./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer --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 64bit --witnessprinter.graph.data.programhash 3f34751565a9d43a481fab038d13037e70cdccbf ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:42:50,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:42:50,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:42:50,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:42:50,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:42:50,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:42:50,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:42:50,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:42:50,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:42:50,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:42:50,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:42:50,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:42:50,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:42:50,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:42:50,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:42:50,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:42:50,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:42:50,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:42:50,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:42:50,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:42:50,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:42:50,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:42:50,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:42:50,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:42:50,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:42:50,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:42:50,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:42:50,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:42:50,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:42:50,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:42:50,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:42:50,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:42:50,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:42:50,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:42:50,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:42:50,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:42:50,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:42:50,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:42:50,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:42:50,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:42:50,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:42:50,156 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-11-29 18:42:50,187 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:42:50,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:42:50,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:42:50,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:42:50,189 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:42:50,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:42:50,190 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:42:50,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:42:50,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:42:50,191 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 18:42:50,191 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 18:42:50,191 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 18:42:50,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:42:50,191 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 18:42:50,192 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:42:50,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:42:50,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:42:50,192 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:42:50,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:42:50,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:42:50,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:42:50,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:42:50,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:42:50,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:42:50,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:42:50,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f34751565a9d43a481fab038d13037e70cdccbf [2020-11-29 18:42:50,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:42:50,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:42:50,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:42:50,498 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:42:50,499 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:42:50,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2020-11-29 18:42:50,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/data/2e96d4df0/7285a7fb94df46f1922dc4d4bf7cc264/FLAG59a4d4775 [2020-11-29 18:42:51,020 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:42:51,021 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2020-11-29 18:42:51,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/data/2e96d4df0/7285a7fb94df46f1922dc4d4bf7cc264/FLAG59a4d4775 [2020-11-29 18:42:51,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/data/2e96d4df0/7285a7fb94df46f1922dc4d4bf7cc264 [2020-11-29 18:42:51,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:42:51,448 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 18:42:51,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:42:51,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:42:51,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:42:51,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:42:51" (1/1) ... [2020-11-29 18:42:51,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@418108dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:51, skipping insertion in model container [2020-11-29 18:42:51,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:42:51" (1/1) ... [2020-11-29 18:42:51,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:42:51,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:42:51,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:42:51,691 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:42:51,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:42:51,718 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:42:51,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:51 WrapperNode [2020-11-29 18:42:51,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:42:51,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:42:51,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:42:51,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:42:51,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:51" (1/1) ... [2020-11-29 18:42:51,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:51" (1/1) ... [2020-11-29 18:42:51,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:51" (1/1) ... [2020-11-29 18:42:51,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:51" (1/1) ... [2020-11-29 18:42:51,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:51" (1/1) ... [2020-11-29 18:42:51,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:51" (1/1) ... [2020-11-29 18:42:51,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:51" (1/1) ... [2020-11-29 18:42:51,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:42:51,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:42:51,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:42:51,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:42:51,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/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 [2020-11-29 18:42:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 18:42:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:42:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 18:42:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-29 18:42:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-29 18:42:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-29 18:42:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 18:42:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 18:42:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 18:42:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 18:42:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:42:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 18:42:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:42:52,234 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:42:52,235 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-29 18:42:52,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:42:52 BoogieIcfgContainer [2020-11-29 18:42:52,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:42:52,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:42:52,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:42:52,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:42:52,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:42:51" (1/3) ... [2020-11-29 18:42:52,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca43018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:42:52, skipping insertion in model container [2020-11-29 18:42:52,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:51" (2/3) ... [2020-11-29 18:42:52,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca43018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:42:52, skipping insertion in model container [2020-11-29 18:42:52,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:42:52" (3/3) ... [2020-11-29 18:42:52,246 INFO L111 eAbstractionObserver]: Analyzing ICFG SyntaxSupportPointer01-3.c [2020-11-29 18:42:52,257 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:42:52,261 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-11-29 18:42:52,273 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-11-29 18:42:52,294 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:42:52,294 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 18:42:52,295 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:42:52,295 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:42:52,295 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:42:52,295 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:42:52,295 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:42:52,296 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:42:52,310 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-11-29 18:42:52,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 18:42:52,318 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:42:52,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:52,319 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-29 18:42:52,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:52,325 INFO L82 PathProgramCache]: Analyzing trace with hash 222801388, now seen corresponding path program 1 times [2020-11-29 18:42:52,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:52,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080438093] [2020-11-29 18:42:52,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:52,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 18:42:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:52,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:52,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080438093] [2020-11-29 18:42:52,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:52,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:42:52,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101044275] [2020-11-29 18:42:52,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:42:52,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:42:52,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:42:52,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:42:52,585 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 4 states. [2020-11-29 18:42:52,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:42:52,718 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-11-29 18:42:52,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:42:52,720 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 18:42:52,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:42:52,728 INFO L225 