/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 02:07:30,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 02:07:30,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 02:07:30,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 02:07:30,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 02:07:30,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 02:07:30,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 02:07:30,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 02:07:30,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 02:07:30,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 02:07:30,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 02:07:30,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 02:07:30,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 02:07:30,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 02:07:30,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 02:07:30,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 02:07:30,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 02:07:30,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 02:07:30,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 02:07:30,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 02:07:30,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 02:07:30,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 02:07:30,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 02:07:30,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 02:07:30,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 02:07:30,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 02:07:30,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 02:07:30,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 02:07:30,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 02:07:30,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 02:07:30,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 02:07:30,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 02:07:30,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 02:07:30,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 02:07:30,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 02:07:30,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 02:07:30,300 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-17 02:07:30,345 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 02:07:30,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 02:07:30,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 02:07:30,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 02:07:30,348 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 02:07:30,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 02:07:30,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 02:07:30,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 02:07:30,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 02:07:30,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 02:07:30,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 02:07:30,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 02:07:30,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 02:07:30,351 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 02:07:30,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 02:07:30,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 02:07:30,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 02:07:30,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 02:07:30,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 02:07:30,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 02:07:30,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 02:07:30,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 02:07:30,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 02:07:30,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 02:07:30,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 02:07:30,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 02:07:30,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 02:07:30,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 02:07:30,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 02:07:30,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 02:07:30,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 02:07:30,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 02:07:30,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 02:07:30,843 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 02:07:30,844 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 02:07:30,845 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c [2020-09-17 02:07:30,920 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd56956ec/5675d00b55204054939a26b5241d57cb/FLAG60a0fed04 [2020-09-17 02:07:31,512 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 02:07:31,514 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c [2020-09-17 02:07:31,514 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-09-17 02:07:31,514 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2020-09-17 02:07:31,514 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-09-17 02:07:31,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd56956ec/5675d00b55204054939a26b5241d57cb/FLAG60a0fed04 [2020-09-17 02:07:31,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd56956ec/5675d00b55204054939a26b5241d57cb [2020-09-17 02:07:31,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 02:07:31,786 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 02:07:31,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 02:07:31,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 02:07:31,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 02:07:31,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 02:07:31" (1/1) ... [2020-09-17 02:07:31,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23fce986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:31, skipping insertion in model container [2020-09-17 02:07:31,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 02:07:31" (1/1) ... [2020-09-17 02:07:31,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 02:07:31,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 02:07:32,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 02:07:32,055 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 02:07:32,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 02:07:32,180 INFO L208 MainTranslator]: Completed translation [2020-09-17 02:07:32,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:32 WrapperNode [2020-09-17 02:07:32,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 02:07:32,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 02:07:32,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 02:07:32,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 02:07:32,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:32" (1/1) ... [2020-09-17 02:07:32,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:32" (1/1) ... [2020-09-17 02:07:32,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 02:07:32,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 02:07:32,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 02:07:32,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 02:07:32,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:32" (1/1) ... [2020-09-17 02:07:32,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:32" (1/1) ... [2020-09-17 02:07:32,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:32" (1/1) ... [2020-09-17 02:07:32,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:32" (1/1) ... [2020-09-17 02:07:32,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:32" (1/1) ... [2020-09-17 02:07:32,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:32" (1/1) ... [2020-09-17 02:07:32,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:32" (1/1) ... [2020-09-17 02:07:32,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 02:07:32,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 02:07:32,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 02:07:32,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 02:07:32,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 02:07:32,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 02:07:32,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 