/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 0.1.25-507b705 [2020-09-11 16:15:32,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 16:15:32,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 16:15:32,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 16:15:32,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 16:15:32,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 16:15:32,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 16:15:32,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 16:15:32,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 16:15:32,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 16:15:32,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 16:15:32,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 16:15:32,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 16:15:32,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 16:15:32,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 16:15:32,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 16:15:32,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 16:15:32,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 16:15:32,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 16:15:32,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 16:15:32,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 16:15:32,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 16:15:32,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 16:15:32,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 16:15:32,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 16:15:32,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 16:15:32,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 16:15:32,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 16:15:32,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 16:15:32,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 16:15:32,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 16:15:32,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 16:15:32,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 16:15:32,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 16:15:32,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 16:15:32,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 16:15:32,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 16:15:32,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 16:15:32,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 16:15:32,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 16:15:32,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 16:15:32,638 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 [2020-09-11 16:15:32,678 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 16:15:32,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 16:15:32,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 16:15:32,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 16:15:32,681 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 16:15:32,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 16:15:32,681 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 16:15:32,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 16:15:32,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 16:15:32,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 16:15:32,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 16:15:32,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 16:15:32,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 16:15:32,684 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 16:15:32,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 16:15:32,684 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 16:15:32,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 16:15:32,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 16:15:32,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 16:15:32,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 16:15:32,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 16:15:32,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 16:15:32,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 16:15:32,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-11 16:15:32,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 16:15:32,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 16:15:32,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 16:15:32,686 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-11 16:15:32,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 16:15:33,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 16:15:33,238 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 16:15:33,244 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 16:15:33,246 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 16:15:33,247 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 16:15:33,248 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2020-09-11 16:15:33,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f78dcc4b3/0965eb24469b4049b011a723457ac531/FLAG3aadfd790 [2020-09-11 16:15:34,031 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 16:15:34,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/stack_longer-1.i [2020-09-11 16:15:34,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f78dcc4b3/0965eb24469b4049b011a723457ac531/FLAG3aadfd790 [2020-09-11 16:15:34,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f78dcc4b3/0965eb24469b4049b011a723457ac531 [2020-09-11 16:15:34,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 16:15:34,280 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 16:15:34,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 16:15:34,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 16:15:34,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 16:15:34,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:15:34" (1/1) ... [2020-09-11 16:15:34,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67abc2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:34, skipping insertion in model container [2020-09-11 16:15:34,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:15:34" (1/1) ... [2020-09-11 16:15:34,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 16:15:34,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 16:15:35,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 16:15:35,031 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 16:15:35,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 16:15:35,258 INFO L208 MainTranslator]: Completed translation [2020-09-11 16:15:35,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:35 WrapperNode [2020-09-11 16:15:35,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 16:15:35,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 16:15:35,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 16:15:35,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 16:15:35,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:35" (1/1) ... [2020-09-11 16:15:35,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:35" (1/1) ... [2020-09-11 16:15:35,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 16:15:35,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 16:15:35,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 16:15:35,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 16:15:35,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:35" (1/1) ... [2020-09-11 16:15:35,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:35" (1/1) ... [2020-09-11 16:15:35,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:35" (1/1) ... [2020-09-11 16:15:35,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:35" (1/1) ... [2020-09-11 16:15:35,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:35" (1/1) ... [2020-09-11 16:15:35,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:35" (1/1) ... [2020-09-11 16:15:35,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:35" (1/1) ... [2020-09-11 16:15:35,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 16:15:35,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 16:15:35,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 16:15:35,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 