/usr/bin/java -Xmx16000000000 -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/VMCAI2021_PN.epf -i ../../../trunk/examples/concurrent/pthreads/forkJoinNotMod.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 20:00:22,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 20:00:22,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 20:00:22,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 20:00:22,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 20:00:22,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 20:00:22,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 20:00:22,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 20:00:22,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 20:00:22,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 20:00:22,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 20:00:22,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 20:00:22,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 20:00:22,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 20:00:22,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 20:00:22,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 20:00:22,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 20:00:22,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 20:00:22,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 20:00:22,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 20:00:22,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 20:00:22,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 20:00:22,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 20:00:22,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 20:00:22,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 20:00:22,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 20:00:22,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 20:00:22,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 20:00:22,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 20:00:22,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 20:00:22,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 20:00:22,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 20:00:22,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 20:00:22,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 20:00:22,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 20:00:22,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 20:00:22,227 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 20:00:22,266 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 20:00:22,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 20:00:22,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 20:00:22,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 20:00:22,269 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 20:00:22,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 20:00:22,270 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 20:00:22,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 20:00:22,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 20:00:22,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 20:00:22,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 20:00:22,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 20:00:22,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 20:00:22,272 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 20:00:22,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 20:00:22,273 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 20:00:22,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 20:00:22,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 20:00:22,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 20:00:22,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 20:00:22,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 20:00:22,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 20:00:22,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 20:00:22,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 20:00:22,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 20:00:22,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 20:00:22,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 20:00:22,275 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 20:00:22,275 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 20:00:22,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 20:00:22,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 20:00:22,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 20:00:22,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 20:00:22,580 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 20:00:22,582 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 20:00:22,583 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkJoinNotMod.c [2020-10-11 20:00:22,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f49b3707e/9de083a23a70438eb3b8947700237a42/FLAGff7c4e331 [2020-10-11 20:00:23,097 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 20:00:23,098 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkJoinNotMod.c [2020-10-11 20:00:23,098 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-11 20:00:23,098 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-11 20:00:23,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f49b3707e/9de083a23a70438eb3b8947700237a42/FLAGff7c4e331 [2020-10-11 20:00:23,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f49b3707e/9de083a23a70438eb3b8947700237a42 [2020-10-11 20:00:23,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 20:00:23,423 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 20:00:23,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 20:00:23,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 20:00:23,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 20:00:23,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:00:23" (1/1) ... [2020-10-11 20:00:23,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9259f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23, skipping insertion in model container [2020-10-11 20:00:23,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:00:23" (1/1) ... [2020-10-11 20:00:23,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 20:00:23,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 20:00:23,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 20:00:23,631 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 20:00:23,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 20:00:23,752 INFO L208 MainTranslator]: Completed translation [2020-10-11 20:00:23,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23 WrapperNode [2020-10-11 20:00:23,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 20:00:23,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 20:00:23,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 20:00:23,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 20:00:23,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23" (1/1) ... [2020-10-11 20:00:23,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23" (1/1) ... [2020-10-11 