/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread/stack_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:41:06,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:41:06,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:41:06,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:41:06,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:41:06,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:41:06,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:41:06,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:41:06,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:41:06,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:41:06,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:41:06,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:41:06,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:41:06,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:41:06,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:41:06,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:41:06,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:41:06,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:41:06,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:41:06,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:41:06,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:41:06,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:41:06,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:41:06,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:41:06,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:41:06,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:41:06,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:41:06,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:41:06,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:41:06,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:41:06,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:41:06,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:41:06,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:41:06,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:41:06,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:41:06,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:41:06,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:41:06,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:41:06,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:41:06,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:41:06,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:41:06,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 11:41:06,286 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:41:06,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:41:06,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:41:06,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:41:06,288 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:41:06,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:41:06,289 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:41:06,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:41:06,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:41:06,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:41:06,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:41:06,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:41:06,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:41:06,290 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:41:06,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:41:06,290 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:41:06,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:41:06,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:41:06,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:41:06,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:41:06,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:41:06,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:41:06,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:41:06,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 11:41:06,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:41:06,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:41:06,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:41:06,293 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 11:41:06,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:41:06,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:41:06,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:41:06,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:41:06,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:41:06,652 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:41:06,652 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-1.i [2020-10-16 11:41:06,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dcbc17d9a/0165542f7bb448d4abd857c564a37691/FLAG8f9023a3b [2020-10-16 11:41:07,366 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:41:07,366 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/stack_longest-1.i [2020-10-16 11:41:07,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dcbc17d9a/0165542f7bb448d4abd857c564a37691/FLAG8f9023a3b [2020-10-16 11:41:07,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dcbc17d9a/0165542f7bb448d4abd857c564a37691 [2020-10-16 11:41:07,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:41:07,633 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:41:07,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:41:07,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:41:07,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:41:07,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:41:07" (1/1) ... [2020-10-16 11:41:07,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d61f71a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:07, skipping insertion in model container [2020-10-16 11:41:07,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:41:07" (1/1) ... [2020-10-16 11:41:07,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:41:07,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:41:08,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:41:08,338 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:41:08,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:41:08,563 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:41:08,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:08 WrapperNode [2020-10-16 11:41:08,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:41:08,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:41:08,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:41:08,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:41:08,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:08" (1/1) ... [2020-10-16 11:41:08,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:08" (1/1) ... [2020-10-16 11:41:08,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:41:08,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:41:08,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:41:08,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:41:08,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:08" (1/1) ... [2020-10-16 11:41:08,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:08" (1/1) ... [2020-10-16 11:41:08,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:08" (1/1) ... [2020-10-16 11:41:08,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:08" (1/1) ... [2020-10-16 11:41:08,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:08" (1/1) ... [2020-10-16 11:41:08,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:08" (1/1) ... [2020-10-16 11:41:08,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:08" (1/1) ... [2020-10-16 11:41:08,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:41:08,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:41:08,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:41:08,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:41:08,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:41:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-16 11:41:08,773 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-16 