./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-optional-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-optional-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4817866b64d47a0885045d682a213ce065b00b0f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:27:30,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:27:30,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:27:30,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:27:30,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:27:30,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:27:30,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:27:30,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:27:30,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:27:30,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:27:30,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:27:30,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:27:30,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:27:30,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:27:30,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:27:30,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:27:30,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:27:30,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:27:30,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:27:30,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:27:30,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:27:30,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:27:30,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:27:30,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:27:30,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:27:30,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:27:30,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:27:30,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:27:30,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:27:30,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:27:30,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:27:30,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:27:30,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:27:30,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:27:30,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:27:30,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:27:30,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:27:30,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:27:30,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:27:30,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:27:30,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:27:30,688 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-11-30 01:27:30,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:27:30,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:27:30,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:27:30,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:27:30,725 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:27:30,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:27:30,726 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:27:30,726 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:27:30,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:27:30,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:27:30,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:27:30,729 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 01:27:30,729 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 01:27:30,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:27:30,729 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:27:30,730 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:27:30,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:27:30,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:27:30,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:27:30,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:27:30,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:27:30,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:27:30,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:27:30,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:27:30,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:27:30,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:27:30,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:27:30,733 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_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4817866b64d47a0885045d682a213ce065b00b0f [2020-11-30 01:27:31,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:27:31,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:27:31,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:27:31,082 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:27:31,083 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:27:31,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer/../../sv-benchmarks/c/forester-heap/sll-optional-2.i [2020-11-30 01:27:31,192 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer/data/4b5a7a087/91d01ba535c04c738915a40a2b7acefd/FLAG6077df7fd [2020-11-30 01:27:31,852 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:27:31,852 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/sv-benchmarks/c/forester-heap/sll-optional-2.i [2020-11-30 01:27:31,886 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer/data/4b5a7a087/91d01ba535c04c738915a40a2b7acefd/FLAG6077df7fd [2020-11-30 01:27:32,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer/data/4b5a7a087/91d01ba535c04c738915a40a2b7acefd [2020-11-30 01:27:32,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:27:32,156 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 01:27:32,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:27:32,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:27:32,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:27:32,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:27:32" (1/1) ... [2020-11-30 01:27:32,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ee2bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:32, skipping insertion in model container [2020-11-30 01:27:32,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:27:32" (1/1) ... [2020-11-30 01:27:32,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:27:32,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:27:32,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:27:32,658 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:27:32,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:27:32,771 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:27:32,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:32 WrapperNode [2020-11-30 01:27:32,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:27:32,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:27:32,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:27:32,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:27:32,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:32" (1/1) ... [2020-11-30 01:27:32,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:32" (1/1) ... [2020-11-30 01:27:32,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:32" (1/1) ... [2020-11-30 01:27:32,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:32" (1/1) ... [2020-11-30 01:27:32,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:32" (1/1) ... [2020-11-30 01:27:32,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:32" (1/1) ... [2020-11-30 01:27:32,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:32" (1/1) ... [2020-11-30 01:27:32,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:27:32,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:27:32,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:27:32,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:27:32,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/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 [2020-11-30 01:27:32,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-30 01:27:32,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:27:32,953 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-30 01:27:32,953 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-30 01:27:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-30 01:27:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-30 01:27:32,954 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-30 01:27:32,954 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-30 01:27:32,954 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-30 01:27:32,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-30 01:27:32,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-30 01:27:32,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-30 01:27:32,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-30 01:27:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-30 01:27:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-30 01:27:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-30 01:27:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-30 01:27:32,957 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-30 01:27:32,957 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-30 01:27:32,957 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-30 01:27:32,957 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-30 01:27:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-30 01:27:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-30 01:27:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-30 01:27:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-30 