./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/stack-2.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-2.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 3a95a77ee1b5940cdddf04602db14f12c7ccb852 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:44:44,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 02:44:44,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 02:44:44,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 02:44:44,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 02:44:44,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 02:44:44,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 02:44:44,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 02:44:44,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 02:44:44,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 02:44:44,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 02:44:44,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 02:44:44,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 02:44:44,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 02:44:44,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 02:44:44,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 02:44:44,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 02:44:44,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 02:44:44,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 02:44:44,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 02:44:44,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 02:44:44,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 02:44:44,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 02:44:44,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 02:44:44,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 02:44:44,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 02:44:44,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 02:44:44,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 02:44:44,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 02:44:44,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 02:44:44,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 02:44:44,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 02:44:44,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 02:44:44,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 02:44:44,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 02:44:44,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 02:44:44,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 02:44:44,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 02:44:44,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 02:44:44,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 02:44:44,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 02:44:44,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 02:44:44,371 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 02:44:44,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 02:44:44,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 02:44:44,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 02:44:44,374 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 02:44:44,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 02:44:44,375 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 02:44:44,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 02:44:44,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 02:44:44,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 02:44:44,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 02:44:44,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 02:44:44,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 02:44:44,377 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 02:44:44,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 02:44:44,378 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 02:44:44,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 02:44:44,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 02:44:44,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 02:44:44,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 02:44:44,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 02:44:44,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 02:44:44,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 02:44:44,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 02:44:44,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 02:44:44,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 02:44:44,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 02:44:44,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 02:44:44,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 02:44:44,381 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 -> 3a95a77ee1b5940cdddf04602db14f12c7ccb852 [2020-10-20 02:44:44,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 02:44:44,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 02:44:44,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 02:44:44,625 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 02:44:44,626 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 02:44:44,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/stack-2.i [2020-10-20 02:44:44,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908af424f/e7e060e02bb04d2c90a6bb0bf72ba3d5/FLAG07d675821 [2020-10-20 02:44:45,274 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 02:44:45,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stack-2.i [2020-10-20 02:44:45,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908af424f/e7e060e02bb04d2c90a6bb0bf72ba3d5/FLAG07d675821 [2020-10-20 02:44:45,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908af424f/e7e060e02bb04d2c90a6bb0bf72ba3d5 [2020-10-20 02:44:45,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 02:44:45,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 02:44:45,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 02:44:45,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 02:44:45,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 02:44:45,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:44:45" (1/1) ... [2020-10-20 02:44:45,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f473daf 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 02:44:45,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:44:45" (1/1) ... [2020-10-20 02:44:45,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 02:44:45,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 02:44:46,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:44:46,469 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 02:44:46,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:44:46,753 INFO L208 MainTranslator]: Completed translation [2020-10-20 02:44:46,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:44:46 WrapperNode [2020-10-20 02:44:46,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 02:44:46,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 02:44:46,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 02:44:46,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 02:44:46,767 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 02:44:46,811 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 02:44:46,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 02:44:46,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 02:44:46,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 02:44:46,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 02:44:46,854 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 02:44:46,855 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 02:44:46,859 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 02:44:46,859 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 02:44:46,868 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 02:44:46,873 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 