/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread/stack_longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:42:41,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:42:41,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:42:41,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:42:41,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:42:41,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:42:41,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:42:41,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:42:41,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:42:41,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:42:41,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:42:41,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:42:41,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:42:41,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:42:41,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:42:41,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:42:41,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:42:41,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:42:41,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:42:41,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:42:41,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:42:41,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:42:41,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:42:41,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:42:41,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:42:41,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:42:41,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:42:41,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:42:41,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:42:41,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:42:41,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:42:41,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:42:41,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:42:41,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:42:41,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:42:41,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:42:41,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:42:41,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:42:41,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:42:41,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:42:41,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:42:41,313 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-21 23:42:41,335 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:42:41,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:42:41,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:42:41,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:42:41,337 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:42:41,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:42:41,337 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:42:41,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:42:41,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:42:41,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:42:41,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:42:41,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:42:41,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:42:41,339 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:42:41,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:42:41,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:42:41,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:42:41,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:42:41,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:42:41,340 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:42:41,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:42:41,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:42:41,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:42:41,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:42:41,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:42:41,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:42:41,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:42:41,341 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-21 23:42:41,342 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:42:41,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:42:41,342 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-21 23:42:41,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:42:41,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:42:41,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:42:41,654 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:42:41,656 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:42:41,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-2.i [2020-10-21 23:42:41,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a8755de5/64e44090f5b54d1aae7056eb48fe7714/FLAG1addeaef6 [2020-10-21 23:42:42,276 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:42:42,277 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-2.i [2020-10-21 23:42:42,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a8755de5/64e44090f5b54d1aae7056eb48fe7714/FLAG1addeaef6 [2020-10-21 23:42:42,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a8755de5/64e44090f5b54d1aae7056eb48fe7714 [2020-10-21 23:42:42,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:42:42,753 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:42:42,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:42:42,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:42:42,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:42:42,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:42:42" (1/1) ... [2020-10-21 23:42:42,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61525b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:42, skipping insertion in model container [2020-10-21 23:42:42,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:42:42" (1/1) ... [2020-10-21 23:42:42,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:42:42,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:42:43,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:42:43,332 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:42:43,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:42:43,543 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:42:43,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:43 WrapperNode [2020-10-21 23:42:43,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:42:43,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:42:43,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:42:43,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:42:43,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:43" (1/1) ... [2020-10-21 23:42:43,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:43" (1/1) ... [2020-10-21 23:42:43,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:42:43,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:42:43,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:42:43,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:42:43,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:43" (1/1) ... [2020-10-21 23:42:43,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:43" (1/1) ... [2020-10-21 23:42:43,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:43" (1/1) ... [2020-10-21 23:42:43,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:43" (1/1) ... [2020-10-21 23:42:43,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:43" (1/1) ... [2020-10-21 23:42:43,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:43" (1/1) ... [2020-10-21 23:42:43,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:43" (1/1) ... [2020-10-21 23:42:43,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:42:43,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:42:43,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:42:43,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:42:43,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:42:43,721 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-21 23:42:43,722 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-21 23:42:43,722 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-21 23:42:43,722 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-21 23:42:43,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:42:43,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:42:43,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 23:42:43,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:42:43,723 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 23:42:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:42:43,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:42:43,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:42:43,726 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:42:44,447 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:42:44,447 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-10-21 23:42:44,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:42:44 BoogieIcfgContainer [2020-10-21 23:42:44,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:42:44,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:42:44,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:42:44,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:42:44,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:42:42" (1/3) ... [2020-10-21 