./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/stack_longest-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/stack_longest-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da1e2fd74a3b82adf9cb4716d4d9f6eb54f80337 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 02:44:46,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 02:44:46,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 02:44:46,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 02:44:46,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 02:44:46,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 02:44:46,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 02:44:46,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 02:44:46,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 02:44:46,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 02:44:46,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 02:44:46,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 02:44:46,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 02:44:46,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 02:44:46,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 02:44:46,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 02:44:46,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 02:44:46,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 02:44:46,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 02:44:46,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 02:44:46,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 02:44:46,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 02:44:46,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 02:44:46,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 02:44:46,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 02:44:46,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 02:44:46,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 02:44:46,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 02:44:46,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 02:44:46,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 02:44:46,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 02:44:46,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 02:44:46,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 02:44:46,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 02:44:46,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 02:44:46,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 02:44:46,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 02:44:46,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 02:44:46,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 02:44:46,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 02:44:46,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 02:44:46,959 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 02:44:47,002 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 02:44:47,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 02:44:47,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 02:44:47,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 02:44:47,004 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 02:44:47,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 02:44:47,005 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 02:44:47,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 02:44:47,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 02:44:47,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 02:44:47,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 02:44:47,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 02:44:47,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 02:44:47,008 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 02:44:47,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 02:44:47,008 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 02:44:47,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 02:44:47,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 02:44:47,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 02:44:47,009 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 02:44:47,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 02:44:47,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 02:44:47,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 02:44:47,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 02:44:47,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 02:44:47,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 02:44:47,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 02:44:47,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 02:44:47,011 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 02:44:47,012 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) 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 -> da1e2fd74a3b82adf9cb4716d4d9f6eb54f80337 [2020-10-20 02:44:47,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 02:44:47,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 02:44:47,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 02:44:47,246 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 02:44:47,246 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 02:44:47,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/stack_longest-1.i [2020-10-20 02:44:47,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5628719cb/5b43e228389f4478baa86b8eb78bbca1/FLAG4f12ac4a3 [2020-10-20 02:44:47,792 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 02:44:47,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stack_longest-1.i [2020-10-20 02:44:47,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5628719cb/5b43e228389f4478baa86b8eb78bbca1/FLAG4f12ac4a3 [2020-10-20 02:44:48,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5628719cb/5b43e228389f4478baa86b8eb78bbca1 [2020-10-20 02:44:48,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 02:44:48,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 02:44:48,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 02:44:48,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 02:44:48,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 02:44:48,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:44:48" (1/1) ... [2020-10-20 02:44:48,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1ee11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:48, skipping insertion in model container [2020-10-20 02:44:48,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:44:48" (1/1) ... [2020-10-20 02:44:48,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 02:44:48,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 02:44:48,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:44:48,849 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 02:44:48,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:44:49,088 INFO L208 MainTranslator]: Completed translation [2020-10-20 02:44:49,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:49 WrapperNode [2020-10-20 02:44:49,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 02:44:49,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 02:44:49,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 02:44:49,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 02:44:49,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:49" (1/1) ... [2020-10-20 02:44:49,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:49" (1/1) ... [2020-10-20 02:44:49,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 02:44:49,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 02:44:49,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 02:44:49,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 02:44:49,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:49" (1/1) ... [2020-10-20 02:44:49,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:49" (1/1) ... [2020-10-20 02:44:49,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:49" (1/1) ... [2020-10-20 02:44:49,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:49" (1/1) ... [2020-10-20 02:44:49,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:49" (1/1) ... [2020-10-20 02:44:49,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:49" (1/1) ... [2020-10-20 02:44:49,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:49" (1/1) ... [2020-10-20 