02:44:46,876 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 02:44:46,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 02:44:46,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 02:44:46,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 02:44:46,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 02:44:46,883 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 02:44:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-20 02:44:46,962 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-20 02:44:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-20 02:44:46,963 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-20 02:44:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 02:44:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 02:44:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 02:44:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 02:44:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-20 02:44:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 02:44:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 02:44:46,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 02:44:46,969 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 02:44:47,528 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 02:44:47,528 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-20 02:44:47,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:44:47 BoogieIcfgContainer [2020-10-20 02:44:47,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 02:44:47,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 02:44:47,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 02:44:47,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 02:44:47,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 02:44:45" (1/3) ... [2020-10-20 02:44:47,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffe5224 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 02:44:47,537 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 02:44:47,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffe5224 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 02:44:47,537 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 02:44:47,539 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-2.i [2020-10-20 02:44:47,552 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 02:44:47,552 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 02:44:47,561 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-20 02:44:47,562 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 02:44:47,601 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,601 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,601 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,601 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,602 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,602 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,602 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,602 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,602 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,603 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,603 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,603 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,603 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,604 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,604 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,604 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,605 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,605 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,605 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,605 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,606 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,606 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,606 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,606 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,607 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,607 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,607 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,608 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,608 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,631 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,631 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,632 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,632 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,632 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,632 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,633 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,633 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,633 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,634 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,634 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,634 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,635 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,635 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,635 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,636 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,636 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,636 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,636 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,637 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,637 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,637 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,638 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,638 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,638 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,639 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,639 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,639 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,640 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,640 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,640 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,640 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,641 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,641 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,642 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,642 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,642 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,643 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,643 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,643 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,643 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,644 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,644 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,645 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,646 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,646 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,646 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,647 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,647 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,647 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,648 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,648 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,648 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,648 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,649 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,649 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,649 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,650 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,650 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,650 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,651 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,651 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,651 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,651 