20:00:23,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 20:00:23,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 20:00:23,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 20:00:23,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 20:00:23,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23" (1/1) ... [2020-10-11 20:00:23,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23" (1/1) ... [2020-10-11 20:00:23,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23" (1/1) ... [2020-10-11 20:00:23,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23" (1/1) ... [2020-10-11 20:00:23,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23" (1/1) ... [2020-10-11 20:00:23,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23" (1/1) ... [2020-10-11 20:00:23,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23" (1/1) ... [2020-10-11 20:00:23,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 20:00:23,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 20:00:23,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 20:00:23,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 20:00:23,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 20:00:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 20:00:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-11 20:00:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-11 20:00:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2020-10-11 20:00:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2020-10-11 20:00:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 20:00:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 20:00:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 20:00:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-11 20:00:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-11 20:00:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 20:00:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 20:00:23,880 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 20:00:24,237 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 20:00:24,238 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-11 20:00:24,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:00:24 BoogieIcfgContainer [2020-10-11 20:00:24,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 20:00:24,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 20:00:24,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 20:00:24,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 20:00:24,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:00:23" (1/3) ... [2020-10-11 20:00:24,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30be75ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:00:24, skipping insertion in model container [2020-10-11 20:00:24,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:23" (2/3) ... [2020-10-11 20:00:24,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30be75ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:00:24, skipping insertion in model container [2020-10-11 20:00:24,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:00:24" (3/3) ... [2020-10-11 20:00:24,248 INFO L111 eAbstractionObserver]: Analyzing ICFG forkJoinNotMod.c [2020-10-11 20:00:24,260 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 20:00:24,268 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-11 20:00:24,269 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 20:00:24,300 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,300 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,301 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,301 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,301 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,301 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,302 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,302 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,302 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,302 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,303 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,303 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,303 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,303 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,303 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,304 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,304 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,304 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,304 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,304 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,305 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,305 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,305 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,305 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,306 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,306 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,306 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,306 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,306 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,307 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,307 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,307 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,307 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,308 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,308 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,308 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,308 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,308 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,308 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,309 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,309 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,309 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,309 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,310 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,310 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,310 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,310 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,310 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,311 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,311 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,311 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,311 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,311 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,312 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,312 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,312 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,312 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,312 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,313 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,313 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,313 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,313 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,313 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,314 