/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 23:02:12,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 23:02:12,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 23:02:12,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 23:02:12,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 23:02:12,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 23:02:12,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 23:02:12,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 23:02:12,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 23:02:12,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 23:02:12,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 23:02:12,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 23:02:12,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 23:02:12,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 23:02:12,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 23:02:12,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 23:02:12,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 23:02:12,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 23:02:12,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 23:02:12,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 23:02:12,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 23:02:12,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 23:02:12,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 23:02:12,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 23:02:12,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 23:02:12,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 23:02:12,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 23:02:12,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 23:02:12,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 23:02:12,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 23:02:12,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 23:02:12,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 23:02:12,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 23:02:12,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 23:02:12,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 23:02:12,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 23:02:12,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 23:02:12,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 23:02:12,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 23:02:12,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 23:02:12,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 23:02:12,088 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-VariableLbe.epf [2020-04-17 23:02:12,112 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 23:02:12,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 23:02:12,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 23:02:12,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 23:02:12,114 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 23:02:12,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 23:02:12,115 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 23:02:12,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 23:02:12,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 23:02:12,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 23:02:12,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 23:02:12,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 23:02:12,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 23:02:12,117 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 23:02:12,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 23:02:12,118 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 23:02:12,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 23:02:12,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 23:02:12,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 23:02:12,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 23:02:12,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 23:02:12,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 23:02:12,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 23:02:12,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 23:02:12,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 23:02:12,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 23:02:12,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 23:02:12,121 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-17 23:02:12,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 23:02:12,121 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 23:02:12,417 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 23:02:12,430 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 23:02:12,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 23:02:12,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 23:02:12,434 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 23:02:12,435 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i [2020-04-17 23:02:12,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d43d767/46caf63de41541da810aefc9c20add2f/FLAG7e0b85d22 [2020-04-17 23:02:13,077 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 23:02:13,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i [2020-04-17 23:02:13,090 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d43d767/46caf63de41541da810aefc9c20add2f/FLAG7e0b85d22 [2020-04-17 23:02:13,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d43d767/46caf63de41541da810aefc9c20add2f [2020-04-17 23:02:13,389 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 23:02:13,412 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 23:02:13,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 23:02:13,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 23:02:13,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 23:02:13,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 11:02:13" (1/1) ... [2020-04-17 23:02:13,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1392fd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:13, skipping insertion in model container [2020-04-17 23:02:13,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 11:02:13" (1/1) ... [2020-04-17 23:02:13,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 23:02:13,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 23:02:13,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 23:02:13,999 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 23:02:14,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 23:02:14,135 INFO L208 MainTranslator]: Completed translation [2020-04-17 23:02:14,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:14 WrapperNode [2020-04-17 23:02:14,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 23:02:14,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 23:02:14,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 23:02:14,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 23:02:14,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:14" (1/1) ... [2020-04-17 23:02:14,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:14" (1/1) ... [2020-04-17 23:02:14,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 23:02:14,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 23:02:14,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 23:02:14,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 23:02:14,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:14" (1/1) ... [2020-04-17 23:02:14,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:14" (1/1) ... [2020-04-17 23:02:14,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:14" (1/1) ... [2020-04-17 23:02:14,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:14" (1/1) ... [2020-04-17 23:02:14,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:14" (1/1) ... [2020-04-17 23:02:14,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:14" (1/1) ... [2020-04-17 23:02:14,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:14" (1/1) ... [2020-04-17 23:02:14,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 23:02:14,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 23:02:14,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 23:02:14,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 23:02:14,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:14" (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 [2020-04-17 23:02:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-17 23:02:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 23:02:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 23:02:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 23:02:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2020-04-17 23:02:14,340 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2020-04-17 23:02:14,340 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2020-04-17 23:02:14,340 