02:44:49,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 02:44:49,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 02:44:49,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 02:44:49,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 02:44:49,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 02:44:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-20 02:44:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-20 02:44:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-20 02:44:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-20 02:44:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 02:44:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 02:44:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 02:44:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 02:44:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-20 02:44:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 02:44:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 02:44:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 02:44:49,276 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 02:44:49,758 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 02:44:49,759 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-20 02:44:49,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:44:49 BoogieIcfgContainer [2020-10-20 02:44:49,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 02:44:49,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 02:44:49,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 02:44:49,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 02:44:49,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 02:44:48" (1/3) ... [2020-10-20 02:44:49,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ef5919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:44:49, skipping insertion in model container [2020-10-20 02:44:49,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:49" (2/3) ... [2020-10-20 02:44:49,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ef5919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:44:49, skipping insertion in model container [2020-10-20 02:44:49,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:44:49" (3/3) ... [2020-10-20 02:44:49,770 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2020-10-20 02:44:49,782 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 02:44:49,782 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 02:44:49,790 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-20 02:44:49,791 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 02:44:49,828 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,829 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,829 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,830 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,830 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,831 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,831 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,831 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,832 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,834 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,834 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,835 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,835 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,835 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,836 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,836 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,836 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,836 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,837 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,837 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,837 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,838 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,838 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,838 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,839 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,839 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,840 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,840 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,840 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,840 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,841 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,841 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,841 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,842 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,842 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,843 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,843 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,843 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,844 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,844 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,845 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,845 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,845 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,845 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,845 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,846 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,846 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,847 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,848 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,848 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,848 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,848 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,849 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,849 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,849 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,850 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,850 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,850 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,850 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,851 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,851 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,852 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,852 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,852 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,853 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,854 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,854 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,854 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,855 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,855 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,855 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,855 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,861 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,862 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,863 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,863 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,863 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,863 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,864 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,864 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,864 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,865 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,865 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,866 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,866 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,867 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,871 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,871 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,871 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,871 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,872 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,872 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,872 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,872 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,873 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,873 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,873 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,874 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,874 