/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread/stack_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:41:01,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:41:01,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:41:01,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:41:01,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:41:01,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:41:01,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:41:01,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:41:01,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:41:01,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:41:01,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:41:01,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:41:01,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:41:01,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:41:01,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:41:01,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:41:01,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:41:01,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:41:01,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:41:01,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:41:01,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:41:01,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:41:01,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:41:01,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:41:01,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:41:01,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:41:01,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:41:01,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:41:01,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:41:01,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:41:01,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:41:01,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:41:01,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:41:01,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:41:01,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:41:01,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:41:01,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:41:01,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:41:01,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:41:01,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:41:01,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:41:01,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 11:41:01,256 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:41:01,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:41:01,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:41:01,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:41:01,258 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:41:01,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:41:01,258 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:41:01,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:41:01,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:41:01,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:41:01,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:41:01,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:41:01,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:41:01,259 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:41:01,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:41:01,260 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:41:01,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:41:01,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:41:01,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:41:01,261 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:41:01,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:41:01,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:41:01,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:41:01,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 11:41:01,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:41:01,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:41:01,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:41:01,262 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 11:41:01,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:41:01,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:41:01,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:41:01,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:41:01,609 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:41:01,610 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:41:01,610 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2020-10-16 11:41:01,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ba43ca37/17b59f14044d491c9b36b0e3e2920b4f/FLAG60f9543aa [2020-10-16 11:41:02,193 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:41:02,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/stack_longer-1.i [2020-10-16 11:41:02,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ba43ca37/17b59f14044d491c9b36b0e3e2920b4f/FLAG60f9543aa [2020-10-16 11:41:02,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ba43ca37/17b59f14044d491c9b36b0e3e2920b4f [2020-10-16 11:41:02,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:41:02,489 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:41:02,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:41:02,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:41:02,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:41:02,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:41:02" (1/1) ... [2020-10-16 11:41:02,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa7b936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:02, skipping insertion in model container [2020-10-16 11:41:02,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:41:02" (1/1) ... [2020-10-16 11:41:02,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:41:02,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:41:03,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:41:03,281 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:41:03,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:41:03,509 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:41:03,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:03 WrapperNode [2020-10-16 11:41:03,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:41:03,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:41:03,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:41:03,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:41:03,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:03" (1/1) ... [2020-10-16 11:41:03,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:03" (1/1) ... [2020-10-16 11:41:03,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:41:03,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:41:03,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:41:03,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:41:03,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:03" (1/1) ... [2020-10-16 11:41:03,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:03" (1/1) ... [2020-10-16 11:41:03,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:03" (1/1) ... [2020-10-16 11:41:03,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:03" (1/1) ... [2020-10-16 11:41:03,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:03" (1/1) ... [2020-10-16 11:41:03,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:03" (1/1) ... [2020-10-16 11:41:03,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:03" (1/1) ... [2020-10-16 11:41:03,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:41:03,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:41:03,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:41:03,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:41:03,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:41:03,710 