16:15:35,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:35" (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 [2020-09-11 16:15:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-09-11 16:15:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-09-11 16:15:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-09-11 16:15:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-09-11 16:15:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 16:15:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 16:15:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-11 16:15:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 16:15:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-09-11 16:15:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-11 16:15:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 16:15:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 16:15:35,505 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 16:15:36,087 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 16:15:36,087 INFO L295 CfgBuilder]: Removed 26 assume(true) statements. [2020-09-11 16:15:36,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:15:36 BoogieIcfgContainer [2020-09-11 16:15:36,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 16:15:36,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 16:15:36,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 16:15:36,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 16:15:36,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 04:15:34" (1/3) ... [2020-09-11 16:15:36,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ae61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 04:15:36, skipping insertion in model container [2020-09-11 16:15:36,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:15:35" (2/3) ... [2020-09-11 16:15:36,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ae61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 04:15:36, skipping insertion in model container [2020-09-11 16:15:36,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:15:36" (3/3) ... [2020-09-11 16:15:36,103 INFO L109 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2020-09-11 16:15:36,116 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 16:15:36,117 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-11 16:15:36,129 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-11 16:15:36,130 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 16:15:36,172 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,173 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,173 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,173 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,174 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,174 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,174 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,202 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,202 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,203 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,203 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,203 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,203 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,204 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,204 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,204 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,204 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,204 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,205 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,205 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,205 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,205 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,206 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,206 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,206 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,206 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,206 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,207 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,207 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,207 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,207 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,207 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,208 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,208 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,208 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,208 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,208 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,209 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,209 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,209 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,209 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,210 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,210 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,210 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,210 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,211 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,211 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,211 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,211 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,212 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,212 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,212 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,212 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,212 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,213 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,213 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,213 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,213 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,214 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,214 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,214 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,214 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,215 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,215 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,215 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,215 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,216 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,216 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,217 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,217 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,217 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,218 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,218 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,218 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,218 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,219 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,220 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,220 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,220 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,220 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,221 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,221 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,221 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,221 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,221 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,222 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,222 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,222 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,222 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,222 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,223 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,223 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,223 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,223 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,224 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,224 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,224 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,224 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,224 