11:41:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-16 11:41:08,774 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-16 11:41:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:41:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:41:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 11:41:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:41:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 11:41:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 11:41:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:41:08,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:41:08,778 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:41:09,354 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:41:09,355 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-16 11:41:09,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:41:09 BoogieIcfgContainer [2020-10-16 11:41:09,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:41:09,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:41:09,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:41:09,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:41:09,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:41:07" (1/3) ... [2020-10-16 11:41:09,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b320185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:41:09, skipping insertion in model container [2020-10-16 11:41:09,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:08" (2/3) ... [2020-10-16 11:41:09,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b320185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:41:09, skipping insertion in model container [2020-10-16 11:41:09,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:41:09" (3/3) ... [2020-10-16 11:41:09,370 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2020-10-16 11:41:09,386 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:41:09,387 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:41:09,398 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 11:41:09,399 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:41:09,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,443 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,443 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,443 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,444 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,444 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,444 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,446 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,446 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,446 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,447 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,451 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,452 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,452 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,456 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,456 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,461 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,461 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,461 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,463 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,463 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,463 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,464 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,464 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,464 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,464 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,465 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,465 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,465 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,466 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,467 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,467 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,468 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,468 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,468 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,468 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,469 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,469 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,469 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,470 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,470 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,470 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,471 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,471 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,471 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,471 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,472 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,472 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,473 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,473 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,473 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,473 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,473 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,474 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,474 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,474 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,474 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,475 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,475 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,475 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,475 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,507 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,507 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,507 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,508 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,508 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,509 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,509 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,509 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,509 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,509 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,510 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,510 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,510 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,510 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,510 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,510 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,510 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,511 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,512 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,513 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,513 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,513 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,513 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,513 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,514 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,514 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,517 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,525 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,526 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,526 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,526 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,527 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,527 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,527 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,528 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,528 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,529 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,529 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,529 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,529 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,541 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,541 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,542 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,542 