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,652 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,652 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,652 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,653 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,653 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,653 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,653 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,654 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,654 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,654 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,654 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,655 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,655 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,655 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,656 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,656 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,656 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,656 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,657 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,657 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,657 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,658 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,658 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,658 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,658 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,659 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,659 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,659 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,659 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,660 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,660 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,660 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,662 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,662 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,662 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,663 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,663 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,663 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,664 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,664 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,664 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,664 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,665 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,665 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,669 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,669 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,669 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,670 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,670 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,670 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,670 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,671 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,671 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,671 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,671 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,672 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,672 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,672 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,672 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,673 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,673 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,673 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,673 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,674 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,674 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,681 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,681 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,681 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,682 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,682 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,682 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,682 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,682 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,682 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,683 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,683 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,684 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,684 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,684 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,684 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,684 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,685 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,685 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,686 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,686 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,687 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:44:47,694 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-20 02:44:47,708 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-20 02:44:47,730 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 02:44:47,730 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 02:44:47,731 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 02:44:47,731 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 02:44:47,731 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 02:44:47,731 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 02:44:47,732 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 02:44:47,732 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 02:44:47,748 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 02:44:47,751 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 163 transitions, 348 flow [2020-10-20 02:44:47,754 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 163 transitions, 348 flow [2020-10-20 02:44:47,756 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 156 places, 163 transitions, 348 flow [2020-10-20 02:44:47,865 INFO L129 PetriNetUnfolder]: 13/163 cut-off events. [2020-10-20 02:44:47,865 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-20 02:44:47,876 INFO L80 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 163 events. 13/163 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 445 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 123. Up to 3 conditions per place. [2020-10-20 02:44:47,886 INFO L117 LiptonReduction]: Number of co-enabled transitions 7732 [2020-10-20 02:44:51,184 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-20 02:44:51,312 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-20 02:44:51,477 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-20 02:44:52,688 WARN L193 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 146 [2020-10-20 02:44:53,175 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-20 02:44:53,192 INFO L132 LiptonReduction]: Checked pairs total: 13181 [2020-10-20 02:44:53,192 INFO L134 LiptonReduction]: Total number of compositions: 160 [2020-10-20 02:44:53,199 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 41 transitions, 104 flow [2020-10-20 02:44:53,225 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-10-20 02:44:53,228 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-10-20 02:44:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 02:44:53,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:53,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 02:44:53,236 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 02:44:53,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:53,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1303048091, now seen corresponding path program 1 times [2020-10-20 02:44:53,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:53,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069657503] [2020-10-20 