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,225 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,225 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,225 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,225 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,226 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,226 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,226 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,226 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,227 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,227 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,227 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,227 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,227 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,228 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,228 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,228 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,228 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,229 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,229 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,229 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,229 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,229 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,230 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,230 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,230 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,230 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,231 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,231 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,231 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,231 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,231 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,236 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,236 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,237 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,237 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,237 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,237 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,237 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,237 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,238 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,238 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,238 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,238 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,238 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,239 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,239 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,239 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,239 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,239 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,240 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,240 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,240 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,240 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,240 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,248 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,248 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,249 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,249 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,249 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,249 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,249 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,250 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,250 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,250 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,250 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,250 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,251 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,251 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,251 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,251 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,251 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,252 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,252 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 16:15:36,287 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-11 16:15:36,314 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 16:15:36,314 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 16:15:36,314 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-11 16:15:36,314 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 16:15:36,314 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 16:15:36,314 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 16:15:36,314 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 16:15:36,315 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 16:15:36,337 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 145 transitions, 312 flow [2020-09-11 16:15:36,340 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-09-11 16:15:36,419 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-09-11 16:15:36,419 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-11 16:15:36,428 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. [2020-09-11 16:15:36,436 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-09-11 16:15:36,498 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-09-11 16:15:36,498 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-11 16:15:36,503 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. [2020-09-11 16:15:36,515 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6532 [2020-09-11 16:15:36,517 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-11 16:15:39,137 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-09-11 16:15:39,267 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-09-11 16:15:40,092 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-09-11 16:15:40,337 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-11 16:15:40,373 INFO L206 etLargeBlockEncoding]: Checked pairs total: 8325 [2020-09-11 16:15:40,373 INFO L214 etLargeBlockEncoding]: Total number of compositions: 124 [2020-09-11 16:15:40,378 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 104 flow [2020-09-11 16:15:40,407 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 360 states. [2020-09-11 16:15:40,410 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-09-11 16:15:40,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-11 16:15:40,420 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 16:15:40,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-11 16:15:40,422 INFO L427 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 16:15:40,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 16:15:40,431 INFO L82 PathProgramCache]: Analyzing trace with hash 447198837, now seen corresponding path program 1 times [2020-09-11 16:15:40,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 16:15:40,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328838569] [2020-09-11 16:15:40,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 16:15:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:40,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:40,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328838569] [2020-09-11 16:15:40,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 16:15:40,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 16:15:40,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238856478] [2020-09-11 16:15:40,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 16:15:40,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 16:15:40,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 16:15:40,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 16:15:40,769 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 3 states. [2020-09-11 16:15:40,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 16:15:40,863 INFO L93 Difference]: Finished difference Result 577 states and 1453 transitions. [2020-09-11 16:15:40,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 16:15:40,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-09-11 