02:07:32,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 02:07:32,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-17 02:07:32,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 02:07:32,329 INFO L130 BoogieDeclarations]: Found specification of procedure myThread [2020-09-17 02:07:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure myThread [2020-09-17 02:07:32,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 02:07:32,332 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 02:07:32,631 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 02:07:32,631 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-17 02:07:32,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 02:07:32 BoogieIcfgContainer [2020-09-17 02:07:32,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 02:07:32,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 02:07:32,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 02:07:32,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 02:07:32,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 02:07:31" (1/3) ... [2020-09-17 02:07:32,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d86d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 02:07:32, skipping insertion in model container [2020-09-17 02:07:32,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:07:32" (2/3) ... [2020-09-17 02:07:32,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d86d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 02:07:32, skipping insertion in model container [2020-09-17 02:07:32,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 02:07:32" (3/3) ... [2020-09-17 02:07:32,649 INFO L109 eAbstractionObserver]: Analyzing ICFG globalVariableMultipleThreads.c [2020-09-17 02:07:32,663 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 02:07:32,663 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 02:07:32,674 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 02:07:32,675 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 02:07:32,715 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,715 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,715 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,715 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,716 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,716 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,716 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,716 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,717 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,717 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,718 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,718 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,718 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,719 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,719 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,719 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,719 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,720 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,720 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,720 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,721 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,728 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,728 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,729 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,729 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,729 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,740 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,741 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,741 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,741 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,741 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,741 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,741 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:32,783 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-17 02:07:32,808 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 02:07:32,808 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 02:07:32,808 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 02:07:32,808 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 02:07:32,808 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 02:07:32,809 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 02:07:32,809 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 02:07:32,809 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 02:07:32,826 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 56 transitions, 120 flow [2020-09-17 02:07:32,828 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 120 flow [2020-09-17 02:07:32,879 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-09-17 02:07:32,879 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2020-09-17 02:07:32,886 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 64 events. 2/64 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 34. Up to 4 conditions per place. [2020-09-17 02:07:32,890 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 120 flow [2020-09-17 02:07:32,916 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-09-17 02:07:32,917 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2020-09-17 02:07:32,918 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 64 events. 2/64 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 34. Up to 4 conditions per place. [2020-09-17 02:07:32,920 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 600 [2020-09-17 02:07:32,924 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 02:07:34,012 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-09-17 02:07:34,247 INFO L206 etLargeBlockEncoding]: Checked pairs total: 475 [2020-09-17 02:07:34,247 INFO L214 etLargeBlockEncoding]: Total number of compositions: 51 [2020-09-17 02:07:34,252 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2020-09-17 02:07:34,264 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-09-17 02:07:34,266 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-09-17 02:07:34,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-17 02:07:34,275 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 02:07:34,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-17 02:07:34,277 INFO L427 AbstractCegarLoop]: === Iteration 1 === [myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-17 02:07:34,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 02:07:34,284 INFO L82 PathProgramCache]: Analyzing trace with hash 6727753, now seen corresponding path program 1 times [2020-09-17 02:07:34,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 02:07:34,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741323935] [2020-09-17 02:07:34,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 02:07:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 02:07:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 02:07:34,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741323935] [2020-09-17 02:07:34,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 02:07:34,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 02:07:34,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341747534] [2020-09-17 02:07:34,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 02:07:34,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 02:07:34,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 02:07:34,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 02:07:34,533 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-09-17 02:07:34,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 02:07:34,558 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2020-09-17 02:07:34,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 02:07:34,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-17 02:07:34,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 02:07:34,573 INFO L225 Difference]: With dead ends: 16 [2020-09-17 02:07:34,573 INFO L226 Difference]: Without dead ends: 11 [2020-09-17 02:07:34,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 02:07:34,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-09-17 02:07:34,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-09-17 