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,314 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,314 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,314 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,314 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,315 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,315 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,319 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,319 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,319 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,320 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,320 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,320 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,320 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,320 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,320 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,321 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,321 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,321 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,321 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,321 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,322 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,322 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,322 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,322 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,322 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,323 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,323 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,323 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,323 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:24,347 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 20:00:24,369 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 20:00:24,369 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 20:00:24,369 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 20:00:24,370 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 20:00:24,370 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 20:00:24,370 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 20:00:24,370 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 20:00:24,370 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 20:00:24,385 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 158 flow [2020-10-11 20:00:24,433 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2020-10-11 20:00:24,433 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-11 20:00:24,436 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. [2020-10-11 20:00:24,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 75 transitions, 158 flow [2020-10-11 20:00:24,443 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 68 transitions, 142 flow [2020-10-11 20:00:24,453 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2020-10-11 20:00:24,454 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 20:00:24,454 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 20:00:24,455 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 20:00:24,455 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2020-10-11 20:00:24,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 20:00:24,462 INFO L82 PathProgramCache]: Analyzing trace with hash -813219641, now seen corresponding path program 1 times [2020-10-11 20:00:24,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 20:00:24,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475269288] [2020-10-11 20:00:24,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 20:00:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 20:00:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 20:00:24,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475269288] [2020-10-11 20:00:24,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 20:00:24,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 20:00:24,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81092452] [2020-10-11 20:00:24,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 20:00:24,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 20:00:24,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 20:00:24,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-11 20:00:25,836 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 75 [2020-10-11 20:00:25,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 142 flow. Second operand 7 states. [2020-10-11 20:00:25,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 20:00:25,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 75 [2020-10-11 20:00:25,840 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 20:00:26,018 INFO L129 PetriNetUnfolder]: 18/189 cut-off events. [2020-10-11 20:00:26,018 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-11 20:00:26,021 INFO L80 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 189 events. 18/189 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 506 event pairs, 2 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 205. Up to 16 conditions per place. [2020-10-11 20:00:26,024 INFO L132 encePairwiseOnDemand]: 66/75 looper letters, 14 selfloop transitions, 13 changer transitions 0/81 dead transitions. [2020-10-11 20:00:26,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 81 transitions, 222 flow [2020-10-11 20:00:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 20:00:26,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-11 20:00:26,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 502 transitions. [2020-10-11 20:00:26,044 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8366666666666667 [2020-10-11 20:00:26,046 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 502 transitions. [2020-10-11 20:00:26,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 502 transitions. [2020-10-11 20:00:26,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 20:00:26,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 502 transitions. [2020-10-11 20:00:26,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-11 20:00:26,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-11 20:00:26,066 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-11 20:00:26,069 INFO L185 Difference]: Start difference. First operand has 72 places, 68 transitions, 142 flow. Second operand 8 states and 502 transitions. [2020-10-11 20:00:26,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 81 transitions, 222 flow [2020-10-11 20:00:26,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 81 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 20:00:26,081 INFO L241 Difference]: Finished difference. Result has 83 places, 75 transitions, 214 flow [2020-10-11 20:00:26,084 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=214, PETRI_PLACES=83, PETRI_TRANSITIONS=75} [2020-10-11 20:00:26,085 INFO L341 CegarLoopForPetriNet]: 72 programPoint places, 11 predicate places. [2020-10-11 20:00:26,086 INFO L481 AbstractCegarLoop]: Abstraction has has 83 places, 75 transitions, 214 flow [2020-10-11 20:00:26,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 