23:42:44,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6469a1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:42:44, skipping insertion in model container [2020-10-21 23:42:44,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:42:43" (2/3) ... [2020-10-21 23:42:44,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6469a1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:42:44, skipping insertion in model container [2020-10-21 23:42:44,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:42:44" (3/3) ... [2020-10-21 23:42:44,459 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longer-2.i [2020-10-21 23:42:44,470 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:42:44,483 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:42:44,491 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 23:42:44,492 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:42:44,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,527 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,527 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,527 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,528 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,529 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,529 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,529 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,529 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,529 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,530 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,530 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,530 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,530 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,530 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,531 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,531 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,531 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,531 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,531 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,532 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,532 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,532 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,532 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,532 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,532 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,533 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,534 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,534 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,534 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,534 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,534 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,535 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,535 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,535 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,535 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,536 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,536 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,536 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,536 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,536 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,537 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,537 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,537 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,537 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,537 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,538 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,538 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,538 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,538 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,539 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,539 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,539 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,539 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,539 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,540 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,540 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,541 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,541 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,541 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,541 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,542 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,542 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,542 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,542 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,542 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,543 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,543 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,543 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,543 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,544 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,544 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,544 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,544 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,545 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,545 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,545 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,545 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,545 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,545 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,546 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,546 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,546 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,546 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,546 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,547 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,547 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,549 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,549 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,550 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,550 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,550 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,550 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,550 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,551 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,551 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,554 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,554 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,555 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,555 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,555 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,555 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,555 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,556 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,557 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,557 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,559 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,559 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,559 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,560 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,560 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,560 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,560 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,564 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,565 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,565 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,566 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,566 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,566 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,566 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,566 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,567 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,567 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,567 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,567 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,567 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,568 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,568 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,568 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,569 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,569 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,569 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,569 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,569 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,570 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,570 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,570 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,570 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,577 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,577 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,577 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,578 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,578 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,578 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,578 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,578 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,578 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,578 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,579 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,579 