./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/stack_longer-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_longer-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 cb9e4d02c018efc005ed04e1bf073437f6c0f815 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:44:44,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 02:44:44,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 02:44:44,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 02:44:44,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 02:44:44,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 02:44:44,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 02:44:44,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 02:44:44,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 02:44:44,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 02:44:44,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 02:44:44,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 02:44:44,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 02:44:44,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 02:44:44,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 02:44:44,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 02:44:44,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 02:44:44,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 02:44:44,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 02:44:44,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 02:44:44,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 02:44:44,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 02:44:44,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 02:44:44,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 02:44:44,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 02:44:44,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 02:44:44,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 02:44:44,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 02:44:44,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 02:44:44,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 02:44:44,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 02:44:44,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 02:44:44,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 02:44:44,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 02:44:44,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 02:44:44,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 02:44:44,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 02:44:44,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 02:44:44,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 02:44:44,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 02:44:44,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 02:44:44,324 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 02:44:44,368 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 02:44:44,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 02:44:44,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 02:44:44,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 02:44:44,371 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 02:44:44,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 02:44:44,372 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 02:44:44,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 02:44:44,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 02:44:44,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 02:44:44,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 02:44:44,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 02:44:44,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 02:44:44,375 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 02:44:44,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 02:44:44,375 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 02:44:44,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 02:44:44,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 02:44:44,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 02:44:44,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 02:44:44,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 02:44:44,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 02:44:44,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 02:44:44,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 02:44:44,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 02:44:44,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 02:44:44,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 02:44:44,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 02:44:44,379 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 02:44:44,379 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 -> cb9e4d02c018efc005ed04e1bf073437f6c0f815 [2020-10-20 02:44:44,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 02:44:44,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 02:44:44,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 02:44:44,601 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 02:44:44,601 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 02:44:44,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/stack_longer-1.i [2020-10-20 02:44:44,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317e8fbe4/38f6b8b9feff4b87b30b1668fe5655a9/FLAG457949313 [2020-10-20 02:44:45,333 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 02:44:45,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stack_longer-1.i [2020-10-20 02:44:45,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317e8fbe4/38f6b8b9feff4b87b30b1668fe5655a9/FLAG457949313 [2020-10-20 02:44:45,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317e8fbe4/38f6b8b9feff4b87b30b1668fe5655a9 [2020-10-20 02:44:45,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 02:44:45,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 02:44:45,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 02:44:45,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 02:44:45,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 02:44:45,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:44:45" (1/1) ... [2020-10-20 02:44:45,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311ae6af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:45, skipping insertion in model container [2020-10-20 02:44:45,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:44:45" (1/1) ... [2020-10-20 02:44:45,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 02:44:45,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 02:44:46,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:44:46,207 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 02:44:46,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:44:46,434 INFO L208 MainTranslator]: Completed translation [2020-10-20 02:44:46,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46 WrapperNode [2020-10-20 02:44:46,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 02:44:46,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 02:44:46,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 02:44:46,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 02:44:46,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46" (1/1) ... [2020-10-20 02:44:46,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46" (1/1) ... [2020-10-20 02:44:46,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 02:44:46,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 02:44:46,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 02:44:46,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 02:44:46,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46" (1/1) ... [2020-10-20 02:44:46,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46" (1/1) ... [2020-10-20 02:44:46,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46" (1/1) ... [2020-10-20 02:44:46,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46" (1/1) ... [2020-10-20 02:44:46,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46" (1/1) ... [2020-10-20 02:44:46,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46" (1/1) ... [2020-10-20 02:44:46,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46" (1/1) ... [2020-10-20 02:44:46,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 02:44:46,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 02:44:46,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 02:44:46,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 