01:27:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-30 01:27:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-30 01:27:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-30 01:27:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-30 01:27:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-30 01:27:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-30 01:27:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-30 01:27:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-30 01:27:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-30 01:27:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-30 01:27:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-30 01:27:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-30 01:27:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-30 01:27:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-30 01:27:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-30 01:27:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-30 01:27:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-30 01:27:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-30 01:27:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-30 01:27:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-30 01:27:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-30 01:27:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-30 01:27:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-30 01:27:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-30 01:27:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-30 01:27:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-30 01:27:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-30 01:27:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-30 01:27:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-30 01:27:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-30 01:27:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-30 01:27:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-30 01:27:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-30 01:27:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-30 01:27:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-30 01:27:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-30 01:27:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-30 01:27:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-30 01:27:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-30 01:27:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-30 01:27:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-30 01:27:32,969 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-30 01:27:32,969 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-30 01:27:32,969 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-30 01:27:32,969 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-30 01:27:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-30 01:27:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-30 01:27:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-30 01:27:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-30 01:27:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-30 01:27:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-30 01:27:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-30 01:27:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-30 01:27:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-30 01:27:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-30 01:27:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-30 01:27:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-30 01:27:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-30 01:27:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-30 01:27:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-30 01:27:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-30 01:27:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-30 01:27:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-30 01:27:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-30 01:27:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-30 01:27:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-30 01:27:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-30 01:27:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-30 01:27:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-30 01:27:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-30 01:27:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-30 01:27:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-30 01:27:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-30 01:27:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-30 01:27:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-30 01:27:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-30 01:27:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-30 01:27:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-30 01:27:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-30 01:27:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-30 01:27:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-30 01:27:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-30 01:27:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-30 01:27:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-30 01:27:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-30 01:27:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-30 01:27:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-30 01:27:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:27:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-30 01:27:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 01:27:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 01:27:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:27:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 01:27:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:27:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:27:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-30 01:27:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:27:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:27:34,017 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:27:34,017 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:27:34,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:34 BoogieIcfgContainer [2020-11-30 01:27:34,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:27:34,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:27:34,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:27:34,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:27:34,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:27:32" (1/3) ... [2020-11-30 01:27:34,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d2bdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:27:34, skipping insertion in model container [2020-11-30 01:27:34,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:32" (2/3) ... [2020-11-30 01:27:34,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d2bdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:27:34, skipping insertion in model container [2020-11-30 01:27:34,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:34" (3/3) ... [2020-11-30 01:27:34,031 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-optional-2.i [2020-11-30 01:27:34,045 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:27:34,051 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 60 error locations. [2020-11-30 01:27:34,066 INFO L253 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2020-11-30 01:27:34,091 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:27:34,091 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 01:27:34,091 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:27:34,091 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:27:34,092 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:27:34,092 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:27:34,092 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:27:34,092 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:27:34,115 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-11-30 01:27:34,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:27:34,125 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:34,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:34,126 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-30 01:27:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:34,134 INFO L82 PathProgramCache]: Analyzing trace with hash 2076013176, now seen corresponding path program 1 times [2020-11-30 01:27:34,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:34,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360836520] [2020-11-30 01:27:34,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:34,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 01:27:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:34,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:34,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360836520] [2020-11-30 01:27:34,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:34,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:34,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857803161] [2020-11-30 01:27:34,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:27:34,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:34,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:27:34,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:27:34,463 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 4 