20:00:26,086 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 20:00:26,086 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 20:00:26,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 20:00:26,087 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2020-10-11 20:00:26,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 20:00:26,088 INFO L82 PathProgramCache]: Analyzing trace with hash 242958502, now seen corresponding path program 1 times [2020-10-11 20:00:26,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 20:00:26,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110421537] [2020-10-11 20:00:26,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 20:00:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 20:00:26,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 20:00:26,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110421537] [2020-10-11 20:00:26,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 20:00:26,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 20:00:26,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894758425] [2020-10-11 20:00:26,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 20:00:26,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 20:00:26,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 20:00:26,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-11 20:00:27,472 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 75 [2020-10-11 20:00:27,473 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 75 transitions, 214 flow. Second operand 8 states. [2020-10-11 20:00:27,473 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 20:00:27,473 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 75 [2020-10-11 20:00:27,474 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 20:00:27,638 INFO L129 PetriNetUnfolder]: 28/222 cut-off events. [2020-10-11 20:00:27,639 INFO L130 PetriNetUnfolder]: For 138/138 co-relation queries the response was YES. [2020-10-11 20:00:27,641 INFO L80 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 222 events. 28/222 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 665 event pairs, 1 based on Foata normal form. 5/223 useless extension candidates. Maximal degree in co-relation 294. Up to 23 conditions per place. [2020-10-11 20:00:27,643 INFO L132 encePairwiseOnDemand]: 65/75 looper letters, 21 selfloop transitions, 20 changer transitions 0/92 dead transitions. [2020-10-11 20:00:27,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 92 transitions, 380 flow [2020-10-11 20:00:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 20:00:27,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 20:00:27,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 598 transitions. [2020-10-11 20:00:27,648 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7973333333333333 [2020-10-11 20:00:27,648 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 598 transitions. [2020-10-11 20:00:27,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 598 transitions. [2020-10-11 20:00:27,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 20:00:27,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 598 transitions. [2020-10-11 20:00:27,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 20:00:27,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 20:00:27,654 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 20:00:27,654 INFO L185 Difference]: Start difference. First operand has 83 places, 75 transitions, 214 flow. Second operand 10 states and 598 transitions. [2020-10-11 20:00:27,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 92 transitions, 380 flow [2020-10-11 20:00:27,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 20:00:27,661 INFO L241 Difference]: Finished difference. Result has 97 places, 84 transitions, 339 flow [2020-10-11 20:00:27,661 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=339, PETRI_PLACES=97, PETRI_TRANSITIONS=84} [2020-10-11 20:00:27,662 INFO L341 CegarLoopForPetriNet]: 72 programPoint places, 25 predicate places. [2020-10-11 20:00:27,662 INFO L481 AbstractCegarLoop]: Abstraction has has 97 places, 84 transitions, 339 flow [2020-10-11 20:00:27,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 20:00:27,662 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 20:00:27,663 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 20:00:27,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 20:00:27,663 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2020-10-11 20:00:27,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 20:00:27,664 INFO L82 PathProgramCache]: Analyzing trace with hash 179977310, now seen corresponding path program 1 times [2020-10-11 20:00:27,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 20:00:27,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704349300] [2020-10-11 20:00:27,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 20:00:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 20:00:27,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 20:00:27,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704349300] [2020-10-11 20:00:27,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 20:00:27,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 20:00:27,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82438110] [2020-10-11 20:00:27,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 20:00:27,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 20:00:27,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 20:00:27,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 20:00:27,732 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 75 [2020-10-11 20:00:27,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 84 transitions, 339 flow. Second operand 3 states. [2020-10-11 20:00:27,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 20:00:27,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 75 [2020-10-11 20:00:27,734 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 20:00:27,777 INFO L129 PetriNetUnfolder]: 12/171 cut-off events. [2020-10-11 20:00:27,777 INFO L130 PetriNetUnfolder]: For 138/149 co-relation queries the response was YES. [2020-10-11 20:00:27,779 INFO L80 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 171 events. 