16:15:40,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 16:15:40,892 INFO L225 Difference]: With dead ends: 577 [2020-09-11 16:15:40,892 INFO L226 Difference]: Without dead ends: 555 [2020-09-11 16:15:40,894 INFO L675 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 [2020-09-11 16:15:40,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-11 16:15:40,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 515. [2020-09-11 16:15:40,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-09-11 16:15:41,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 1354 transitions. [2020-09-11 16:15:41,004 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 1354 transitions. Word has length 6 [2020-09-11 16:15:41,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 16:15:41,004 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 1354 transitions. [2020-09-11 16:15:41,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 16:15:41,005 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 1354 transitions. [2020-09-11 16:15:41,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 16:15:41,006 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 16:15:41,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 16:15:41,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 16:15:41,007 INFO L427 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 16:15:41,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 16:15:41,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1139410892, now seen corresponding path program 1 times [2020-09-11 16:15:41,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 16:15:41,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974847230] [2020-09-11 16:15:41,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 16:15:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:41,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:41,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974847230] [2020-09-11 16:15:41,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 16:15:41,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 16:15:41,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51306118] [2020-09-11 16:15:41,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 16:15:41,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 16:15:41,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 16:15:41,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 16:15:41,201 INFO L87 Difference]: Start difference. First operand 515 states and 1354 transitions. Second operand 3 states. [2020-09-11 16:15:41,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 16:15:41,227 INFO L93 Difference]: Finished difference Result 620 states and 1596 transitions. [2020-09-11 16:15:41,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 16:15:41,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-11 16:15:41,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 16:15:41,236 INFO L225 Difference]: With dead ends: 620 [2020-09-11 16:15:41,236 INFO L226 Difference]: Without dead ends: 598 [2020-09-11 16:15:41,242 INFO L675 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 [2020-09-11 16:15:41,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-09-11 16:15:41,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 558. [2020-09-11 16:15:41,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-09-11 16:15:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1476 transitions. [2020-09-11 16:15:41,295 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1476 transitions. Word has length 9 [2020-09-11 16:15:41,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 16:15:41,297 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 1476 transitions. [2020-09-11 16:15:41,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 16:15:41,297 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1476 transitions. [2020-09-11 16:15:41,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 16:15:41,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 16:15:41,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 16:15:41,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 16:15:41,299 INFO L427 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 16:15:41,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 16:15:41,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1261077674, now seen corresponding path program 1 times [2020-09-11 16:15:41,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 16:15:41,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643259703] [2020-09-11 16:15:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 16:15:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:41,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643259703] [2020-09-11 16:15:41,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 16:15:41,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 16:15:41,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142566879] [2020-09-11 16:15:41,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 16:15:41,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 16:15:41,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 16:15:41,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 16:15:41,392 INFO L87 Difference]: Start difference. First operand 558 states and 1476 transitions. Second operand 3 states. [2020-09-11 16:15:41,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 16:15:41,413 INFO L93 Difference]: Finished difference Result 594 states and 1567 transitions. [2020-09-11 16:15:41,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 16:15:41,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-11 16:15:41,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 16:15:41,421 INFO L225 Difference]: With dead ends: 594 [2020-09-11 16:15:41,421 INFO L226 Difference]: Without dead ends: 594 [2020-09-11 16:15:41,422 INFO L675 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 [2020-09-11 16:15:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-09-11 16:15:41,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2020-09-11 16:15:41,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-09-11 16:15:41,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 1567 transitions. [2020-09-11 16:15:41,449 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 1567 transitions. Word has length 10 [2020-09-11 16:15:41,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 16:15:41,449 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 1567 transitions. [2020-09-11 16:15:41,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 16:15:41,449 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 1567 transitions. [2020-09-11 16:15:41,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 16:15:41,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 16:15:41,460 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 16:15:41,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 16:15:41,460 INFO L427 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 16:15:41,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 16:15:41,461 INFO L82 PathProgramCache]: Analyzing trace with hash -171507785, now seen corresponding path program 1 times [2020-09-11 16:15:41,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 16:15:41,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923863139] [2020-09-11 16:15:41,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 16:15:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:41,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:41,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923863139] [2020-09-11 16:15:41,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412092093] [2020-09-11 16:15:41,624 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 [2020-09-11 16:15:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:41,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-11 16:15:41,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-11 16:15:41,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:41,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-11 16:15:41,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-09-11 