./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-optional-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-optional-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/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 8409443a6b8db5c0500e3e8aa54c33463c524ec9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:13:33,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:13:33,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:13:33,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:13:33,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:13:33,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:13:33,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:13:33,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:13:33,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:13:33,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:13:33,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:13:33,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:13:33,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:13:33,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:13:33,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:13:33,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:13:33,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:13:33,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:13:33,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:13:33,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:13:33,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:13:33,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:13:33,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:13:33,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:13:33,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:13:33,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:13:33,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:13:33,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:13:33,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:13:33,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:13:33,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:13:33,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:13:33,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:13:33,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:13:33,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:13:33,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:13:33,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:13:33,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:13:33,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:13:33,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:13:33,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:13:33,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-12-07 17:13:33,643 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:13:33,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:13:33,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:13:33,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:13:33,644 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:13:33,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:13:33,645 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:13:33,645 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:13:33,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:13:33,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:13:33,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:13:33,645 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 17:13:33,646 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 17:13:33,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:13:33,646 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:13:33,646 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:13:33,646 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:13:33,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:13:33,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:13:33,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:13:33,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:13:33,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:13:33,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:13:33,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:13:33,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:13:33,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:13:33,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:13:33,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/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 -> 8409443a6b8db5c0500e3e8aa54c33463c524ec9 [2019-12-07 17:13:33,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:13:33,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:13:33,764 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:13:33,765 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:13:33,765 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:13:33,765 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-optional-2.i [2019-12-07 17:13:33,805 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/bin/uautomizer/data/fdbc54d9d/4bb6d472913246fda972bad666ec5638/FLAGca69451e4 [2019-12-07 17:13:34,258 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:13:34,259 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/sv-benchmarks/c/forester-heap/dll-optional-2.i [2019-12-07 17:13:34,267 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/bin/uautomizer/data/fdbc54d9d/4bb6d472913246fda972bad666ec5638/FLAGca69451e4 [2019-12-07 17:13:34,276 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/bin/uautomizer/data/fdbc54d9d/4bb6d472913246fda972bad666ec5638 [2019-12-07 17:13:34,278 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:13:34,279 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 17:13:34,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:13:34,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:13:34,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:13:34,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:13:34" (1/1) ... [2019-12-07 17:13:34,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53457aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:34, skipping insertion in model container [2019-12-07 17:13:34,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:13:34" (1/1) ... [2019-12-07 17:13:34,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:13:34,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:13:34,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:13:34,526 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:13:34,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:13:34,584 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:13:34,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:34 WrapperNode [2019-12-07 17:13:34,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:13:34,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:13:34,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:13:34,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:13:34,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:34" (1/1) ... [2019-12-07 17:13:34,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:34" (1/1) ... [2019-12-07 17:13:34,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:34" (1/1) ... [2019-12-07 17:13:34,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:34" (1/1) ... [2019-12-07 17:13:34,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:34" (1/1) ... [2019-12-07 17:13:34,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:34" (1/1) ... [2019-12-07 17:13:34,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:34" (1/1) ... [2019-12-07 17:13:34,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:13:34,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:13:34,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:13:34,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:13:34,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/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 [2019-12-07 17:13:34,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 17:13:34,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:13:34,665 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 17:13:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 17:13:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 17:13:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 17:13:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 17:13:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 17:13:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 17:13:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 17:13:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 17:13:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 17:13:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 17:13:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 17:13:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 17:13:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 17:13:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 17:13:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 17:13:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 17:13:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 17:13:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 17:13:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 17:13:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 17:13:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 17:13:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 17:13:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 17:13:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 17:13:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 17:13:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 17:13:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 17:13:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 17:13:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 17:13:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 17:13:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 17:13:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 