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,542 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,542 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,542 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,543 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,543 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,546 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,546 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,546 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,546 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,547 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,547 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,547 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,547 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,547 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,548 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:09,557 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 11:41:09,575 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 11:41:09,596 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:41:09,596 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:41:09,596 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:41:09,596 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:41:09,596 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:41:09,597 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:41:09,597 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:41:09,597 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:41:09,614 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:41:09,614 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 145 transitions, 312 flow [2020-10-16 11:41:09,617 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 145 transitions, 312 flow [2020-10-16 11:41:09,618 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-10-16 11:41:09,709 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-10-16 11:41:09,710 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 11:41:09,720 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 385 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-16 11:41:09,728 INFO L117 LiptonReduction]: Number of co-enabled transitions 6532 [2020-10-16 11:41:12,309 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-16 11:41:12,883 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-16 11:41:13,082 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-16 11:41:13,096 INFO L132 LiptonReduction]: Checked pairs total: 10155 [2020-10-16 11:41:13,097 INFO L134 LiptonReduction]: Total number of compositions: 127 [2020-10-16 11:41:13,105 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 104 flow [2020-10-16 11:41:13,134 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 360 states. [2020-10-16 11:41:13,136 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-10-16 11:41:13,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 11:41:13,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:13,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 11:41:13,145 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:13,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:13,152 INFO L82 PathProgramCache]: Analyzing trace with hash 475986746, now seen corresponding path program 1 times [2020-10-16 11:41:13,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:13,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595099819] [2020-10-16 11:41:13,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:13,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595099819] [2020-10-16 11:41:13,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:13,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:41:13,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876492386] [2020-10-16 11:41:13,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:13,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:13,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:13,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:13,535 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 3 states. [2020-10-16 11:41:13,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:13,625 INFO L93 Difference]: Finished difference Result 652 states and 1665 transitions. [2020-10-16 11:41:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:13,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 11:41:13,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:13,654 INFO L225 Difference]: With dead ends: 652 [2020-10-16 11:41:13,654 INFO L226 Difference]: Without dead ends: 630 [2020-10-16 11:41:13,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:13,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-10-16 11:41:13,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 462. [2020-10-16 11:41:13,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-10-16 11:41:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 1240 transitions. [2020-10-16 11:41:13,770 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 1240 transitions. Word has length 6 [2020-10-16 11:41:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:13,774 INFO L481 AbstractCegarLoop]: Abstraction has 462 states and 1240 transitions. [2020-10-16 11:41:13,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:13,774 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 1240 transitions. [2020-10-16 11:41:13,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:41:13,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:13,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:13,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:41:13,777 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:13,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:13,781 INFO L82 PathProgramCache]: Analyzing trace with hash 929097400, now seen corresponding path program 1 times [2020-10-16 11:41:13,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:13,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720219376] [2020-10-16 11:41:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:13,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720219376] [2020-10-16 11:41:13,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:13,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:41:13,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800895601] [2020-10-16 11:41:13,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:13,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:13,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:13,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:13,893 INFO L87 Difference]: Start difference. First operand 462 states and 1240 transitions. Second operand 3 states. [2020-10-16 11:41:13,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:13,912 INFO L93 Difference]: Finished difference Result 561 states and 1452 transitions. [2020-10-16 11:41:13,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:13,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 11:41:13,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:13,918 INFO L225 Difference]: With dead ends: 561 [2020-10-16 11:41:13,918 INFO L226 Difference]: Without dead ends: 539 [2020-10-16 11:41:13,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:13,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-16 11:41:13,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 499. [2020-10-16 11:41:13,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-10-16 11:41:13,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 1332 transitions. [2020-10-16 11:41:13,955 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 1332 transitions. Word has length 9 [2020-10-16 11:41:13,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:13,956 INFO L481 AbstractCegarLoop]: Abstraction has 499 states and 1332 transitions. [2020-10-16 11:41:13,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:13,957 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 1332 transitions. [2020-10-16 11:41:13,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:41:13,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:13,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:13,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:41:13,958 