02:07:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-09-17 02:07:34,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-09-17 02:07:34,615 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-09-17 02:07:34,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 02:07:34,616 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-09-17 02:07:34,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 02:07:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-09-17 02:07:34,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-17 02:07:34,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 02:07:34,617 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-09-17 02:07:34,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 02:07:34,618 INFO L427 AbstractCegarLoop]: === Iteration 2 === [myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-17 02:07:34,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 02:07:34,619 INFO L82 PathProgramCache]: Analyzing trace with hash -2124565089, now seen corresponding path program 1 times [2020-09-17 02:07:34,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 02:07:34,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271871965] [2020-09-17 02:07:34,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 02:07:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 02:07:34,650 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 02:07:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 02:07:34,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 02:07:34,702 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-17 02:07:34,702 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-17 02:07:34,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 02:07:34,705 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-17 02:07:34,705 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-09-17 02:07:34,718 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,718 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,718 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,718 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,719 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,719 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,719 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,719 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,720 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,720 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,720 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,721 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,721 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,721 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,721 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,721 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,722 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,722 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,722 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,723 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,723 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,724 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,724 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,724 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,724 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,724 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,725 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,725 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,725 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,725 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,726 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,726 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,726 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,726 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,727 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,727 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,727 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,727 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,727 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,728 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,728 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,728 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,729 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,729 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,729 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,730 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,730 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,730 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,730 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,731 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,731 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,731 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,731 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,732 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,738 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,739 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,739 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,739 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,739 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,740 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,740 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,740 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,740 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,741 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,741 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,741 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:34,746 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 02:07:34,746 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 02:07:34,747 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 02:07:34,747 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 02:07:34,747 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 02:07:34,747 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 02:07:34,747 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 02:07:34,747 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 02:07:34,748 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 02:07:34,751 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 174 flow [2020-09-17 02:07:34,752 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 174 flow [2020-09-17 02:07:34,786 INFO L129 PetriNetUnfolder]: 3/117 cut-off events. [2020-09-17 02:07:34,786 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2020-09-17 02:07:34,789 INFO L80 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 117 events. 3/117 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 198 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 66. Up to 6 conditions per place. [2020-09-17 02:07:34,794 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 174 flow [2020-09-17 02:07:34,835 INFO L129 PetriNetUnfolder]: 3/117 cut-off events. [2020-09-17 02:07:34,835 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2020-09-17 02:07:34,836 INFO L80 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 117 events. 