02:44:53,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:53,512 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 02:44:53,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069657503] [2020-10-20 02:44:53,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:53,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:44:53,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544747592] [2020-10-20 02:44:53,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:44:53,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:53,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:44:53,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:53,532 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-10-20 02:44:53,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:53,639 INFO L93 Difference]: Finished difference Result 529 states and 1334 transitions. [2020-10-20 02:44:53,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:44:53,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-20 02:44:53,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:53,676 INFO L225 Difference]: With dead ends: 529 [2020-10-20 02:44:53,676 INFO L226 Difference]: Without dead ends: 507 [2020-10-20 02:44:53,678 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 02:44:53,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-10-20 02:44:53,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 467. [2020-10-20 02:44:53,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-10-20 02:44:53,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 1235 transitions. [2020-10-20 02:44:53,823 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 1235 transitions. Word has length 6 [2020-10-20 02:44:53,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:53,824 INFO L481 AbstractCegarLoop]: Abstraction has 467 states and 1235 transitions. [2020-10-20 02:44:53,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:44:53,825 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 1235 transitions. [2020-10-20 02:44:53,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 02:44:53,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:53,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:53,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 02:44:53,827 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 02:44:53,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:53,827 INFO L82 PathProgramCache]: Analyzing trace with hash 509065654, now seen corresponding path program 1 times [2020-10-20 02:44:53,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:53,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602920660] [2020-10-20 02:44:53,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:53,901 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 02:44:53,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602920660] [2020-10-20 02:44:53,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:53,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:44:53,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305008749] [2020-10-20 02:44:53,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:44:53,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:53,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:44:53,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:53,905 INFO L87 Difference]: Start difference. First operand 467 states and 1235 transitions. Second operand 3 states. [2020-10-20 02:44:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:53,927 INFO L93 Difference]: Finished difference Result 574 states and 1482 transitions. [2020-10-20 02:44:53,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:44:53,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 02:44:53,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:53,933 INFO L225 Difference]: With dead ends: 574 [2020-10-20 02:44:53,933 INFO L226 Difference]: Without dead ends: 552 [2020-10-20 02:44:53,935 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 02:44:53,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-10-20 02:44:53,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 512. [2020-10-20 02:44:53,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-10-20 02:44:54,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 1362 transitions. [2020-10-20 02:44:54,120 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 1362 transitions. Word has length 8 [2020-10-20 02:44:54,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:54,121 INFO L481 AbstractCegarLoop]: Abstraction has 512 states and 1362 transitions. [2020-10-20 02:44:54,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:44:54,121 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 1362 transitions. [2020-10-20 02:44:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 02:44:54,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:54,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:54,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 02:44:54,127 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 02:44:54,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:54,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1684854353, now seen corresponding path program 1 times [2020-10-20 02:44:54,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:54,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524494591] [2020-10-20 02:44:54,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:54,181 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 02:44:54,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524494591] [2020-10-20 02:44:54,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:54,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:44:54,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69232641] [2020-10-20 02:44:54,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:44:54,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:54,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:44:54,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:54,183 INFO L87 Difference]: Start difference. First operand 512 states and 1362 transitions. Second operand 3 states. [2020-10-20 02:44:54,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:54,199 INFO L93 Difference]: Finished difference Result 544 states and 1443 transitions. [2020-10-20 02:44:54,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:44:54,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-20 02:44:54,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:54,204 INFO L225 Difference]: With dead ends: 544 [2020-10-20 02:44:54,204 INFO L226 Difference]: Without dead ends: 544 [2020-10-20 02:44:54,204 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 02:44:54,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2020-10-20 02:44:54,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2020-10-20 02:44:54,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-10-20 02:44:54,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 1443 transitions. [2020-10-20 02:44:54,225 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 1443 transitions. Word has length 10 [2020-10-20 02:44:54,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:54,226 INFO L481 AbstractCegarLoop]: Abstraction has 544 states and 1443 transitions. [2020-10-20 02:44:54,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:44:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 1443 transitions. [2020-10-20 02:44:54,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 02:44:54,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:54,228 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:54,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 02:44:54,228 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 02:44:54,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:54,229 INFO L82 PathProgramCache]: Analyzing