17:13:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 17:13:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 17:13:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 17:13:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 17:13:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 17:13:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 17:13:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 17:13:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 17:13:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 17:13:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 17:13:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:13:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 17:13:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 17:13:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:13:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 17:13:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:13:35,046 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:13:35,046 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 17:13:35,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:35 BoogieIcfgContainer [2019-12-07 17:13:35,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:13:35,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:13:35,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:13:35,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:13:35,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:13:34" (1/3) ... [2019-12-07 17:13:35,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3285b4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:13:35, skipping insertion in model container [2019-12-07 17:13:35,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:34" (2/3) ... [2019-12-07 17:13:35,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3285b4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:13:35, skipping insertion in model container [2019-12-07 17:13:35,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:35" (3/3) ... [2019-12-07 17:13:35,054 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-optional-2.i [2019-12-07 17:13:35,061 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:13:35,066 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 66 error locations. [2019-12-07 17:13:35,074 INFO L249 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2019-12-07 17:13:35,086 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:13:35,087 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 17:13:35,087 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:13:35,087 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:13:35,087 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:13:35,087 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:13:35,087 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:13:35,087 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:13:35,102 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2019-12-07 17:13:35,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 17:13:35,108 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:13:35,109 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:35,109 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 17:13:35,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:35,113 INFO L82 PathProgramCache]: Analyzing trace with hash 922504407, now seen corresponding path program 1 times [2019-12-07 17:13:35,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:35,119 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294976064] [2019-12-07 17:13:35,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:35,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:35,246 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294976064] [2019-12-07 17:13:35,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:13:35,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:13:35,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139566380] [2019-12-07 17:13:35,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:13:35,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:13:35,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:13:35,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:13:35,263 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 4 states. [2019-12-07 17:13:35,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:35,510 INFO L93 Difference]: Finished difference Result 140 states and 149 transitions. [2019-12-07 17:13:35,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:13:35,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 17:13:35,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:13:35,519 INFO L225 Difference]: With dead ends: 140 [2019-12-07 17:13:35,519 INFO L226 Difference]: Without dead ends: 136 [2019-12-07 17:13:35,520 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:13:35,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-12-07 17:13:35,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 130. [2019-12-07 17:13:35,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-12-07 17:13:35,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 140 transitions. [2019-12-07 17:13:35,551 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 140 transitions. Word has length 7 [2019-12-07 17:13:35,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:13:35,551 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 140 transitions. [2019-12-07 17:13:35,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:13:35,551 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 140 transitions. [2019-12-07 17:13:35,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 17:13:35,551 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:13:35,551 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:35,552 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 17:13:35,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:35,552 INFO L82 PathProgramCache]: Analyzing trace with hash 922504408, now seen corresponding path program 1 times [2019-12-07 17:13:35,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:35,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681977808] [2019-12-07 17:13:35,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:35,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:35,593 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681977808] [2019-12-07 17:13:35,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:13:35,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:13:35,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974526167] [2019-12-07 17:13:35,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:13:35,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:13:35,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:13:35,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:13:35,595 INFO L87 Difference]: Start difference. First operand 130 states and 140 transitions. Second operand 4 states. [2019-12-07 17:13:35,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:35,752 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2019-12-07 17:13:35,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:13:35,753 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 17:13:35,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:13:35,754 INFO L225 Difference]: With dead ends: 125 [2019-12-07 17:13:35,754 INFO L226 Difference]: Without dead ends: 125 [2019-12-07 17:13:35,755 INFO L630 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 [2019-12-07 17:13:35,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-12-07 17:13:35,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2019-12-07 17:13:35,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-12-07 17:13:35,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2019-12-07 17:13:35,764 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 7 [2019-12-07 17:13:35,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:13:35,764 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2019-12-07 17:13:35,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:13:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2019-12-07 17:13:35,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 17:13:35,764 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:13:35,765 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:35,765 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 17:13:35,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:35,765 INFO L82 PathProgramCache]: Analyzing trace with hash 498932383, now seen corresponding path program 1 times [2019-12-07 17:13:35,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:35,765 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91393421] [2019-12-07 17:13:35,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:35,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:35,834 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91393421] [2019-12-07 17:13:35,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:13:35,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:13:35,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415552157] [2019-12-07 17:13:35,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:13:35,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:13:35,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:13:35,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:13:35,835 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand 6 states. [2019-12-07 17:13:36,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:36,243 INFO L93 Difference]: Finished difference Result 243 states and 262 transitions. [2019-12-07 17:13:36,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 17:13:36,244 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-12-07 17:13:36,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:13:36,245 INFO L225 Difference]: With dead ends: 243 [2019-12-07 17:13:36,245 INFO L226 Difference]: Without dead ends: 243 [2019-12-07 17:13:36,246 INFO L630 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 [2019-12-07 17:13:36,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-12-07 17:13:36,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 