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,874 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,874 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,874 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,875 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,875 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,875 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,876 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,876 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,876 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,876 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,877 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,877 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,877 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,882 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,882 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,882 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,883 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,883 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,883 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,883 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,888 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,889 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,889 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,889 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,889 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,890 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,890 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,890 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,890 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,891 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,891 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,891 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,891 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,892 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,892 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,892 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,892 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,892 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,893 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,893 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,893 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,907 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,907 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,908 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,908 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,913 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,913 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,913 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,914 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,914 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,914 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,914 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,914 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,915 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,915 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,915 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,915 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,916 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,916 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,916 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,916 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,916 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,916 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,917 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,917 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,917 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:49,925 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-20 02:44:49,938 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-20 02:44:49,958 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 02:44:49,958 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 02:44:49,958 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 02:44:49,958 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 02:44:49,959 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 02:44:49,959 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 02:44:49,959 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 02:44:49,959 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 02:44:49,975 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 02:44:49,977 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 159 transitions, 340 flow [2020-10-20 02:44:49,980 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 159 transitions, 340 flow [2020-10-20 02:44:49,982 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 152 places, 159 transitions, 340 flow [2020-10-20 02:44:50,059 INFO L129 PetriNetUnfolder]: 13/159 cut-off events. [2020-10-20 02:44:50,060 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-20 02:44:50,071 INFO L80 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 159 events. 13/159 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 433 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 123. Up to 3 conditions per place. [2020-10-20 02:44:50,085 INFO L117 LiptonReduction]: Number of co-enabled transitions 7732 [2020-10-20 02:44:52,161 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-20 02:44:53,206 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-20 02:44:53,332 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-20 02:44:54,336 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 133 [2020-10-20 02:44:54,725 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-20 02:44:54,770 INFO L132 LiptonReduction]: Checked pairs total: 12409 [2020-10-20 02:44:54,770 INFO L134 LiptonReduction]: Total number of compositions: 150 [2020-10-20 02:44:54,776 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 41 transitions, 104 flow [2020-10-20 02:44:54,806 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-10-20 02:44:54,808 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-10-20 02:44:54,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 02:44:54,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:54,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 02:44:54,816 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:44:54,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:54,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1799512577, now seen corresponding path program 1 times [2020-10-20 02:44:54,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:54,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291510886] [2020-10-20 02:44:54,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:55,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:44:55,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291510886] [2020-10-20 02:44:55,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:55,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:44:55,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016943448] [2020-10-20 02:44:55,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:44:55,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:55,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:44:55,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:55,061 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-10-20 02:44:55,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:55,148 INFO L93 Difference]: Finished difference Result 602 states and 1541 transitions. [2020-10-20 02:44:55,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:44:55,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-20 02:44:55,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:55,172 INFO L225 Difference]: With dead ends: 602 [2020-10-20 02:44:55,173 INFO L226 Difference]: Without dead ends: 580 [2020-10-20 02:44:55,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:55,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-10-20 02:44:55,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 427. [2020-10-20 02:44:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-10-20 