02:44:46,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46" (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 02:44:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-20 02:44:46,623 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-20 02:44:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-20 02:44:46,623 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-20 02:44:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 02:44:46,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 02:44:46,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 02:44:46,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 02:44:46,624 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-20 02:44:46,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 02:44:46,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 02:44:46,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 02:44:46,626 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 02:44:47,160 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 02:44:47,160 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-20 02:44:47,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:44:47 BoogieIcfgContainer [2020-10-20 02:44:47,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 02:44:47,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 02:44:47,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 02:44:47,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 02:44:47,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 02:44:45" (1/3) ... [2020-10-20 02:44:47,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497ea007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:44:47, skipping insertion in model container [2020-10-20 02:44:47,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46" (2/3) ... [2020-10-20 02:44:47,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497ea007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:44:47, skipping insertion in model container [2020-10-20 02:44:47,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:44:47" (3/3) ... [2020-10-20 02:44:47,173 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2020-10-20 02:44:47,186 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 02:44:47,186 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 02:44:47,195 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-20 02:44:47,196 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 02:44:47,236 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,236 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,237 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,237 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,237 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,238 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,238 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,238 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,239 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,239 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,239 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,239 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,240 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,240 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,240 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,241 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,241 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,241 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,242 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,242 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,242 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,242 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,243 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,243 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,243 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,244 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,244 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,244 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,244 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,245 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,245 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,245 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,245 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,246 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,246 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,246 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,246 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,247 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,247 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,247 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,248 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,248 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,248 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,248 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,249 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,249 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,249 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,249 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,250 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,250 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,250 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,251 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,251 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,251 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,251 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,252 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,252 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,252 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,252 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,253 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,253 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,253 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,254 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,254 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,254 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,255 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,255 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,255 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,255 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,256 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,256 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,256 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,257 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,258 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,258 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,258 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,259 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,259 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,259 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,259 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,260 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,260 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,260 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,261 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,261 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,261 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,262 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,262 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,262 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,262 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,263 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,263 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,263 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,263 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,264 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,264 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,264 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,265 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,265 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,265 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,265 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,266 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,266 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,266 