/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf -i ../../../trunk/examples/concurrent/pthreads/forkJoinNotMod.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 11:43:56,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 11:43:56,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 11:43:56,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 11:43:56,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 11:43:56,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 11:43:56,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 11:43:56,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 11:43:56,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 11:43:56,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 11:43:56,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 11:43:56,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 11:43:56,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 11:43:56,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 11:43:56,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 11:43:56,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 11:43:56,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 11:43:56,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 11:43:56,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 11:43:56,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 11:43:56,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 11:43:56,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 11:43:56,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 11:43:56,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 11:43:56,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 11:43:56,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 11:43:56,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 11:43:56,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 11:43:56,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 11:43:56,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 11:43:56,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 11:43:56,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 11:43:56,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 11:43:57,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 11:43:57,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 11:43:57,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 11:43:57,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 11:43:57,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 11:43:57,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 11:43:57,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 11:43:57,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 11:43:57,005 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf [2020-04-18 11:43:57,024 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 11:43:57,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 11:43:57,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 11:43:57,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 11:43:57,026 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 11:43:57,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 11:43:57,026 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 11:43:57,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 11:43:57,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 11:43:57,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 11:43:57,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 11:43:57,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 11:43:57,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 11:43:57,029 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 11:43:57,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 11:43:57,029 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 11:43:57,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 11:43:57,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 11:43:57,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 11:43:57,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 11:43:57,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 11:43:57,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:43:57,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 11:43:57,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 11:43:57,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 11:43:57,031 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 11:43:57,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 11:43:57,032 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 11:43:57,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 11:43:57,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 11:43:57,329 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 11:43:57,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 11:43:57,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 11:43:57,354 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 11:43:57,355 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 11:43:57,356 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkJoinNotMod.c [2020-04-18 11:43:57,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b2b5a92e/1c6456ada1af4339bd770b3a20af72e1/FLAG819a9ec39 [2020-04-18 11:43:57,897 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 11:43:57,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkJoinNotMod.c [2020-04-18 11:43:57,898 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-18 11:43:57,898 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-18 11:43:57,956 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b2b5a92e/1c6456ada1af4339bd770b3a20af72e1/FLAG819a9ec39 [2020-04-18 11:43:58,269 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b2b5a92e/1c6456ada1af4339bd770b3a20af72e1 [2020-04-18 11:43:58,278 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 11:43:58,295 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 11:43:58,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 11:43:58,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 11:43:58,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 11:43:58,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:43:58" (1/1) ... [2020-04-18 11:43:58,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d84bf83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58, skipping insertion in model container [2020-04-18 11:43:58,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:43:58" (1/1) ... [2020-04-18 11:43:58,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 11:43:58,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 11:43:58,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:43:58,534 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 11:43:58,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:43:58,657 INFO L208 MainTranslator]: Completed translation [2020-04-18 11:43:58,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58 WrapperNode [2020-04-18 11:43:58,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 11:43:58,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 11:43:58,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 11:43:58,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 11:43:58,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58" (1/1) ... [2020-04-18 11:43:58,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58" (1/1) ... [2020-04-18 11:43:58,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 11:43:58,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 11:43:58,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 11:43:58,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 11:43:58,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58" (1/1) ... [2020-04-18 11:43:58,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58" (1/1) ... [2020-04-18 11:43:58,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58" (1/1) ... [2020-04-18 11:43:58,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58" (1/1) ... [2020-04-18 11:43:58,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58" (1/1) ... [2020-04-18 11:43:58,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58" (1/1) ... [2020-04-18 11:43:58,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58" (1/1) ... [2020-04-18 11:43:58,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 11:43:58,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 11:43:58,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 11:43:58,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 11:43:58,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58" (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 [2020-04-18 11:43:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 11:43:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-04-18 11:43:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-04-18 11:43:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2020-04-18 11:43:58,778 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2020-04-18 11:43:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 11:43:58,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 11:43:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 11:43:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 11:43:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-04-18 11:43:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 11:43:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 11:43:58,780 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 11:43:59,200 