trace with hash 432088352, now seen corresponding path program 1 times [2020-10-20 02:44:54,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:54,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708998765] [2020-10-20 02:44:54,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:54,255 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 02:44:54,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708998765] [2020-10-20 02:44:54,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015356824] [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 02:44:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:54,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 02:44:54,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 02:44:54,468 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 02:44:54,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 02:44:54,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-20 02:44:54,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613312562] [2020-10-20 02:44:54,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 02:44:54,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:54,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 02:44:54,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 02:44:54,471 INFO L87 Difference]: Start difference. First operand 544 states and 1443 transitions. Second operand 7 states. [2020-10-20 02:44:54,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:54,561 INFO L93 Difference]: Finished difference Result 821 states and 2103 transitions. [2020-10-20 02:44:54,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 02:44:54,561 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-20 02:44:54,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:54,583 INFO L225 Difference]: With dead ends: 821 [2020-10-20 02:44:54,584 INFO L226 Difference]: Without dead ends: 821 [2020-10-20 02:44:54,584 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 02:44:54,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2020-10-20 02:44:54,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 668. [2020-10-20 02:44:54,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2020-10-20 02:44:54,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1762 transitions. [2020-10-20 02:44:54,612 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1762 transitions. Word has length 14 [2020-10-20 02:44:54,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:54,612 INFO L481 AbstractCegarLoop]: Abstraction has 668 states and 1762 transitions. [2020-10-20 02:44:54,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 02:44:54,613 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1762 transitions. [2020-10-20 02:44:54,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 02:44:54,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:54,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:44:54,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 02:44:54,833 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 02:44:54,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:54,833 INFO L82 PathProgramCache]: Analyzing trace with hash -565075444, now seen corresponding path program 1 times [2020-10-20 02:44:54,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:54,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734884487] [2020-10-20 02:44:54,833 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 02:44:54,877 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 02:44:54,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734884487] [2020-10-20 02:44:54,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:54,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 02:44:54,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202904113] [2020-10-20 02:44:54,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:44:54,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:54,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:44:54,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:44:54,879 INFO L87 Difference]: Start difference. First operand 668 states and 1762 transitions. Second operand 3 states. [2020-10-20 02:44:54,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:54,902 INFO L93 Difference]: Finished difference Result 359 states and 809 transitions. [2020-10-20 02:44:54,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:44:54,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-20 02:44:54,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:54,905 INFO L225 Difference]: With dead ends: 359 [2020-10-20 02:44:54,906 INFO L226 Difference]: Without dead ends: 355 [2020-10-20 02:44:54,906 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 02:44:54,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-10-20 02:44:54,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 335. [2020-10-20 02:44:54,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-10-20 02:44:54,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 751 transitions. [2020-10-20 02:44:54,916 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 751 transitions. Word has length 16 [2020-10-20 02:44:54,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:54,917 INFO L481 AbstractCegarLoop]: Abstraction has 335 states and 751 transitions. [2020-10-20 02:44:54,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:44:54,917 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 751 transitions. [2020-10-20 02:44:54,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 02:44:54,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:54,918 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 02:44:54,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 02:44:54,919 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 02:44:54,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:54,919 INFO L82 PathProgramCache]: Analyzing trace with hash -812712107, now seen corresponding path program 1 times [2020-10-20 02:44:54,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:54,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638547953] [2020-10-20 02:44:54,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:54,984 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 02:44:54,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638547953] [2020-10-20 02:44:54,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:54,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 02:44:54,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591252014] [2020-10-20 02:44:54,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 02:44:54,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:54,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 02:44:54,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 02:44:54,987 INFO L87 Difference]: Start difference. First operand 335 states and 751 transitions. Second operand 5 states. [2020-10-20 02:44:55,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:55,049 INFO L93 Difference]: Finished difference Result 459 states and 1021 transitions. [2020-10-20 02:44:55,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 02:44:55,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 02:44:55,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:55,053 INFO L225 Difference]: With dead ends: 459 [2020-10-20 02:44:55,053 INFO L226 Difference]: Without dead ends: 459 [2020-10-20 02:44:55,054 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 02:44:55,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-10-20 02:44:55,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 373. [2020-10-20 02:44:55,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-10-20 02:44:55,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 842 transitions. [2020-10-20 02:44:55,067 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 842 transitions. Word has length 17 [2020-10-20 