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,267 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,267 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,267 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,267 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,268 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,268 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,268 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,268 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,269 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,269 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,269 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,270 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,270 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,270 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,271 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,271 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,271 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,272 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,272 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,272 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,272 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,273 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,273 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,273 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,284 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,285 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,285 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,285 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,286 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,286 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,286 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,286 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,287 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,287 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,287 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,288 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,288 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,292 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,292 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,293 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,293 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,293 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,293 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,294 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,294 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,294 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,294 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,295 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,295 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,295 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,296 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,296 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,296 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,296 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,297 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,297 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,297 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,297 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,298 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,298 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,298 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,298 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,310 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,310 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,311 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,311 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,311 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,311 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,312 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,312 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,312 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,312 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,313 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,313 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,313 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,313 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,314 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,314 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,314 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,315 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,315 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,315 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,315 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,323 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-20 02:44:47,339 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-20 02:44:47,359 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 02:44:47,359 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 02:44:47,359 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 02:44:47,359 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 02:44:47,360 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 02:44:47,360 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 02:44:47,360 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 02:44:47,360 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 02:44:47,377 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 02:44:47,381 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 159 transitions, 340 flow [2020-10-20 02:44:47,384 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 159 transitions, 340 flow [2020-10-20 02:44:47,386 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 152 places, 159 transitions, 340 flow [2020-10-20 02:44:47,473 INFO L129 PetriNetUnfolder]: 13/159 cut-off events. [2020-10-20 02:44:47,474 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-20 02:44:47,484 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 432 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 02:44:47,492 INFO L117 LiptonReduction]: Number of co-enabled transitions 7732 [2020-10-20 02:44:50,765 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-20 02:44:50,914 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-20 02:44:52,135 WARN L193 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 130 [2020-10-20 02:44:52,478 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-20 02:44:52,954 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-20 02:44:53,360 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-20 02:44:53,397 INFO L132 LiptonReduction]: Checked pairs total: 12551 [2020-10-20 02:44:53,397 INFO L134 LiptonReduction]: Total number of compositions: 153 [2020-10-20 02:44:53,417 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 41 transitions, 104 flow [2020-10-20 02:44:53,443 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-10-20 02:44:53,445 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-10-20 02:44:53,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 02:44:53,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:53,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 02:44:53,453 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 02:44:53,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:53,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1741433428, now seen corresponding path program 1 times [2020-10-20 02:44:53,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:53,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211241067] [2020-10-20 02:44:53,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:53,698 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 02:44:53,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211241067] [2020-10-20 02:44:53,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:53,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:44:53,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475201290] [2020-10-20 02:44:53,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:44:53,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:53,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:44:53,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:53,724 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-10-20 