3/117 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 198 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 66. Up to 6 conditions per place. [2020-09-17 02:07:34,839 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2760 [2020-09-17 02:07:34,840 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 02:07:35,912 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-09-17 02:07:36,150 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6323 [2020-09-17 02:07:36,150 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2020-09-17 02:07:36,151 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 34 transitions, 86 flow [2020-09-17 02:07:36,201 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1003 states. [2020-09-17 02:07:36,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states. [2020-09-17 02:07:36,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-17 02:07:36,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 02:07:36,204 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-09-17 02:07:36,205 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-17 02:07:36,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 02:07:36,205 INFO L82 PathProgramCache]: Analyzing trace with hash -597674599, now seen corresponding path program 1 times [2020-09-17 02:07:36,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 02:07:36,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780869239] [2020-09-17 02:07:36,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 02:07:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 02:07:36,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 02:07:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 02:07:36,305 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 02:07:36,319 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-17 02:07:36,319 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-17 02:07:36,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 02:07:36,323 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-17 02:07:36,324 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-09-17 02:07:36,338 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,338 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,338 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,338 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,339 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,339 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,339 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,343 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,344 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,344 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,345 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,345 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,346 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,346 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,346 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,346 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,346 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,347 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,352 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,353 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,353 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,353 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,354 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,355 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,355 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,355 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,355 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,356 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,356 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,356 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,356 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,356 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,356 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,357 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,357 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,357 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,357 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,357 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,358 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,358 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,358 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,358 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,359 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,359 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,360 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,360 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,360 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,360 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,360 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,360 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,361 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,361 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,361 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,361 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,361 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,362 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,363 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,363 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,363 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,363 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,364 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,364 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,364 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,365 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,365 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,365 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,365 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,365 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,366 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,366 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,366 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,366 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,366 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,366 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,367 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,370 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,370 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,371 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,371 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,371 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,371 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,371 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,371 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,371 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,372 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,372 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,372 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,374 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,374 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,374 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,374 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,374 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,375 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,375 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,375 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,375 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,375 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,376 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,376 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 02:07:36,379 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-17 02:07:36,380 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 02:07:36,380 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 02:07:36,380 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 02:07:36,380 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 02:07:36,380 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 02:07:36,380 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 02:07:36,380 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 02:07:36,380 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 02:07:36,383 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 100 transitions, 230 flow [2020-09-17 02:07:36,383 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 230 flow [2020-09-17 02:07:36,418 INFO L129 PetriNetUnfolder]: 4/179 cut-off events. [2020-09-17 02:07:36,418 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2020-09-17 02:07:36,420 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 179 events. 4/179 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 501 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2020-09-17 02:07:36,428 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 230 flow [2020-09-17 02:07:36,455 INFO L129 PetriNetUnfolder]: 4/179 cut-off events. [2020-09-17 02:07:36,455 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2020-09-17 02:07:36,457 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 179 events. 