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:13,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:13,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1857688102, now seen corresponding path program 1 times [2020-10-16 11:41:13,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:13,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186701439] [2020-10-16 11:41:13,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:14,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:14,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186701439] [2020-10-16 11:41:14,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:14,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:41:14,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685202489] [2020-10-16 11:41:14,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:14,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:14,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:14,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:14,027 INFO L87 Difference]: Start difference. First operand 499 states and 1332 transitions. Second operand 3 states. [2020-10-16 11:41:14,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:14,052 INFO L93 Difference]: Finished difference Result 539 states and 1435 transitions. [2020-10-16 11:41:14,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:14,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 11:41:14,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:14,057 INFO L225 Difference]: With dead ends: 539 [2020-10-16 11:41:14,058 INFO L226 Difference]: Without dead ends: 539 [2020-10-16 11:41:14,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:14,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-16 11:41:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-16 11:41:14,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-16 11:41:14,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1435 transitions. [2020-10-16 11:41:14,084 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1435 transitions. Word has length 10 [2020-10-16 11:41:14,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:14,084 INFO L481 AbstractCegarLoop]: Abstraction has 539 states and 1435 transitions. [2020-10-16 11:41:14,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:14,085 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1435 transitions. [2020-10-16 11:41:14,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:41:14,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:14,087 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:14,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:41:14,087 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:14,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:14,088 INFO L82 PathProgramCache]: Analyzing trace with hash -2118228877, now seen corresponding path program 1 times [2020-10-16 11:41:14,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:14,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084065935] [2020-10-16 11:41:14,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:14,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:14,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084065935] [2020-10-16 11:41:14,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808024073] [2020-10-16 11:41:14,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 11:41:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:14,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-16 11:41:14,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 11:41:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:14,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 11:41:14,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-16 11:41:14,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841962532] [2020-10-16 11:41:14,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 11:41:14,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:14,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 11:41:14,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:41:14,304 INFO L87 Difference]: Start difference. First operand 539 states and 1435 transitions. Second operand 7 states. [2020-10-16 11:41:14,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:14,402 INFO L93 Difference]: Finished difference Result 1015 states and 2609 transitions. [2020-10-16 11:41:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:41:14,403 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-16 11:41:14,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:14,410 INFO L225 Difference]: With dead ends: 1015 [2020-10-16 11:41:14,410 INFO L226 Difference]: Without dead ends: 1015 [2020-10-16 11:41:14,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:41:14,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2020-10-16 11:41:14,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 739. [2020-10-16 11:41:14,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-10-16 11:41:14,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1976 transitions. [2020-10-16 11:41:14,437 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1976 transitions. Word has length 14 [2020-10-16 11:41:14,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:14,437 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 1976 transitions. [2020-10-16 11:41:14,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 11:41:14,437 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1976 transitions. [2020-10-16 11:41:14,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:41:14,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:14,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:14,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 11:41:14,655 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:14,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:14,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1012308327, now seen corresponding path program 1 times [2020-10-16 11:41:14,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:14,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974654021] [2020-10-16 11:41:14,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:14,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974654021] [2020-10-16 11:41:14,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:14,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:41:14,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18044848] [2020-10-16 11:41:14,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:41:14,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:14,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:41:14,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:41:14,752 INFO L87 Difference]: Start difference. First operand 739 states and 1976 transitions. Second operand 4 states. [2020-10-16 11:41:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:14,814 INFO L93 Difference]: Finished difference Result 354 states and 799 transitions. [2020-10-16 11:41:14,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:41:14,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 11:41:14,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:14,818 INFO L225 Difference]: With dead ends: 354 [2020-10-16 11:41:14,818 INFO L226 Difference]: Without dead ends: 354 [2020-10-16 11:41:14,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:41:14,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-10-16 11:41:14,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 328. [2020-10-16 11:41:14,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-10-16 11:41:14,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 732 transitions. [2020-10-16 11:41:14,830 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 732 transitions. Word has length 17 [2020-10-16 11:41:14,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:14,831 INFO L481 AbstractCegarLoop]: Abstraction has 328 states and 732 transitions. [2020-10-16 11:41:14,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:41:14,831 