16:15:41,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069157812] [2020-09-11 16:15:41,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-11 16:15:41,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 16:15:41,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-11 16:15:41,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-11 16:15:41,781 INFO L87 Difference]: Start difference. First operand 594 states and 1567 transitions. Second operand 7 states. [2020-09-11 16:15:41,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 16:15:41,865 INFO L93 Difference]: Finished difference Result 894 states and 2283 transitions. [2020-09-11 16:15:41,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 16:15:41,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-09-11 16:15:41,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 16:15:41,872 INFO L225 Difference]: With dead ends: 894 [2020-09-11 16:15:41,872 INFO L226 Difference]: Without dead ends: 894 [2020-09-11 16:15:41,872 INFO L675 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 [2020-09-11 16:15:41,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-09-11 16:15:41,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 728. [2020-09-11 16:15:41,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-09-11 16:15:41,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1913 transitions. [2020-09-11 16:15:41,903 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1913 transitions. Word has length 14 [2020-09-11 16:15:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 16:15:41,903 INFO L479 AbstractCegarLoop]: Abstraction has 728 states and 1913 transitions. [2020-09-11 16:15:41,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-11 16:15:41,904 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1913 transitions. [2020-09-11 16:15:41,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-11 16:15:41,905 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 16:15:41,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 16:15:42,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-11 16:15:42,119 INFO L427 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 16:15:42,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 16:15:42,119 INFO L82 PathProgramCache]: Analyzing trace with hash -284826607, now seen corresponding path program 1 times [2020-09-11 16:15:42,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 16:15:42,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56064106] [2020-09-11 16:15:42,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 16:15:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:42,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:42,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56064106] [2020-09-11 16:15:42,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 16:15:42,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 16:15:42,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940530532] [2020-09-11 16:15:42,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 16:15:42,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 16:15:42,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 16:15:42,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 16:15:42,229 INFO L87 Difference]: Start difference. First operand 728 states and 1913 transitions. Second operand 3 states. [2020-09-11 16:15:42,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 16:15:42,253 INFO L93 Difference]: Finished difference Result 375 states and 842 transitions. [2020-09-11 16:15:42,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 16:15:42,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-09-11 16:15:42,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 16:15:42,256 INFO L225 Difference]: With dead ends: 375 [2020-09-11 16:15:42,256 INFO L226 Difference]: Without dead ends: 375 [2020-09-11 16:15:42,257 INFO L675 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 [2020-09-11 16:15:42,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2020-09-11 16:15:42,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 355. [2020-09-11 16:15:42,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-11 16:15:42,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 792 transitions. [2020-09-11 16:15:42,269 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 792 transitions. Word has length 17 [2020-09-11 16:15:42,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 16:15:42,270 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 792 transitions. [2020-09-11 16:15:42,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 16:15:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 792 transitions. [2020-09-11 16:15:42,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 16:15:42,271 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 16:15:42,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 16:15:42,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 16:15:42,272 INFO L427 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 16:15:42,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 16:15:42,272 INFO L82 PathProgramCache]: Analyzing trace with hash 473969269, now seen corresponding path program 1 times [2020-09-11 16:15:42,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 16:15:42,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334116299] [2020-09-11 16:15:42,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 16:15:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:42,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334116299] [2020-09-11 16:15:42,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 16:15:42,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 16:15:42,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858498639] [2020-09-11 16:15:42,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 16:15:42,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 16:15:42,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 16:15:42,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 16:15:42,419 INFO L87 Difference]: Start difference. First operand 355 states and 792 transitions. Second operand 5 states. [2020-09-11 16:15:42,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 16:15:42,520 INFO L93 Difference]: Finished difference Result 486 states and 1076 transitions. [2020-09-11 16:15:42,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 16:15:42,521 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-11 16:15:42,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 16:15:42,524 INFO L225 Difference]: With dead ends: 486 [2020-09-11 16:15:42,524 INFO L226 Difference]: Without dead ends: 486 [2020-09-11 16:15:42,524 INFO L675 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 [2020-09-11 16:15:42,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-11 16:15:42,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 400. [2020-09-11 16:15:42,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-09-11 16:15:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 897 transitions. [2020-09-11 16:15:42,539 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 897 transitions. Word has length 18 [2020-09-11 16:15:42,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 16:15:42,539 INFO L479 AbstractCegarLoop]: Abstraction has 400 states and 897 transitions. [2020-09-11 16:15:42,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 16:15:42,539 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 897 transitions. [2020-09-11 16:15:42,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-11 16:15:42,541 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 16:15:42,541 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] [2020-09-11 16:15:42,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 16:15:42,541 INFO L427 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 16:15:42,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 16:15:42,542 INFO L82 PathProgramCache]: Analyzing trace with hash -2059233600, now seen corresponding path program 1 times [2020-09-11 16:15:42,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 16:15:42,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586927928] [2020-09-11 