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-16 11:41:03,711 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-16 11:41:03,712 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-16 11:41:03,712 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-16 11:41:03,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:41:03,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:41:03,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 11:41:03,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:41:03,715 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 11:41:03,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 11:41:03,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:41:03,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:41:03,720 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:41:04,324 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:41:04,324 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-16 11:41:04,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:41:04 BoogieIcfgContainer [2020-10-16 11:41:04,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:41:04,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:41:04,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:41:04,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:41:04,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:41:02" (1/3) ... [2020-10-16 11:41:04,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386fb582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:41:04, skipping insertion in model container [2020-10-16 11:41:04,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:03" (2/3) ... [2020-10-16 11:41:04,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386fb582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:41:04, skipping insertion in model container [2020-10-16 11:41:04,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:41:04" (3/3) ... [2020-10-16 11:41:04,338 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2020-10-16 11:41:04,352 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:41:04,352 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:41:04,362 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 11:41:04,363 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:41:04,433 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,434 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,434 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,436 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,437 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,437 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,437 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,437 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,437 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,438 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,438 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,438 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,438 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,439 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,439 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,439 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,439 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,439 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,440 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,440 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,442 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,443 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,443 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,443 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,443 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,446 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,446 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,447 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,451 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,452 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,452 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,454 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,454 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,454 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,454 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,455 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,455 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,455 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,455 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,458 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,459 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,459 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,459 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,459 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,460 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,460 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,460 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,461 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,461 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,462 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,462 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,462 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,462 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,463 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,463 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,463 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,463 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,464 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,464 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,464 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,464 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,465 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,465 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,465 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,465 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,465 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,466 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,466 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,466 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,467 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,467 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,467 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,469 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,469 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,470 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,472 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,473 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,473 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,474 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,481 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,481 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,482 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,482 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,483 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,483 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,484 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,484 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,484 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,484 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,485 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,485 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,485 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,485 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,486 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,486 