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 11:43:59,200 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-04-18 11:43:59,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:43:59 BoogieIcfgContainer [2020-04-18 11:43:59,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 11:43:59,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 11:43:59,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 11:43:59,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 11:43:59,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:43:58" (1/3) ... [2020-04-18 11:43:59,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f37859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:43:59, skipping insertion in model container [2020-04-18 11:43:59,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:43:58" (2/3) ... [2020-04-18 11:43:59,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f37859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:43:59, skipping insertion in model container [2020-04-18 11:43:59,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:43:59" (3/3) ... [2020-04-18 11:43:59,213 INFO L109 eAbstractionObserver]: Analyzing ICFG forkJoinNotMod.c [2020-04-18 11:43:59,224 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 11:43:59,225 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 11:43:59,233 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-04-18 11:43:59,234 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 11:43:59,272 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,273 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,273 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,273 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,274 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,274 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,274 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,275 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,275 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,275 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,275 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,275 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,276 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,276 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,276 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,276 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,277 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,277 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,277 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,278 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,278 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,278 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,278 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,279 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,279 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,279 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,279 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,280 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,280 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,280 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,280 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,281 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,281 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,281 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,281 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,282 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,282 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,282 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,282 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,283 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,283 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,284 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,284 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,284 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,284 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,285 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,285 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,285 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,285 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,286 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,286 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,286 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,286 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,287 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,287 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,287 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,287 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,288 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,288 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,288 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,288 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,289 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,289 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,289 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,289 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,290 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,290 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,290 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,290 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,291 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,295 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,295 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,296 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,296 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,296 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,296 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,297 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,297 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,297 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,297 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,298 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,298 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,298 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,298 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,299 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,299 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,299 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,300 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,300 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,300 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,300 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,300 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,301 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:43:59,323 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 11:43:59,345 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:43:59,345 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:43:59,345 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:43:59,345 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:43:59,346 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:43:59,346 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:43:59,346 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:43:59,346 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:43:59,364 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 75 transitions, 158 flow [2020-04-18 11:43:59,366 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 158 flow [2020-04-18 11:43:59,436 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2020-04-18 11:43:59,445 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-04-18 11:43:59,449 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 74 events. 0/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-04-18 11:43:59,452 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 158 flow [2020-04-18 11:43:59,475 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2020-04-18 11:43:59,476 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-04-18 11:43:59,476 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 74 events. 