120. [2019-12-07 17:13:36,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 17:13:36,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 130 transitions. [2019-12-07 17:13:36,253 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 130 transitions. Word has length 15 [2019-12-07 17:13:36,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:13:36,253 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 130 transitions. [2019-12-07 17:13:36,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:13:36,253 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 130 transitions. [2019-12-07 17:13:36,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 17:13:36,254 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:13:36,254 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:36,254 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 17:13:36,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:36,254 INFO L82 PathProgramCache]: Analyzing trace with hash 498932384, now seen corresponding path program 1 times [2019-12-07 17:13:36,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:36,255 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490763868] [2019-12-07 17:13:36,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:36,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:36,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490763868] [2019-12-07 17:13:36,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:13:36,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:13:36,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797294028] [2019-12-07 17:13:36,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:13:36,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:13:36,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:13:36,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:13:36,318 INFO L87 Difference]: Start difference. First operand 120 states and 130 transitions. Second operand 6 states. [2019-12-07 17:13:36,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:36,687 INFO L93 Difference]: Finished difference Result 217 states and 235 transitions. [2019-12-07 17:13:36,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:13:36,688 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-12-07 17:13:36,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:13:36,689 INFO L225 Difference]: With dead ends: 217 [2019-12-07 17:13:36,689 INFO L226 Difference]: Without dead ends: 217 [2019-12-07 17:13:36,690 INFO L630 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 [2019-12-07 17:13:36,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2019-12-07 17:13:36,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 119. [2019-12-07 17:13:36,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-12-07 17:13:36,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2019-12-07 17:13:36,696 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 15 [2019-12-07 17:13:36,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:13:36,696 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2019-12-07 17:13:36,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:13:36,696 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2019-12-07 17:13:36,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 17:13:36,696 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:13:36,697 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:36,697 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 17:13:36,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:36,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1429919314, now seen corresponding path program 1 times [2019-12-07 17:13:36,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:36,697 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305744138] [2019-12-07 17:13:36,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:36,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:36,740 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305744138] [2019-12-07 17:13:36,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:13:36,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 17:13:36,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495441828] [2019-12-07 17:13:36,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:13:36,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:13:36,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:13:36,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:13:36,741 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand 5 states. [2019-12-07 17:13:36,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:36,899 INFO L93 Difference]: Finished difference Result 122 states and 131 transitions. [2019-12-07 17:13:36,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:13:36,899 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-07 17:13:36,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:13:36,900 INFO L225 Difference]: With dead ends: 122 [2019-12-07 17:13:36,900 INFO L226 Difference]: Without dead ends: 122 [2019-12-07 17:13:36,900 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:13:36,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-12-07 17:13:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2019-12-07 17:13:36,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-12-07 17:13:36,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 128 transitions. [2019-12-07 17:13:36,904 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 128 transitions. Word has length 17 [2019-12-07 17:13:36,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:13:36,905 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 128 transitions. [2019-12-07 17:13:36,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:13:36,905 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 128 transitions. [2019-12-07 17:13:36,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 17:13:36,905 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:13:36,905 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:36,906 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 17:13:36,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:36,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1429919313, now seen corresponding path program 1 times [2019-12-07 17:13:36,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:36,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377924860] [2019-12-07 17:13:36,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:36,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:36,951 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377924860] [2019-12-07 17:13:36,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:13:36,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 17:13:36,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621158002] [2019-12-07 17:13:36,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:13:36,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:13:36,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:13:36,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:13:36,952 INFO L87 Difference]: Start difference. First operand 113 states and 128 transitions. Second operand 5 states. [2019-12-07 17:13:37,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:37,137 INFO L93 Difference]: Finished difference Result 158 states and 173 transitions. [2019-12-07 17:13:37,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:13:37,137 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-07 17:13:37,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:13:37,138 INFO L225 Difference]: With dead ends: 158 [2019-12-07 17:13:37,138 INFO L226 Difference]: Without dead ends: 158 [2019-12-07 17:13:37,138 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:13:37,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-12-07 17:13:37,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 134. [2019-12-07 17:13:37,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-12-07 17:13:37,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 155 transitions. [2019-12-07 17:13:37,144 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 155 transitions. Word has length 17 [2019-12-07 17:13:37,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:13:37,145 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 155 transitions. [2019-12-07 17:13:37,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:13:37,145 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 155 transitions. [2019-12-07 17:13:37,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 17:13:37,146 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:13:37,146 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:37,146 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 17:13:37,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:37,146 INFO L82 PathProgramCache]: Analyzing trace with hash 237074961, now seen corresponding path program 1 times [2019-12-07 17:13:37,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:37,147 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558043822] [2019-12-07 17:13:37,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:37,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:37,187 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558043822] [2019-12-07 17:13:37,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:13:37,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:13:37,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594432659] [2019-12-07 17:13:37,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:13:37,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:13:37,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:13:37,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:13:37,188 INFO L87 Difference]: Start difference. First operand 134 states and 155 transitions. Second operand 6 states. [2019-12-07 17:13:37,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:37,408 INFO L93 Difference]: Finished difference Result 179 states and 205 transitions. [2019-12-07 17:13:37,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:13:37,408 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-12-07 