02:44:53,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:53,801 INFO L93 Difference]: Finished difference Result 529 states and 1334 transitions. [2020-10-20 02:44:53,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:44:53,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-20 02:44:53,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:53,824 INFO L225 Difference]: With dead ends: 529 [2020-10-20 02:44:53,824 INFO L226 Difference]: Without dead ends: 507 [2020-10-20 02:44:53,826 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 02:44:53,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-10-20 02:44:53,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 467. [2020-10-20 02:44:53,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-10-20 02:44:53,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 1235 transitions. [2020-10-20 02:44:53,916 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 1235 transitions. Word has length 6 [2020-10-20 02:44:53,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:53,917 INFO L481 AbstractCegarLoop]: Abstraction has 467 states and 1235 transitions. [2020-10-20 02:44:53,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:44:53,917 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 1235 transitions. [2020-10-20 02:44:53,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 02:44:53,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:53,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:53,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 02:44:53,937 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 02:44:53,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:53,938 INFO L82 PathProgramCache]: Analyzing trace with hash -497887655, now seen corresponding path program 1 times [2020-10-20 02:44:53,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:53,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423374741] [2020-10-20 02:44:53,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:54,043 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 02:44:54,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423374741] [2020-10-20 02:44:54,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:54,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:44:54,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627134133] [2020-10-20 02:44:54,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:44:54,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:54,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:44:54,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:54,046 INFO L87 Difference]: Start difference. First operand 467 states and 1235 transitions. Second operand 3 states. [2020-10-20 02:44:54,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:54,065 INFO L93 Difference]: Finished difference Result 574 states and 1482 transitions. [2020-10-20 02:44:54,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:44:54,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 02:44:54,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:54,070 INFO L225 Difference]: With dead ends: 574 [2020-10-20 02:44:54,071 INFO L226 Difference]: Without dead ends: 552 [2020-10-20 02:44:54,071 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 02:44:54,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-10-20 02:44:54,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 512. [2020-10-20 02:44:54,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-10-20 02:44:54,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 1362 transitions. [2020-10-20 02:44:54,105 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 1362 transitions. Word has length 8 [2020-10-20 02:44:54,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:54,106 INFO L481 AbstractCegarLoop]: Abstraction has 512 states and 1362 transitions. [2020-10-20 02:44:54,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:44:54,106 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 1362 transitions. [2020-10-20 02:44:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 02:44:54,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:54,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:54,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 02:44:54,108 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 02:44:54,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:54,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1329492756, now seen corresponding path program 1 times [2020-10-20 02:44:54,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:54,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125444989] [2020-10-20 02:44:54,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:54,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:44:54,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125444989] [2020-10-20 02:44:54,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:54,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:44:54,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667133422] [2020-10-20 02:44:54,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:44:54,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:54,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:44:54,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:54,211 INFO L87 Difference]: Start difference. First operand 512 states and 1362 transitions. Second operand 3 states. [2020-10-20 02:44:54,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:54,227 INFO L93 Difference]: Finished difference Result 544 states and 1443 transitions. [2020-10-20 02:44:54,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:44:54,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-20 02:44:54,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:54,233 INFO L225 Difference]: With dead ends: 544 [2020-10-20 02:44:54,233 INFO L226 Difference]: Without dead ends: 544 [2020-10-20 02:44:54,234 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 02:44:54,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2020-10-20 02:44:54,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2020-10-20 02:44:54,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-10-20 02:44:54,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 1443 transitions. [2020-10-20 02:44:54,264 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 1443 transitions. Word has length 10 [2020-10-20 02:44:54,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:54,265 INFO L481 AbstractCegarLoop]: Abstraction has 544 states and 1443 transitions. [2020-10-20 02:44:54,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:44:54,265 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 1443 transitions. [2020-10-20 02:44:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 02:44:54,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:54,268 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:54,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 02:44:54,268 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 02:44:54,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:54,269 INFO L82 PathProgramCache]: Analyzing trace with hash 695772916, now seen corresponding path program 1 times [2020-10-20 02:44:54,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:54,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57233642] [2020-10-20 02:44:54,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:54,334 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 02:44:54,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57233642] [2020-10-20 02:44:54,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589291026] [2020-10-20 02:44:54,335 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 02:44:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:54,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 02:44:54,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 02:44:54,500 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 02:44:54,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 02:44:54,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-20 02:44:54,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982021842] [2020-10-20 02:44:54,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 02:44:54,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:54,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 02:44:54,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 02:44:54,502 INFO L87 Difference]: Start difference. First operand 