/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-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:10:05,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:10:05,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:10:05,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:10:05,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:10:05,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:10:05,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:10:05,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:10:05,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:10:05,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:10:05,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:10:05,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:10:05,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:10:05,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:10:05,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:10:05,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:10:05,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:10:05,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:10:05,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:10:05,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:10:05,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:10:05,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:10:05,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:10:05,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:10:05,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:10:05,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:10:05,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:10:05,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:10:05,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:10:05,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:10:05,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:10:05,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:10:05,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:10:05,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:10:05,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:10:05,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:10:05,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:10:05,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:10:05,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:10:05,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:10:05,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:10:05,217 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-NoLbe-McrStrategy.epf [2020-04-18 20:10:05,241 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:10:05,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:10:05,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:10:05,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:10:05,244 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:10:05,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:10:05,244 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:10:05,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:10:05,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:10:05,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:10:05,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:10:05,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:10:05,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:10:05,246 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:10:05,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:10:05,247 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:10:05,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:10:05,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:10:05,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:10:05,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:10:05,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:10:05,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:10:05,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:10:05,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:10:05,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:10:05,250 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:10:05,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:10:05,250 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:10:05,250 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:10:05,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:10:05,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:10:05,530 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:10:05,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:10:05,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:10:05,550 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:10:05,551 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:10:05,552 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2020-04-18 20:10:05,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bfb79778/22957c5b97d94fedb5dd70d18d994500/FLAG115127028 [2020-04-18 20:10:06,213 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:10:06,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2020-04-18 20:10:06,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bfb79778/22957c5b97d94fedb5dd70d18d994500/FLAG115127028 [2020-04-18 20:10:06,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bfb79778/22957c5b97d94fedb5dd70d18d994500 [2020-04-18 20:10:06,501 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:10:06,518 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:10:06,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:10:06,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:10:06,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:10:06,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:10:06" (1/1) ... [2020-04-18 20:10:06,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f017814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:06, skipping insertion in model container [2020-04-18 20:10:06,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:10:06" (1/1) ... [2020-04-18 20:10:06,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:10:06,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:10:07,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:10:07,108 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:10:07,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:10:07,221 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:10:07,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:07 WrapperNode [2020-04-18 20:10:07,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:10:07,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:10:07,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:10:07,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:10:07,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:07" (1/1) ... [2020-04-18 20:10:07,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:07" (1/1) ... [2020-04-18 20:10:07,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:10:07,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:10:07,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:10:07,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:10:07,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:07" (1/1) ... [2020-04-18 20:10:07,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:07" (1/1) ... [2020-04-18 20:10:07,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:07" (1/1) ... [2020-04-18 20:10:07,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:07" (1/1) ... [2020-04-18 20:10:07,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:07" (1/1) ... [2020-04-18 20:10:07,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:07" (1/1) ... [2020-04-18 20:10:07,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:07" (1/1) ... [2020-04-18 20:10:07,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:10:07,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:10:07,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:10:07,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:10:07,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:07" (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 20:10:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-04-18 20:10:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-04-18 20:10:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-18 20:10:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-18 20:10:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:10:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:10:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:10:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:10:07,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:10:07,394 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 20:10:07,745 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:10:07,745 