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,486 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,486 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,486 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,489 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,490 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,495 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,495 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,495 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,495 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,496 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,496 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,496 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,496 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,496 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,497 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,497 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,497 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,497 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,497 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,498 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,498 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,498 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,498 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,498 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,499 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,499 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,499 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,499 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,514 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,514 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,515 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,515 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,515 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,515 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,515 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,515 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,516 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,517 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,517 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,517 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,517 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,517 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,517 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:04,526 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 11:41:04,541 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 11:41:04,557 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:41:04,557 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:41:04,557 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:41:04,557 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:41:04,557 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:41:04,557 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:41:04,558 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:41:04,558 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:41:04,572 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:41:04,573 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 145 transitions, 312 flow [2020-10-16 11:41:04,575 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 145 transitions, 312 flow [2020-10-16 11:41:04,577 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-10-16 11:41:04,654 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-10-16 11:41:04,654 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 11:41:04,663 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 383 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-16 11:41:04,671 INFO L117 LiptonReduction]: Number of co-enabled transitions 6532 [2020-10-16 11:41:06,927 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-16 11:41:07,056 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-16 11:41:07,801 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-10-16 11:41:08,024 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-16 11:41:08,064 INFO L132 LiptonReduction]: Checked pairs total: 11311 [2020-10-16 11:41:08,065 INFO L134 LiptonReduction]: Total number of compositions: 129 [2020-10-16 11:41:08,071 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 104 flow [2020-10-16 11:41:08,102 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 360 states. [2020-10-16 11:41:08,105 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-10-16 11:41:08,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 11:41:08,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:08,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 11:41:08,116 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:08,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:08,126 INFO L82 PathProgramCache]: Analyzing trace with hash 447198837, now seen corresponding path program 1 times [2020-10-16 11:41:08,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:08,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945507927] [2020-10-16 11:41:08,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:08,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:08,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945507927] [2020-10-16 11:41:08,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:08,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:41:08,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642502486] [2020-10-16 11:41:08,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:08,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:08,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:08,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:08,406 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 3 states. [2020-10-16 11:41:08,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:08,494 INFO L93 Difference]: Finished difference Result 577 states and 1453 transitions. [2020-10-16 11:41:08,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:08,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 11:41:08,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:08,532 INFO L225 Difference]: With dead ends: 577 [2020-10-16 11:41:08,532 INFO L226 Difference]: Without dead ends: 555 [2020-10-16 11:41:08,534 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 [2020-10-16 11:41:08,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-10-16 11:41:08,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 515. [2020-10-16 11:41:08,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-10-16 11:41:08,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 1354 transitions. [2020-10-16 11:41:08,656 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 1354 transitions. Word has length 6 [2020-10-16 11:41:08,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:08,656 INFO L481 AbstractCegarLoop]: Abstraction has 515 states and 1354 transitions. [2020-10-16 11:41:08,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:08,657 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 1354 transitions. [2020-10-16 11:41:08,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:41:08,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:08,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:08,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:41:08,659 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:08,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:08,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1139410892, now seen corresponding path program 1 times [2020-10-16 11:41:08,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:08,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109106172] [2020-10-16 