12/171 cut-off events. For 138/149 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 425 event pairs, 0 based on Foata normal form. 2/172 useless extension candidates. Maximal degree in co-relation 260. Up to 10 conditions per place. [2020-10-11 20:00:27,780 INFO L132 encePairwiseOnDemand]: 72/75 looper letters, 2 selfloop transitions, 1 changer transitions 2/82 dead transitions. [2020-10-11 20:00:27,780 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 82 transitions, 341 flow [2020-10-11 20:00:27,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 20:00:27,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 20:00:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2020-10-11 20:00:27,782 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9422222222222222 [2020-10-11 20:00:27,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 212 transitions. [2020-10-11 20:00:27,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 212 transitions. [2020-10-11 20:00:27,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 20:00:27,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 212 transitions. [2020-10-11 20:00:27,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 20:00:27,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 20:00:27,784 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 20:00:27,784 INFO L185 Difference]: Start difference. First operand has 97 places, 84 transitions, 339 flow. Second operand 3 states and 212 transitions. [2020-10-11 20:00:27,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 82 transitions, 341 flow [2020-10-11 20:00:27,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 82 transitions, 333 flow, removed 1 selfloop flow, removed 2 redundant places. [2020-10-11 20:00:27,790 INFO L241 Difference]: Finished difference. Result has 95 places, 80 transitions, 325 flow [2020-10-11 20:00:27,791 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=95, PETRI_TRANSITIONS=80} [2020-10-11 20:00:27,791 INFO L341 CegarLoopForPetriNet]: 72 programPoint places, 23 predicate places. [2020-10-11 20:00:27,791 INFO L481 AbstractCegarLoop]: Abstraction has has 95 places, 80 transitions, 325 flow [2020-10-11 20:00:27,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 20:00:27,791 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 20:00:27,792 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 20:00:27,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 20:00:27,792 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2020-10-11 20:00:27,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 20:00:27,793 INFO L82 PathProgramCache]: Analyzing trace with hash -290690096, now seen corresponding path program 1 times [2020-10-11 20:00:27,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 20:00:27,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994502795] [2020-10-11 20:00:27,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 20:00:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 20:00:27,829 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 20:00:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 20:00:27,858 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 20:00:27,913 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 20:00:27,913 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 20:00:27,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 20:00:27,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 08:00:27 BasicIcfg [2020-10-11 20:00:27,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 20:00:27,994 INFO L168 Benchmark]: Toolchain (without parser) took 4570.27 ms. Allocated memory was 250.6 MB in the beginning and 419.4 MB in the end (delta: 168.8 MB). Free memory was 203.8 MB in the beginning and 365.5 MB in the end (delta: -161.7 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.2 GB. [2020-10-11 20:00:27,995 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 250.6 MB. Free memory is still 224.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 20:00:27,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.82 ms. Allocated memory was 250.6 MB in the beginning and 314.0 MB in the end (delta: 63.4 MB). Free memory was 203.8 MB in the beginning and 289.1 MB in the end (delta: -85.3 MB). Peak memory consumption was 27.7 MB. Max. memory is 14.2 GB. [2020-10-11 20:00:27,996 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.34 ms. Allocated memory is still 314.0 MB. Free memory was 289.1 MB in the beginning and 287.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.2 GB. [2020-10-11 20:00:27,997 INFO L168 Benchmark]: Boogie Preprocessor took 23.42 ms. Allocated memory is still 314.0 MB. Free memory was 287.8 MB in the beginning and 285.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 20:00:27,998 INFO L168 Benchmark]: RCFGBuilder took 420.92 ms. Allocated memory is still 314.0 MB. Free memory was 285.3 MB in the beginning and 260.3 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 14.2 GB. [2020-10-11 20:00:27,999 INFO L168 Benchmark]: TraceAbstraction took 3750.37 ms. Allocated memory was 314.0 MB in the beginning and 419.4 MB in the end (delta: 105.4 MB). Free memory was 260.3 MB in the beginning and 365.5 MB in the end (delta: -105.2 MB). Peak memory consumption was 173.7 kB. Max. memory is 14.2 GB. [2020-10-11 20:00:28,004 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 250.6 MB. Free memory is still 224.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 328.82 ms. Allocated memory was 250.6 MB in the beginning and 314.0 MB in the end (delta: 63.4 MB). Free memory was 203.8 MB in the beginning and 289.1 MB in the end (delta: -85.3 MB). Peak memory consumption was 27.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 41.34 ms. Allocated memory is still 314.0 MB. Free memory was 289.1 MB in the beginning and 287.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 23.42 ms. Allocated memory is still 314.0 MB. Free memory was 287.8 MB in the beginning and 285.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 420.92 ms. Allocated memory is still 314.0 MB. Free memory was 285.3 MB in the beginning and 260.3 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3750.37 ms. Allocated memory was 314.0 MB in the beginning and 419.4 MB in the end (delta: 105.4 MB). Free memory was 260.3 MB in the beginning and 365.5 MB in the end (delta: -105.2 MB). Peak memory consumption was 173.7 kB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 33]: assertion can be violated assertion can be violated We found a FailurePath: [L14] 0 int globVar; VAL [globVar={11:0}] [L27] 0 int locVar = 7; VAL [globVar={11:0}] [L28] 0 globVar = 0 VAL [globVar={11:0}] [L30] 0 pthread_t thread_id; VAL [globVar={11:0}] [L32] FCALL, FORK 0 pthread_create(&thread_id, NULL, increment, &globVar) VAL [globVar={11:0}, n={11:0}] [L18] 1 int *result = (int *)n; VAL [globVar={11:0}, n={11:0}, n={16:0}, result={2:0}] [L18] EXPR 1 \read(*n) VAL [\read(*n)={11:0}, globVar={11:0}, n={11:0}, n={16:0}, result={2:0}] [L18] 1 int *result = (int *)n; VAL [\read(*n)={11:0}, globVar={11:0}, n={16:0}, n={11:0}, result={2:0}] [L19] EXPR 1 \read(*result) VAL [\read(*result)={11:0}, \read(*result)=0, globVar={11:0}, n={16:0}, n={11:0}, result={2:0}] [L19] 1 (*result)++ VAL [(*result)++=0, \read(*result)=0, \read(*result)={11:0}, globVar={11:0}, n={11:0}, n={16:0}, result={2:0}] [L33] FCALL 0 IdentifierExpression[globVar] VAL [(*result)++=0, \read(*result)=0, \read(*result)={11:0}, globVar={11:0}, n={11:0}, n={16:0}, result={2:0}] [L33] 0 CodeAnnotStmt[Assertion] VAL [(*result)++=0, \read(*result)=0, \read(*result)={11:0}, globVar={11:0}, n={16:0}, n={11:0}, result={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 3.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 177 SDslu, 275 SDs, 0 SdLazy, 656 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 5158 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...