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-04-18 20:10:07,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:10:07 BoogieIcfgContainer [2020-04-18 20:10:07,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:10:07,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:10:07,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:10:07,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:10:07,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:10:06" (1/3) ... [2020-04-18 20:10:07,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2953cf1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:10:07, skipping insertion in model container [2020-04-18 20:10:07,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:07" (2/3) ... [2020-04-18 20:10:07,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2953cf1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:10:07, skipping insertion in model container [2020-04-18 20:10:07,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:10:07" (3/3) ... [2020-04-18 20:10:07,758 INFO L109 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2020-04-18 20:10:07,769 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:10:07,769 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:10:07,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:10:07,778 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:10:07,808 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,809 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,809 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,810 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,810 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,811 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,811 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,811 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,812 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,813 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,813 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,813 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,813 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,814 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,814 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,814 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,815 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,815 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,815 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,816 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,816 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,820 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,820 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,821 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,821 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,821 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,822 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,827 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,827 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,827 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,828 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,828 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:07,844 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 20:10:07,863 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:10:07,864 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:10:07,864 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:10:07,864 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:10:07,864 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:10:07,864 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:10:07,864 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:10:07,865 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:10:07,878 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 61 transitions, 132 flow [2020-04-18 20:10:07,971 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1274 states. [2020-04-18 20:10:07,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states. [2020-04-18 20:10:07,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-04-18 20:10:07,988 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:07,989 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:10:07,989 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 20:10:07,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:07,996 INFO L82 PathProgramCache]: Analyzing trace with hash -305173420, now seen corresponding path program 1 times [2020-04-18 20:10:08,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:08,005 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1394187448] [2020-04-18 20:10:08,024 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:08,044 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 29 transitions. [2020-04-18 20:10:08,046 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-04-18 20:10:08,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-04-18 20:10:08,048 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:08,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:08,049 INFO L82 PathProgramCache]: Analyzing trace with hash -305173420, now seen corresponding path program 2 times [2020-04-18 20:10:08,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:08,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511607551] [2020-04-18 20:10:08,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:08,532 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 20:10:08,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511607551] [2020-04-18 20:10:08,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:08,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 20:10:08,537 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:08,543 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:08,556 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 29 transitions. [2020-04-18 20:10:08,556 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:08,669 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:10:08,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:10:08,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:10:08,676 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 8 states. [2020-04-18 20:10:08,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:08,853 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2020-04-18 20:10:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2020-04-18 20:10:08,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:08,855 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1394187448] [2020-04-18 20:10:08,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:08,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 20:10:08,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1394187448] [2020-04-18 20:10:08,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 20:10:08,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:08,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:10:08,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-04-18 20:10:08,865 INFO L87 Difference]: Start difference. First operand 1274 states. Second operand 8 states. [2020-04-18 20:10:09,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:09,080 INFO L93 Difference]: Finished difference Result 1408 states and 3563 transitions. [2020-04-18 20:10:09,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 20:10:09,082 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-04-18 20:10:09,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:09,111 INFO L225 Difference]: With dead ends: 1408 [2020-04-18 20:10:09,111 INFO L226 Difference]: Without dead ends: 935 [2020-04-18 20:10:09,113 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:10:09,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2020-04-18 20:10:09,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 863. [2020-04-18 20:10:09,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2020-04-18 20:10:09,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 2155 transitions. [2020-04-18 20:10:09,229 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 2155 transitions. Word has length 29 [2020-04-18 20:10:09,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:09,230 INFO L479 AbstractCegarLoop]: Abstraction has 863 states and 2155 transitions. [2020-04-18 20:10:09,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 20:10:09,230 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 2155 transitions. [2020-04-18 20:10:09,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 20:10:09,233 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:09,234 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:10:09,234 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 20:10:09,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:09,234 INFO L82 