544 states and 1443 transitions. Second operand 7 states. [2020-10-20 02:44:54,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:54,579 INFO L93 Difference]: Finished difference Result 821 states and 2103 transitions. [2020-10-20 02:44:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 02:44:54,580 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-20 02:44:54,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:54,587 INFO L225 Difference]: With dead ends: 821 [2020-10-20 02:44:54,587 INFO L226 Difference]: Without dead ends: 821 [2020-10-20 02:44:54,587 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 02:44:54,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2020-10-20 02:44:54,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 668. [2020-10-20 02:44:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2020-10-20 02:44:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1762 transitions. [2020-10-20 02:44:54,614 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1762 transitions. Word has length 14 [2020-10-20 02:44:54,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:54,614 INFO L481 AbstractCegarLoop]: Abstraction has 668 states and 1762 transitions. [2020-10-20 02:44:54,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 02:44:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1762 transitions. [2020-10-20 02:44:54,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 02:44:54,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:54,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:54,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 02:44:54,831 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 02:44:54,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:54,831 INFO L82 PathProgramCache]: Analyzing trace with hash -570661862, now seen corresponding path program 1 times [2020-10-20 02:44:54,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:54,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930352079] [2020-10-20 02:44:54,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:54,873 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 02:44:54,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930352079] [2020-10-20 02:44:54,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:54,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 02:44:54,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883522768] [2020-10-20 02:44:54,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:44:54,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:54,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:44:54,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:54,875 INFO L87 Difference]: Start difference. First operand 668 states and 1762 transitions. Second operand 3 states. [2020-10-20 02:44:54,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:54,908 INFO L93 Difference]: Finished difference Result 359 states and 809 transitions. [2020-10-20 02:44:54,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:44:54,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-20 02:44:54,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:54,912 INFO L225 Difference]: With dead ends: 359 [2020-10-20 02:44:54,912 INFO L226 Difference]: Without dead ends: 355 [2020-10-20 02:44:54,912 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 02:44:54,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-10-20 02:44:54,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 335. [2020-10-20 02:44:54,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-10-20 02:44:54,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 751 transitions. [2020-10-20 02:44:54,923 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 751 transitions. Word has length 16 [2020-10-20 02:44:54,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:54,923 INFO L481 AbstractCegarLoop]: Abstraction has 335 states and 751 transitions. [2020-10-20 02:44:54,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:44:54,924 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 751 transitions. [2020-10-20 02:44:54,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 02:44:54,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:54,928 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 02:44:54,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 02:44:54,929 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 02:44:54,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:54,929 INFO L82 PathProgramCache]: Analyzing trace with hash 911227048, now seen corresponding path program 1 times [2020-10-20 02:44:54,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:54,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373408766] [2020-10-20 02:44:54,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:55,085 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 02:44:55,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373408766] [2020-10-20 02:44:55,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:55,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 02:44:55,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362701468] [2020-10-20 02:44:55,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 02:44:55,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:55,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 02:44:55,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 02:44:55,087 INFO L87 Difference]: Start difference. First operand 335 states and 751 transitions. Second operand 5 states. [2020-10-20 02:44:55,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:55,164 INFO L93 Difference]: Finished difference Result 459 states and 1021 transitions. [2020-10-20 02:44:55,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 02:44:55,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 02:44:55,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:55,167 INFO L225 Difference]: With dead ends: 459 [2020-10-20 02:44:55,168 INFO L226 Difference]: Without dead ends: 459 [2020-10-20 02:44:55,168 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 02:44:55,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-10-20 02:44:55,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 373. [2020-10-20 02:44:55,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-10-20 02:44:55,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 842 transitions. [2020-10-20 02:44:55,183 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 842 transitions. Word has length 17 [2020-10-20 02:44:55,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:55,183 INFO L481 AbstractCegarLoop]: Abstraction has 373 states and 842 transitions. [2020-10-20 02:44:55,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 02:44:55,183 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 842 transitions. [2020-10-20 02:44:55,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-20 02:44:55,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:55,185 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 02:44:55,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 02:44:55,185 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 02:44:55,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:55,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1804502606, now seen corresponding path program 1 times [2020-10-20 02:44:55,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:55,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752000867] [2020-10-20 02:44:55,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:55,734 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 02:44:55,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752000867] [2020-10-20 02:44:55,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:55,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 02:44:55,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57720922] [2020-10-20 02:44:55,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 02:44:55,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:55,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 02:44:55,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-20 02:44:55,736 INFO L87 Difference]: Start difference. First operand 373 states and 842 transitions. Second operand 9 states. [2020-10-20 02:44:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:56,255 INFO L93 Difference]: Finished difference Result 692 states and 1542 transitions. [2020-10-20 