02:44:55,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1148 transitions. [2020-10-20 02:44:55,262 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1148 transitions. Word has length 6 [2020-10-20 02:44:55,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:55,263 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 1148 transitions. [2020-10-20 02:44:55,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:44:55,266 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1148 transitions. [2020-10-20 02:44:55,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 02:44:55,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:55,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:55,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 02:44:55,268 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:44:55,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:55,268 INFO L82 PathProgramCache]: Analyzing trace with hash 426072580, now seen corresponding path program 1 times [2020-10-20 02:44:55,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:55,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484930604] [2020-10-20 02:44:55,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:44:55,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484930604] [2020-10-20 02:44:55,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:55,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:44:55,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626692019] [2020-10-20 02:44:55,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:44:55,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:55,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:44:55,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:55,366 INFO L87 Difference]: Start difference. First operand 427 states and 1148 transitions. Second operand 3 states. [2020-10-20 02:44:55,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:55,402 INFO L93 Difference]: Finished difference Result 530 states and 1370 transitions. [2020-10-20 02:44:55,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:44:55,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 02:44:55,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:55,408 INFO L225 Difference]: With dead ends: 530 [2020-10-20 02:44:55,408 INFO L226 Difference]: Without dead ends: 508 [2020-10-20 02:44:55,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:55,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-20 02:44:55,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 468. [2020-10-20 02:44:55,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-10-20 02:44:55,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 1250 transitions. [2020-10-20 02:44:55,441 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 1250 transitions. Word has length 8 [2020-10-20 02:44:55,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:55,442 INFO L481 AbstractCegarLoop]: Abstraction has 468 states and 1250 transitions. [2020-10-20 02:44:55,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:44:55,443 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 1250 transitions. [2020-10-20 02:44:55,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 02:44:55,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:55,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:55,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 02:44:55,445 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:44:55,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:55,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1325926744, now seen corresponding path program 1 times [2020-10-20 02:44:55,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:55,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75922088] [2020-10-20 02:44:55,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:55,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:44:55,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75922088] [2020-10-20 02:44:55,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:55,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:44:55,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865088381] [2020-10-20 02:44:55,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:44:55,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:55,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:44:55,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:55,549 INFO L87 Difference]: Start difference. First operand 468 states and 1250 transitions. Second operand 3 states. [2020-10-20 02:44:55,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:55,581 INFO L93 Difference]: Finished difference Result 504 states and 1343 transitions. [2020-10-20 02:44:55,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:44:55,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-20 02:44:55,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:55,589 INFO L225 Difference]: With dead ends: 504 [2020-10-20 02:44:55,590 INFO L226 Difference]: Without dead ends: 504 [2020-10-20 02:44:55,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:55,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-10-20 02:44:55,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-10-20 02:44:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-10-20 02:44:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1343 transitions. [2020-10-20 02:44:55,638 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1343 transitions. Word has length 10 [2020-10-20 02:44:55,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:55,638 INFO L481 AbstractCegarLoop]: Abstraction has 504 states and 1343 transitions. [2020-10-20 02:44:55,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:44:55,639 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1343 transitions. [2020-10-20 02:44:55,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 02:44:55,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:55,642 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:55,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 02:44:55,643 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:44:55,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:55,643 INFO L82 PathProgramCache]: Analyzing trace with hash 246837902, now seen corresponding path program 1 times [2020-10-20 02:44:55,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:55,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169746208] [2020-10-20 02:44:55,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:55,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:44:55,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169746208] [2020-10-20 02:44:55,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925332329] [2020-10-20 02:44:55,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 02:44:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:55,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 02:44:55,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 02:44:55,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:44:55,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 02:44:55,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-20 02:44:55,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144302037] [2020-10-20 02:44:55,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 02:44:55,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:55,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 02:44:55,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 02:44:55,940 INFO L87 Difference]: Start difference. First operand 504 states and 1343 transitions. Second operand 7 states. [2020-10-20 02:44:56,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:56,066 INFO L93 Difference]: Finished difference Result 940 states and 2424 transitions. [2020-10-20 02:44:56,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 02:44:56,067 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-20 02:44:56,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:56,073 INFO L225 Difference]: With dead ends: 940 [2020-10-20 02:44:56,073 INFO L226 Difference]: Without dead ends: 940 [2020-10-20 02:44:56,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 02:44:56,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2020-10-20 