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2020-04-17 23:02:14,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 23:02:14,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 23:02:14,342 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 23:02:14,923 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 23:02:14,923 INFO L295 CfgBuilder]: Removed 26 assume(true) statements. [2020-04-17 23:02:14,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 11:02:14 BoogieIcfgContainer [2020-04-17 23:02:14,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 23:02:14,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 23:02:14,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 23:02:14,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 23:02:14,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 11:02:13" (1/3) ... [2020-04-17 23:02:14,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131e5052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 11:02:14, skipping insertion in model container [2020-04-17 23:02:14,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:02:14" (2/3) ... [2020-04-17 23:02:14,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131e5052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 11:02:14, skipping insertion in model container [2020-04-17 23:02:14,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 11:02:14" (3/3) ... [2020-04-17 23:02:14,938 INFO L109 eAbstractionObserver]: Analyzing ICFG gcd-2.i [2020-04-17 23:02:14,949 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 23:02:14,950 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 23:02:14,959 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-04-17 23:02:14,960 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 23:02:14,990 WARN L315 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,990 WARN L315 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,990 WARN L315 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,991 WARN L315 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,991 WARN L315 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,991 WARN L315 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,992 WARN L315 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,992 WARN L315 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,992 WARN L315 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,992 WARN L315 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,993 WARN L315 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,993 WARN L315 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,997 WARN L315 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,998 WARN L315 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,998 WARN L315 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:14,998 WARN L315 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:15,002 WARN L315 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:15,003 WARN L315 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:15,003 WARN L315 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:15,003 WARN L315 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:02:15,036 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-17 23:02:15,062 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 23:02:15,063 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 23:02:15,063 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 23:02:15,063 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 23:02:15,063 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 23:02:15,063 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 23:02:15,064 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 23:02:15,064 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 23:02:15,087 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 118 transitions, 258 flow [2020-04-17 23:02:15,092 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 111 places, 118 transitions, 258 flow [2020-04-17 23:02:15,162 INFO L129 PetriNetUnfolder]: 13/118 cut-off events. [2020-04-17 23:02:15,163 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-17 23:02:15,168 INFO L80 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 118 events. 13/118 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 68. Up to 3 conditions per place. [2020-04-17 23:02:15,171 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 111 places, 118 transitions, 258 flow [2020-04-17 23:02:15,204 INFO L129 PetriNetUnfolder]: 13/118 cut-off events. [2020-04-17 23:02:15,205 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-17 23:02:15,209 INFO L80 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 118 events. 13/118 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 68. Up to 3 conditions per place. [2020-04-17 23:02:15,211 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 280 [2020-04-17 23:02:15,216 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-17 23:02:15,804 WARN L192 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 21 [2020-04-17 23:02:16,233 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 21 [2020-04-17 23:02:17,828 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2020-04-17 23:02:18,506 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-04-17 23:02:19,453 WARN L192 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2020-04-17 23:02:19,698 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-04-17 23:02:20,127 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-04-17 23:02:21,008 WARN L192 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-04-17 23:02:23,003 WARN L192 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-04-17 23:02:23,286 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-04-17 23:02:23,404 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-04-17 23:02:23,686 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-04-17 23:02:23,937 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-04-17 23:02:28,417 WARN L192 SmtUtils]: Spent 4.40 s on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2020-04-17 23:02:29,787 WARN L192 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 59 [2020-04-17 23:02:30,059 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-04-17 23:02:30,166 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-04-17 23:02:30,564 WARN L192 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2020-04-17 23:02:30,709 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-04-17 23:02:30,724 INFO L206 etLargeBlockEncoding]: Checked pairs total: 452 [2020-04-17 23:02:30,724 INFO L214 etLargeBlockEncoding]: Total number of compositions: 120 [2020-04-17 23:02:30,728 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 26 transitions, 74 flow [2020-04-17 23:02:30,738 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 72 states. [2020-04-17 23:02:30,740 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-04-17 23:02:30,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 23:02:30,748 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:02:30,749 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 23:02:30,749 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:02:30,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:02:30,756 INFO L82 PathProgramCache]: Analyzing trace with hash -2074023422, now seen corresponding path program 1 times [2020-04-17 23:02:30,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:02:30,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34980978] [2020-04-17 23:02:30,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:02:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:02:31,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 23:02:31,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34980978] [2020-04-17 23:02:31,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 23:02:31,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-17 23:02:31,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859602749] [2020-04-17 23:02:31,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 23:02:31,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:02:31,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 23:02:31,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 23:02:31,054 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 5 states. [2020-04-17 23:02:31,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:02:31,187 INFO L93 Difference]: Finished difference Result 72 states and 152 transitions. [2020-04-17 23:02:31,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 23:02:31,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-04-17 23:02:31,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:02:31,200 INFO L225 Difference]: With dead ends: 72 [2020-04-17 23:02:31,201 INFO L226 Difference]: Without dead ends: 59 [2020-04-17 23:02:31,202 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 