PathProgramCache]: Analyzing trace with hash 447630108, now seen corresponding path program 1 times [2020-04-18 20:10:09,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:09,235 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2020735498] [2020-04-18 20:10:09,236 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:09,237 INFO L259 McrAutomatonBuilder]: Finished intersection with 36 states and 35 transitions. [2020-04-18 20:10:09,238 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-04-18 20:10:09,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 20:10:09,239 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:09,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:09,239 INFO L82 PathProgramCache]: Analyzing trace with hash 447630108, now seen corresponding path program 2 times [2020-04-18 20:10:09,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:09,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303580988] [2020-04-18 20:10:09,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:10:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:10:09,347 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:10:09,348 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:10:09,348 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:10:09,349 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 20:10:09,350 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-04-18 20:10:09,360 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,360 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,361 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,361 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,361 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,361 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,361 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,362 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,362 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,362 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,362 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,362 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,362 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,363 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,363 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,363 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,363 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,363 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,364 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,364 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,364 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,365 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,365 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,365 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,365 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,365 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,366 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,366 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,366 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,366 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,367 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,367 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,367 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,367 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,367 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,367 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,368 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,368 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,368 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,368 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,369 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,369 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,369 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,369 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,370 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,370 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,370 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,370 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,372 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,372 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,372 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,373 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,373 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,373 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,376 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,378 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,379 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,379 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,379 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,386 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,387 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,387 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,387 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,387 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:09,391 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 20:10:09,391 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:10:09,391 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:10:09,392 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:10:09,392 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:10:09,392 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:10:09,392 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:10:09,393 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:10:09,393 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:10:09,397 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 79 transitions, 182 flow [2020-04-18 20:10:09,972 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 9044 states. [2020-04-18 20:10:09,972 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states. [2020-04-18 20:10:09,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-04-18 20:10:09,973 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:09,974 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:10:09,974 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:09,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:09,975 INFO L82 PathProgramCache]: Analyzing trace with hash 224627827, now seen corresponding path program 1 times [2020-04-18 20:10:09,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:09,975 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1184224796] [2020-04-18 20:10:09,976 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:09,977 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 29 transitions. [2020-04-18 20:10:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-04-18 20:10:09,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-04-18 20:10:09,978 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:09,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:09,979 INFO L82 PathProgramCache]: Analyzing trace with hash 224627827, now seen corresponding path program 2 times [2020-04-18 20:10:09,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:09,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306763299] [2020-04-18 20:10:09,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:10,160 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 20:10:10,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306763299] [2020-04-18 20:10:10,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:10,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 20:10:10,161 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:10,164 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:10,168 INFO L259 McrAutomatonBuilder]: Finished intersection with 30 states and 29 transitions. [2020-04-18 20:10:10,169 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:10,256 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:10:10,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:10:10,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:10:10,257 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 8 states. [2020-04-18 20:10:10,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:10,422 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2020-04-18 20:10:10,422 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2020-04-18 20:10:10,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:10,424 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1184224796] [2020-04-18 20:10:10,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:10,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 20:10:10,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1184224796] [2020-04-18 20:10:10,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 