02:44:56,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 688. [2020-10-20 02:44:56,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2020-10-20 02:44:56,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1842 transitions. [2020-10-20 02:44:56,103 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1842 transitions. Word has length 14 [2020-10-20 02:44:56,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:56,104 INFO L481 AbstractCegarLoop]: Abstraction has 688 states and 1842 transitions. [2020-10-20 02:44:56,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 02:44:56,104 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1842 transitions. [2020-10-20 02:44:56,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 02:44:56,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:56,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:56,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 02:44:56,325 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:44:56,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:56,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1088801954, now seen corresponding path program 1 times [2020-10-20 02:44:56,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:56,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263105523] [2020-10-20 02:44:56,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:44:56,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263105523] [2020-10-20 02:44:56,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:56,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 02:44:56,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432196930] [2020-10-20 02:44:56,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:44:56,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:56,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:44:56,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:56,375 INFO L87 Difference]: Start difference. First operand 688 states and 1842 transitions. Second operand 3 states. [2020-10-20 02:44:56,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:56,399 INFO L93 Difference]: Finished difference Result 343 states and 775 transitions. [2020-10-20 02:44:56,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:44:56,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-20 02:44:56,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:56,402 INFO L225 Difference]: With dead ends: 343 [2020-10-20 02:44:56,402 INFO L226 Difference]: Without dead ends: 339 [2020-10-20 02:44:56,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:56,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-10-20 02:44:56,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 313. [2020-10-20 02:44:56,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-10-20 02:44:56,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 700 transitions. [2020-10-20 02:44:56,415 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 700 transitions. Word has length 16 [2020-10-20 02:44:56,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:56,415 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 700 transitions. [2020-10-20 02:44:56,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:44:56,416 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 700 transitions. [2020-10-20 02:44:56,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 02:44:56,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:56,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:56,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 02:44:56,418 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:44:56,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:56,418 INFO L82 PathProgramCache]: Analyzing trace with hash 678030022, now seen corresponding path program 1 times [2020-10-20 02:44:56,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:56,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946343747] [2020-10-20 02:44:56,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:56,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:44:56,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946343747] [2020-10-20 02:44:56,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:56,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 02:44:56,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327606235] [2020-10-20 02:44:56,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 02:44:56,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:56,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 02:44:56,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 02:44:56,522 INFO L87 Difference]: Start difference. First operand 313 states and 700 transitions. Second operand 5 states. [2020-10-20 02:44:56,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:56,618 INFO L93 Difference]: Finished difference Result 473 states and 1056 transitions. [2020-10-20 02:44:56,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 02:44:56,619 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 02:44:56,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:56,622 INFO L225 Difference]: With dead ends: 473 [2020-10-20 02:44:56,623 INFO L226 Difference]: Without dead ends: 473 [2020-10-20 02:44:56,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 02:44:56,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-10-20 02:44:56,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 351. [2020-10-20 02:44:56,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-10-20 02:44:56,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 791 transitions. [2020-10-20 02:44:56,636 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 791 transitions. Word has length 17 [2020-10-20 02:44:56,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:56,636 INFO L481 AbstractCegarLoop]: Abstraction has 351 states and 791 transitions. [2020-10-20 02:44:56,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 02:44:56,637 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 791 transitions. [2020-10-20 02:44:56,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-20 02:44:56,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:56,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:56,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 02:44:56,640 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:44:56,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:56,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1325689153, now seen corresponding path program 1 times [2020-10-20 02:44:56,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:56,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97677310] [2020-10-20 02:44:56,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:56,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:44:56,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97677310] [2020-10-20 02:44:56,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:56,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 02:44:56,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725305766] [2020-10-20 02:44:56,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 02:44:56,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:56,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 02:44:56,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-20 02:44:56,958 INFO L87 Difference]: Start difference. First operand 351 states and 791 transitions. Second operand 9 states. [2020-10-20 02:44:57,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:57,274 INFO L93 Difference]: Finished difference Result 653 states and 1454 transitions. [2020-10-20 02:44:57,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 02:44:57,275 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-20 02:44:57,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:57,279 INFO L225 Difference]: With dead ends: 653 [2020-10-20 02:44:57,279 INFO L226 Difference]: Without dead ends: 653 [2020-10-20 02:44:57,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-20 02:44:57,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2020-10-20 02:44:57,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 484. [2020-10-20 02:44:57,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2020-10-20 02:44:57,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 1129 