16:15:42,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 16:15:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:43,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586927928] [2020-09-11 16:15:43,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 16:15:43,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-11 16:15:43,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399749258] [2020-09-11 16:15:43,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-11 16:15:43,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 16:15:43,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-11 16:15:43,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-11 16:15:43,137 INFO L87 Difference]: Start difference. First operand 400 states and 897 transitions. Second operand 9 states. [2020-09-11 16:15:43,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 16:15:43,625 INFO L93 Difference]: Finished difference Result 740 states and 1639 transitions. [2020-09-11 16:15:43,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-11 16:15:43,626 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-11 16:15:43,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 16:15:43,631 INFO L225 Difference]: With dead ends: 740 [2020-09-11 16:15:43,631 INFO L226 Difference]: Without dead ends: 740 [2020-09-11 16:15:43,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-11 16:15:43,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-09-11 16:15:43,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 538. [2020-09-11 16:15:43,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-09-11 16:15:43,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1231 transitions. [2020-09-11 16:15:43,647 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1231 transitions. Word has length 22 [2020-09-11 16:15:43,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 16:15:43,648 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 1231 transitions. [2020-09-11 16:15:43,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-11 16:15:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1231 transitions. [2020-09-11 16:15:43,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-11 16:15:43,649 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 16:15:43,650 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] [2020-09-11 16:15:43,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 16:15:43,650 INFO L427 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 16:15:43,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 16:15:43,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1187016382, now seen corresponding path program 2 times [2020-09-11 16:15:43,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 16:15:43,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259985223] [2020-09-11 16:15:43,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 16:15:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:43,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:43,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259985223] [2020-09-11 16:15:43,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 16:15:43,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-11 16:15:43,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754918996] [2020-09-11 16:15:43,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-11 16:15:43,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 16:15:43,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-11 16:15:43,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-11 16:15:43,996 INFO L87 Difference]: Start difference. First operand 538 states and 1231 transitions. Second operand 9 states. [2020-09-11 16:15:44,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 16:15:44,357 INFO L93 Difference]: Finished difference Result 869 states and 1945 transitions. [2020-09-11 16:15:44,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-11 16:15:44,358 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-11 16:15:44,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 16:15:44,364 INFO L225 Difference]: With dead ends: 869 [2020-09-11 16:15:44,364 INFO L226 Difference]: Without dead ends: 869 [2020-09-11 16:15:44,365 INFO L675 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 [2020-09-11 16:15:44,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2020-09-11 16:15:44,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 524. [2020-09-11 16:15:44,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-09-11 16:15:44,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1194 transitions. [2020-09-11 16:15:44,383 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1194 transitions. Word has length 22 [2020-09-11 16:15:44,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 16:15:44,383 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 1194 transitions. [2020-09-11 16:15:44,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-11 16:15:44,384 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1194 transitions. [2020-09-11 16:15:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-11 16:15:44,385 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 16:15:44,385 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-09-11 16:15:44,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 16:15:44,386 INFO L427 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 16:15:44,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 16:15:44,386 INFO L82 PathProgramCache]: Analyzing trace with hash -13506823, now seen corresponding path program 2 times [2020-09-11 16:15:44,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 16:15:44,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006346017] [2020-09-11 16:15:44,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 16:15:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:44,480 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:44,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006346017] [2020-09-11 16:15:44,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596150201] [2020-09-11 16:15:44,481 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 [2020-09-11 16:15:44,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-11 16:15:44,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-11 16:15:44,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-11 16:15:44,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-11 16:15:44,613 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:44,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-11 16:15:44,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-09-11 16:15:44,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755227299] [2020-09-11 16:15:44,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-11 16:15:44,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 16:15:44,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-11 16:15:44,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-11 16:15:44,616 INFO L87 Difference]: Start difference. First operand 524 states and 1194 transitions. Second operand 9 states. [2020-09-11 16:15:44,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 16:15:44,708 INFO L93 Difference]: Finished difference Result 782 states and 1737 transitions. [2020-09-11 16:15:44,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 16:15:44,709 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-11 16:15:44,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 16:15:44,713 INFO L225 Difference]: With dead ends: 782 [2020-09-11 16:15:44,714 INFO L226 Difference]: Without dead ends: 782 [2020-09-11 16:15:44,714 INFO L675 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 [2020-09-11 16:15:44,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2020-09-11 16:15:44,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 616. [2020-09-11 16:15:44,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2020-09-11 16:15:44,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 1398 transitions. [2020-09-11 16:15:44,735 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 1398 transitions. Word has length 22 [2020-09-11 16:15:44,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 16:15:44,736 INFO L479 