02:44:55,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:55,067 INFO L481 AbstractCegarLoop]: Abstraction has 373 states and 842 transitions. [2020-10-20 02:44:55,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 02:44:55,068 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 842 transitions. [2020-10-20 02:44:55,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-20 02:44:55,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:55,069 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 02:44:55,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 02:44:55,070 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 02:44:55,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:55,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1623081378, now seen corresponding path program 1 times [2020-10-20 02:44:55,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:55,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710440326] [2020-10-20 02:44:55,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:55,456 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 02:44:55,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710440326] [2020-10-20 02:44:55,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:44:55,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-20 02:44:55,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015640078] [2020-10-20 02:44:55,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-20 02:44:55,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:55,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-20 02:44:55,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-20 02:44:55,461 INFO L87 Difference]: Start difference. First operand 373 states and 842 transitions. Second operand 13 states. [2020-10-20 02:44:56,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:56,576 INFO L93 Difference]: Finished difference Result 768 states and 1680 transitions. [2020-10-20 02:44:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-20 02:44:56,577 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2020-10-20 02:44:56,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:56,581 INFO L225 Difference]: With dead ends: 768 [2020-10-20 02:44:56,581 INFO L226 Difference]: Without dead ends: 768 [2020-10-20 02:44:56,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2020-10-20 02:44:56,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2020-10-20 02:44:56,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 458. [2020-10-20 02:44:56,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-20 02:44:56,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 1039 transitions. [2020-10-20 02:44:56,607 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 1039 transitions. Word has length 21 [2020-10-20 02:44:56,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:56,608 INFO L481 AbstractCegarLoop]: Abstraction has 458 states and 1039 transitions. [2020-10-20 02:44:56,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-20 02:44:56,608 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 1039 transitions. [2020-10-20 02:44:56,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 02:44:56,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:56,610 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-20 02:44:56,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 02:44:56,610 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 02:44:56,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:56,611 INFO L82 PathProgramCache]: Analyzing trace with hash -69841189, now seen corresponding path program 2 times [2020-10-20 02:44:56,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:56,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587792747] [2020-10-20 02:44:56,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:44:56,675 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 02:44:56,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587792747] [2020-10-20 02:44:56,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690010579] [2020-10-20 02:44:56,676 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 02:44:56,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 02:44:56,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 02:44:56,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 02:44:56,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 02:44:56,797 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 02:44:56,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 02:44:56,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-20 02:44:56,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807579554] [2020-10-20 02:44:56,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 02:44:56,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:44:56,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 02:44:56,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 02:44:56,800 INFO L87 Difference]: Start difference. First operand 458 states and 1039 transitions. Second operand 9 states. [2020-10-20 02:44:56,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:44:56,887 INFO L93 Difference]: Finished difference Result 790 states and 1749 transitions. [2020-10-20 02:44:56,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 02:44:56,888 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-20 02:44:56,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:44:56,892 INFO L225 Difference]: With dead ends: 790 [2020-10-20 02:44:56,893 INFO L226 Difference]: Without dead ends: 790 [2020-10-20 02:44:56,893 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 02:44:56,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-10-20 02:44:56,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 570. [2020-10-20 02:44:56,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-10-20 02:44:56,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1305 transitions. [2020-10-20 02:44:56,911 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1305 transitions. Word has length 22 [2020-10-20 02:44:56,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:44:56,911 INFO L481 AbstractCegarLoop]: Abstraction has 570 states and 1305 transitions. [2020-10-20 02:44:56,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 02:44:56,912 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1305 transitions. [2020-10-20 02:44:56,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 02:44:56,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:44:56,913 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 02:44:57,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 02:44:57,128 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 02:44:57,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:44:57,129 INFO L82 PathProgramCache]: Analyzing trace with hash 477153717, now seen corresponding path program 1 times [2020-10-20 02:44:57,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:44:57,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314043127] [2020-10-20 02:44:57,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:44:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 02:44:57,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 02:44:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 02:44:57,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 02:44:57,268 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 02:44:57,268 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 02:44:57,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 02:44:57,270 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-20 02:44:57,270 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-20 02:44:57,277 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [645] [645] L987-->L952: Formula: (let ((.cse0 (mod t1Thread1of1ForFork1_~tmp~0_Out824620619 4294967296))) (and (= |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond_Out824620619| 