11:41:08,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:08,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:08,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109106172] [2020-10-16 11:41:08,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:08,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:41:08,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743021605] [2020-10-16 11:41:08,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:08,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:08,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:08,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:08,838 INFO L87 Difference]: Start difference. First operand 515 states and 1354 transitions. Second operand 3 states. [2020-10-16 11:41:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:08,859 INFO L93 Difference]: Finished difference Result 620 states and 1596 transitions. [2020-10-16 11:41:08,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:08,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 11:41:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:08,865 INFO L225 Difference]: With dead ends: 620 [2020-10-16 11:41:08,866 INFO L226 Difference]: Without dead ends: 598 [2020-10-16 11:41:08,866 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 [2020-10-16 11:41:08,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-16 11:41:08,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 558. [2020-10-16 11:41:08,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-10-16 11:41:08,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1476 transitions. [2020-10-16 11:41:08,904 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1476 transitions. Word has length 9 [2020-10-16 11:41:08,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:08,906 INFO L481 AbstractCegarLoop]: Abstraction has 558 states and 1476 transitions. [2020-10-16 11:41:08,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:08,906 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1476 transitions. [2020-10-16 11:41:08,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:41:08,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:08,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:08,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:41:08,911 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:08,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:08,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1261077674, now seen corresponding path program 1 times [2020-10-16 11:41:08,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:08,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580732624] [2020-10-16 11:41:08,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:08,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:08,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580732624] [2020-10-16 11:41:08,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:08,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:41:08,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686318420] [2020-10-16 11:41:08,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:08,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:08,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:08,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:08,998 INFO L87 Difference]: Start difference. First operand 558 states and 1476 transitions. Second operand 3 states. [2020-10-16 11:41:09,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:09,018 INFO L93 Difference]: Finished difference Result 594 states and 1567 transitions. [2020-10-16 11:41:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:09,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 11:41:09,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:09,024 INFO L225 Difference]: With dead ends: 594 [2020-10-16 11:41:09,024 INFO L226 Difference]: Without dead ends: 594 [2020-10-16 11:41:09,025 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 [2020-10-16 11:41:09,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-10-16 11:41:09,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2020-10-16 11:41:09,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-10-16 11:41:09,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 1567 transitions. [2020-10-16 11:41:09,049 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 1567 transitions. Word has length 10 [2020-10-16 11:41:09,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:09,050 INFO L481 AbstractCegarLoop]: Abstraction has 594 states and 1567 transitions. [2020-10-16 11:41:09,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:09,050 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 1567 transitions. [2020-10-16 11:41:09,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:41:09,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:09,052 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:09,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:41:09,052 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:09,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:09,053 INFO L82 PathProgramCache]: Analyzing trace with hash -171507785, now seen corresponding path program 1 times [2020-10-16 11:41:09,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:09,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792602860] [2020-10-16 11:41:09,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:09,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:09,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792602860] [2020-10-16 11:41:09,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010104956] [2020-10-16 11:41:09,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:41:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:09,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-16 11:41:09,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 11:41:09,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:09,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 11:41:09,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-16 11:41:09,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421963589] [2020-10-16 11:41:09,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 11:41:09,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:09,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 11:41:09,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:41:09,309 INFO L87 Difference]: Start difference. First operand 594 states and 1567 transitions. Second operand 7 states. [2020-10-16 11:41:09,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:09,400 INFO L93 Difference]: Finished difference Result 894 states and 2283 transitions. [2020-10-16 11:41:09,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:41:09,401 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-16 11:41:09,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:09,408 INFO L225 Difference]: With dead ends: 894 [2020-10-16 11:41:09,408 INFO L226 Difference]: Without dead ends: 894 [2020-10-16 11:41:09,409 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 [2020-10-16 11:41:09,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-10-16 11:41:09,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 728. [2020-10-16 11:41:09,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-10-16 11:41:09,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1913 transitions. [2020-10-16 11:41:09,440 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1913 transitions. Word has length 14 [2020-10-16 11:41:09,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:09,440 INFO L481 AbstractCegarLoop]: Abstraction has 728 states and 1913 transitions. [2020-10-16 11:41:09,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 11:41:09,440 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1913 transitions. [2020-10-16 