AbstractCegarLoop]: Abstraction has 616 states and 1398 transitions. [2020-09-11 16:15:44,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-11 16:15:44,736 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 1398 transitions. [2020-09-11 16:15:44,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-11 16:15:44,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 16:15:44,737 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] [2020-09-11 16:15:44,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-11 16:15:44,953 INFO L427 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 16:15:44,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 16:15:44,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1609274498, now seen corresponding path program 1 times [2020-09-11 16:15:44,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 16:15:44,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50397092] [2020-09-11 16:15:44,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 16:15:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:45,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50397092] [2020-09-11 16:15:45,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318810093] [2020-09-11 16:15:45,059 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 [2020-09-11 16:15:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:45,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-11 16:15:45,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-11 16:15:45,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-11 16:15:45,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-11 16:15:45,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2020-09-11 16:15:45,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264142194] [2020-09-11 16:15:45,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 16:15:45,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 16:15:45,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 16:15:45,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-11 16:15:45,170 INFO L87 Difference]: Start difference. First operand 616 states and 1398 transitions. Second operand 6 states. [2020-09-11 16:15:45,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 16:15:45,262 INFO L93 Difference]: Finished difference Result 848 states and 1883 transitions. [2020-09-11 16:15:45,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 16:15:45,262 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-09-11 16:15:45,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 16:15:45,268 INFO L225 Difference]: With dead ends: 848 [2020-09-11 16:15:45,268 INFO L226 Difference]: Without dead ends: 848 [2020-09-11 16:15:45,268 INFO L675 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 [2020-09-11 16:15:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2020-09-11 16:15:45,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 644. [2020-09-11 16:15:45,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-09-11 16:15:45,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1474 transitions. [2020-09-11 16:15:45,290 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1474 transitions. Word has length 25 [2020-09-11 16:15:45,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 16:15:45,291 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 1474 transitions. [2020-09-11 16:15:45,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 16:15:45,291 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1474 transitions. [2020-09-11 16:15:45,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-11 16:15:45,293 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 16:15:45,293 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 16:15:45,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-09-11 16:15:45,507 INFO L427 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 16:15:45,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 16:15:45,508 INFO L82 PathProgramCache]: Analyzing trace with hash 2000642871, now seen corresponding path program 2 times [2020-09-11 16:15:45,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 16:15:45,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64334148] [2020-09-11 16:15:45,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 16:15:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 16:15:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:45,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64334148] [2020-09-11 16:15:45,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582298685] [2020-09-11 16:15:45,612 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 [2020-09-11 16:15:45,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-11 16:15:45,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-11 16:15:45,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2020-09-11 16:15:45,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-11 16:15:45,756 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 16:15:45,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-11 16:15:45,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2020-09-11 16:15:45,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270503159] [2020-09-11 16:15:45,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-11 16:15:45,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 16:15:45,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-11 16:15:45,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-11 16:15:45,759 INFO L87 Difference]: Start difference. First operand 644 states and 1474 transitions. Second operand 7 states. [2020-09-11 16:15:45,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 16:15:45,873 INFO L93 Difference]: Finished difference Result 847 states and 1882 transitions. [2020-09-11 16:15:45,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-11 16:15:45,874 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-09-11 16:15:45,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 16:15:45,878 INFO L225 Difference]: With dead ends: 847 [2020-09-11 16:15:45,878 INFO L226 Difference]: Without dead ends: 847 [2020-09-11 16:15:45,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-11 16:15:45,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2020-09-11 16:15:45,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 643. [2020-09-11 16:15:45,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-09-11 16:15:45,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1478 transitions. [2020-09-11 16:15:45,900 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1478 transitions. Word has length 26 [2020-09-11 16:15:45,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 16:15:45,900 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 1478 transitions. [2020-09-11 16:15:45,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-11 16:15:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1478 transitions. [2020-09-11 16:15:45,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-11 16:15:45,902 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 16:15:45,902 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] [2020-09-11 16:15:46,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-11 16:15:46,118 INFO L427 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 16:15:46,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 16:15:46,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1648397582, now seen corresponding path program 1 times [2020-09-11 16:15:46,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 16:15:46,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529279470] [2020-09-11 16:15:46,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 16:15:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-11 16:15:46,184 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-11 16:15:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-11 16:15:46,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-11 16:15:46,283 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-11 16:15:46,284 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-11 16:15:46,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-11 16:15:46,285 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-09-11 