17:13:37,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:13:37,409 INFO L225 Difference]: With dead ends: 179 [2019-12-07 17:13:37,409 INFO L226 Difference]: Without dead ends: 179 [2019-12-07 17:13:37,410 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:13:37,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-12-07 17:13:37,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 133. [2019-12-07 17:13:37,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-12-07 17:13:37,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2019-12-07 17:13:37,418 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 19 [2019-12-07 17:13:37,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:13:37,418 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2019-12-07 17:13:37,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:13:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2019-12-07 17:13:37,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 17:13:37,419 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:13:37,419 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:37,419 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 17:13:37,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:37,419 INFO L82 PathProgramCache]: Analyzing trace with hash 237074962, now seen corresponding path program 1 times [2019-12-07 17:13:37,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:37,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911849424] [2019-12-07 17:13:37,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:37,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:37,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911849424] [2019-12-07 17:13:37,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:13:37,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:13:37,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884166911] [2019-12-07 17:13:37,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:13:37,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:13:37,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:13:37,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:13:37,477 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand 6 states. [2019-12-07 17:13:37,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:37,780 INFO L93 Difference]: Finished difference Result 199 states and 231 transitions. [2019-12-07 17:13:37,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:13:37,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-12-07 17:13:37,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:13:37,781 INFO L225 Difference]: With dead ends: 199 [2019-12-07 17:13:37,781 INFO L226 Difference]: Without dead ends: 199 [2019-12-07 17:13:37,781 INFO L630 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 [2019-12-07 17:13:37,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2019-12-07 17:13:37,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 132. [2019-12-07 17:13:37,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-12-07 17:13:37,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 151 transitions. [2019-12-07 17:13:37,785 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 151 transitions. Word has length 19 [2019-12-07 17:13:37,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:13:37,785 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 151 transitions. [2019-12-07 17:13:37,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:13:37,785 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 151 transitions. [2019-12-07 17:13:37,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 17:13:37,786 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:13:37,786 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:37,786 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 17:13:37,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:37,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1719821211, now seen corresponding path program 1 times [2019-12-07 17:13:37,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:37,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129328806] [2019-12-07 17:13:37,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:37,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:37,815 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129328806] [2019-12-07 17:13:37,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:13:37,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:13:37,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223865528] [2019-12-07 17:13:37,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:13:37,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:13:37,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:13:37,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:13:37,816 INFO L87 Difference]: Start difference. First operand 132 states and 151 transitions. Second operand 5 states. [2019-12-07 17:13:37,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:37,991 INFO L93 Difference]: Finished difference Result 149 states and 164 transitions. [2019-12-07 17:13:37,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:13:37,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-12-07 17:13:37,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:13:37,992 INFO L225 Difference]: With dead ends: 149 [2019-12-07 17:13:37,992 INFO L226 Difference]: Without dead ends: 149 [2019-12-07 17:13:37,992 INFO L630 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 [2019-12-07 17:13:37,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-12-07 17:13:37,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 132. [2019-12-07 17:13:37,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-12-07 17:13:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 149 transitions. [2019-12-07 17:13:37,996 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 149 transitions. Word has length 22 [2019-12-07 17:13:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:13:37,996 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 149 transitions. [2019-12-07 17:13:37,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:13:37,996 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 149 transitions. [2019-12-07 17:13:37,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 17:13:37,996 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:13:37,997 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:37,997 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 17:13:37,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:37,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1797605623, now seen corresponding path program 1 times [2019-12-07 17:13:37,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:37,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322089456] [2019-12-07 17:13:37,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:38,031 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:13:38,032 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:13:38,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:13:38 BoogieIcfgContainer [2019-12-07 17:13:38,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:13:38,052 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:13:38,052 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:13:38,052 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:13:38,052 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:35" (3/4) ... [2019-12-07 17:13:38,054 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 17:13:38,083 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c16aeb05-4f0e-48f3-9fd0-4799a2edbfb3/bin/uautomizer/witness.graphml [2019-12-07 17:13:38,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:13:38,085 INFO L168 Benchmark]: Toolchain (without parser) took 3806.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 937.2 MB in the beginning and 1.0 GB in the end (delta: -79.8 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:13:38,085 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:13:38,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 937.2 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:13:38,086 INFO L168 Benchmark]: Boogie Preprocessor took 41.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:13:38,086 INFO L168 Benchmark]: RCFGBuilder took 421.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:13:38,087 INFO L168 Benchmark]: TraceAbstraction took 3003.31 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 43.0 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -6.3 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:13:38,087 INFO L168 Benchmark]: Witness Printer took 31.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:13:38,089 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 937.2 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 421.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3003.31 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 43.0 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -6.3 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. * Witness Printer took 31.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 998]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L987] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L988] head->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L989] head->opt = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L990] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L996] COND TRUE x != ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L998] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0] [L998] EXPR x->data == 2 && x->opt == x VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0, x->data == 2 && x->opt == x=0] [L998] COND TRUE !(x->data == 2 && x->opt == x) [L998] __VERIFIER_error() VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 140 locations, 66 error locations. Result: UNSAFE, OverallTime: 2.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 899 SDtfs, 1029 SDslu, 1191 SDs, 0 SdLazy, 2887 SolverSat, 112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 394 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 7722 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...