transitions. [2020-10-20 02:44:57,295 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 1129 transitions. Word has length 21 [2020-10-20 02:44:57,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:57,296 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 1129 transitions. [2020-10-20 02:44:57,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 02:44:57,296 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 1129 transitions. [2020-10-20 02:44:57,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-20 02:44:57,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:57,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:57,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 02:44:57,298 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:44:57,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:57,298 INFO L82 PathProgramCache]: Analyzing trace with hash 308487363, now seen corresponding path program 2 times [2020-10-20 02:44:57,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:57,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189034924] [2020-10-20 02:44:57,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:57,864 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 32 [2020-10-20 02:44:58,003 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 20 [2020-10-20 02:44:58,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:44:58,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189034924] [2020-10-20 02:44:58,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:58,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 02:44:58,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551746635] [2020-10-20 02:44:58,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 02:44:58,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:58,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 02:44:58,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 02:44:58,185 INFO L87 Difference]: Start difference. First operand 484 states and 1129 transitions. Second operand 9 states. [2020-10-20 02:44:58,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:58,618 INFO L93 Difference]: Finished difference Result 765 states and 1739 transitions. [2020-10-20 02:44:58,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 02:44:58,619 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-20 02:44:58,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:58,624 INFO L225 Difference]: With dead ends: 765 [2020-10-20 02:44:58,624 INFO L226 Difference]: Without dead ends: 765 [2020-10-20 02:44:58,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-20 02:44:58,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-10-20 02:44:58,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 470. [2020-10-20 02:44:58,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-10-20 02:44:58,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1092 transitions. [2020-10-20 02:44:58,639 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1092 transitions. Word has length 21 [2020-10-20 02:44:58,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:58,639 INFO L481 AbstractCegarLoop]: Abstraction has 470 states and 1092 transitions. [2020-10-20 02:44:58,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 02:44:58,640 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1092 transitions. [2020-10-20 02:44:58,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 02:44:58,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:58,641 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-20 02:44:58,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 02:44:58,641 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:44:58,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:58,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1898624995, now seen corresponding path program 2 times [2020-10-20 02:44:58,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:58,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520629466] [2020-10-20 02:44:58,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:44:58,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520629466] [2020-10-20 02:44:58,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430963088] [2020-10-20 02:44:58,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 02:44:58,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 02:44:58,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 02:44:58,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 02:44:58,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 02:44:58,843 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:44:58,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 02:44:58,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-20 02:44:58,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698384543] [2020-10-20 02:44:58,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 02:44:58,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:58,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 02:44:58,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 02:44:58,845 INFO L87 Difference]: Start difference. First operand 470 states and 1092 transitions. Second operand 9 states. [2020-10-20 02:44:58,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:58,926 INFO L93 Difference]: Finished difference Result 778 states and 1761 transitions. [2020-10-20 02:44:58,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 02:44:58,927 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-20 02:44:58,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:58,931 INFO L225 Difference]: With dead ends: 778 [2020-10-20 02:44:58,931 INFO L226 Difference]: Without dead ends: 778 [2020-10-20 02:44:58,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-20 02:44:58,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2020-10-20 02:44:58,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 560. [2020-10-20 02:44:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-20 02:44:58,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 1291 transitions. [2020-10-20 02:44:58,949 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 1291 transitions. Word has length 22 [2020-10-20 02:44:58,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:58,949 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 1291 transitions. [2020-10-20 02:44:58,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 02:44:58,950 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 1291 transitions. [2020-10-20 02:44:58,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 02:44:58,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:58,951 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:59,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 02:44:59,165 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:44:59,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:59,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1380091070, now seen corresponding path program 1 times [2020-10-20 02:44:59,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:59,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524659585] [2020-10-20 02:44:59,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 02:44:59,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 02:44:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 02:44:59,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 02:44:59,253 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 02:44:59,253 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 02:44:59,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 02:44:59,254 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-20 02:44:59,255 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-20 02:44:59,262 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [638] [638] L983-6-->L951: Formula: (let ((.cse0 (select |#pthreadsMutex_In989683802| |~#m~0.base_In989683802|)) (.cse1 (mod t1Thread1of1ForFork0_~tmp~0_Out989683802 4294967296))) (and (= |t1Thread1of1ForFork0_#t~nondet46_In989683802| t1Thread1of1ForFork0_~tmp~0_Out989683802) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out989683802| |~#arr~0.base_In989683802|) (= (select .cse0 |~#m~0.offset_In989683802|) 0) (< t1Thread1of1ForFork0_~i~0_In989683802 