11:41:09,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:41:09,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:09,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:09,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 11:41:09,658 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:09,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:09,659 INFO L82 PathProgramCache]: Analyzing trace with hash -284826607, now seen corresponding path program 1 times [2020-10-16 11:41:09,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:09,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369742953] [2020-10-16 11:41:09,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:09,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:09,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369742953] [2020-10-16 11:41:09,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:09,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:41:09,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562683841] [2020-10-16 11:41:09,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:09,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:09,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:09,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:09,780 INFO L87 Difference]: Start difference. First operand 728 states and 1913 transitions. Second operand 3 states. [2020-10-16 11:41:09,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:09,815 INFO L93 Difference]: Finished difference Result 375 states and 842 transitions. [2020-10-16 11:41:09,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:09,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-16 11:41:09,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:09,818 INFO L225 Difference]: With dead ends: 375 [2020-10-16 11:41:09,819 INFO L226 Difference]: Without dead ends: 375 [2020-10-16 11:41:09,819 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 [2020-10-16 11:41:09,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2020-10-16 11:41:09,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 355. [2020-10-16 11:41:09,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-10-16 11:41:09,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 792 transitions. [2020-10-16 11:41:09,832 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 792 transitions. Word has length 17 [2020-10-16 11:41:09,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:09,833 INFO L481 AbstractCegarLoop]: Abstraction has 355 states and 792 transitions. [2020-10-16 11:41:09,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:09,833 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 792 transitions. [2020-10-16 11:41:09,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:41:09,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:09,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:09,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:41:09,835 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:09,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:09,836 INFO L82 PathProgramCache]: Analyzing trace with hash 473969269, now seen corresponding path program 1 times [2020-10-16 11:41:09,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:09,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783314876] [2020-10-16 11:41:09,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:09,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:09,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783314876] [2020-10-16 11:41:09,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:09,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:41:09,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540415491] [2020-10-16 11:41:09,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:41:09,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:09,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:41:09,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:41:09,950 INFO L87 Difference]: Start difference. First operand 355 states and 792 transitions. Second operand 5 states. [2020-10-16 11:41:10,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:10,027 INFO L93 Difference]: Finished difference Result 486 states and 1076 transitions. [2020-10-16 11:41:10,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:41:10,028 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 11:41:10,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:10,031 INFO L225 Difference]: With dead ends: 486 [2020-10-16 11:41:10,032 INFO L226 Difference]: Without dead ends: 486 [2020-10-16 11:41:10,032 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 [2020-10-16 11:41:10,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-10-16 11:41:10,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 400. [2020-10-16 11:41:10,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-10-16 11:41:10,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 897 transitions. [2020-10-16 11:41:10,045 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 897 transitions. Word has length 18 [2020-10-16 11:41:10,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:10,046 INFO L481 AbstractCegarLoop]: Abstraction has 400 states and 897 transitions. [2020-10-16 11:41:10,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:41:10,046 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 897 transitions. [2020-10-16 11:41:10,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 11:41:10,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:10,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:10,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:41:10,047 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:10,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:10,048 INFO L82 PathProgramCache]: Analyzing trace with hash -2059233600, now seen corresponding path program 1 times [2020-10-16 11:41:10,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:10,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569350217] [2020-10-16 11:41:10,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:10,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569350217] [2020-10-16 11:41:10,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:10,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 11:41:10,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437688840] [2020-10-16 11:41:10,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 11:41:10,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:10,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 11:41:10,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:41:10,601 INFO L87 Difference]: Start difference. First operand 400 states and 897 transitions. Second operand 9 states. [2020-10-16 11:41:11,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:11,099 INFO L93 Difference]: Finished difference Result 740 states and 1639 transitions. [2020-10-16 11:41:11,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 11:41:11,100 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 11:41:11,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:11,104 INFO L225 Difference]: With dead ends: 740 [2020-10-16 11:41:11,105 INFO L226 Difference]: Without dead ends: 740 [2020-10-16 11:41:11,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:41:11,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-10-16 11:41:11,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 538. [2020-10-16 11:41:11,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-10-16 11:41:11,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1231 transitions. [2020-10-16 11:41:11,125 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1231 transitions. Word has length 22 [2020-10-16 11:41:11,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:11,126 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 1231 