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,580 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,581 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,581 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,581 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,581 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,581 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,582 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,582 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:42:44,597 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 23:42:44,610 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-21 23:42:44,631 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:42:44,631 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:42:44,631 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:42:44,631 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-21 23:42:44,631 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:42:44,632 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:42:44,632 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:42:44,633 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:42:44,655 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:42:44,656 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 152 transitions, 326 flow [2020-10-21 23:42:44,659 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 152 transitions, 326 flow [2020-10-21 23:42:44,661 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 145 places, 152 transitions, 326 flow [2020-10-21 23:42:44,746 INFO L129 PetriNetUnfolder]: 13/152 cut-off events. [2020-10-21 23:42:44,747 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 23:42:44,756 INFO L80 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 152 events. 13/152 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 397 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 116. Up to 3 conditions per place. [2020-10-21 23:42:44,763 INFO L116 LiptonReduction]: Number of co-enabled transitions 6874 [2020-10-21 23:42:45,061 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-21 23:42:46,445 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-21 23:42:47,541 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-21 23:42:47,645 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-21 23:42:48,450 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 132 [2020-10-21 23:42:48,794 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-21 23:42:48,823 INFO L131 LiptonReduction]: Checked pairs total: 12236 [2020-10-21 23:42:48,824 INFO L133 LiptonReduction]: Total number of compositions: 149 [2020-10-21 23:42:48,835 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 40 transitions, 102 flow [2020-10-21 23:42:48,907 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 331 states. [2020-10-21 23:42:48,910 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-10-21 23:42:48,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 23:42:48,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:42:48,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-21 23:42:48,923 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:42:48,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:42:48,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1786919100, now seen corresponding path program 1 times [2020-10-21 23:42:48,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:42:48,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569262041] [2020-10-21 23:42:48,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:42:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:42:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:42:49,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569262041] [2020-10-21 23:42:49,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:42:49,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:42:49,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [111402158] [2020-10-21 23:42:49,256 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:42:49,258 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:42:49,271 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-21 23:42:49,272 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:42:49,276 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:42:49,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:42:49,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:42:49,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:42:49,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:42:49,294 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 3 states. [2020-10-21 23:42:49,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:42:49,360 INFO L93 Difference]: Finished difference Result 504 states and 1247 transitions. [2020-10-21 23:42:49,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:42:49,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-21 23:42:49,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:42:49,381 INFO L225 Difference]: With dead ends: 504 [2020-10-21 23:42:49,381 INFO L226 Difference]: Without dead ends: 460 [2020-10-21 23:42:49,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:42:49,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-10-21 23:42:49,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 420. [2020-10-21 23:42:49,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-21 23:42:49,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 1095 transitions. [2020-10-21 23:42:49,468 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 1095 transitions. Word has length 6 [2020-10-21 23:42:49,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:42:49,469 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 1095 transitions. [2020-10-21 23:42:49,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:42:49,469 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 1095 transitions. [2020-10-21 23:42:49,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 23:42:49,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:42:49,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:42:49,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:42:49,471 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:42:49,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:42:49,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1640121652, now seen corresponding path program 1 times [2020-10-21 23:42:49,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:42:49,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806771656] [2020-10-21 23:42:49,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:42:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:42:49,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:42:49,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806771656] [2020-10-21 23:42:49,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:42:49,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:42:49,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [467021480] [2020-10-21 23:42:49,611 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:42:49,612 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:42:49,634 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-21 23:42:49,634 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:42:49,635 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:42:49,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:42:49,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:42:49,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:42:49,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:42:49,638 INFO L87 Difference]: Start difference. First operand 420 states and 1095 transitions. Second operand 3 states. [2020-10-21 23:42:49,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:42:49,659 INFO L93 Difference]: Finished difference Result 464 states and 1205 transitions. [2020-10-21 23:42:49,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:42:49,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-21 23:42:49,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:42:49,666 INFO L225 Difference]: With dead ends: 464 [2020-10-21 23:42:49,666 INFO L226 Difference]: Without dead ends: 464 [2020-10-21 23:42:49,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:42:49,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-21 23:42:49,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2020-10-21 23:42:49,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-21 23:42:49,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1205 transitions. [2020-10-21 23:42:49,694 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1205 transitions. Word has length 10 [2020-10-21 23:42:49,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:42:49,695 INFO L481 AbstractCegarLoop]: Abstraction has 464 states and 1205 transitions. [2020-10-21 23:42:49,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:42:49,695 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1205 transitions. [2020-10-21 23:42:49,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 23:42:49,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:42:49,697 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:42:49,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:42:49,697 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:42:49,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:42:49,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1317417300, now seen corresponding path program 1 times [2020-10-21 