: Witness Printer took 5.88 ms. Allocated memory is still 1.2 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:23:46,444 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 413.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 961.3 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.65 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. * RCFGBuilder took 536.61 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1925.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.3 MB in the end (delta: 109.1 MB). Peak memory consumption was 109.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.88 ms. Allocated memory is still 1.2 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; VAL [p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L88] COND FALSE !(p1 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L92] COND FALSE !(p2 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L96] COND TRUE p3 != 0 [L97] lk3 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L124] COND FALSE !(p10 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L128] COND TRUE p11 != 0 [L129] lk11 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L146] COND FALSE !(p1 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L151] COND FALSE !(p2 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L219] CALL reach_error() [L3] __assert_fail("0", "test_locks_14-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 62 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 339 SDtfs, 83 SDslu, 176 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 6228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 282 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...