0/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-04-18 11:43:59,478 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 496 [2020-04-18 11:43:59,479 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-18 11:44:00,385 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 11:44:01,326 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-04-18 11:44:01,814 WARN L192 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-04-18 11:44:01,980 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-04-18 11:44:02,195 INFO L539 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 11:44:02,301 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-04-18 11:44:02,302 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 11:44:02,309 INFO L539 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 11:44:02,383 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 11:44:02,384 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 11:44:02,384 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:125, output treesize:127 [2020-04-18 11:44:02,726 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-04-18 11:44:02,915 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-04-18 11:44:04,155 WARN L192 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 129 DAG size of output: 127 [2020-04-18 11:44:04,667 WARN L192 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-04-18 11:44:04,670 INFO L206 etLargeBlockEncoding]: Checked pairs total: 482 [2020-04-18 11:44:04,670 INFO L214 etLargeBlockEncoding]: Total number of compositions: 69 [2020-04-18 11:44:04,674 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 13 transitions, 34 flow [2020-04-18 11:44:04,681 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-04-18 11:44:04,683 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-04-18 11:44:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-04-18 11:44:04,688 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:44:04,688 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-04-18 11:44:04,689 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2020-04-18 11:44:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:04,692 INFO L82 PathProgramCache]: Analyzing trace with hash 277840, now seen corresponding path program 1 times [2020-04-18 11:44:04,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:44:04,698 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [740267279] [2020-04-18 11:44:04,714 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:04,725 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-04-18 11:44:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-04-18 11:44:04,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-04-18 11:44:04,727 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:44:04,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:04,728 INFO L82 PathProgramCache]: Analyzing trace with hash 277840, now seen corresponding path program 2 times [2020-04-18 11:44:04,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:44:04,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252975995] [2020-04-18 11:44:04,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:44:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:44:04,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:44:04,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252975995] [2020-04-18 11:44:04,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:44:04,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 11:44:04,887 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:44:04,887 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:04,888 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-04-18 11:44:04,888 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:44:04,893 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:44:04,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:44:04,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:44:04,899 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2020-04-18 11:44:04,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:44:04,902 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2020-04-18 11:44:04,902 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2020-04-18 11:44:04,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:44:04,903 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [740267279] [2020-04-18 11:44:04,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:44:04,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 11:44:04,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [740267279] [2020-04-18 11:44:04,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:44:04,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:44:04,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:44:04,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:44:04,909 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-04-18 11:44:04,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:44:04,924 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2020-04-18 11:44:04,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:44:04,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-04-18 11:44:04,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:44:04,935 INFO L225 Difference]: With dead ends: 17 [2020-04-18 11:44:04,935 INFO L226 Difference]: Without dead ends: 16 [2020-04-18 11:44:04,937 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:44:04,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-04-18 11:44:04,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-04-18 11:44:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-04-18 11:44:04,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2020-04-18 11:44:04,963 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 21 transitions. Word has length 3 [2020-04-18 11:44:04,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:44:04,963 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-04-18 11:44:04,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:44:04,963 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2020-04-18 11:44:04,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-04-18 11:44:04,963 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:44:04,963 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-04-18 11:44:04,964 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2020-04-18 11:44:04,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:04,964 INFO L82 PathProgramCache]: Analyzing trace with hash 277825, now seen corresponding path program 1 times [2020-04-18 11:44:04,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:44:04,964 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [811079927] [2020-04-18 11:44:04,965 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:04,965 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-04-18 11:44:04,965 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-04-18 11:44:04,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-04-18 11:44:04,965 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:44:04,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:04,966 INFO L82 PathProgramCache]: Analyzing trace with hash 277825, now seen corresponding path program 2 times [2020-04-18 11:44:04,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:44:04,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615931997] [2020-04-18 11:44:04,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:44:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:44:05,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:44:05,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615931997] [2020-04-18 11:44:05,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:44:05,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 11:44:05,063 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:44:05,063 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:05,064 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-04-18 11:44:05,064 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:44:05,068 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:44:05,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:44:05,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:44:05,069 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2020-04-18 11:44:05,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:44:05,071 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2020-04-18 11:44:05,071 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2020-04-18 11:44:05,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:44:05,072 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [811079927] [2020-04-18 11:44:05,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:44:05,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 11:44:05,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [811079927] [2020-04-18 11:44:05,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:44:05,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:44:05,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:44:05,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:44:05,074 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. Second operand 3 states. [2020-04-18 11:44:05,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:44:05,103 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2020-04-18 11:44:05,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:44:05,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-04-18 11:44:05,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:44:05,105 INFO L225 Difference]: With dead ends: 20 [2020-04-18 11:44:05,105 INFO L226 Difference]: Without dead ends: 17 [2020-04-18 11:44:05,106 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:44:05,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-04-18 11:44:05,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2020-04-18 11:44:05,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-04-18 11:44:05,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2020-04-18 11:44:05,110 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 3 [2020-04-18 11:44:05,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:44:05,110 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-04-18 11:44:05,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:44:05,111 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-04-18 11:44:05,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-18 11:44:05,111 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:44:05,111 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-18 11:44:05,111 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2020-04-18 11:44:05,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:05,112 