800) (= |~#arr~0.offset_In989683802| |t1Thread1of1ForFork0_push_#in~stack.offset_Out989683802|) (= .cse1 |t1Thread1of1ForFork0_push_#in~x_Out989683802|) (= |#pthreadsMutex_Out989683802| (store |#pthreadsMutex_In989683802| |~#m~0.base_In989683802| (store .cse0 |~#m~0.offset_In989683802| 1))) (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out989683802 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out989683802|) (= 1 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out989683802|) (< .cse1 800))) InVars {~#arr~0.offset=|~#arr~0.offset_In989683802|, #pthreadsMutex=|#pthreadsMutex_In989683802|, ~#m~0.base=|~#m~0.base_In989683802|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In989683802, ~#m~0.offset=|~#m~0.offset_In989683802|, t1Thread1of1ForFork0_#t~nondet46=|t1Thread1of1ForFork0_#t~nondet46_In989683802|, ~#arr~0.base=|~#arr~0.base_In989683802|} OutVars{~#arr~0.offset=|~#arr~0.offset_In989683802|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out989683802|, #pthreadsMutex=|#pthreadsMutex_Out989683802|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In989683802, t1Thread1of1ForFork0_push_#t~nondet36=|t1Thread1of1ForFork0_push_#t~nondet36_Out989683802|, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out989683802, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out989683802|, t1Thread1of1ForFork0_push_#t~ret38=|t1Thread1of1ForFork0_push_#t~ret38_Out989683802|, ~#m~0.base=|~#m~0.base_In989683802|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out989683802, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out989683802, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out989683802|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_Out989683802, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out989683802, ~#m~0.offset=|~#m~0.offset_In989683802|, t1Thread1of1ForFork0_#t~nondet46=|t1Thread1of1ForFork0_#t~nondet46_Out989683802|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out989683802|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out989683802|, ~#arr~0.base=|~#arr~0.base_In989683802|, t1Thread1of1ForFork0_#t~nondet45=|t1Thread1of1ForFork0_#t~nondet45_Out989683802|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, #pthreadsMutex, t1Thread1of1ForFork0_push_#t~nondet36, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#t~ret38, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_~tmp~0, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_#t~nondet46, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond, t1Thread1of1ForFork0_push_#in~stack.offset, t1Thread1of1ForFork0_#t~nondet45] because there is no mapped edge [2020-10-20 02:44:59,271 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [632] [632] L1003-3-->L998-6: Formula: (and (= (+ t2Thread1of1ForFork1_~i~1_Out-1535324416 (- 1)) t2Thread1of1ForFork1_~i~1_In-1535324416) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret50_In-1535324416|)) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In-1535324416| |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out-1535324416|) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In-1535324416| |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out-1535324416|) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret50_In-1535324416| 2147483648)) (<= |t2Thread1of1ForFork1_#t~ret50_In-1535324416| 2147483647) (= |#pthreadsMutex_Out-1535324416| (store |#pthreadsMutex_In-1535324416| |~#m~0.base_In-1535324416| (store (select |#pthreadsMutex_In-1535324416| |~#m~0.base_In-1535324416|) |~#m~0.offset_In-1535324416| 0)))) InVars {t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In-1535324416|, #pthreadsMutex=|#pthreadsMutex_In-1535324416|, ~#m~0.base=|~#m~0.base_In-1535324416|, ~#m~0.offset=|~#m~0.offset_In-1535324416|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_In-1535324416|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In-1535324416, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In-1535324416|} OutVars{#pthreadsMutex=|#pthreadsMutex_Out-1535324416|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out-1535324416|, ~#m~0.base=|~#m~0.base_In-1535324416|, ~#m~0.offset=|~#m~0.offset_In-1535324416|, t2Thread1of1ForFork1_#t~post48=|t2Thread1of1ForFork1_#t~post48_Out-1535324416|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_Out-1535324416|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out-1535324416, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out-1535324416|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_reach_error_#t~nondet2.base, t2Thread1of1ForFork1_#t~post48, t2Thread1of1ForFork1_#t~ret50, t2Thread1of1ForFork1_~i~1, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset] because there is no mapped edge [2020-10-20 02:44:59,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 02:44:59 BasicIcfg [2020-10-20 02:44:59,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 02:44:59,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 02:44:59,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 02:44:59,320 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 02:44:59,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:44:49" (3/4) ... [2020-10-20 02:44:59,323 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 02:44:59,326 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [638] [638] L983-6-->L951: Formula: (let ((.cse0 (select |#pthreadsMutex_In989683802| |~#m~0.base_In989683802|)) (.cse1 (mod t1Thread1of1ForFork0_~tmp~0_Out989683802 4294967296))) (and (= |t1Thread1of1ForFork0_#t~nondet46_In989683802| t1Thread1of1ForFork0_~tmp~0_Out989683802) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out989683802| |~#arr~0.base_In989683802|) (= (select .cse0 |~#m~0.offset_In989683802|) 0) (< t1Thread1of1ForFork0_~i~0_In989683802 800) (= |~#arr~0.offset_In989683802| |t1Thread1of1ForFork0_push_#in~stack.offset_Out989683802|) (= .cse1 |t1Thread1of1ForFork0_push_#in~x_Out989683802|) (= |#pthreadsMutex_Out989683802| (store |#pthreadsMutex_In989683802| |~#m~0.base_In989683802| (store .cse0 |~#m~0.offset_In989683802| 1))) (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out989683802 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out989683802|) (= 1 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out989683802|) (< .cse1 800))) InVars {~#arr~0.offset=|~#arr~0.offset_In989683802|, #pthreadsMutex=|#pthreadsMutex_In989683802|, ~#m~0.base=|~#m~0.base_In989683802|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In989683802, ~#m~0.offset=|~#m~0.offset_In989683802|, t1Thread1of1ForFork0_#t~nondet46=|t1Thread1of1ForFork0_#t~nondet46_In989683802|, ~#arr~0.base=|~#arr~0.base_In989683802|} OutVars{~#arr~0.offset=|~#arr~0.offset_In989683802|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out989683802|, #pthreadsMutex=|#pthreadsMutex_Out989683802|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In989683802, t1Thread1of1ForFork0_push_#t~nondet36=|t1Thread1of1ForFork0_push_#t~nondet36_Out989683802|, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out989683802, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out989683802|, t1Thread1of1ForFork0_push_#t~ret38=|t1Thread1of1ForFork0_push_#t~ret38_Out989683802|, ~#m~0.base=|~#m~0.base_In989683802|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out989683802, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out989683802, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out989683802|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_Out989683802, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out989683802, ~#m~0.offset=|~#m~0.offset_In989683802|, t1Thread1of1ForFork0_#t~nondet46=|t1Thread1of1ForFork0_#t~nondet46_Out989683802|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out989683802|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out989683802|, ~#arr~0.base=|~#arr~0.base_In989683802|, t1Thread1of1ForFork0_#t~nondet45=|t1Thread1of1ForFork0_#t~nondet45_Out989683802|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, #pthreadsMutex, t1Thread1of1ForFork0_push_#t~nondet36, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#t~ret38, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_~tmp~0, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_#t~nondet46, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond, t1Thread1of1ForFork0_push_#in~stack.offset, t1Thread1of1ForFork0_#t~nondet45] because