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 732 transitions. [2020-10-16 11:41:14,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:41:14,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:14,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:14,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:41:14,842 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:14,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:14,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1241376286, now seen corresponding path program 1 times [2020-10-16 11:41:14,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:14,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847169608] [2020-10-16 11:41:14,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:14,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:14,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847169608] [2020-10-16 11:41:14,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:14,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:41:14,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300325576] [2020-10-16 11:41:14,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:41:14,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:14,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:41:14,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:41:14,989 INFO L87 Difference]: Start difference. First operand 328 states and 732 transitions. Second operand 5 states. [2020-10-16 11:41:15,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:15,075 INFO L93 Difference]: Finished difference Result 500 states and 1111 transitions. [2020-10-16 11:41:15,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:41:15,075 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 11:41:15,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:15,079 INFO L225 Difference]: With dead ends: 500 [2020-10-16 11:41:15,079 INFO L226 Difference]: Without dead ends: 500 [2020-10-16 11:41:15,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:41:15,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-10-16 11:41:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 373. [2020-10-16 11:41:15,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-10-16 11:41:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 837 transitions. [2020-10-16 11:41:15,092 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 837 transitions. Word has length 18 [2020-10-16 11:41:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:15,092 INFO L481 AbstractCegarLoop]: Abstraction has 373 states and 837 transitions. [2020-10-16 11:41:15,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:41:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 837 transitions. [2020-10-16 11:41:15,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 11:41:15,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:15,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:15,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:41:15,095 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:15,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:15,095 INFO L82 PathProgramCache]: Analyzing trace with hash 624388862, now seen corresponding path program 1 times [2020-10-16 11:41:15,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:15,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246841546] [2020-10-16 11:41:15,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:15,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:15,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246841546] [2020-10-16 11:41:15,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:15,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 11:41:15,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291110019] [2020-10-16 11:41:15,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 11:41:15,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:15,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 11:41:15,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-16 11:41:15,605 INFO L87 Difference]: Start difference. First operand 373 states and 837 transitions. Second operand 10 states. [2020-10-16 11:41:16,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:16,242 INFO L93 Difference]: Finished difference Result 698 states and 1547 transitions. [2020-10-16 11:41:16,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 11:41:16,243 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-16 11:41:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:16,248 INFO L225 Difference]: With dead ends: 698 [2020-10-16 11:41:16,248 INFO L226 Difference]: Without dead ends: 698 [2020-10-16 11:41:16,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-10-16 11:41:16,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2020-10-16 11:41:16,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 524. [2020-10-16 11:41:16,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-16 11:41:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1213 transitions. [2020-10-16 11:41:16,265 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1213 transitions. Word has length 22 [2020-10-16 11:41:16,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:16,265 INFO L481 AbstractCegarLoop]: Abstraction has 524 states and 1213 transitions. [2020-10-16 11:41:16,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 11:41:16,265 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1213 transitions. [2020-10-16 11:41:16,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 11:41:16,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:16,267 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-16 11:41:16,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:41:16,267 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:16,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:16,268 INFO L82 PathProgramCache]: Analyzing trace with hash 752977068, now seen corresponding path program 2 times [2020-10-16 11:41:16,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:16,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753845524] [2020-10-16 11:41:16,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:16,338 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:16,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753845524] [2020-10-16 11:41:16,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122726128] [2020-10-16 11:41:16,339 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 11:41:16,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 11:41:16,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 11:41:16,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 11:41:16,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 11:41:16,448 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:16,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 11:41:16,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-16 11:41:16,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764818857] [2020-10-16 11:41:16,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 11:41:16,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:16,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 11:41:16,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:41:16,450 INFO L87 Difference]: Start difference. First operand 524 states and 1213 transitions. Second operand 9 states. [2020-10-16 11:41:16,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:16,536 INFO L93 Difference]: Finished difference Result 866 states and 1943 transitions. [2020-10-16 11:41:16,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:41:16,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 11:41:16,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:16,542 INFO L225 Difference]: With dead ends: 866 [2020-10-16 11:41:16,542 INFO L226 Difference]: Without dead ends: 866 [2020-10-16 11:41:16,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-16 11:41:16,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-10-16 11:41:16,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 616. [2020-10-16 11:41:16,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2020-10-16 