INFO L82 PathProgramCache]: Analyzing trace with hash 8613291, now seen corresponding path program 1 times [2020-04-18 11:44:05,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:44:05,112 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1647731663] [2020-04-18 11:44:05,113 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:05,113 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 6 transitions. [2020-04-18 11:44:05,114 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-04-18 11:44:05,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-18 11:44:05,114 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:44:05,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:05,114 INFO L82 PathProgramCache]: Analyzing trace with hash 8613291, now seen corresponding path program 2 times [2020-04-18 11:44:05,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:44:05,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665098107] [2020-04-18 11:44:05,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:44:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:44:05,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:44:05,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665098107] [2020-04-18 11:44:05,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:44:05,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:44:05,227 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:44:05,227 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:05,229 INFO L259 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-04-18 11:44:05,229 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:44:05,241 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:44:05,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:44:05,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:44:05,242 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2020-04-18 11:44:05,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:44:05,256 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2020-04-18 11:44:05,256 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-04-18 11:44:05,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:44:05,276 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1647731663] [2020-04-18 11:44:05,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:44:05,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:44:05,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1647731663] [2020-04-18 11:44:05,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 11:44:05,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:44:05,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:44:05,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:44:05,279 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand 4 states. [2020-04-18 11:44:05,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:44:05,304 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-04-18 11:44:05,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:44:05,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-04-18 11:44:05,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:44:05,306 INFO L225 Difference]: With dead ends: 14 [2020-04-18 11:44:05,306 INFO L226 Difference]: Without dead ends: 14 [2020-04-18 11:44:05,307 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:44:05,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-04-18 11:44:05,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-04-18 11:44:05,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-04-18 11:44:05,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-04-18 11:44:05,309 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 4 [2020-04-18 11:44:05,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:44:05,309 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-04-18 11:44:05,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 11:44:05,310 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-04-18 11:44:05,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 11:44:05,310 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:44:05,310 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-04-18 11:44:05,310 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2020-04-18 11:44:05,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:05,311 INFO L82 PathProgramCache]: Analyzing trace with hash 267013202, now seen corresponding path program 1 times [2020-04-18 11:44:05,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:44:05,311 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [685886765] [2020-04-18 11:44:05,311 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:44:05,312 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 9 transitions. [2020-04-18 11:44:05,312 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-04-18 11:44:05,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 11:44:05,313 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:44:05,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:44:05,314 INFO L82 PathProgramCache]: Analyzing trace with hash 267013202, now seen corresponding path program 2 times [2020-04-18 11:44:05,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:44:05,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810632415] [2020-04-18 11:44:05,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:44:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:44:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:44:05,422 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 11:44:05,423 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 11:44:05,423 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 11:44:05,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:44:05 BasicIcfg [2020-04-18 11:44:05,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 11:44:05,464 INFO L168 Benchmark]: Toolchain (without parser) took 7183.66 ms. Allocated memory was 136.8 MB in the beginning and 286.3 MB in the end (delta: 149.4 MB). Free memory was 99.2 MB in the beginning and 241.8 MB in the end (delta: -142.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 7.1 GB. [2020-04-18 11:44:05,465 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 11:44:05,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.94 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 97.2 MB in the beginning and 179.4 MB in the end (delta: -82.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-04-18 11:44:05,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.81 ms. Allocated memory is still 201.3 MB. Free memory was 179.4 MB in the beginning and 176.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-04-18 11:44:05,467 INFO L168 Benchmark]: Boogie Preprocessor took 26.58 ms. Allocated memory is still 201.3 MB. Free memory was 176.9 MB in the beginning and 175.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 11:44:05,468 INFO L168 Benchmark]: RCFGBuilder took 481.97 ms. Allocated memory is still 201.3 MB. Free memory was 175.5 MB in the beginning and 151.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-04-18 11:44:05,469 INFO L168 Benchmark]: TraceAbstraction took 6255.98 ms. Allocated memory was 201.3 MB in the beginning and 286.3 MB in the end (delta: 84.9 MB). Free memory was 151.4 MB in the beginning and 241.8 MB in the end (delta: -90.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 11:44:05,473 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 361.94 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 97.2 MB in the beginning and 179.4 MB in the end (delta: -82.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.81 ms. Allocated memory is still 201.3 MB. Free memory was 179.4 MB in the beginning and 176.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.58 ms. Allocated memory is still 201.3 MB. Free memory was 176.9 MB in the beginning and 175.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 481.97 ms. Allocated memory is still 201.3 MB. Free memory was 175.5 MB in the beginning and 151.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6255.98 ms. Allocated memory was 201.3 MB in the beginning and 286.3 MB in the end (delta: 84.9 MB). Free memory was 151.4 MB in the beginning and 241.8 MB in the end (delta: -90.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 5.3s, 79 ProgramPointsBefore, 17 ProgramPointsAfterwards, 75 TransitionsBefore, 13 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 7 FixpointIterations, 33 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 257 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 482 CheckedPairsTotal, 69 TotalNumberOfCompositions - CounterExampleResult [Line: 33]: assertion can be violated assertion can be violated We found a FailurePath: [L14] 0 int globVar; [L27] 0 int locVar = 7; [L28] 0 globVar = 0 [L30] 0 pthread_t thread_id; [L32] FCALL, FORK 0 pthread_create(&thread_id, NULL, increment, &globVar) VAL [globVar={5:0}, n={5:0}] [L18] 1 int *result = (int *)n; [L18] EXPR 1 \read(*n) [L18] 1 int *result = (int *)n; [L19] EXPR 1 \read(*result) [L19] 1 (*result)++ [L20] 1 \read(*result) [L21] 1 \read(*result) [L23] EXPR 1 \read(*result) [L23] 1 return (void *)result; [L23] 1 return (void *)result; [L18] 1 int *result = (int *)n; [L23] 1 return (void *)result; [L33] FCALL 0 IdentifierExpression[globVar] [L33] 0 CodeAnnotStmt[Assertion] VAL [\result={5:0}, globVar={5:0}, n={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 17 SDtfs, 14 SDslu, 3 SDs, 0 SdLazy, 26 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...