23:02:31,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-04-17 23:02:31,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-04-17 23:02:31,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-04-17 23:02:31,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 127 transitions. [2020-04-17 23:02:31,240 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 127 transitions. Word has length 15 [2020-04-17 23:02:31,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:02:31,240 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 127 transitions. [2020-04-17 23:02:31,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 23:02:31,241 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 127 transitions. [2020-04-17 23:02:31,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 23:02:31,242 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:02:31,242 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 23:02:31,243 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:02:31,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:02:31,243 INFO L82 PathProgramCache]: Analyzing trace with hash -2045395232, now seen corresponding path program 1 times [2020-04-17 23:02:31,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:02:31,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882622541] [2020-04-17 23:02:31,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:02:31,269 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-04-17 23:02:31,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333585077] [2020-04-17 23:02:31,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 23:02:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:02:31,343 INFO L264 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 24 conjunts are in the unsatisfiable core [2020-04-17 23:02:31,348 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 23:02:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 23:02:31,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882622541] [2020-04-17 23:02:31,372 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-04-17 23:02:31,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333585077] [2020-04-17 23:02:31,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 23:02:31,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 23:02:31,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644757257] [2020-04-17 23:02:31,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 23:02:31,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:02:31,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 23:02:31,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 23:02:31,376 INFO L87 Difference]: Start difference. First operand 59 states and 127 transitions. Second operand 4 states. [2020-04-17 23:02:31,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:02:31,487 INFO L93 Difference]: Finished difference Result 111 states and 235 transitions. [2020-04-17 23:02:31,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 23:02:31,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-04-17 23:02:31,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:02:31,489 INFO L225 Difference]: With dead ends: 111 [2020-04-17 23:02:31,489 INFO L226 Difference]: Without dead ends: 111 [2020-04-17 23:02:31,491 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 23:02:31,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-04-17 23:02:31,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 107. [2020-04-17 23:02:31,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-04-17 23:02:31,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 230 transitions. [2020-04-17 23:02:31,511 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 230 transitions. Word has length 15 [2020-04-17 23:02:31,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:02:31,511 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 230 transitions. [2020-04-17 23:02:31,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 23:02:31,511 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 230 transitions. [2020-04-17 23:02:31,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 23:02:31,513 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:02:31,513 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 23:02:31,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 23:02:31,716 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:02:31,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:02:31,717 INFO L82 PathProgramCache]: Analyzing trace with hash -2045395231, now seen corresponding path program 1 times [2020-04-17 23:02:31,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:02:31,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136835729] [2020-04-17 23:02:31,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:02:31,739 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-04-17 23:02:31,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481170011] [2020-04-17 23:02:31,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 23:02:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:02:31,830 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 22 conjunts are in the unsatisfiable core [2020-04-17 23:02:31,832 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 23:02:31,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 23:02:31,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136835729] [2020-04-17 23:02:31,845 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-04-17 23:02:31,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481170011] [2020-04-17 23:02:31,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 23:02:31,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 23:02:31,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774840943] [2020-04-17 23:02:31,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 23:02:31,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:02:31,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 23:02:31,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:02:31,847 INFO L87 Difference]: Start difference. First operand 107 states and 230 transitions. Second operand 3 states. [2020-04-17 23:02:33,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:02:33,091 INFO L93 Difference]: Finished difference Result 146 states and 305 transitions. [2020-04-17 23:02:33,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 23:02:33,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-04-17 23:02:33,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:02:33,093 INFO L225 Difference]: With dead ends: 146 [2020-04-17 23:02:33,093 INFO L226 Difference]: Without dead ends: 118 [2020-04-17 23:02:33,094 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:02:33,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-04-17 23:02:33,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 111. [2020-04-17 23:02:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-04-17 23:02:33,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 237 transitions. [2020-04-17 23:02:33,112 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 237 transitions. Word has length 15 [2020-04-17 23:02:33,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:02:33,112 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 237 transitions. [2020-04-17 23:02:33,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 23:02:33,113 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 237 transitions. [2020-04-17 23:02:33,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 23:02:33,114 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:02:33,114 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 23:02:33,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 23:02:33,318 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:02:33,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:02:33,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1459268914, now seen corresponding path program 1 times [2020-04-17 23:02:33,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:02:33,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934836196] [2020-04-17 23:02:33,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:02:33,342 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-04-17 23:02:33,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437064310] [2020-04-17 23:02:33,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 23:02:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:02:47,500 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 37 conjunts are in the unsatisfiable core [2020-04-17 23:02:47,501 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 23:02:47,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 23:02:49,697 WARN L192 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2020-04-17 23:02:49,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 