20:10:10,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:10,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:10:10,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-04-18 20:10:10,426 INFO L87 Difference]: Start difference. First operand 9044 states. Second operand 8 states. [2020-04-18 20:10:10,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:10,798 INFO L93 Difference]: Finished difference Result 11824 states and 39861 transitions. [2020-04-18 20:10:10,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 20:10:10,798 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-04-18 20:10:10,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:10,878 INFO L225 Difference]: With dead ends: 11824 [2020-04-18 20:10:10,878 INFO L226 Difference]: Without dead ends: 8207 [2020-04-18 20:10:10,879 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:10:10,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8207 states. [2020-04-18 20:10:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8207 to 7352. [2020-04-18 20:10:11,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7352 states. [2020-04-18 20:10:11,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7352 states to 7352 states and 24692 transitions. [2020-04-18 20:10:11,193 INFO L78 Accepts]: Start accepts. Automaton has 7352 states and 24692 transitions. Word has length 29 [2020-04-18 20:10:11,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:11,193 INFO L479 AbstractCegarLoop]: Abstraction has 7352 states and 24692 transitions. [2020-04-18 20:10:11,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 20:10:11,193 INFO L276 IsEmpty]: Start isEmpty. Operand 7352 states and 24692 transitions. [2020-04-18 20:10:11,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:10:11,196 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:11,196 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:10:11,196 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:11,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:11,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1801700953, now seen corresponding path program 1 times [2020-04-18 20:10:11,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:11,197 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1096350332] [2020-04-18 20:10:11,198 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:11,205 INFO L259 McrAutomatonBuilder]: Finished intersection with 93 states and 146 transitions. [2020-04-18 20:10:11,206 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2020-04-18 20:10:11,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:10:11,208 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:11,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:11,208 INFO L82 PathProgramCache]: Analyzing trace with hash 2090161063, now seen corresponding path program 2 times [2020-04-18 20:10:11,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:11,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959355488] [2020-04-18 20:10:11,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:11,524 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 20:10:11,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959355488] [2020-04-18 20:10:11,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:11,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:10:11,526 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:11,529 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:11,548 INFO L259 McrAutomatonBuilder]: Finished intersection with 91 states and 142 transitions. [2020-04-18 20:10:11,548 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:11,764 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 13 times. [2020-04-18 20:10:11,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 20:10:11,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:10:11,765 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 13 states. [2020-04-18 20:10:12,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:12,240 INFO L93 Difference]: Finished difference Result 98 states and 150 transitions. [2020-04-18 20:10:12,240 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 150 transitions. [2020-04-18 20:10:12,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:10:12,241 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:10:12,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:12,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1801700953, now seen corresponding path program 3 times [2020-04-18 20:10:12,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:12,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712444286] [2020-04-18 20:10:12,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:10:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:10:12,313 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:10:12,313 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:10:12,314 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:10:12,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:10:12 BasicIcfg [2020-04-18 20:10:12,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:10:12,395 INFO L168 Benchmark]: Toolchain (without parser) took 5890.46 ms. Allocated memory was 138.4 MB in the beginning and 307.8 MB in the end (delta: 169.3 MB). Free memory was 100.6 MB in the beginning and 103.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 166.7 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:12,397 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 20:10:12,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.49 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 98.7 MB in the beginning and 160.7 MB in the end (delta: -62.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:12,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.94 ms. Allocated memory is still 201.9 MB. Free memory was 160.7 MB in the beginning and 158.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:12,405 INFO L168 Benchmark]: Boogie Preprocessor took 40.66 ms. Allocated memory is still 201.9 MB. Free memory was 158.7 MB in the beginning and 157.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:12,406 INFO L168 Benchmark]: RCFGBuilder took 432.62 ms. Allocated memory is still 201.9 MB. Free memory was 157.3 MB in the beginning and 136.4 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:12,407 INFO L168 Benchmark]: TraceAbstraction took 4640.32 ms. Allocated memory was 201.9 MB in the beginning and 307.8 MB in the end (delta: 105.9 MB). Free memory was 136.4 MB in the beginning and 103.3 MB in the end (delta: 33.1 MB). Peak memory consumption was 139.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:12,419 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 703.49 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 98.7 MB in the beginning and 160.7 MB in the end (delta: -62.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.94 ms. Allocated memory is still 201.9 MB. Free memory was 160.7 MB in the beginning and 158.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.66 ms. Allocated memory is still 201.9 MB. Free memory was 158.7 MB in the beginning and 157.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.62 ms. Allocated memory is still 201.9 MB. Free memory was 157.3 MB in the beginning and 136.4 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4640.32 ms. Allocated memory was 201.9 MB in the beginning and 307.8 MB in the end (delta: 105.9 MB). Free memory was 136.4 MB in the beginning and 103.3 MB in the end (delta: 33.1 MB). Peak memory consumption was 139.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 679]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L686] 0 volatile int x; VAL [x=0] [L687] 0 volatile int n; VAL [n=0, x=0] [L699] 0 pthread_t t1, t2; VAL [n=0, x=0] [L700] 0 int i; VAL [n=0, x=0] [L701] 0 x = 0 VAL [n=0, x=0] [L702] 0 n = __VERIFIER_nondet_int() VAL [n=1, x=0] [L675] COND FALSE 0 !(!cond) VAL [n=1, x=0] [L704] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L705] 0 i = 0 VAL [n=1, x=0] [L705] COND TRUE 0 i < n VAL [n=1, x=0] [L706] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L693] 2 int t; VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L694] 2 t = x VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=0] [L695] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L678] COND TRUE 1 !(cond) VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L679] 1 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 58 locations, 1 error locations. Started 2 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, HoareTripleCheckerStatistics: 198 SDtfs, 553 SDslu, 726 SDs, 0 SdLazy, 193 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9044occurred 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: 0.4s AutomataMinimizationTime, 2 MinimizatonAttempts, 927 StatesRemovedByMinimization, 2 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...