4/179 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 501 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2020-09-17 02:07:36,465 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5520 [2020-09-17 02:07:36,465 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 02:07:38,037 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-09-17 02:07:38,172 INFO L206 etLargeBlockEncoding]: Checked pairs total: 12937 [2020-09-17 02:07:38,172 INFO L214 etLargeBlockEncoding]: Total number of compositions: 60 [2020-09-17 02:07:38,172 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 47 transitions, 124 flow [2020-09-17 02:07:39,026 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12523 states. [2020-09-17 02:07:39,026 INFO L276 IsEmpty]: Start isEmpty. Operand 12523 states. [2020-09-17 02:07:39,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 02:07:39,030 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 02:07:39,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 02:07:39,031 INFO L427 AbstractCegarLoop]: === Iteration 1 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-17 02:07:39,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 02:07:39,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1337401756, now seen corresponding path program 1 times [2020-09-17 02:07:39,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 02:07:39,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960257783] [2020-09-17 02:07:39,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 02:07:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 02:07:39,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 02:07:39,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960257783] [2020-09-17 02:07:39,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 02:07:39,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 02:07:39,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162547322] [2020-09-17 02:07:39,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 02:07:39,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 02:07:39,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 02:07:39,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-17 02:07:39,142 INFO L87 Difference]: Start difference. First operand 12523 states. Second operand 5 states. [2020-09-17 02:07:39,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 02:07:39,556 INFO L93 Difference]: Finished difference Result 16053 states and 52167 transitions. [2020-09-17 02:07:39,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 02:07:39,557 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-17 02:07:39,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 02:07:39,784 INFO L225 Difference]: With dead ends: 16053 [2020-09-17 02:07:39,784 INFO L226 Difference]: Without dead ends: 15826 [2020-09-17 02:07:39,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-17 02:07:40,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15826 states. [2020-09-17 02:07:40,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15826 to 13894. [2020-09-17 02:07:40,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13894 states. [2020-09-17 02:07:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13894 states to 13894 states and 46691 transitions. [2020-09-17 02:07:40,683 INFO L78 Accepts]: Start accepts. Automaton has 13894 states and 46691 transitions. Word has length 13 [2020-09-17 02:07:40,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 02:07:40,684 INFO L479 AbstractCegarLoop]: Abstraction has 13894 states and 46691 transitions. [2020-09-17 02:07:40,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 02:07:40,684 INFO L276 IsEmpty]: Start isEmpty. Operand 13894 states and 46691 transitions. [2020-09-17 02:07:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 02:07:40,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 02:07:40,688 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-09-17 02:07:40,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 02:07:40,688 INFO L427 AbstractCegarLoop]: === Iteration 2 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-17 02:07:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 02:07:40,688 INFO L82 PathProgramCache]: Analyzing trace with hash 367304155, now seen corresponding path program 1 times [2020-09-17 02:07:40,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 02:07:40,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54111580] [2020-09-17 02:07:40,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 02:07:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 02:07:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 02:07:40,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54111580] [2020-09-17 02:07:40,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980622997] [2020-09-17 02:07:40,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 02:07:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 02:07:41,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2020-09-17 02:07:41,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 02:07:41,635 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2020-09-17 02:07:41,640 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,668 INFO L625 ElimStorePlain]: treesize reduction 31, result has 39.2 percent of original size [2020-09-17 02:07:41,677 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-09-17 02:07:41,677 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,683 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 02:07:41,690 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,691 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:26, output treesize:12 [2020-09-17 02:07:41,702 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-09-17 02:07:41,702 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,709 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 02:07:41,709 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,710 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-09-17 02:07:41,730 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-09-17 02:07:41,731 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,738 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 02:07:41,738 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,738 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2020-09-17 02:07:41,760 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2020-09-17 02:07:41,762 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,769 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 02:07:41,769 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,769 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2020-09-17 02:07:41,777 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-09-17 02:07:41,778 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,785 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 02:07:41,785 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,785 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-09-17 02:07:41,818 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2020-09-17 02:07:41,819 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,825 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 02:07:41,827 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-17 02:07:41,828 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-09-17 02:07:41,874 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-09-17 02:07:41,875 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-17 02:07:41,882 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 02:07:41,883 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-17 02:07:41,884 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2020-09-17 02:07:41,917 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 02:07:41,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 02:07:41,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2020-09-17 02:07:41,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945740945] [2020-09-17 02:07:41,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-17 02:07:41,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 02:07:41,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-17 02:07:41,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-17 02:07:41,919 INFO L87 Difference]: Start difference. First