16:15:46,285 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-09-11 16:15:46,286 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-09-11 16:15:46,293 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [572] [572] L971-6-->L939: Formula: (let ((.cse0 (select |#pthreadsMutex_In-117551473| |~#m~0.base_In-117551473|)) (.cse1 (mod t1Thread1of1ForFork0_~tmp~0_Out-117551473 4294967296))) (and (= |t1Thread1of1ForFork0_push_#in~stack.offset_Out-117551473| |~#arr~0.offset_In-117551473|) (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out-117551473| 1) (< t1Thread1of1ForFork0_~i~0_In-117551473 400) (= |#pthreadsMutex_Out-117551473| (store |#pthreadsMutex_In-117551473| |~#m~0.base_In-117551473| (store .cse0 |~#m~0.offset_In-117551473| 1))) (= |t1Thread1of1ForFork0_push_#in~x_Out-117551473| .cse1) (= (select .cse0 |~#m~0.offset_In-117551473|) 0) (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out-117551473 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out-117551473|) (= t1Thread1of1ForFork0_~tmp~0_Out-117551473 |t1Thread1of1ForFork0_#t~nondet43_In-117551473|) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out-117551473| |~#arr~0.base_In-117551473|) (< .cse1 400))) InVars {~#arr~0.offset=|~#arr~0.offset_In-117551473|, #pthreadsMutex=|#pthreadsMutex_In-117551473|, ~#m~0.base=|~#m~0.base_In-117551473|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In-117551473, ~#m~0.offset=|~#m~0.offset_In-117551473|, ~#arr~0.base=|~#arr~0.base_In-117551473|, t1Thread1of1ForFork0_#t~nondet43=|t1Thread1of1ForFork0_#t~nondet43_In-117551473|} OutVars{~#arr~0.offset=|~#arr~0.offset_In-117551473|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out-117551473|, #pthreadsMutex=|#pthreadsMutex_Out-117551473|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In-117551473, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out-117551473, t1Thread1of1ForFork0_push_#t~ret35=|t1Thread1of1ForFork0_push_#t~ret35_Out-117551473|, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out-117551473|, ~#m~0.base=|~#m~0.base_In-117551473|, t1Thread1of1ForFork0_push_#t~nondet33=|t1Thread1of1ForFork0_push_#t~nondet33_Out-117551473|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out-117551473, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out-117551473, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out-117551473|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_Out-117551473, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out-117551473, ~#m~0.offset=|~#m~0.offset_In-117551473|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out-117551473|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out-117551473|, t1Thread1of1ForFork0_#t~nondet42=|t1Thread1of1ForFork0_#t~nondet42_Out-117551473|, ~#arr~0.base=|~#arr~0.base_In-117551473|, t1Thread1of1ForFork0_#t~nondet43=|t1Thread1of1ForFork0_#t~nondet43_Out-117551473|} 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 [2020-09-11 16:15:46,297 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [561] [561] L976-2-->L979: Formula: (and (<= 0 (+ |t1Thread1of1ForFork0_#t~ret44_In-267590108| 2147483648)) (= ~flag~0_Out-267590108 1) (not (= (- 1) |t1Thread1of1ForFork0_#t~ret44_In-267590108|)) (<= |t1Thread1of1ForFork0_#t~ret44_In-267590108| 2147483647)) InVars {t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_In-267590108|} OutVars{t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_Out-267590108|, ~flag~0=~flag~0_Out-267590108} AuxVars[] AssignedVars[t1Thread1of1ForFork0_#t~ret44, ~flag~0] because there is no mapped edge [2020-09-11 16:15:46,302 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [573] [573] L991-3-->L986-6: Formula: (and (not (= (- 2) |t2Thread1of1ForFork1_#t~ret47_In-512400120|)) (<= |t2Thread1of1ForFork1_#t~ret47_In-512400120| 2147483647) (= |#pthreadsMutex_Out-512400120| (store |#pthreadsMutex_In-512400120| |~#m~0.base_In-512400120| (store (select |#pthreadsMutex_In-512400120| |~#m~0.base_In-512400120|) |~#m~0.offset_In-512400120| 0))) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret47_In-512400120| 2147483648)) (= (+ t2Thread1of1ForFork1_~i~1_Out-512400120 (- 1)) t2Thread1of1ForFork1_~i~1_In-512400120)) InVars {#pthreadsMutex=|#pthreadsMutex_In-512400120|, ~#m~0.base=|~#m~0.base_In-512400120|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_In-512400120|, ~#m~0.offset=|~#m~0.offset_In-512400120|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In-512400120} OutVars{#pthreadsMutex=|#pthreadsMutex_Out-512400120|, ~#m~0.base=|~#m~0.base_In-512400120|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_Out-512400120|, ~#m~0.offset=|~#m~0.offset_In-512400120|, t2Thread1of1ForFork1_#t~post45=|t2Thread1of1ForFork1_#t~post45_Out-512400120|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out-512400120} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_#t~ret47, t2Thread1of1ForFork1_#t~post45, t2Thread1of1ForFork1_~i~1] because there is no mapped edge [2020-09-11 16:15:46,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 04:15:46 BasicIcfg [2020-09-11 16:15:46,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 16:15:46,361 INFO L168 Benchmark]: Toolchain (without parser) took 12088.65 ms. Allocated memory was 138.9 MB in the beginning and 332.4 MB in the end (delta: 193.5 MB). Free memory was 100.1 MB in the beginning and 274.0 MB in the end (delta: -173.9 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-09-11 16:15:46,362 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-11 16:15:46,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 978.45 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 99.4 MB in the beginning and 131.4 MB in the end (delta: -32.1 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. [2020-09-11 16:15:46,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.57 ms. Allocated memory is still 200.8 MB. Free memory was 131.4 MB in the beginning and 128.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-11 16:15:46,365 INFO L168 Benchmark]: Boogie Preprocessor took 51.83 ms. Allocated memory is still 200.8 MB. Free memory was 128.8 MB in the beginning and 126.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 16:15:46,365 INFO L168 Benchmark]: RCFGBuilder took 697.57 ms. Allocated memory is still 200.8 MB. Free memory was 126.7 MB in the beginning and 93.6 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-09-11 16:15:46,366 INFO L168 Benchmark]: TraceAbstraction took 10265.53 ms. Allocated memory was 200.8 MB in the beginning and 332.4 MB in the end (delta: 131.6 MB). Free memory was 93.0 MB in the beginning and 274.0 MB in the end (delta: -181.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 16:15:46,370 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 978.45 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 99.4 MB in the beginning and 131.4 MB in the end (delta: -32.1 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 78.57 ms. Allocated memory is still 200.8 MB. Free memory was 131.4 MB in the beginning and 128.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.83 ms. Allocated memory is still 200.8 MB. Free memory was 128.8 MB in the beginning and 126.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 697.57 ms. Allocated memory is still 200.8 MB. Free memory was 126.7 MB in the beginning and 93.6 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10265.53 ms. Allocated memory was 200.8 MB in the beginning and 332.4 MB in the end (delta: 131.6 MB). Free memory was 93.0 MB in the beginning and 274.0 MB in the end (delta: -181.0 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 LbeTime: 4.0s, 140 ProgramPointsBefore, 41 ProgramPointsAfterwards, 145 TransitionsBefore, 41 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 5 ChoiceCompositions, 3614 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 8325 CheckedPairsTotal, 124 TotalNumberOfCompositions - 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: 9.9s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, 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, 1.1s 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.7s 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...