1) (= |t1Thread1of1ForFork1_push_#in~stack.offset_Out824620619| |~#arr~0.offset_In824620619|) (= t1Thread1of1ForFork1_~tmp~0_Out824620619 |t1Thread1of1ForFork1_#t~nondet46_In824620619|) (= |t1Thread1of1ForFork1_push_#in~x_Out824620619| .cse0) (< .cse0 5) (= |~#arr~0.base_In824620619| |t1Thread1of1ForFork1_push_#in~stack.base_Out824620619|) (= |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond_Out824620619| t1Thread1of1ForFork1_assume_abort_if_not_~cond_Out824620619))) InVars {~#arr~0.offset=|~#arr~0.offset_In824620619|, t1Thread1of1ForFork1_#t~nondet46=|t1Thread1of1ForFork1_#t~nondet46_In824620619|, ~#arr~0.base=|~#arr~0.base_In824620619|} OutVars{t1Thread1of1ForFork1_push_#in~x=|t1Thread1of1ForFork1_push_#in~x_Out824620619|, ~#arr~0.offset=|~#arr~0.offset_In824620619|, t1Thread1of1ForFork1_push_#t~nondet36=|t1Thread1of1ForFork1_push_#t~nondet36_Out824620619|, t1Thread1of1ForFork1_push_~stack.offset=t1Thread1of1ForFork1_push_~stack.offset_Out824620619, t1Thread1of1ForFork1_push_#res=|t1Thread1of1ForFork1_push_#res_Out824620619|, t1Thread1of1ForFork1_push_~stack.base=t1Thread1of1ForFork1_push_~stack.base_Out824620619, t1Thread1of1ForFork1_push_#t~ret38=|t1Thread1of1ForFork1_push_#t~ret38_Out824620619|, t1Thread1of1ForFork1_assume_abort_if_not_~cond=t1Thread1of1ForFork1_assume_abort_if_not_~cond_Out824620619, t1Thread1of1ForFork1_~tmp~0=t1Thread1of1ForFork1_~tmp~0_Out824620619, t1Thread1of1ForFork1_push_#in~stack.base=|t1Thread1of1ForFork1_push_#in~stack.base_Out824620619|, t1Thread1of1ForFork1_push_~x=t1Thread1of1ForFork1_push_~x_Out824620619, t1Thread1of1ForFork1_#t~nondet46=|t1Thread1of1ForFork1_#t~nondet46_Out824620619|, t1Thread1of1ForFork1_push_#in~stack.offset=|t1Thread1of1ForFork1_push_#in~stack.offset_Out824620619|, t1Thread1of1ForFork1_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork1_assume_abort_if_not_#in~cond_Out824620619|, ~#arr~0.base=|~#arr~0.base_In824620619|} AuxVars[] AssignedVars[t1Thread1of1ForFork1_push_#in~x, t1Thread1of1ForFork1_push_#t~nondet36, t1Thread1of1ForFork1_push_~stack.offset, t1Thread1of1ForFork1_push_#res, t1Thread1of1ForFork1_push_~stack.base, t1Thread1of1ForFork1_push_#t~ret38, t1Thread1of1ForFork1_assume_abort_if_not_~cond, t1Thread1of1ForFork1_~tmp~0, t1Thread1of1ForFork1_push_#in~stack.base, t1Thread1of1ForFork1_push_~x, t1Thread1of1ForFork1_#t~nondet46, t1Thread1of1ForFork1_push_#in~stack.offset, t1Thread1of1ForFork1_assume_abort_if_not_#in~cond] because there is no mapped edge [2020-10-20 02:44:57,289 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [655] [655] L1004-4-->L999-6: Formula: (and (not (= (- 2) |t2Thread1of1ForFork0_#t~ret50_In1318820386|)) (= (+ t2Thread1of1ForFork0_~i~1_In1318820386 1) t2Thread1of1ForFork0_~i~1_Out1318820386) (= |#pthreadsMutex_Out1318820386| (store |#pthreadsMutex_In1318820386| |~#m~0.base_In1318820386| (store (select |#pthreadsMutex_In1318820386| |~#m~0.base_In1318820386|) |~#m~0.offset_In1318820386| 0))) (= |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_In1318820386| |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_Out1318820386|) (= |t2Thread1of1ForFork0_reach_error_#t~nondet2.base_In1318820386| |t2Thread1of1ForFork0_reach_error_#t~nondet2.base_Out1318820386|)) InVars {#pthreadsMutex=|#pthreadsMutex_In1318820386|, t2Thread1of1ForFork0_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_In1318820386|, ~#m~0.base=|~#m~0.base_In1318820386|, t2Thread1of1ForFork0_reach_error_#t~nondet2.base=|t2Thread1of1ForFork0_reach_error_#t~nondet2.base_In1318820386|, t2Thread1of1ForFork0_#t~ret50=|t2Thread1of1ForFork0_#t~ret50_In1318820386|, ~#m~0.offset=|~#m~0.offset_In1318820386|, t2Thread1of1ForFork0_~i~1=t2Thread1of1ForFork0_~i~1_In1318820386} OutVars{#pthreadsMutex=|#pthreadsMutex_Out1318820386|, t2Thread1of1ForFork0_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_Out1318820386|, ~#m~0.base=|~#m~0.base_In1318820386|, t2Thread1of1ForFork0_reach_error_#t~nondet2.base=|t2Thread1of1ForFork0_reach_error_#t~nondet2.base_Out1318820386|, t2Thread1of1ForFork0_#t~ret50=|t2Thread1of1ForFork0_#t~ret50_Out1318820386|, ~#m~0.offset=|~#m~0.offset_In1318820386|, t2Thread1of1ForFork0_#t~post48=|t2Thread1of1ForFork0_#t~post48_Out1318820386|, t2Thread1of1ForFork0_~i~1=t2Thread1of1ForFork0_~i~1_Out1318820386} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_reach_error_#t~nondet2.offset, t2Thread1of1ForFork0_reach_error_#t~nondet2.base, t2Thread1of1ForFork0_#t~ret50, t2Thread1of1ForFork0_#t~post48, t2Thread1of1ForFork0_~i~1] because there is no mapped edge [2020-10-20 02:44:57,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 02:44:57 BasicIcfg [2020-10-20 02:44:57,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 02:44:57,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 02:44:57,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 02:44:57,339 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 02:44:57,340 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 02:44:57,342 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 02:44:57,347 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [645] [645] L987-->L952: Formula: (let ((.cse0 (mod t1Thread1of1ForFork1_~tmp~0_Out824620619 4294967296))) (and (= |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond_Out824620619| 1) (= |t1Thread1of1ForFork1_push_#in~stack.offset_Out824620619| |~#arr~0.offset_In824620619|) (= t1Thread1of1ForFork1_~tmp~0_Out824620619 |t1Thread1of1ForFork1_#t~nondet46_In824620619|) (= |t1Thread1of1ForFork1_push_#in~x_Out824620619| .cse0) (< .cse0 5) (= |~#arr~0.base_In824620619| |t1Thread1of1ForFork1_push_#in~stack.base_Out824620619|) (= |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond_Out824620619| t1Thread1of1ForFork1_assume_abort_if_not_~cond_Out824620619))) InVars {~#arr~0.offset=|~#arr~0.offset_In824620619|, t1Thread1of1ForFork1_#t~nondet46=|t1Thread1of1ForFork1_#t~nondet46_In824620619|, ~#arr~0.base=|~#arr~0.base_In824620619|} OutVars{t1Thread1of1ForFork1_push_#in~x=|t1Thread1of1ForFork1_push_#in~x_Out824620619|, ~#arr~0.offset=|~#arr~0.offset_In824620619|, t1Thread1of1ForFork1_push_#t~nondet36=|t1Thread1of1ForFork1_push_#t~nondet36_Out824620619|, t1Thread1of1ForFork1_push_~stack.offset=t1Thread1of1ForFork1_push_~stack.offset_Out824620619, t1Thread1of1ForFork1_push_#res=|t1Thread1of1ForFork1_push_#res_Out824620619|, t1Thread1of1ForFork1_push_~stack.base=t1Thread1of1ForFork1_push_~stack.base_Out824620619, t1Thread1of1ForFork1_push_#t~ret38=|t1Thread1of1ForFork1_push_#t~ret38_Out824620619|, t1Thread1of1ForFork1_assume_abort_if_not_~cond=t1Thread1of1ForFork1_assume_abort_if_not_~cond_Out824620619, t1Thread1of1ForFork1_~tmp~0=t1Thread1of1ForFork1_~tmp~0_Out824620619, t1Thread1of1ForFork1_push_#in~stack.base=|t1Thread1of1ForFork1_push_#in~stack.base_Out824620619|, t1Thread1of1ForFork1_push_~x=t1Thread1of1ForFork1_push_~x_Out824620619, t1Thread1of1ForFork1_#t~nondet46=|t1Thread1of1ForFork1_#t~nondet46_Out824620619|, t1Thread1of1ForFork1_push_#in~stack.offset=|t1Thread1of1ForFork1_push_#in~stack.offset_Out824620619|, t1Thread1of1ForFork1_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork1_assume_abort_if_not_#in~cond_Out824620619|, ~#arr~0.base=|~#arr~0.base_In824620619|} AuxVars[] AssignedVars[t1Thread1of1ForFork1_push_#in~x, t1Thread1of1ForFork1_push_#t~nondet36, t1Thread1of1ForFork1_push_~stack.offset, t1Thread1of1ForFork1_push_#res, t1Thread1of1ForFork1_push_~stack.base, t1Thread1of1ForFork1_push_#t~ret38, t1Thread1of1ForFork1_assume_abort_if_not_~cond, t1Thread1of1ForFork1_~tmp~0, t1Thread1of1ForFork1_push_#in~stack.base, t1Thread1of1ForFork1_push_~x, t1Thread1of1ForFork1_#t~nondet46, t1Thread1of1ForFork1_push_#in~stack.offset, t1Thread1of1ForFork1_assume_abort_if_not_#in~cond] because there is no mapped edge [2020-10-20 02:44:57,359 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [655] [655] L1004-4-->L999-6: Formula: (and (not (= (- 