operand 13894 states and 46691 transitions. Second operand 12 states. [2020-09-17 02:07:42,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 02:07:42,259 INFO L93 Difference]: Finished difference Result 9897 states and 32288 transitions. [2020-09-17 02:07:42,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 02:07:42,260 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-09-17 02:07:42,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 02:07:42,306 INFO L225 Difference]: With dead ends: 9897 [2020-09-17 02:07:42,306 INFO L226 Difference]: Without dead ends: 9786 [2020-09-17 02:07:42,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-09-17 02:07:42,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9786 states. [2020-09-17 02:07:42,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9786 to 9786. [2020-09-17 02:07:42,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9786 states. [2020-09-17 02:07:42,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9786 states to 9786 states and 31881 transitions. [2020-09-17 02:07:42,730 INFO L78 Accepts]: Start accepts. Automaton has 9786 states and 31881 transitions. Word has length 15 [2020-09-17 02:07:42,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 02:07:42,731 INFO L479 AbstractCegarLoop]: Abstraction has 9786 states and 31881 transitions. [2020-09-17 02:07:42,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-17 02:07:42,732 INFO L276 IsEmpty]: Start isEmpty. Operand 9786 states and 31881 transitions. [2020-09-17 02:07:42,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 02:07:42,735 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 02:07:42,735 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 02:07:42,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 02:07:42,950 INFO L427 AbstractCegarLoop]: === Iteration 3 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-17 02:07:42,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 02:07:42,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1619689545, now seen corresponding path program 1 times [2020-09-17 02:07:42,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 02:07:42,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667845262] [2020-09-17 02:07:42,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 02:07:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 02:07:42,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 02:07:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 02:07:42,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 02:07:43,006 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-17 02:07:43,007 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-17 02:07:43,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 02:07:43,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 02:07:43 BasicIcfg [2020-09-17 02:07:43,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 02:07:43,072 INFO L168 Benchmark]: Toolchain (without parser) took 11289.36 ms. Allocated memory was 146.8 MB in the beginning and 470.3 MB in the end (delta: 323.5 MB). Free memory was 101.1 MB in the beginning and 301.4 MB in the end (delta: -200.3 MB). Peak memory consumption was 123.2 MB. Max. memory is 7.1 GB. [2020-09-17 02:07:43,073 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 02:07:43,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.39 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 100.4 MB in the beginning and 182.5 MB in the end (delta: -82.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. [2020-09-17 02:07:43,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.53 ms. Allocated memory is still 204.5 MB. Free memory was 182.5 MB in the beginning and 180.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-17 02:07:43,075 INFO L168 Benchmark]: Boogie Preprocessor took 25.86 ms. Allocated memory is still 204.5 MB. Free memory was 180.5 MB in the beginning and 178.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-09-17 02:07:43,076 INFO L168 Benchmark]: RCFGBuilder took 386.80 ms. Allocated memory is still 204.5 MB. Free memory was 178.8 MB in the beginning and 161.1 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2020-09-17 02:07:43,077 INFO L168 Benchmark]: TraceAbstraction took 10431.32 ms. Allocated memory was 204.5 MB in the beginning and 470.3 MB in the end (delta: 265.8 MB). Free memory was 160.5 MB in the beginning and 301.4 MB in the end (delta: -141.0 MB). Peak memory consumption was 124.8 MB. Max. memory is 7.1 GB. [2020-09-17 02:07:43,081 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 394.39 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 100.4 MB in the beginning and 182.5 MB in the end (delta: -82.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.53 ms. Allocated memory is still 204.5 MB. Free memory was 182.5 MB in the beginning and 180.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.86 ms. Allocated memory is still 204.5 MB. Free memory was 180.5 MB in the beginning and 178.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 386.80 ms. Allocated memory is still 204.5 MB. Free memory was 178.8 MB in the beginning and 161.1 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10431.32 ms. Allocated memory was 204.5 MB in the beginning and 470.3 MB in the end (delta: 265.8 MB). Free memory was 160.5 MB in the beginning and 301.4 MB in the end (delta: -141.0 MB). Peak memory consumption was 124.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 58 ProgramPointsBefore, 13 ProgramPointsAfterwards, 56 TransitionsBefore, 10 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 309 VarBasedMoverChecksPositive, 3 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 5 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 475 CheckedPairsTotal, 51 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 81 ProgramPointsBefore, 38 ProgramPointsAfterwards, 78 TransitionsBefore, 34 TransitionsAfterwards, 2760 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 1256 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 56 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 6323 CheckedPairsTotal, 49 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 104 ProgramPointsBefore, 52 ProgramPointsAfterwards, 100 TransitionsBefore, 47 TransitionsAfterwards, 5520 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 2516 VarBasedMoverChecksPositive, 102 VarBasedMoverChecksNegative, 48 SemBasedMoverChecksPositive, 123 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 0 MoverChecksTotal, 12937 CheckedPairsTotal, 60 TotalNumberOfCompositions - CounterExampleResult [Line: 25]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int g = 0; [L21] 0 static int s = 0; [L30] 0 int i; [L31] 0 pthread_t tid; [L34] 0 i = 0 VAL [g=0, s=0] [L34] EXPR 0 \read(i) [L34] COND TRUE 0 i < 3 [L35] FCALL, FORK 0 pthread_create(&tid, NULL, myThread, (void *)&i) VAL [g=0, s=0, vargp={5:0}] [L20] 1 int *myid = (int *)vargp; [L22] 1 ++s [L22] 1 ++g VAL [++g=1, g=0, myid={5:0}, s=1, vargp={5:0}, vargp={5:0}] [L22] 1 ++g VAL [g=1, myid={5:0}, s=1, vargp={5:0}, vargp={5:0}] [L24] 1 \read(*myid) VAL [\read(*myid)=0, g=1, myid={5:0}, s=1, vargp={5:0}, vargp={5:0}] [L34] EXPR 0 \read(i) [L34] 0 i++ [L34] EXPR 0 \read(i) [L34] COND TRUE 0 i < 3 [L35] FCALL, FORK 0 pthread_create(&tid, NULL, myThread, (void *)&i) VAL [\read(*myid)=0, g=1, myid={5:0}, s=1, vargp={5:0}, vargp={5:0}] [L20] 2 int *myid = (int *)vargp; [L22] 2 ++s VAL [\read(*myid)=0, g=1, myid={5:0}, s=2, vargp={5:0}, vargp={5:0}] [L24] 1 ++s VAL [++s=3, \read(*myid)=0, g=1, myid={5:0}, s=3, vargp={5:0}, vargp={5:0}] [L24] 1 ++g [L25] 1 CodeAnnotStmt[Assertion] VAL [g=2, myid={5:0}, s=3, vargp={5:0}, vargp={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 3 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.1s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 137 SDtfs, 270 SDslu, 628 SDs, 0 SdLazy, 205 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13894occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 1932 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 43 ConstructedInterpolants, 4 QuantifiedInterpolants, 6423 SizeOfPredicates, 6 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 7/36 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...