states. [2020-11-30 01:27:34,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:34,996 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2020-11-30 01:27:34,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:27:34,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-30 01:27:34,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:35,022 INFO L225 Difference]: With dead ends: 133 [2020-11-30 01:27:35,022 INFO L226 Difference]: Without dead ends: 129 [2020-11-30 01:27:35,027 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 [2020-11-30 01:27:35,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-11-30 01:27:35,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2020-11-30 01:27:35,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-30 01:27:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2020-11-30 01:27:35,117 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 7 [2020-11-30 01:27:35,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:35,118 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2020-11-30 01:27:35,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:27:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2020-11-30 01:27:35,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:27:35,119 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:35,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:35,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:27:35,120 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-30 01:27:35,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:35,121 INFO L82 PathProgramCache]: Analyzing trace with hash 2076013177, now seen corresponding path program 1 times [2020-11-30 01:27:35,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:35,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412391625] [2020-11-30 01:27:35,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:35,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 01:27:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:35,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:35,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412391625] [2020-11-30 01:27:35,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:35,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:35,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649202173] [2020-11-30 01:27:35,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:27:35,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:35,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:27:35,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:27:35,272 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand 4 states. [2020-11-30 01:27:35,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:35,665 INFO L93 Difference]: Finished difference Result 119 states and 129 transitions. [2020-11-30 01:27:35,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:27:35,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-30 01:27:35,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:35,668 INFO L225 Difference]: With dead ends: 119 [2020-11-30 01:27:35,668 INFO L226 Difference]: Without dead ends: 119 [2020-11-30 01:27:35,669 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 [2020-11-30 01:27:35,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-11-30 01:27:35,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2020-11-30 01:27:35,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-30 01:27:35,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 125 transitions. [2020-11-30 01:27:35,680 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 125 transitions. Word has length 7 [2020-11-30 01:27:35,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:35,681 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 125 transitions. [2020-11-30 01:27:35,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:27:35,681 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 125 transitions. [2020-11-30 01:27:35,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:27:35,682 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:35,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:35,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:27:35,683 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-30 01:27:35,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:35,684 INFO L82 PathProgramCache]: Analyzing trace with hash 244643326, now seen corresponding path program 1 times [2020-11-30 01:27:35,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:35,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561111683] [2020-11-30 01:27:35,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:35,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 01:27:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:35,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:35,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561111683] [2020-11-30 01:27:35,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:35,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:27:35,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309381688] [2020-11-30 01:27:35,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:27:35,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:35,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:27:35,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:27:35,865 INFO L87 Difference]: Start difference. First operand 115 states and 125 transitions. Second operand 6 states. [2020-11-30 01:27:36,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:36,715 INFO L93 Difference]: Finished difference Result 228 states and 249 transitions. [2020-11-30 01:27:36,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:27:36,716 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-30 01:27:36,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:36,719 INFO L225 Difference]: With dead ends: 228 [2020-11-30 01:27:36,720 INFO L226 Difference]: Without dead ends: 228 [2020-11-30 01:27:36,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:27:36,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-11-30 01:27:36,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 114. [2020-11-30 01:27:36,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-30 01:27:36,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2020-11-30 01:27:36,733 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 14 [2020-11-30 01:27:36,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:36,734 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2020-11-30 01:27:36,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:27:36,734 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2020-11-30 01:27:36,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:27:36,735 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:36,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:36,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:27:36,736 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-30 01:27:36,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:36,740 INFO L82 PathProgramCache]: Analyzing trace with hash 244643327, now seen corresponding path program 1 times [2020-11-30 01:27:36,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:36,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671684691] [2020-11-30 01:27:36,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:36,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 01:27:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:36,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:36,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671684691] [2020-11-30 01:27:36,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:36,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:27:36,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217839500] [2020-11-30 01:27:36,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:27:36,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:36,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:27:36,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:27:36,938 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand 6 states. [2020-11-30 01:27:37,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:37,709 INFO L93 Difference]: Finished difference Result 203 states and 222 transitions. [2020-11-30 01:27:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:27:37,710 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-30 01:27:37,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:37,712 INFO L225 Difference]: With dead ends: 203 [2020-11-30 01:27:37,712 INFO L226 Difference]: Without dead ends: 203 [2020-11-30 01:27:37,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:27:37,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-11-30 01:27:37,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 113. [2020-11-30 01:27:37,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-30 01:27:37,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 123 transitions. [2020-11-30 01:27:37,723 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 123 transitions. Word has length 14 [2020-11-30 01:27:37,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:37,724 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 123 transitions. [2020-11-30 01:27:37,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:27:37,724 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 123 transitions. [2020-11-30 01:27:37,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:27:37,725 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:37,725 