11:41:16,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 1417 transitions. [2020-10-16 11:41:16,564 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 1417 transitions. Word has length 22 [2020-10-16 11:41:16,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:16,564 INFO L481 AbstractCegarLoop]: Abstraction has 616 states and 1417 transitions. [2020-10-16 11:41:16,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 11:41:16,564 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 1417 transitions. [2020-10-16 11:41:16,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 11:41:16,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:16,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:16,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 11:41:16,771 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:16,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:16,772 INFO L82 PathProgramCache]: Analyzing trace with hash 434974922, now seen corresponding path program 2 times [2020-10-16 11:41:16,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:16,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047171352] [2020-10-16 11:41:16,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:17,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:17,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047171352] [2020-10-16 11:41:17,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:17,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 11:41:17,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695086689] [2020-10-16 11:41:17,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 11:41:17,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:17,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 11:41:17,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-16 11:41:17,145 INFO L87 Difference]: Start difference. First operand 616 states and 1417 transitions. Second operand 10 states. [2020-10-16 11:41:17,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:17,724 INFO L93 Difference]: Finished difference Result 931 states and 2095 transitions. [2020-10-16 11:41:17,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 11:41:17,725 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-16 11:41:17,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:17,731 INFO L225 Difference]: With dead ends: 931 [2020-10-16 11:41:17,731 INFO L226 Difference]: Without dead ends: 931 [2020-10-16 11:41:17,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-16 11:41:17,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2020-10-16 11:41:17,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 602. [2020-10-16 11:41:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2020-10-16 11:41:17,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1380 transitions. [2020-10-16 11:41:17,752 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1380 transitions. Word has length 22 [2020-10-16 11:41:17,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:17,755 INFO L481 AbstractCegarLoop]: Abstraction has 602 states and 1380 transitions. [2020-10-16 11:41:17,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 11:41:17,755 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1380 transitions. [2020-10-16 11:41:17,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 11:41:17,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:17,757 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:17,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 11:41:17,757 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:17,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:17,758 INFO L82 PathProgramCache]: Analyzing trace with hash -333091595, now seen corresponding path program 1 times [2020-10-16 11:41:17,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:17,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313944691] [2020-10-16 11:41:17,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:17,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:17,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313944691] [2020-10-16 11:41:17,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197104814] [2020-10-16 11:41:17,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 11:41:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:17,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 11:41:17,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 11:41:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 11:41:17,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-16 11:41:17,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2020-10-16 11:41:17,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202058547] [2020-10-16 11:41:17,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:41:17,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:17,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:41:17,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:41:17,972 INFO L87 Difference]: Start difference. First operand 602 states and 1380 transitions. Second operand 6 states. [2020-10-16 11:41:18,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:18,052 INFO L93 Difference]: Finished difference Result 834 states and 1865 transitions. [2020-10-16 11:41:18,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:41:18,053 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-16 11:41:18,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:18,058 INFO L225 Difference]: With dead ends: 834 [2020-10-16 11:41:18,059 INFO L226 Difference]: Without dead ends: 834 [2020-10-16 11:41:18,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-16 11:41:18,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-10-16 11:41:18,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 630. [2020-10-16 11:41:18,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2020-10-16 11:41:18,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 1456 transitions. [2020-10-16 11:41:18,079 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 1456 transitions. Word has length 25 [2020-10-16 11:41:18,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:18,079 INFO L481 AbstractCegarLoop]: Abstraction has 630 states and 1456 transitions. [2020-10-16 11:41:18,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:41:18,079 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 1456 transitions. [2020-10-16 11:41:18,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 11:41:18,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:18,081 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:18,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-16 11:41:18,294 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:18,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:18,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1736562886, now seen corresponding path program 1 times [2020-10-16 11:41:18,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:18,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121977895] [2020-10-16 11:41:18,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:41:18,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:41:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:41:18,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:41:18,384 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 11:41:18,384 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 11:41:18,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 11:41:18,386 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 11:41:18,386 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 11:41:18,386 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 11:41:18,393 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [557] [557] L3-->L977-1: Formula: (and (not (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out-1200795100 0)) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out-1200795100| |~#arr~0.base_In-1200795100|) (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_In-1200795100| t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out-1200795100) (let ((.cse1 (mod t1Thread1of1ForFork0_~tmp~0_In-1200795100 