transitions. [2020-10-16 11:41:11,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 11:41:11,126 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1231 transitions. [2020-10-16 11:41:11,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 11:41:11,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:11,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:11,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:41:11,128 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:11,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:11,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1187016382, now seen corresponding path program 2 times [2020-10-16 11:41:11,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:11,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901170571] [2020-10-16 11:41:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:11,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901170571] [2020-10-16 11:41:11,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:11,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 11:41:11,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200200229] [2020-10-16 11:41:11,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 11:41:11,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:11,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 11:41:11,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:41:11,365 INFO L87 Difference]: Start difference. First operand 538 states and 1231 transitions. Second operand 9 states. [2020-10-16 11:41:11,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:11,693 INFO L93 Difference]: Finished difference Result 869 states and 1945 transitions. [2020-10-16 11:41:11,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 11:41:11,694 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 11:41:11,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:11,700 INFO L225 Difference]: With dead ends: 869 [2020-10-16 11:41:11,700 INFO L226 Difference]: Without dead ends: 869 [2020-10-16 11:41:11,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:41:11,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2020-10-16 11:41:11,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 524. [2020-10-16 11:41:11,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-16 11:41:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1194 transitions. [2020-10-16 11:41:11,726 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1194 transitions. Word has length 22 [2020-10-16 11:41:11,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:11,726 INFO L481 AbstractCegarLoop]: Abstraction has 524 states and 1194 transitions. [2020-10-16 11:41:11,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 11:41:11,726 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1194 transitions. [2020-10-16 11:41:11,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 11:41:11,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:11,727 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-16 11:41:11,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 11:41:11,728 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:11,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:11,729 INFO L82 PathProgramCache]: Analyzing trace with hash -13506823, now seen corresponding path program 2 times [2020-10-16 11:41:11,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:11,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677488760] [2020-10-16 11:41:11,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:11,805 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:11,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677488760] [2020-10-16 11:41:11,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720628701] [2020-10-16 11:41:11,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:41:11,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 11:41:11,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 11:41:11,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 11:41:11,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 11:41:11,928 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:11,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 11:41:11,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-16 11:41:11,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781409091] [2020-10-16 11:41:11,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 11:41:11,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:11,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 11:41:11,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:41:11,931 INFO L87 Difference]: Start difference. First operand 524 states and 1194 transitions. Second operand 9 states. [2020-10-16 11:41:12,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:12,014 INFO L93 Difference]: Finished difference Result 782 states and 1737 transitions. [2020-10-16 11:41:12,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:41:12,014 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 11:41:12,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:12,019 INFO L225 Difference]: With dead ends: 782 [2020-10-16 11:41:12,019 INFO L226 Difference]: Without dead ends: 782 [2020-10-16 11:41:12,020 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 [2020-10-16 11:41:12,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2020-10-16 11:41:12,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 616. [2020-10-16 11:41:12,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2020-10-16 11:41:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 1398 transitions. [2020-10-16 11:41:12,039 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 1398 transitions. Word has length 22 [2020-10-16 11:41:12,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:12,039 INFO L481 AbstractCegarLoop]: Abstraction has 616 states and 1398 transitions. [2020-10-16 11:41:12,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 11:41:12,039 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 1398 transitions. [2020-10-16 11:41:12,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 11:41:12,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:12,041 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, 1] [2020-10-16 11:41:12,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 11:41:12,255 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:12,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:12,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1609274498, now seen corresponding path program 1 times [2020-10-16 11:41:12,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:12,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465123460] [2020-10-16 11:41:12,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:12,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465123460] [2020-10-16 11:41:12,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091707933] [2020-10-16 11:41:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 11:41:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:12,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 11:41:12,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 11:41:12,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 11:41:12,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-16 11:41:12,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2020-10-16 11:41:12,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864481383] [2020-10-16 11:41:12,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:41:12,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:12,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:41:12,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:41:12,450 INFO L87 Difference]: Start difference. First operand 616 states and 1398 transitions. Second operand 6 states. [2020-10-16 