23:42:49,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:42:49,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761726071] [2020-10-21 23:42:49,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:42:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:42:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:42:49,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761726071] [2020-10-21 23:42:49,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974239951] [2020-10-21 23:42:49,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:42:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:42:49,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-21 23:42:49,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:42:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:42:49,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:42:49,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-21 23:42:49,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1128791884] [2020-10-21 23:42:49,900 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:42:49,901 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:42:49,903 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-10-21 23:42:49,904 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:42:49,904 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:42:49,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:42:49,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:42:49,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:42:49,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:42:49,905 INFO L87 Difference]: Start difference. First operand 464 states and 1205 transitions. Second operand 5 states. [2020-10-21 23:42:49,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:42:49,985 INFO L93 Difference]: Finished difference Result 775 states and 1949 transitions. [2020-10-21 23:42:49,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:42:49,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-21 23:42:49,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:42:49,991 INFO L225 Difference]: With dead ends: 775 [2020-10-21 23:42:49,992 INFO L226 Difference]: Without dead ends: 775 [2020-10-21 23:42:49,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 23:42:49,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2020-10-21 23:42:50,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 592. [2020-10-21 23:42:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-10-21 23:42:50,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1551 transitions. [2020-10-21 23:42:50,026 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1551 transitions. Word has length 13 [2020-10-21 23:42:50,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:42:50,027 INFO L481 AbstractCegarLoop]: Abstraction has 592 states and 1551 transitions. [2020-10-21 23:42:50,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:42:50,027 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1551 transitions. [2020-10-21 23:42:50,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 23:42:50,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:42:50,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:42:50,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-21 23:42:50,245 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:42:50,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:42:50,246 INFO L82 PathProgramCache]: Analyzing trace with hash 150162657, now seen corresponding path program 1 times [2020-10-21 23:42:50,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:42:50,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503520043] [2020-10-21 23:42:50,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:42:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:42:50,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:42:50,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503520043] [2020-10-21 23:42:50,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:42:50,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:42:50,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [102304439] [2020-10-21 23:42:50,286 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:42:50,288 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:42:50,292 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 24 transitions. [2020-10-21 23:42:50,292 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:42:50,311 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:42:50,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:42:50,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:42:50,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:42:50,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:42:50,313 INFO L87 Difference]: Start difference. First operand 592 states and 1551 transitions. Second operand 3 states. [2020-10-21 23:42:50,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:42:50,333 INFO L93 Difference]: Finished difference Result 311 states and 689 transitions. [2020-10-21 23:42:50,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:42:50,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-21 23:42:50,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:42:50,336 INFO L225 Difference]: With dead ends: 311 [2020-10-21 23:42:50,336 INFO L226 Difference]: Without dead ends: 311 [2020-10-21 23:42:50,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:42:50,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-10-21 23:42:50,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 301. [2020-10-21 23:42:50,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-10-21 23:42:50,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 662 transitions. [2020-10-21 23:42:50,346 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 662 transitions. Word has length 16 [2020-10-21 23:42:50,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:42:50,347 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 662 transitions. [2020-10-21 23:42:50,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:42:50,347 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 662 transitions. [2020-10-21 23:42:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 23:42:50,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:42:50,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:42:50,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:42:50,350 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:42:50,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:42:50,350 INFO L82 PathProgramCache]: Analyzing trace with hash 129653450, now seen corresponding path program 1 times [2020-10-21 23:42:50,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:42:50,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521070036] [2020-10-21 23:42:50,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:42:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:42:50,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:42:50,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521070036] [2020-10-21 23:42:50,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:42:50,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:42:50,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1995749705] [2020-10-21 23:42:50,390 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:42:50,393 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:42:50,399 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 57 transitions. [2020-10-21 23:42:50,400 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:42:50,415 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:42:50,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:42:50,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:42:50,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:42:50,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:42:50,416 INFO L87 Difference]: Start difference. First operand 301 states and 662 transitions. Second operand 3 states. [2020-10-21 23:42:50,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:42:50,461 INFO L93 Difference]: Finished difference Result 379 states and 830 transitions. [2020-10-21 23:42:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:42:50,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-21 23:42:50,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:42:50,464 INFO L225 Difference]: With dead ends: 379 [2020-10-21 23:42:50,465 INFO L226 Difference]: Without dead ends: 379 [2020-10-21 23:42:50,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:42:50,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-10-21 23:42:50,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 319. [2020-10-21 23:42:50,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-21 23:42:50,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 695 transitions. [2020-10-21 23:42:50,474 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 695 transitions. Word has length 17 [2020-10-21 23:42:50,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:42:50,475 INFO L481 AbstractCegarLoop]: Abstraction has 319 states and 695 transitions. [2020-10-21 23:42:50,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:42:50,475 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 695 transitions. [2020-10-21 23:42:50,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-21 23:42:50,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:42:50,477 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-21 23:42:50,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:42:50,477 