there is no mapped edge [2020-10-20 02:44:59,335 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [632] [632] L1003-3-->L998-6: Formula: (and (= (+ t2Thread1of1ForFork1_~i~1_Out-1535324416 (- 1)) t2Thread1of1ForFork1_~i~1_In-1535324416) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret50_In-1535324416|)) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In-1535324416| |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out-1535324416|) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In-1535324416| |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out-1535324416|) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret50_In-1535324416| 2147483648)) (<= |t2Thread1of1ForFork1_#t~ret50_In-1535324416| 2147483647) (= |#pthreadsMutex_Out-1535324416| (store |#pthreadsMutex_In-1535324416| |~#m~0.base_In-1535324416| (store (select |#pthreadsMutex_In-1535324416| |~#m~0.base_In-1535324416|) |~#m~0.offset_In-1535324416| 0)))) InVars {t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In-1535324416|, #pthreadsMutex=|#pthreadsMutex_In-1535324416|, ~#m~0.base=|~#m~0.base_In-1535324416|, ~#m~0.offset=|~#m~0.offset_In-1535324416|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_In-1535324416|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In-1535324416, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In-1535324416|} OutVars{#pthreadsMutex=|#pthreadsMutex_Out-1535324416|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out-1535324416|, ~#m~0.base=|~#m~0.base_In-1535324416|, ~#m~0.offset=|~#m~0.offset_In-1535324416|, t2Thread1of1ForFork1_#t~post48=|t2Thread1of1ForFork1_#t~post48_Out-1535324416|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_Out-1535324416|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out-1535324416, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out-1535324416|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_reach_error_#t~nondet2.base, t2Thread1of1ForFork1_#t~post48, t2Thread1of1ForFork1_#t~ret50, t2Thread1of1ForFork1_~i~1, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset] because there is no mapped edge [2020-10-20 02:44:59,401 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 02:44:59,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 02:44:59,403 INFO L168 Benchmark]: Toolchain (without parser) took 11277.04 ms. Allocated memory was 34.1 MB in the beginning and 94.9 MB in the end (delta: 60.8 MB). Free memory was 9.0 MB in the beginning and 7.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 62.3 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:59,403 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 33.0 MB. Free memory was 18.0 MB in the beginning and 17.9 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 02:44:59,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 958.36 ms. Allocated memory was 34.1 MB in the beginning and 47.2 MB in the end (delta: 13.1 MB). Free memory was 8.1 MB in the beginning and 12.6 MB in the end (delta: -4.5 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:59,405 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.60 ms. Allocated memory was 47.2 MB in the beginning and 46.7 MB in the end (delta: -524.3 kB). Free memory was 12.3 MB in the beginning and 27.1 MB in the end (delta: -14.8 MB). Peak memory consumption was 422.0 kB. Max. memory is 14.3 GB. [2020-10-20 02:44:59,405 INFO L168 Benchmark]: Boogie Preprocessor took 33.67 ms. Allocated memory is still 46.7 MB. Free memory was 27.1 MB in the beginning and 25.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:59,406 INFO L168 Benchmark]: RCFGBuilder took 552.09 ms. Allocated memory was 46.7 MB in the beginning and 49.8 MB in the end (delta: 3.1 MB). Free memory was 24.9 MB in the beginning and 28.1 MB in the end (delta: -3.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:59,407 INFO L168 Benchmark]: TraceAbstraction took 9556.71 ms. Allocated memory was 49.8 MB in the beginning and 94.9 MB in the end (delta: 45.1 MB). Free memory was 27.7 MB in the beginning and 18.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 54.0 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:59,407 INFO L168 Benchmark]: Witness Printer took 81.40 ms. Allocated memory is still 94.9 MB. Free memory was 18.8 MB in the beginning and 7.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:59,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 33.0 MB. Free memory was 18.0 MB in the beginning and 17.9 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 958.36 ms. Allocated memory was 34.1 MB in the beginning and 47.2 MB in the end (delta: 13.1 MB). Free memory was 8.1 MB in the beginning and 12.6 MB in the end (delta: -4.5 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 84.60 ms. Allocated memory was 47.2 MB in the beginning and 46.7 MB in the end (delta: -524.3 kB). Free memory was 12.3 MB in the beginning and 27.1 MB in the end (delta: -14.8 MB). Peak memory consumption was 422.0 kB. Max. memory is 14.3 GB. * Boogie Preprocessor took 33.67 ms. Allocated memory is still 46.7 MB. Free memory was 27.1 MB in the beginning and 25.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 552.09 ms. Allocated memory was 46.7 MB in the beginning and 49.8 MB in the end (delta: 3.1 MB). Free memory was 24.9 MB in the beginning and 28.1 MB in the end (delta: -3.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 9556.71 ms. Allocated memory was 49.8 MB in the beginning and 94.9 MB in the end (delta: 45.1 MB). Free memory was 27.7 MB in the beginning and 18.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 54.0 MB. Max. memory is 14.3 GB. * Witness Printer took 81.40 ms. Allocated memory is still 94.9 MB. Free memory was 18.8 MB in the beginning and 7.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5476 VarBasedMoverChecksPositive, 103 VarBasedMoverChecksNegative, 39 SemBasedMoverChecksPositive, 64 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 292 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.7s, 152 PlacesBefore, 40 PlacesAfterwards, 159 TransitionsBefore, 41 TransitionsAfterwards, 7732 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 89 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 6 ChoiceCompositions, 150 TotalNumberOfCompositions, 12409 MoverChecksTotal - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L927] 0 static int top=0; [L928] 0 static unsigned int arr[(800)]; [L929] 0 pthread_mutex_t m; [L930] 0 _Bool flag=(0); [L1012] 0 pthread_t id1, id2; [L1014] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={5:0}, flag=0, m={7:0}, top=0] [L1015] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={5:0}, flag=0, m={7:0}, top=0] [L997] 2 int i; [L998] 2 i=0 VAL [arr={5:0}, flag=0, m={7:0}, top=0] [L981] 1 int i; [L982] 1 unsigned int tmp; [L983] 1 i=0 VAL [arr={5:0}, flag=0, m={7:0}, top=0] [L953] COND FALSE 1 !(top==(800)) VAL [arr={5:0}, flag=0, m={7:0}, top=0] [L945] 1 return top; [L960] 1 stack[get_top()] = x [L937] 1 top++ [L963] 1 return 0; [L988] COND FALSE 1 !(push(arr,tmp)==(-1)) [L990] 1 flag=(1) VAL [arr={5:0}, flag=1, m={7:0}, top=1] [L983] 1 i++ VAL [arr={5:0}, flag=1, m={7:0}, top=1] [L998] COND TRUE 2 i<(800) [L1001] COND TRUE 2 \read(flag) [L945] 2 return top; VAL [arr={5:0}, flag=1, m={7:0}, top=1] [L967] COND FALSE 2 !(get_top()==0) [L941] 2 top-- [L945] 2 return top; [L975] EXPR 2 stack[get_top()] [L975] 2 return stack[get_top()]; [L998] COND TRUE 2 i<(800) [L1001] COND TRUE 2 \read(flag) [L945] 2 return top; [L967] COND TRUE 2 get_top()==0 [L970] 2 return (-2); [L1003] COND TRUE 2 !(pop(arr)!=(-2)) [L12] COND FALSE 2 !(0) [L12] 2 __assert_fail ("0", "stack_longest-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arr={5:0}, flag=1, m={7:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 146 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.2s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 411 SDtfs, 517 SDslu, 853 SDs, 0 SdLazy, 449 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=688occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1275 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 43902 SizeOfPredicates, 5 NumberOfNonLiveVariables, 365 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 6/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...