2) |t2Thread1of1ForFork0_#t~ret50_In1318820386|)) (= (+ t2Thread1of1ForFork0_~i~1_In1318820386 1) t2Thread1of1ForFork0_~i~1_Out1318820386) (= |#pthreadsMutex_Out1318820386| (store |#pthreadsMutex_In1318820386| |~#m~0.base_In1318820386| (store (select |#pthreadsMutex_In1318820386| |~#m~0.base_In1318820386|) |~#m~0.offset_In1318820386| 0))) (= |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_In1318820386| |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_Out1318820386|) (= |t2Thread1of1ForFork0_reach_error_#t~nondet2.base_In1318820386| |t2Thread1of1ForFork0_reach_error_#t~nondet2.base_Out1318820386|)) InVars {#pthreadsMutex=|#pthreadsMutex_In1318820386|, t2Thread1of1ForFork0_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_In1318820386|, ~#m~0.base=|~#m~0.base_In1318820386|, t2Thread1of1ForFork0_reach_error_#t~nondet2.base=|t2Thread1of1ForFork0_reach_error_#t~nondet2.base_In1318820386|, t2Thread1of1ForFork0_#t~ret50=|t2Thread1of1ForFork0_#t~ret50_In1318820386|, ~#m~0.offset=|~#m~0.offset_In1318820386|, t2Thread1of1ForFork0_~i~1=t2Thread1of1ForFork0_~i~1_In1318820386} OutVars{#pthreadsMutex=|#pthreadsMutex_Out1318820386|, t2Thread1of1ForFork0_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_Out1318820386|, ~#m~0.base=|~#m~0.base_In1318820386|, t2Thread1of1ForFork0_reach_error_#t~nondet2.base=|t2Thread1of1ForFork0_reach_error_#t~nondet2.base_Out1318820386|, t2Thread1of1ForFork0_#t~ret50=|t2Thread1of1ForFork0_#t~ret50_Out1318820386|, ~#m~0.offset=|~#m~0.offset_In1318820386|, t2Thread1of1ForFork0_#t~post48=|t2Thread1of1ForFork0_#t~post48_Out1318820386|, t2Thread1of1ForFork0_~i~1=t2Thread1of1ForFork0_~i~1_Out1318820386} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_reach_error_#t~nondet2.offset, t2Thread1of1ForFork0_reach_error_#t~nondet2.base, t2Thread1of1ForFork0_#t~ret50, t2Thread1of1ForFork0_#t~post48, t2Thread1of1ForFork0_~i~1] because there is no mapped edge [2020-10-20 02:44:57,451 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 02:44:57,454 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 02:44:57,456 INFO L168 Benchmark]: Toolchain (without parser) took 11896.08 ms. Allocated memory was 34.6 MB in the beginning and 107.5 MB in the end (delta: 72.9 MB). Free memory was 9.2 MB in the beginning and 46.2 MB in the end (delta: -37.0 MB). Peak memory consumption was 35.9 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:57,460 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 33.0 MB. Free memory was 17.6 MB in the beginning and 17.5 MB in the end (delta: 39.7 kB). Peak memory consumption was 39.7 kB. Max. memory is 14.3 GB. [2020-10-20 02:44:57,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1188.47 ms. Allocated memory was 34.6 MB in the beginning and 46.1 MB in the end (delta: 11.5 MB). Free memory was 8.4 MB in the beginning and 22.0 MB in the end (delta: -13.7 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:57,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.94 ms. Allocated memory is still 46.1 MB. Free memory was 22.0 MB in the beginning and 19.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:57,465 INFO L168 Benchmark]: Boogie Preprocessor took 35.53 ms. Allocated memory is still 46.1 MB. Free memory was 19.0 MB in the beginning and 17.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:57,465 INFO L168 Benchmark]: RCFGBuilder took 648.58 ms. Allocated memory was 46.1 MB in the beginning and 49.3 MB in the end (delta: 3.1 MB). Free memory was 16.9 MB in the beginning and 18.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:57,466 INFO L168 Benchmark]: TraceAbstraction took 9806.98 ms. Allocated memory was 49.3 MB in the beginning and 107.5 MB in the end (delta: 58.2 MB). Free memory was 17.6 MB in the beginning and 58.1 MB in the end (delta: -40.5 MB). Peak memory consumption was 17.7 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:57,467 INFO L168 Benchmark]: Witness Printer took 115.63 ms. Allocated memory is still 107.5 MB. Free memory was 58.1 MB in the beginning and 46.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. [2020-10-20 02:44:57,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 33.0 MB. Free memory was 17.6 MB in the beginning and 17.5 MB in the end (delta: 39.7 kB). Peak memory consumption was 39.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 1188.47 ms. Allocated memory was 34.6 MB in the beginning and 46.1 MB in the end (delta: 11.5 MB). Free memory was 8.4 MB in the beginning and 22.0 MB in the end (delta: -13.7 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 88.94 ms. Allocated memory is still 46.1 MB. Free memory was 22.0 MB in the beginning and 19.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 35.53 ms. Allocated memory is still 46.1 MB. Free memory was 19.0 MB in the beginning and 17.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 648.58 ms. Allocated memory was 46.1 MB in the beginning and 49.3 MB in the end (delta: 3.1 MB). Free memory was 16.9 MB in the beginning and 18.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 9806.98 ms. Allocated memory was 49.3 MB in the beginning and 107.5 MB in the end (delta: 58.2 MB). Free memory was 17.6 MB in the beginning and 58.1 MB in the end (delta: -40.5 MB). Peak memory consumption was 17.7 MB. Max. memory is 14.3 GB. * Witness Printer took 115.63 ms. Allocated memory is still 107.5 MB. Free memory was 58.1 MB in the beginning and 46.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5793 VarBasedMoverChecksPositive, 103 VarBasedMoverChecksNegative, 41 SemBasedMoverChecksPositive, 62 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 327 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.4s, 156 PlacesBefore, 40 PlacesAfterwards, 163 TransitionsBefore, 41 TransitionsAfterwards, 7732 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 95 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 6 ChoiceCompositions, 160 TotalNumberOfCompositions, 13181 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[(5)]; [L929] 0 pthread_mutex_t m; [L930] 0 _Bool flag=(0); [L1013] 0 pthread_t id1, id2; [L1015] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={3:0}, flag=0, m={11:0}, top=0] [L982] 1 int i; [L983] 1 unsigned int tmp; [L984] 1 i=0 VAL [arr={3:0}, flag=0, m={11:0}, top=0] [L984] COND TRUE 1 i<(5) [L954] COND FALSE 1 !(top==(5)) VAL [arr={3:0}, flag=0, m={11:0}, top=0] [L946] 1 return top; [L961] 1 stack[get_top()] = x [L938] 1 top++ [L964] 1 return 0; [L989] COND FALSE 1 !(push(arr,tmp)==(-1)) [L991] 1 flag=(1) VAL [arr={3:0}, flag=1, m={11:0}, top=1] [L984] 1 i++ VAL [arr={3:0}, flag=1, m={11:0}, top=1] [L1016] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={3:0}, flag=1, m={11:0}, top=1] [L998] 2 int i; [L999] 2 i=0 VAL [arr={3:0}, flag=1, m={11:0}, top=1] [L999] COND TRUE 2 i<(5) [L1002] COND TRUE 2 \read(flag) [L946] 2 return top; [L968] COND FALSE 2 !(get_top()==0) [L942] 2 top-- [L946] 2 return top; [L976] EXPR 2 stack[get_top()] [L976] 2 return stack[get_top()]; [L999] COND TRUE 2 i<(5) [L1002] COND TRUE 2 \read(flag) [L946] 2 return top; [L968] COND TRUE 2 get_top()==0 [L971] 2 return (-2); [L1004] COND TRUE 2 !(pop(arr)!=(-2)) [L12] COND FALSE 2 !(0) [L12] 2 __assert_fail ("0", "stack-2.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arr={3:0}, flag=1, m={11:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 150 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.5s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 383 SDtfs, 427 SDslu, 1038 SDs, 0 SdLazy, 710 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.8s 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: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 869 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 12912 SizeOfPredicates, 5 NumberOfNonLiveVariables, 385 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 6/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...