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:37,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:27:37,726 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-30 01:27:37,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:37,728 INFO L82 PathProgramCache]: Analyzing trace with hash 264916741, now seen corresponding path program 1 times [2020-11-30 01:27:37,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:37,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369105329] [2020-11-30 01:27:37,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:37,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 01:27:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:37,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:37,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369105329] [2020-11-30 01:27:37,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:37,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:27:37,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608308258] [2020-11-30 01:27:37,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:27:37,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:37,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:27:37,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:27:37,876 INFO L87 Difference]: Start difference. First operand 113 states and 123 transitions. Second operand 5 states. [2020-11-30 01:27:38,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:38,239 INFO L93 Difference]: Finished difference Result 117 states and 126 transitions. [2020-11-30 01:27:38,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:27:38,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-30 01:27:38,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:38,241 INFO L225 Difference]: With dead ends: 117 [2020-11-30 01:27:38,241 INFO L226 Difference]: Without dead ends: 117 [2020-11-30 01:27:38,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:27:38,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-11-30 01:27:38,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 108. [2020-11-30 01:27:38,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-30 01:27:38,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2020-11-30 01:27:38,251 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 16 [2020-11-30 01:27:38,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:38,252 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2020-11-30 01:27:38,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:27:38,252 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2020-11-30 01:27:38,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:27:38,253 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:38,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:38,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:27:38,254 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-30 01:27:38,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:38,260 INFO L82 PathProgramCache]: Analyzing trace with hash 264916742, now seen corresponding path program 1 times [2020-11-30 01:27:38,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:38,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019092457] [2020-11-30 01:27:38,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:38,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 01:27:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:38,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:38,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019092457] [2020-11-30 01:27:38,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:38,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:27:38,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185811277] [2020-11-30 01:27:38,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:27:38,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:38,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:27:38,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:27:38,470 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand 7 states. [2020-11-30 01:27:38,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:38,983 INFO L93 Difference]: Finished difference Result 127 states and 142 transitions. [2020-11-30 01:27:38,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:27:38,984 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-11-30 01:27:38,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:38,985 INFO L225 Difference]: With dead ends: 127 [2020-11-30 01:27:38,985 INFO L226 Difference]: Without dead ends: 127 [2020-11-30 01:27:38,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:27:38,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-30 01:27:38,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 119. [2020-11-30 01:27:38,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-11-30 01:27:38,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 135 transitions. [2020-11-30 01:27:39,004 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 135 transitions. Word has length 16 [2020-11-30 01:27:39,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:39,004 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 135 transitions. [2020-11-30 01:27:39,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:27:39,004 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 135 transitions. [2020-11-30 01:27:39,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 01:27:39,008 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:39,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:39,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:27:39,009 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-30 01:27:39,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:39,009 INFO L82 PathProgramCache]: Analyzing trace with hash -2015222079, now seen corresponding path program 1 times [2020-11-30 01:27:39,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:39,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921981265] [2020-11-30 01:27:39,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:39,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 01:27:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:39,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:39,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921981265] [2020-11-30 01:27:39,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:39,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:27:39,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657576339] [2020-11-30 01:27:39,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:27:39,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:39,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:27:39,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:27:39,134 INFO L87 Difference]: Start difference. First operand 119 states and 135 transitions. Second operand 7 states. [2020-11-30 01:27:39,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:39,828 INFO L93 Difference]: Finished difference Result 166 states and 189 transitions. [2020-11-30 01:27:39,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:27:39,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-30 01:27:39,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:39,830 INFO L225 Difference]: With dead ends: 166 [2020-11-30 01:27:39,831 INFO L226 Difference]: Without dead ends: 166 [2020-11-30 01:27:39,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:27:39,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-11-30 01:27:39,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 118. [2020-11-30 01:27:39,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-11-30 01:27:39,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 134 transitions. [2020-11-30 01:27:39,838 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 134 transitions. Word has length 19 [2020-11-30 01:27:39,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:39,839 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 134 transitions. [2020-11-30 01:27:39,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:27:39,839 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 134 transitions. [2020-11-30 01:27:39,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 01:27:39,847 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:39,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:39,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:27:39,849 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-30 01:27:39,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:39,850 INFO L82 PathProgramCache]: Analyzing trace with hash -2015222078, now seen corresponding path program 1 times [2020-11-30 01:27:39,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:39,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879056998] [2020-11-30 01:27:39,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:40,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 01:27:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:40,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879056998] [2020-11-30 01:27:40,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:40,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:27:40,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469581361] [2020-11-30 01:27:40,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:27:40,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:40,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:27:40,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:27:40,019 INFO L87 Difference]: Start difference. First operand 118 states and 134 transitions. Second