02:44:56,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 02:44:56,256 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-20 02:44:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:56,261 INFO L225 Difference]: With dead ends: 692 [2020-10-20 02:44:56,262 INFO L226 Difference]: Without dead ends: 692 [2020-10-20 02:44:56,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-20 02:44:56,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2020-10-20 02:44:56,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 495. [2020-10-20 02:44:56,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-10-20 02:44:56,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 1143 transitions. [2020-10-20 02:44:56,279 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 1143 transitions. Word has length 21 [2020-10-20 02:44:56,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:56,279 INFO L481 AbstractCegarLoop]: Abstraction has 495 states and 1143 transitions. [2020-10-20 02:44:56,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 02:44:56,279 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 1143 transitions. [2020-10-20 02:44:56,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-20 02:44:56,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:56,280 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 02:44:56,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 02:44:56,281 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 02:44:56,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:56,281 INFO L82 PathProgramCache]: Analyzing trace with hash 2021627422, now seen corresponding path program 2 times [2020-10-20 02:44:56,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:56,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726039550] [2020-10-20 02:44:56,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:56,529 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 02:44:56,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726039550] [2020-10-20 02:44:56,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:56,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 02:44:56,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836371169] [2020-10-20 02:44:56,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 02:44:56,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:56,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 02:44:56,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 02:44:56,531 INFO L87 Difference]: Start difference. First operand 495 states and 1143 transitions. Second operand 9 states. [2020-10-20 02:44:56,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:56,863 INFO L93 Difference]: Finished difference Result 807 states and 1820 transitions. [2020-10-20 02:44:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 02:44:56,864 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-20 02:44:56,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:56,870 INFO L225 Difference]: With dead ends: 807 [2020-10-20 02:44:56,870 INFO L226 Difference]: Without dead ends: 807 [2020-10-20 02:44:56,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-20 02:44:56,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2020-10-20 02:44:56,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 481. [2020-10-20 02:44:56,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-20 02:44:56,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 1106 transitions. [2020-10-20 02:44:56,888 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 1106 transitions. Word has length 21 [2020-10-20 02:44:56,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:56,889 INFO L481 AbstractCegarLoop]: Abstraction has 481 states and 1106 transitions. [2020-10-20 02:44:56,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 02:44:56,889 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 1106 transitions. [2020-10-20 02:44:56,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 02:44:56,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:56,890 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-20 02:44:56,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 02:44:56,891 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 02:44:56,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:56,891 INFO L82 PathProgramCache]: Analyzing trace with hash -929320900, now seen corresponding path program 2 times [2020-10-20 02:44:56,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:56,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448972641] [2020-10-20 02:44:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:56,983 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 02:44:56,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448972641] [2020-10-20 02:44:56,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702292354] [2020-10-20 02:44:56,984 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 02:44:57,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 02:44:57,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 02:44:57,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 02:44:57,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 02:44:57,098 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 02:44:57,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 02:44:57,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-20 02:44:57,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848927915] [2020-10-20 02:44:57,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 02:44:57,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:57,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 02:44:57,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 02:44:57,100 INFO L87 Difference]: Start difference. First operand 481 states and 1106 transitions. Second operand 9 states. [2020-10-20 02:44:57,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:57,188 INFO L93 Difference]: Finished difference Result 722 states and 1617 transitions. [2020-10-20 02:44:57,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 02:44:57,189 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-20 02:44:57,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:57,194 INFO L225 Difference]: With dead ends: 722 [2020-10-20 02:44:57,194 INFO L226 Difference]: Without dead ends: 722 [2020-10-20 02:44:57,194 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 02:44:57,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2020-10-20 02:44:57,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 571. [2020-10-20 02:44:57,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-10-20 02:44:57,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1305 transitions. [2020-10-20 02:44:57,215 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1305 transitions. Word has length 22 [2020-10-20 02:44:57,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:57,216 INFO L481 AbstractCegarLoop]: Abstraction has 571 states and 1305 transitions. [2020-10-20 02:44:57,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 02:44:57,216 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1305 transitions. [2020-10-20 02:44:57,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 02:44:57,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:57,217 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 02:44:57,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 02:44:57,432 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 02:44:57,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:57,432 INFO L82 PathProgramCache]: Analyzing trace with hash -2124766916, now seen corresponding path program 1 times [2020-10-20 02:44:57,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:57,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654135510] [2020-10-20 02:44:57,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:57,507 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 02:44:57,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654135510] [2020-10-20 02:44:57,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080803465] [2020-10-20 02:44:57,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 02:44:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:57,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 02:44:57,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 02:44:57,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-20 02:44:57,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 