11:41:12,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:12,548 INFO L93 Difference]: Finished difference Result 848 states and 1883 transitions. [2020-10-16 11:41:12,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:41:12,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-16 11:41:12,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:12,554 INFO L225 Difference]: With dead ends: 848 [2020-10-16 11:41:12,554 INFO L226 Difference]: Without dead ends: 848 [2020-10-16 11:41:12,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-16 11:41:12,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2020-10-16 11:41:12,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 644. [2020-10-16 11:41:12,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-10-16 11:41:12,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1474 transitions. [2020-10-16 11:41:12,578 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1474 transitions. Word has length 25 [2020-10-16 11:41:12,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:12,578 INFO L481 AbstractCegarLoop]: Abstraction has 644 states and 1474 transitions. [2020-10-16 11:41:12,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:41:12,579 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1474 transitions. [2020-10-16 11:41:12,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 11:41:12,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:12,580 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:12,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-16 11:41:12,788 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:12,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:12,789 INFO L82 PathProgramCache]: Analyzing trace with hash 2000642871, now seen corresponding path program 2 times [2020-10-16 11:41:12,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:12,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77603431] [2020-10-16 11:41:12,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:12,851 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:12,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77603431] [2020-10-16 11:41:12,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477681617] [2020-10-16 11:41:12,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 11:41:12,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 11:41:12,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 11:41:12,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-16 11:41:12,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 11:41:13,013 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:13,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-16 11:41:13,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2020-10-16 11:41:13,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756568615] [2020-10-16 11:41:13,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 11:41:13,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:13,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 11:41:13,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:41:13,016 INFO L87 Difference]: Start difference. First operand 644 states and 1474 transitions. Second operand 7 states. [2020-10-16 11:41:13,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:13,167 INFO L93 Difference]: Finished difference Result 847 states and 1882 transitions. [2020-10-16 11:41:13,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 11:41:13,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-10-16 11:41:13,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:13,173 INFO L225 Difference]: With dead ends: 847 [2020-10-16 11:41:13,173 INFO L226 Difference]: Without dead ends: 847 [2020-10-16 11:41:13,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:41:13,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2020-10-16 11:41:13,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 643. [2020-10-16 11:41:13,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-10-16 11:41:13,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1478 transitions. [2020-10-16 11:41:13,195 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1478 transitions. Word has length 26 [2020-10-16 11:41:13,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:13,195 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 1478 transitions. [2020-10-16 11:41:13,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 11:41:13,195 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1478 transitions. [2020-10-16 11:41:13,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 11:41:13,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:13,197 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:13,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 11:41:13,411 INFO L429 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:13,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:13,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1648397582, now seen corresponding path program 1 times [2020-10-16 11:41:13,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:13,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438285648] [2020-10-16 11:41:13,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:41:13,442 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:41:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:41:13,500 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:41:13,531 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 11:41:13,532 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 11:41:13,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 11:41:13,533 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 11:41:13,533 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 11:41:13,534 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 11:41:13,541 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [572] [572] L971-6-->L939: Formula: (let ((.cse0 (mod t1Thread1of1ForFork0_~tmp~0_Out1088095541 4294967296)) (.cse1 (select |#pthreadsMutex_In1088095541| |~#m~0.base_In1088095541|))) (and (= |t1Thread1of1ForFork0_#t~nondet43_In1088095541| t1Thread1of1ForFork0_~tmp~0_Out1088095541) (= |~#arr~0.offset_In1088095541| |t1Thread1of1ForFork0_push_#in~stack.offset_Out1088095541|) (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out1088095541| 1) (< t1Thread1of1ForFork0_~i~0_In1088095541 400) (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out1088095541| t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out1088095541) (= .cse0 |t1Thread1of1ForFork0_push_#in~x_Out1088095541|) (= |#pthreadsMutex_Out1088095541| (store |#pthreadsMutex_In1088095541| |~#m~0.base_In1088095541| (store .cse1 |~#m~0.offset_In1088095541| 1))) (= |~#arr~0.base_In1088095541| |t1Thread1of1ForFork0_push_#in~stack.base_Out1088095541|) (< .cse0 400) (= (select .cse1 |~#m~0.offset_In1088095541|) 0))) InVars {~#arr~0.offset=|~#arr~0.offset_In1088095541|, #pthreadsMutex=|#pthreadsMutex_In1088095541|, ~#m~0.base=|~#m~0.base_In1088095541|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In1088095541, ~#m~0.offset=|~#m~0.offset_In1088095541|, ~#arr~0.base=|~#arr~0.base_In1088095541|, t1Thread1of1ForFork0_#t~nondet43=|t1Thread1of1ForFork0_#t~nondet43_In1088095541|} OutVars{~#arr~0.offset=|~#arr~0.offset_In1088095541|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out1088095541|, #pthreadsMutex=|#pthreadsMutex_Out1088095541|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In1088095541, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out1088095541, t1Thread1of1ForFork0_push_#t~ret35=|t1Thread1of1ForFork0_push_#t~ret35_Out1088095541|, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out1088095541|, ~#m~0.base=|~#m~0.base_In1088095541|, t1Thread1of1ForFork0_push_#t~nondet33=|t1Thread1of1ForFork0_push_#t~nondet33_Out1088095541|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out1088095541, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out1088095541, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out1088095541|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_Out1088095541, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out1088095541, ~#m~0.offset=|~#m~0.offset_In1088095541|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out1088095541|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out1088095541|, t1Thread1of1ForFork0_#t~nondet42=|t1Thread1of1ForFork0_#t~nondet42_Out1088095541|, ~#arr~0.base=|~#arr~0.base_In1088095541|, t1Thread1of1ForFork0_#t~nondet43=|t1Thread1of1ForFork0_#t~nondet43_Out1088095541|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, #pthreadsMutex, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#t~ret35, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#t~nondet33, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_~tmp~0, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond, t1Thread1of1ForFork0_push_#in~stack.offset, t1Thread1of1ForFork0_#t~nondet42, t1Thread1of1ForFork0_#t~nondet43] because there is no mapped edge [2020-10-16 11:41:13,544 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [561] [561] L976-2-->L979: Formula: (and (= ~flag~0_Out211355008 1) (not (= (- 1) |t1Thread1of1ForFork0_#t~ret44_In211355008|)) (<= 0 (+ |t1Thread1of1ForFork0_#t~ret44_In211355008| 2147483648)) (<= |t1Thread1of1ForFork0_#t~ret44_In211355008| 2147483647)) InVars {t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_In211355008|} OutVars{t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_Out211355008|, ~flag~0=~flag~0_Out211355008} AuxVars[] AssignedVars[t1Thread1of1ForFork0_#t~ret44, ~flag~0] because there is no mapped edge [2020-10-16 11:41:13,551 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [573] [573] L991-3-->L986-6: Formula: (and (= (+ t2Thread1of1ForFork1_~i~1_Out-1645539926 (- 1)) t2Thread1of1ForFork1_~i~1_In-1645539926) (not (= |t2Thread1of1ForFork1_#t~ret47_In-1645539926| (- 2))) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret47_In-1645539926| 2147483648)) (= |#pthreadsMutex_Out-1645539926| (store |#pthreadsMutex_In-1645539926| |~#m~0.base_In-1645539926| (store (select |#pthreadsMutex_In-1645539926| |~#m~0.base_In-1645539926|) |~#m~0.offset_In-1645539926| 0))) (<= |t2Thread1of1ForFork1_#t~ret47_In-1645539926| 2147483647)) InVars {#pthreadsMutex=|#pthreadsMutex_In-1645539926|, ~#m~0.base=|~#m~0.base_In-1645539926|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_In-1645539926|, ~#m~0.offset=|~#m~0.offset_In-1645539926|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In-1645539926} OutVars{#pthreadsMutex=|#pthreadsMutex_Out-1645539926|, ~#m~0.base=|~#m~0.base_In-1645539926|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_Out-1645539926|, ~#m~0.offset=|~#m~0.offset_In-1645539926|, t2Thread1of1ForFork1_#t~post45=|t2Thread1of1ForFork1_#t~post45_Out-1645539926|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out-1645539926} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_#t~ret47, t2Thread1of1ForFork1_#t~post45, t2Thread1of1ForFork1_~i~1] because there is no mapped edge [2020-10-16 11:41:13,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:41:13 BasicIcfg [2020-10-16 11:41:13,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:41:13,622 INFO L168 Benchmark]: Toolchain (without parser) took 11132.71 ms. Allocated memory was 140.0 MB in the beginning and 321.9 MB in the end (delta: 181.9 MB). Free memory was 101.1 MB in the beginning and 251.5 MB in the end (delta: -150.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:13,623 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:41:13,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1019.99 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 133.3 MB in the end (delta: -32.5 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:13,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.93 ms. Allocated memory is still 203.4 MB. Free memory was 133.3 MB in the beginning and 130.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:13,625 INFO L168 Benchmark]: Boogie Preprocessor took 40.84 ms. Allocated memory is still 203.4 MB. Free memory was 130.6 MB in the beginning and 128.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:13,628 INFO L168 Benchmark]: RCFGBuilder took 706.62 ms. Allocated memory is still 203.4 MB. Free memory was 128.5 MB in the beginning and 95.5 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:13,629 INFO L168 Benchmark]: TraceAbstraction took 9290.49 ms. Allocated memory was 203.4 MB in the beginning and 321.9 MB in the end (delta: 118.5 MB). Free memory was 94.8 MB in the beginning and 251.5 MB in the end (delta: -156.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:41:13,633 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1019.99 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 133.3 MB in the end (delta: -32.5 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 68.93 ms. Allocated memory is still 203.4 MB. Free memory was 133.3 MB in the beginning and 130.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.84 ms. Allocated memory is still 203.4 MB. Free memory was 130.6 MB in the beginning and 128.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 706.62 ms. Allocated memory is still 203.4 MB. Free memory was 128.5 MB in the beginning and 95.5 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9290.49 ms. Allocated memory was 203.4 MB in the beginning and 321.9 MB in the end (delta: 118.5 MB). Free memory was 94.8 MB in the beginning and 251.5 MB in the end (delta: -156.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3800 VarBasedMoverChecksPositive, 58 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 222 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.4s, 140 PlacesBefore, 41 PlacesAfterwards, 145 TransitionsBefore, 41 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 5 ChoiceCompositions, 129 TotalNumberOfCompositions, 11311 MoverChecksTotal - CounterExampleResult [Line: 921]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; [L917] 0 static unsigned int arr[(400)]; [L918] 0 pthread_mutex_t m; [L919] 0 _Bool flag=(0); [L1000] 0 pthread_t id1, id2; [L1002] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={3:0}, flag=0, m={9:0}, top=0] [L969] 1 int i; [L970] 1 unsigned int tmp; [L971] 1 i=0 VAL [arr={3:0}, flag=0, m={9:0}, top=0] [L1003] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={3:0}, flag=0, m={9:0}, top=0] [L941] COND FALSE 1 !(top==(400)) [L933] 1 return top; [L948] 1 stack[get_top()] = x VAL [arr={3:0}, flag=0, m={9:0}, top=0] [L925] 1 top++ [L951] 1 return 0; [L971] 1 i++ VAL [arr={3:0}, flag=1, m={9:0}, top=1] [L985] 2 int i; [L986] 2 i=0 VAL [arr={3:0}, flag=1, m={9:0}, top=1] [L986] COND TRUE 2 i<(400) [L989] COND TRUE 2 \read(flag) [L933] 2 return top; [L955] COND FALSE 2 !(get_top()==0) VAL [arr={3:0}, flag=1, m={9:0}, top=1] [L929] 2 top-- [L933] 2 return top; [L963] EXPR 2 stack[get_top()] [L963] 2 return stack[get_top()]; [L986] COND TRUE 2 i<(400) [L989] COND TRUE 2 \read(flag) [L933] 2 return top; [L955] COND TRUE 2 get_top()==0 [L958] 2 return (-2); [L991] COND TRUE 2 !(pop(arr)!=(-2)) [L921] 2 __VERIFIER_error() VAL [arr={3:0}, flag=1, m={9:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.9s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 556 SDtfs, 641 SDslu, 1194 SDs, 0 SdLazy, 533 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=728occurred 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: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1473 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 263 ConstructedInterpolants, 0 QuantifiedInterpolants, 52768 SizeOfPredicates, 12 NumberOfNonLiveVariables, 735 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 20/56 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...