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:42:50,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:42:50,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1112399292, now seen corresponding path program 2 times [2020-10-21 23:42:50,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:42:50,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436055231] [2020-10-21 23:42:50,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:42:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:42:50,555 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:42:50,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436055231] [2020-10-21 23:42:50,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032234483] [2020-10-21 23:42:50,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:42:50,642 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 23:42:50,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:42:50,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-21 23:42:50,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:42:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:42:50,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:42:50,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-21 23:42:50,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [553036819] [2020-10-21 23:42:50,679 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:42:50,683 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:42:50,687 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 20 transitions. [2020-10-21 23:42:50,688 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:42:50,688 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:42:50,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-21 23:42:50,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:42:50,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-21 23:42:50,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-21 23:42:50,689 INFO L87 Difference]: Start difference. First operand 319 states and 695 transitions. Second operand 7 states. [2020-10-21 23:42:50,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:42:50,776 INFO L93 Difference]: Finished difference Result 520 states and 1122 transitions. [2020-10-21 23:42:50,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:42:50,777 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-21 23:42:50,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:42:50,780 INFO L225 Difference]: With dead ends: 520 [2020-10-21 23:42:50,780 INFO L226 Difference]: Without dead ends: 520 [2020-10-21 23:42:50,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-21 23:42:50,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-10-21 23:42:50,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 396. [2020-10-21 23:42:50,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2020-10-21 23:42:50,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 864 transitions. [2020-10-21 23:42:50,795 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 864 transitions. Word has length 20 [2020-10-21 23:42:50,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:42:50,795 INFO L481 AbstractCegarLoop]: Abstraction has 396 states and 864 transitions. [2020-10-21 23:42:50,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-21 23:42:50,795 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 864 transitions. [2020-10-21 23:42:50,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-21 23:42:50,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:42:50,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:42:51,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:42:51,005 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:42:51,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:42:51,006 INFO L82 PathProgramCache]: Analyzing trace with hash 2122602692, now seen corresponding path program 1 times [2020-10-21 23:42:51,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:42:51,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753949707] [2020-10-21 23:42:51,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:42:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:42:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:42:51,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753949707] [2020-10-21 23:42:51,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:42:51,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-21 23:42:51,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1573987723] [2020-10-21 23:42:51,680 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:42:51,683 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:42:51,691 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 61 transitions. [2020-10-21 23:42:51,692 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:42:51,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:42:51,940 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 59321 column 29: unknown constant v_#memory_int_56 at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1454) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:222) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:145) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript$DiffTransformer.checkOrAddAxiom(DiffWrapperScript.java:161) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript$DiffTransformer.convertApplicationTerm(DiffWrapperScript.java:171) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:339) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:109) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:59) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:164) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:134) at de.uni_freiburg.informatik.ultimate.lib.mcr.McrUtils.abstractVariables(McrUtils.java:32) at de.uni_freiburg.informatik.ultimate.lib.mcr.SpWpInterpolantProvider.addInterpolants(SpWpInterpolantProvider.java:123) at de.uni_freiburg.informatik.ultimate.lib.mcr.McrAutomatonBuilder.buildInterpolantAutomaton(McrAutomatonBuilder.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpAbStrategyModuleMcr.buildInterpolantAutomaton(IpAbStrategyModuleMcr.java:47) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:360) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-21 23:42:51,944 INFO L168 Benchmark]: Toolchain (without parser) took 9196.95 ms. Allocated memory was 140.0 MB in the beginning and 321.4 MB in the end (delta: 181.4 MB). Free memory was 100.8 MB in the beginning and 188.2 MB in the end (delta: -87.4 MB). Peak memory consumption was 94.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:42:51,945 INFO L168 Benchmark]: CDTParser took 2.99 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 23:42:51,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.17 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 100.0 MB in the beginning and 131.1 MB in the end (delta: -31.1 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2020-10-21 23:42:51,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.59 ms. Allocated memory is still 201.3 MB. Free memory was 131.1 MB in the beginning and 127.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-10-21 23:42:51,948 INFO L168 Benchmark]: Boogie Preprocessor took 35.41 ms. Allocated memory is still 201.3 MB. Free memory was 127.8 MB in the beginning and 125.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:42:51,948 INFO L168 Benchmark]: RCFGBuilder took 812.18 ms. Allocated memory is still 201.3 MB. Free memory was 125.8 MB in the beginning and 91.5 MB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. [2020-10-21 23:42:51,949 INFO L168 Benchmark]: TraceAbstraction took 7491.38 ms. Allocated memory was 201.3 MB in the beginning and 321.4 MB in the end (delta: 120.1 MB). Free memory was 90.9 MB in the beginning and 188.2 MB in the end (delta: -97.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-21 23:42:51,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.99 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 790.17 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 100.0 MB in the beginning and 131.1 MB in the end (delta: -31.1 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.59 ms. Allocated memory is still 201.3 MB. Free memory was 131.1 MB in the beginning and 127.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.41 ms. Allocated memory is still 201.3 MB. Free memory was 127.8 MB in the beginning and 125.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 812.18 ms. Allocated memory is still 201.3 MB. Free memory was 125.8 MB in the beginning and 91.5 MB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7491.38 ms. Allocated memory was 201.3 MB in the beginning and 321.4 MB in the end (delta: 120.1 MB). Free memory was 90.9 MB in the beginning and 188.2 MB in the end (delta: -97.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3872 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 199 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.1s, 145 PlacesBefore, 40 PlacesAfterwards, 152 TransitionsBefore, 40 TransitionsAfterwards, 6874 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 87 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 7 ChoiceCompositions, 149 TotalNumberOfCompositions, 12236 MoverChecksTotal - ExceptionOrErrorResult: SMTLIBException: line 59321 column 29: unknown constant v_#memory_int_56 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 59321 column 29: unknown constant v_#memory_int_56: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1454) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...