02:44:57,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2020-10-20 02:44:57,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530622879] [2020-10-20 02:44:57,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 02:44:57,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:57,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 02:44:57,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-20 02:44:57,613 INFO L87 Difference]: Start difference. First operand 571 states and 1305 transitions. Second operand 6 states. [2020-10-20 02:44:57,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:57,706 INFO L93 Difference]: Finished difference Result 786 states and 1758 transitions. [2020-10-20 02:44:57,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 02:44:57,706 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-20 02:44:57,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:57,712 INFO L225 Difference]: With dead ends: 786 [2020-10-20 02:44:57,713 INFO L226 Difference]: Without dead ends: 786 [2020-10-20 02:44:57,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-20 02:44:57,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2020-10-20 02:44:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 597. [2020-10-20 02:44:57,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-20 02:44:57,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 1376 transitions. [2020-10-20 02:44:57,733 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 1376 transitions. Word has length 24 [2020-10-20 02:44:57,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:57,734 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 1376 transitions. [2020-10-20 02:44:57,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 02:44:57,734 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 1376 transitions. [2020-10-20 02:44:57,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 02:44:57,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:57,736 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 02:44:57,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-20 02:44:57,952 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:44:57,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:57,952 INFO L82 PathProgramCache]: Analyzing trace with hash -2124840144, now seen corresponding path program 1 times [2020-10-20 02:44:57,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:57,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301856224] [2020-10-20 02:44:57,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 02:44:58,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 02:44:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 02:44:58,036 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 02:44:58,232 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 02:44:58,233 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 02:44:58,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 02:44:58,234 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-20 02:44:58,235 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-20 02:44:58,244 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [623] [623] L15-->L950: Formula: (and (= |~#arr~0.base_In1831978563| |t1Thread1of1ForFork0_push_#in~stack.base_Out1831978563|) (not (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_In1831978563 0)) (= |t1Thread1of1ForFork0_push_#in~stack.offset_Out1831978563| |~#arr~0.offset_In1831978563|) (let ((.cse0 (mod t1Thread1of1ForFork0_~tmp~0_In1831978563 4294967296))) (let ((.cse1 (<= .cse0 2147483647))) (or (and (= .cse0 |t1Thread1of1ForFork0_push_#in~x_Out1831978563|) .cse1) (and (= |t1Thread1of1ForFork0_push_#in~x_Out1831978563| (+ .cse0 (- 4294967296))) (not .cse1)))))) InVars {~#arr~0.offset=|~#arr~0.offset_In1831978563|, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_In1831978563, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In1831978563, ~#arr~0.base=|~#arr~0.base_In1831978563|} OutVars{~#arr~0.offset=|~#arr~0.offset_In1831978563|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out1831978563|, t1Thread1of1ForFork0_push_#t~nondet36=|t1Thread1of1ForFork0_push_#t~nondet36_Out1831978563|, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out1831978563, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out1831978563|, t1Thread1of1ForFork0_push_#t~ret38=|t1Thread1of1ForFork0_push_#t~ret38_Out1831978563|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out1831978563, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_In1831978563, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out1831978563|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In1831978563, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out1831978563, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out1831978563|, ~#arr~0.base=|~#arr~0.base_In1831978563|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_push_#t~nondet36, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#in~stack.offset, t1Thread1of1ForFork0_push_#t~ret38] because there is no mapped edge [2020-10-20 02:44:58,255 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [643] [643] L1002-3-->L997-6: Formula: (and (= (store |#pthreadsMutex_In-597470243| |~#m~0.base_In-597470243| (store (select |#pthreadsMutex_In-597470243| |~#m~0.base_In-597470243|) |~#m~0.offset_In-597470243| 0)) |#pthreadsMutex_Out-597470243|) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In-597470243| |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out-597470243|) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In-597470243| |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out-597470243|) (= t2Thread1of1ForFork1_~i~1_Out-597470243 (+ t2Thread1of1ForFork1_~i~1_In-597470243 1)) (not (= |t2Thread1of1ForFork1_#t~ret50_In-597470243| (- 2))) (<= |t2Thread1of1ForFork1_#t~ret50_In-597470243| 2147483647) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret50_In-597470243| 2147483648))) InVars {#pthreadsMutex=|#pthreadsMutex_In-597470243|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In-597470243|, ~#m~0.base=|~#m~0.base_In-597470243|, ~#m~0.offset=|~#m~0.offset_In-597470243|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_In-597470243|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In-597470243, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In-597470243|} OutVars{#pthreadsMutex=|#pthreadsMutex_Out-597470243|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out-597470243|, ~#m~0.base=|~#m~0.base_In-597470243|, ~#m~0.offset=|~#m~0.offset_In-597470243|, t2Thread1of1ForFork1_#t~post48=|t2Thread1of1ForFork1_#t~post48_Out-597470243|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_Out-597470243|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out-597470243, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out-597470243|} 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 02:44:58,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 02:44:58 BasicIcfg [2020-10-20 02:44:58,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 02:44:58,307 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 02:44:58,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 02:44:58,308 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 02:44:58,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:44:47" (3/4) ... [2020-10-20 02:44:58,312 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 02:44:58,314 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [623] [623] L15-->L950: Formula: (and (= |~#arr~0.base_In1831978563| |t1Thread1of1ForFork0_push_#in~stack.base_Out1831978563|) (not (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_In1831978563 0)) (= |t1Thread1of1ForFork0_push_#in~stack.offset_Out1831978563| |~#arr~0.offset_In1831978563|) (let ((.cse0 (mod t1Thread1of1ForFork0_~tmp~0_In1831978563 4294967296))) (let ((.cse1 (<= .cse0 2147483647))) (or (and (= .cse0 |t1Thread1of1ForFork0_push_#in~x_Out1831978563|) .cse1) (and (= |t1Thread1of1ForFork0_push_#in~x_Out1831978563| (+ .cse0 (- 4294967296))) (not .cse1)))))) InVars {~#arr~0.offset=|~#arr~0.offset_In1831978563|, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_In1831978563, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In1831978563, ~#arr~0.base=|~#arr~0.base_In1831978563|} OutVars{~#arr~0.offset=|~#arr~0.offset_In1831978563|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out1831978563|, t1Thread1of1ForFork0_push_#t~nondet36=|t1Thread1of1ForFork0_push_#t~nondet36_Out1831978563|, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out1831978563, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out1831978563|, t1Thread1of1ForFork0_push_#t~ret38=|t1Thread1of1ForFork0_push_#t~ret38_Out1831978563|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out1831978563, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_In1831978563, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out1831978563|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In1831978563, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out1831978563, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out1831978563|, ~#arr~0.base=|~#arr~0.base_In1831978563|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_push_#t~nondet36, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#in~stack.offset, t1Thread1of1ForFork0_push_#t~ret38] because there is no mapped edge [2020-10-20 02:44:58,323 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [643] [643] L1002-3-->L997-6: Formula: (and (= (store |#pthreadsMutex_In-597470243| |~#m~0.base_In-597470243| (store (select |#pthreadsMutex_In-597470243| |~#m~0.base_In-597470243|) |~#m~0.offset_In-597470243| 0)) |#pthreadsMutex_Out-597470243|) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In-597470243| |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out-597470243|) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In-597470243| |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out-597470243|) (= t2Thread1of1ForFork1_~i~1_Out-597470243 (+ t2Thread1of1ForFork1_~i~1_In-597470243 1)) (not (= |t2Thread1of1ForFork1_#t~ret50_In-597470243| (- 2))) (<= |t2Thread1of1ForFork1_#t~ret50_In-597470243| 2147483647) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret50_In-597470243| 2147483648))) InVars {#pthreadsMutex=|#pthreadsMutex_In-597470243|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In-597470243|, ~#m~0.base=|~#m~0.base_In-597470243|, ~#m~0.offset=|~#m~0.offset_In-597470243|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_In-597470243|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In-597470243, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In-597470243|} OutVars{#pthreadsMutex=|#pthreadsMutex_Out-597470243|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out-597470243|, ~#m~0.base=|~#m~0.base_In-597470243|, ~#m~0.offset=|~#m~0.offset_In-597470243|, t2Thread1of1ForFork1_#t~post48=|t2Thread1of1ForFork1_#t~post48_Out-597470243|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_Out-597470243|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out-597470243, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out-597470243|} 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 02:44:58,393 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 02:44:58,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 02:44:58,395 INFO L168 Benchmark]: Toolchain (without parser) took 12787.60 ms. Allocated memory was 39.8 MB in the beginning and 99.1 MB in the end (delta: 59.2 MB). Free memory was 15.2 MB in the beginning and 51.8 MB in the end (delta: -36.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:58,395 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 30.9 MB. Free memory was 6.8 MB in the beginning and 6.7 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. [2020-10-20 02:44:58,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 821.50 ms. Allocated memory was 39.8 MB in the beginning and 44.0 MB in the end (delta: 4.2 MB). Free memory was 14.4 MB in the beginning and 26.4 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:58,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.05 ms. Allocated memory is still 44.0 MB. Free memory was 26.4 MB in the beginning and 23.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:58,397 INFO L168 Benchmark]: Boogie Preprocessor took 52.02 ms. Allocated memory is still 44.0 MB. Free memory was 23.6 MB in the beginning and 21.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:58,398 INFO L168 Benchmark]: RCFGBuilder took 610.63 ms. Allocated memory was 44.0 MB in the beginning and 47.7 MB in the end (delta: 3.7 MB). Free memory was 21.5 MB in the beginning and 25.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:58,402 INFO L168 Benchmark]: TraceAbstraction took 11142.32 ms. Allocated memory was 47.7 MB in the beginning and 99.1 MB in the end (delta: 51.4 MB). Free memory was 24.9 MB in the beginning and 62.8 MB in the end (delta: -38.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:58,403 INFO L168 Benchmark]: Witness Printer took 86.08 ms. Allocated memory is still 99.1 MB. Free memory was 62.8 MB in the beginning and 51.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:58,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 30.9 MB. Free memory was 6.8 MB in the beginning and 6.7 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 821.50 ms. Allocated memory was 39.8 MB in the beginning and 44.0 MB in the end (delta: 4.2 MB). Free memory was 14.4 MB in the beginning and 26.4 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 64.05 ms. Allocated memory is still 44.0 MB. Free memory was 26.4 MB in the beginning and 23.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 52.02 ms. Allocated memory is still 44.0 MB. Free memory was 23.6 MB in the beginning and 21.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 610.63 ms. Allocated memory was 44.0 MB in the beginning and 47.7 MB in the end (delta: 3.7 MB). Free memory was 21.5 MB in the beginning and 25.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 11142.32 ms. Allocated memory was 47.7 MB in the beginning and 99.1 MB in the end (delta: 51.4 MB). Free memory was 24.9 MB in the beginning and 62.8 MB in the end (delta: -38.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 14.3 GB. * Witness Printer took 86.08 ms. Allocated memory is still 99.1 MB. Free memory was 62.8 MB in the beginning and 51.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5603 VarBasedMoverChecksPositive, 123 VarBasedMoverChecksNegative, 54 SemBasedMoverChecksPositive, 69 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 334 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.0s, 152 PlacesBefore, 40 PlacesAfterwards, 159 TransitionsBefore, 41 TransitionsAfterwards, 7732 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 89 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 28 ConcurrentYvCompositions, 6 ChoiceCompositions, 153 TotalNumberOfCompositions, 12551 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[(400)]; [L929] 0 pthread_mutex_t m; [L930] 0 _Bool flag=(0); [L1011] 0 pthread_t id1, id2; [L1013] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={13:0}, flag=0, m={6:0}, top=0] [L1014] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={13:0}, flag=0, m={6:0}, top=0] [L980] 1 int i; [L981] 1 unsigned int tmp; [L982] 1 i=0 VAL [arr={13:0}, flag=0, m={6:0}, top=0] [L982] COND TRUE 1 i<(400) [L985] 1 tmp = __VERIFIER_nondet_uint() [L952] COND FALSE 1 !(top==(400)) [L996] 2 int i; [L997] 2 i=0 VAL [arr={13:0}, flag=0, m={6:0}, top=0] [L944] 1 return top; [L959] 1 stack[get_top()] = x [L936] 1 top++ [L962] 1 return 0; [L987] COND FALSE 1 !(push(arr,tmp)==(-1)) [L989] 1 flag=(1) VAL [arr={13:0}, flag=1, m={6:0}, top=1] [L982] 1 i++ VAL [arr={13:0}, flag=1, m={6:0}, top=1] [L997] COND TRUE 2 i<(400) [L1000] COND TRUE 2 \read(flag) [L944] 2 return top; [L966] COND FALSE 2 !(get_top()==0) [L940] 2 top-- VAL [arr={13:0}, flag=1, m={6:0}, top=0] [L944] 2 return top; [L974] EXPR 2 stack[get_top()] [L974] 2 return stack[get_top()]; [L997] COND TRUE 2 i<(400) [L1000] COND TRUE 2 \read(flag) [L944] 2 return top; [L966] COND TRUE 2 get_top()==0 [L969] 2 return (-2); [L1002] COND TRUE 2 !(pop(arr)!=(-2)) [L12] COND FALSE 2 !(0) [L12] 2 __assert_fail ("0", "stack_longer-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arr={13:0}, flag=1, m={6:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 146 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.8s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 452 SDtfs, 524 SDslu, 953 SDs, 0 SdLazy, 471 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=668occurred 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, 10 MinimizatonAttempts, 1202 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 41774 SizeOfPredicates, 8 NumberOfNonLiveVariables, 572 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 10/40 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...