Difference]: With dead ends: 25 [2020-11-29 18:42:52,728 INFO L226 Difference]: Without dead ends: 22 [2020-11-29 18:42:52,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:42:52,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-29 18:42:52,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-29 18:42:52,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-29 18:42:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-11-29 18:42:52,764 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 7 [2020-11-29 18:42:52,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:42:52,764 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-11-29 18:42:52,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:42:52,765 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-11-29 18:42:52,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 18:42:52,765 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:42:52,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:52,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:42:52,766 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-29 18:42:52,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:52,767 INFO L82 PathProgramCache]: Analyzing trace with hash 222801389, now seen corresponding path program 1 times [2020-11-29 18:42:52,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:52,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709101585] [2020-11-29 18:42:52,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:52,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 18:42:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:52,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709101585] [2020-11-29 18:42:52,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:52,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:42:52,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529988645] [2020-11-29 18:42:52,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:42:52,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:42:52,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:42:52,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:42:52,864 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 4 states. [2020-11-29 18:42:52,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:42:52,971 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-11-29 18:42:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:42:52,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 18:42:52,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:42:52,973 INFO L225 Difference]: With dead ends: 18 [2020-11-29 18:42:52,973 INFO L226 Difference]: Without dead ends: 18 [2020-11-29 18:42:52,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:42:52,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-29 18:42:52,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-29 18:42:52,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 18:42:52,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-11-29 18:42:52,977 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2020-11-29 18:42:52,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:42:52,977 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-11-29 18:42:52,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:42:52,978 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-11-29 18:42:52,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 18:42:52,978 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:42:52,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:52,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:42:52,979 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-29 18:42:52,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:52,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1751663173, now seen corresponding path program 1 times [2020-11-29 18:42:52,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:52,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661235553] [2020-11-29 18:42:52,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:53,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 18:42:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:53,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:53,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661235553] [2020-11-29 18:42:53,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:53,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:42:53,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671362773] [2020-11-29 18:42:53,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:42:53,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:42:53,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:42:53,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:42:53,122 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 4 states. [2020-11-29 18:42:53,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:42:53,178 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-11-29 18:42:53,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:42:53,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-29 18:42:53,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:42:53,179 INFO L225 Difference]: With dead ends: 17 [2020-11-29 18:42:53,179 INFO L226 Difference]: Without dead ends: 17 [2020-11-29 18:42:53,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:42:53,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-29 18:42:53,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-29 18:42:53,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-29 18:42:53,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-29 18:42:53,183 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2020-11-29 18:42:53,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:42:53,183 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-29 18:42:53,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:42:53,184 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-29 18:42:53,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 18:42:53,184 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:42:53,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:53,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 18:42:53,185 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-29 18:42:53,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:53,186 INFO L82 PathProgramCache]: Analyzing trace with hash -278868728, now seen corresponding path program 1 times [2020-11-29 18:42:53,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:53,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95347677] [2020-11-29 18:42:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:53,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 18:42:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:53,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:53,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95347677] [2020-11-29 18:42:53,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:53,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:42:53,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737536502] [2020-11-29 18:42:53,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:42:53,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:42:53,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:42:53,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:42:53,291 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2020-11-29 18:42:53,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:42:53,382 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-11-29 18:42:53,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:42:53,383 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-29 18:42:53,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:42:53,384 INFO L225 Difference]: With dead ends: 16 [2020-11-29 18:42:53,384 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:42:53,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:42:53,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:42:53,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:42:53,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:42:53,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:42:53,385 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-29 18:42:53,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:42:53,385 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:42:53,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:42:53,386 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:42:53,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:42:53,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 18:42:53,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:42:53 BoogieIcfgContainer [2020-11-29 18:42:53,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:42:53,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:42:53,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:42:53,391 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:42:53,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:42:52" (3/4) ... [2020-11-29 18:42:53,397 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:42:53,403 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-11-29 18:42:53,404 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-11-29 18:42:53,411 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 18:42:53,411 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-29 18:42:53,412 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:42:53,414 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:42:53,464 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a25da3ea-ec4e-4060-a90a-9229eaba7456/bin/uautomizer/witness.graphml [2020-11-29 18:42:53,465 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:42:53,467 INFO L168 Benchmark]: Toolchain (without parser) took 2017.67 ms. Allocated memory is still 94.4 MB. Free memory was 62.8 MB in the beginning and 43.8 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:42:53,467 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 67.1 MB. Free memory was 29.3 MB in the beginning and 29.2 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:42:53,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.44 ms. Allocated memory is still 94.4 MB. Free memory was 62.6 MB in the beginning and 72.8 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:42:53,468 INFO L168 Benchmark]: Boogie Preprocessor took 42.73 ms. Allocated memory is still 94.4 MB. Free memory was 72.8 MB in the beginning and 71.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:42:53,469 INFO L168 Benchmark]: RCFGBuilder took 472.56 ms. Allocated memory is still 94.4 MB. Free memory was 71.3 MB in the beginning and 59.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:42:53,469 INFO L168 Benchmark]: TraceAbstraction took 1152.18 ms. Allocated memory is still 94.4 MB. Free memory was 58.8 MB in the beginning and 46.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:42:53,470 INFO L168 Benchmark]: Witness Printer took 74.05 ms. Allocated memory is still 94.4 MB. Free memory was 46.5 MB in the beginning and 43.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:42:53,472 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 67.1 MB. Free memory was 29.3 MB in the beginning and 29.2 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 269.44 ms. Allocated memory is still 94.4 MB. Free memory was 62.6 MB in the beginning and 72.8 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.73 ms. Allocated memory is still 94.4 MB. Free memory was 72.8 MB in the beginning and 71.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 472.56 ms. Allocated memory is still 94.4 MB. Free memory was 71.3 MB in the beginning and 59.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1152.18 ms. Allocated memory is still 94.4 MB. Free memory was 58.8 MB in the beginning and 46.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Witness Printer took 74.05 ms. Allocated memory is still 94.4 MB. Free memory was 46.5 MB in the beginning and 43.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 39 SDslu, 31 SDs, 0 SdLazy, 107 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1097 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...