operand 7 states. [2020-11-30 01:27:40,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:40,784 INFO L93 Difference]: Finished difference Result 168 states and 195 transitions. [2020-11-30 01:27:40,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:27:40,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-30 01:27:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:40,786 INFO L225 Difference]: With dead ends: 168 [2020-11-30 01:27:40,786 INFO L226 Difference]: Without dead ends: 168 [2020-11-30 01:27:40,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:27:40,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-11-30 01:27:40,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 104. [2020-11-30 01:27:40,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-30 01:27:40,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2020-11-30 01:27:40,792 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 19 [2020-11-30 01:27:40,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:40,793 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2020-11-30 01:27:40,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:27:40,793 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2020-11-30 01:27:40,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:27:40,794 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:40,794 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] [2020-11-30 01:27:40,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:27:40,795 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-30 01:27:40,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:40,795 INFO L82 PathProgramCache]: Analyzing trace with hash 140607626, now seen corresponding path program 1 times [2020-11-30 01:27:40,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:40,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27975072] [2020-11-30 01:27:40,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:40,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 01:27:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:40,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:40,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27975072] [2020-11-30 01:27:40,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:40,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:27:40,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189376510] [2020-11-30 01:27:40,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:27:40,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:40,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:27:40,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:27:40,871 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand 5 states. [2020-11-30 01:27:41,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:41,221 INFO L93 Difference]: Finished difference Result 134 states and 151 transitions. [2020-11-30 01:27:41,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:27:41,222 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-30 01:27:41,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:41,223 INFO L225 Difference]: With dead ends: 134 [2020-11-30 01:27:41,223 INFO L226 Difference]: Without dead ends: 134 [2020-11-30 01:27:41,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:27:41,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-11-30 01:27:41,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 104. [2020-11-30 01:27:41,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-30 01:27:41,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 117 transitions. [2020-11-30 01:27:41,229 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 117 transitions. Word has length 21 [2020-11-30 01:27:41,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:41,229 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 117 transitions. [2020-11-30 01:27:41,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:27:41,229 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 117 transitions. [2020-11-30 01:27:41,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:27:41,230 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:41,230 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] [2020-11-30 01:27:41,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:27:41,231 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-11-30 01:27:41,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:41,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1642062954, now seen corresponding path program 1 times [2020-11-30 01:27:41,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:41,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958930364] [2020-11-30 01:27:41,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:41,255 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:41,280 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:41,331 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:41,331 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:27:41,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 01:27:41,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:27:41 BoogieIcfgContainer [2020-11-30 01:27:41,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:27:41,381 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:27:41,381 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:27:41,382 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:27:41,382 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:34" (3/4) ... [2020-11-30 01:27:41,387 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:27:41,444 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bd43c88d-b2ba-4c93-a62c-ef76dc25e20e/bin/uautomizer/witness.graphml [2020-11-30 01:27:41,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:27:41,447 INFO L168 Benchmark]: Toolchain (without parser) took 9290.08 ms. Allocated memory was 90.2 MB in the beginning and 172.0 MB in the end (delta: 81.8 MB). Free memory was 58.9 MB in the beginning and 58.4 MB in the end (delta: 438.4 kB). Peak memory consumption was 84.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:41,448 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 90.2 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:27:41,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.68 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 58.6 MB in the beginning and 80.8 MB in the end (delta: -22.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:41,449 INFO L168 Benchmark]: Boogie Preprocessor took 92.20 ms. Allocated memory is still 117.4 MB. Free memory was 80.8 MB in the beginning and 77.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:41,450 INFO L168 Benchmark]: RCFGBuilder took 1153.74 ms. Allocated memory is still 117.4 MB. Free memory was 77.8 MB in the beginning and 69.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:41,451 INFO L168 Benchmark]: TraceAbstraction took 7358.66 ms. Allocated memory was 117.4 MB in the beginning and 172.0 MB in the end (delta: 54.5 MB). Free memory was 68.3 MB in the beginning and 60.5 MB in the end (delta: 7.7 MB). Peak memory consumption was 63.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:41,456 INFO L168 Benchmark]: Witness Printer took 63.45 ms. Allocated memory is still 172.0 MB. Free memory was 60.5 MB in the beginning and 58.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:41,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 90.2 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 614.68 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 58.6 MB in the beginning and 80.8 MB in the end (delta: -22.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.20 ms. Allocated memory is still 117.4 MB. Free memory was 80.8 MB in the beginning and 77.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1153.74 ms. Allocated memory is still 117.4 MB. Free memory was 77.8 MB in the beginning and 69.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7358.66 ms. Allocated memory was 117.4 MB in the beginning and 172.0 MB in the end (delta: 54.5 MB). Free memory was 68.3 MB in the beginning and 60.5 MB in the end (delta: 7.7 MB). Peak memory consumption was 63.0 MB. Max. memory is 16.1 GB. * Witness Printer took 63.45 ms. Allocated memory is still 172.0 MB. Free memory was 60.5 MB in the beginning and 58.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L996] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L997] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L998] COND FALSE !(__VERIFIER_nondet_int()) [L998] COND TRUE __VERIFIER_nondet_int() [L998] head->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L998] head->opt = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L999] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1001] COND FALSE !(__VERIFIER_nondet_int()) [L1004] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1005] COND TRUE x != ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1007] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1007] EXPR x->data == 2 && x->opt == x VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1, x->data == 2 && x->opt == x=0] [L1007] COND TRUE !(x->data == 2 && x->opt == x) [L1007] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "sll-optional-2.c", 16, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 135 locations, 60 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 852 SDtfs, 1063 SDslu, 1263 SDs, 0 SdLazy, 2924 SolverSat, 137 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 373 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 9738 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...