4294967296))) (let ((.cse0 (<= .cse1 2147483647))) (or (and .cse0 (= |t1Thread1of1ForFork0_push_#in~x_Out-1200795100| .cse1)) (and (not .cse0) (= (+ .cse1 (- 4294967296)) |t1Thread1of1ForFork0_push_#in~x_Out-1200795100|))))) (= |~#arr~0.offset_In-1200795100| |t1Thread1of1ForFork0_push_#in~stack.offset_Out-1200795100|)) InVars {~#arr~0.offset=|~#arr~0.offset_In-1200795100|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In-1200795100, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_In-1200795100|, ~#arr~0.base=|~#arr~0.base_In-1200795100|} OutVars{~#arr~0.offset=|~#arr~0.offset_In-1200795100|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out-1200795100|, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out-1200795100, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out-1200795100|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In-1200795100, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out-1200795100|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_In-1200795100|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out-1200795100|, ~#arr~0.base=|~#arr~0.base_In-1200795100|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#in~stack.offset] because there is no mapped edge [2020-10-16 11:41:18,398 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [558] [558] L977-2-->L980: Formula: (and (<= |t1Thread1of1ForFork0_#t~ret44_In5901260| 2147483647) (<= 0 (+ |t1Thread1of1ForFork0_#t~ret44_In5901260| 2147483648)) (= ~flag~0_Out5901260 1) (not (= (- 1) |t1Thread1of1ForFork0_#t~ret44_In5901260|))) InVars {t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_In5901260|} OutVars{t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_Out5901260|, ~flag~0=~flag~0_Out5901260} AuxVars[] AssignedVars[t1Thread1of1ForFork0_#t~ret44, ~flag~0] because there is no mapped edge [2020-10-16 11:41:18,403 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [569] [569] L992-4-->L987-6: Formula: (and (not (= |t2Thread1of1ForFork1_#t~ret47_In1345233928| (- 2))) (= (store |#pthreadsMutex_In1345233928| |~#m~0.base_In1345233928| (store (select |#pthreadsMutex_In1345233928| |~#m~0.base_In1345233928|) |~#m~0.offset_In1345233928| 0)) |#pthreadsMutex_Out1345233928|) (= (+ t2Thread1of1ForFork1_~i~1_Out1345233928 (- 1)) t2Thread1of1ForFork1_~i~1_In1345233928)) InVars {#pthreadsMutex=|#pthreadsMutex_In1345233928|, ~#m~0.base=|~#m~0.base_In1345233928|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_In1345233928|, ~#m~0.offset=|~#m~0.offset_In1345233928|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In1345233928} OutVars{#pthreadsMutex=|#pthreadsMutex_Out1345233928|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_Out1345233928|, ~#m~0.base=|~#m~0.base_In1345233928|, ~#m~0.offset=|~#m~0.offset_In1345233928|, t2Thread1of1ForFork1_#t~post45=|t2Thread1of1ForFork1_#t~post45_Out1345233928|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out1345233928} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_#t~ret47, t2Thread1of1ForFork1_#t~post45, t2Thread1of1ForFork1_~i~1] because there is no mapped edge [2020-10-16 11:41:18,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:41:18 BasicIcfg [2020-10-16 11:41:18,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:41:18,457 INFO L168 Benchmark]: Toolchain (without parser) took 10825.12 ms. Allocated memory was 142.6 MB in the beginning and 353.4 MB in the end (delta: 210.8 MB). Free memory was 97.0 MB in the beginning and 224.2 MB in the end (delta: -127.1 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:18,458 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 142.6 MB. Free memory was 117.1 MB in the beginning and 116.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 11:41:18,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 931.30 ms. Allocated memory was 142.6 MB in the beginning and 199.8 MB in the end (delta: 57.1 MB). Free memory was 96.8 MB in the beginning and 130.2 MB in the end (delta: -33.4 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:18,460 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.89 ms. Allocated memory is still 199.8 MB. Free memory was 130.2 MB in the beginning and 127.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:18,461 INFO L168 Benchmark]: Boogie Preprocessor took 64.74 ms. Allocated memory is still 199.8 MB. Free memory was 127.4 MB in the beginning and 126.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:18,461 INFO L168 Benchmark]: RCFGBuilder took 655.87 ms. Allocated memory is still 199.8 MB. Free memory was 126.0 MB in the beginning and 92.2 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:18,462 INFO L168 Benchmark]: TraceAbstraction took 9095.00 ms. Allocated memory was 199.8 MB in the beginning and 353.4 MB in the end (delta: 153.6 MB). Free memory was 92.2 MB in the beginning and 224.2 MB in the end (delta: -131.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:18,466 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 142.6 MB. Free memory was 117.1 MB in the beginning and 116.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 931.30 ms. Allocated memory was 142.6 MB in the beginning and 199.8 MB in the end (delta: 57.1 MB). Free memory was 96.8 MB in the beginning and 130.2 MB in the end (delta: -33.4 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 69.89 ms. Allocated memory is still 199.8 MB. Free memory was 130.2 MB in the beginning and 127.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.74 ms. Allocated memory is still 199.8 MB. Free memory was 127.4 MB in the beginning and 126.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 655.87 ms. Allocated memory is still 199.8 MB. Free memory was 126.0 MB in the beginning and 92.2 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9095.00 ms. Allocated memory was 199.8 MB in the beginning and 353.4 MB in the end (delta: 153.6 MB). Free memory was 92.2 MB in the beginning and 224.2 MB in the end (delta: -131.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3748 VarBasedMoverChecksPositive, 51 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 250 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.4s, 140 PlacesBefore, 41 PlacesAfterwards, 145 TransitionsBefore, 41 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 5 ChoiceCompositions, 127 TotalNumberOfCompositions, 10155 MoverChecksTotal - CounterExampleResult [Line: 922]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; [L917] 0 static unsigned int arr[(800)]; [L918] 0 pthread_mutex_t m; [L919] 0 _Bool flag=(0); [L1001] 0 pthread_t id1, id2; [L1003] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={9:0}, flag=0, m={3:0}, top=0] [L970] 1 int i; [L971] 1 unsigned int tmp; [L972] 1 i=0 VAL [arr={9:0}, flag=0, m={3:0}, top=0] [L972] COND TRUE 1 i<(800) [L975] 1 tmp = __VERIFIER_nondet_uint() [L942] COND FALSE 1 !(top==(800)) [L1004] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={9:0}, flag=0, m={3:0}, top=0] [L986] 2 int i; [L987] 2 i=0 VAL [arr={9:0}, flag=0, m={3:0}, top=0] [L934] 1 return top; [L949] 1 stack[get_top()] = x [L926] 1 top++ [L952] 1 return 0; [L972] 1 i++ VAL [arr={9:0}, flag=1, m={3:0}, top=1] [L987] COND TRUE 2 i<(800) [L990] COND TRUE 2 \read(flag) [L934] 2 return top; [L956] COND FALSE 2 !(get_top()==0) [L930] 2 top-- [L934] 2 return top; VAL [arr={9:0}, flag=1, m={3:0}, top=0] [L964] EXPR 2 stack[get_top()] [L964] 2 return stack[get_top()]; [L987] COND TRUE 2 i<(800) [L990] COND TRUE 2 \read(flag) [L934] 2 return top; [L956] COND TRUE 2 get_top()==0 [L959] 2 return (-2); [L992] COND TRUE 2 !(pop(arr)!=(-2)) [L922] 2 __VERIFIER_error() VAL [arr={9:0}, flag=1, m={3:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.7s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 470 SDtfs, 688 SDslu, 1141 SDs, 0 SdLazy, 627 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=739occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 1594 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 35176 SizeOfPredicates, 9 NumberOfNonLiveVariables, 517 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 10/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...