23:02:49,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934836196] [2020-04-17 23:02:49,704 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-04-17 23:02:49,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437064310] [2020-04-17 23:02:49,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-17 23:02:49,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-17 23:02:49,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578855479] [2020-04-17 23:02:49,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 23:02:49,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:02:49,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 23:02:49,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 23:02:49,706 INFO L87 Difference]: Start difference. First operand 111 states and 237 transitions. Second operand 5 states. [2020-04-17 23:02:52,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:02:52,431 INFO L93 Difference]: Finished difference Result 157 states and 323 transitions. [2020-04-17 23:02:52,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 23:02:52,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-04-17 23:02:52,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:02:52,435 INFO L225 Difference]: With dead ends: 157 [2020-04-17 23:02:52,435 INFO L226 Difference]: Without dead ends: 125 [2020-04-17 23:02:52,436 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 23:02:52,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-04-17 23:02:52,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2020-04-17 23:02:52,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-04-17 23:02:52,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 266 transitions. [2020-04-17 23:02:52,446 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 266 transitions. Word has length 17 [2020-04-17 23:02:52,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:02:52,446 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 266 transitions. [2020-04-17 23:02:52,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 23:02:52,447 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 266 transitions. [2020-04-17 23:02:52,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 23:02:52,448 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:02:52,448 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 23:02:52,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 23:02:52,654 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:02:52,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:02:52,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1133266276, now seen corresponding path program 1 times [2020-04-17 23:02:52,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:02:52,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121529432] [2020-04-17 23:02:52,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:02:52,675 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-04-17 23:02:52,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [549943031] [2020-04-17 23:02:52,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 23:02:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:02:52,740 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 22 conjunts are in the unsatisfiable core [2020-04-17 23:02:52,741 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 23:02:52,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-04-17 23:02:52,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121529432] [2020-04-17 23:02:52,779 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-04-17 23:02:52,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549943031] [2020-04-17 23:02:52,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 23:02:52,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 23:02:52,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265511970] [2020-04-17 23:02:52,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 23:02:52,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:02:52,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 23:02:52,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 23:02:52,784 INFO L87 Difference]: Start difference. First operand 123 states and 266 transitions. Second operand 4 states. [2020-04-17 23:02:52,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:02:52,886 INFO L93 Difference]: Finished difference Result 153 states and 325 transitions. [2020-04-17 23:02:52,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 23:02:52,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-17 23:02:52,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:02:52,888 INFO L225 Difference]: With dead ends: 153 [2020-04-17 23:02:52,888 INFO L226 Difference]: Without dead ends: 153 [2020-04-17 23:02:52,888 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 23:02:52,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-04-17 23:02:52,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 141. [2020-04-17 23:02:52,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-04-17 23:02:52,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 312 transitions. [2020-04-17 23:02:52,904 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 312 transitions. Word has length 17 [2020-04-17 23:02:52,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:02:52,905 INFO L479 AbstractCegarLoop]: Abstraction has 141 states and 312 transitions. [2020-04-17 23:02:52,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 23:02:52,906 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 312 transitions. [2020-04-17 23:02:52,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 23:02:52,908 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:02:52,908 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 23:02:53,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 23:02:53,112 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:02:53,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:02:53,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1133266279, now seen corresponding path program 1 times [2020-04-17 23:02:53,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:02:53,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438548993] [2020-04-17 23:02:53,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:02:53,131 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-04-17 23:02:53,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1258442422] [2020-04-17 23:02:53,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 23:03:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2020-04-17 23:03:02,685 WARN L168 FreeRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility [2020-04-17 23:03:02,685 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-17 23:03:02,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 23:03:02,892 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArrayIndexOutOfBoundsException: 0 at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.petrinetlbe.PetriNetLargeBlockEncoding.translateExecution(PetriNetLargeBlockEncoding.java:571) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getRcfgProgramExecution(BasicCegarLoop.java:1166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-04-17 23:03:02,896 INFO L168 Benchmark]: Toolchain (without parser) took 49504.89 ms. Allocated memory was 140.5 MB in the beginning and 295.7 MB in the end (delta: 155.2 MB). Free memory was 100.3 MB in the beginning and 173.3 MB in the end (delta: -73.0 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2020-04-17 23:03:02,896 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-17 23:03:02,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.48 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 98.4 MB in the beginning and 158.8 MB in the end (delta: -60.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-04-17 23:03:02,902 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.43 ms. Allocated memory is still 201.9 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 23:03:02,905 INFO L168 Benchmark]: Boogie Preprocessor took 57.58 ms. Allocated memory is still 201.9 MB. Free memory was 156.1 MB in the beginning and 154.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 23:03:02,906 INFO L168 Benchmark]: RCFGBuilder took 658.02 ms. Allocated memory is still 201.9 MB. Free memory was 154.1 MB in the beginning and 122.2 MB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2020-04-17 23:03:02,907 INFO L168 Benchmark]: TraceAbstraction took 47964.27 ms. Allocated memory was 201.9 MB in the beginning and 295.7 MB in the end (delta: 93.8 MB). Free memory was 121.6 MB in the beginning and 173.3 MB in the end (delta: -51.7 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. [2020-04-17 23:03:02,914 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.48 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 98.4 MB in the beginning and 158.8 MB in the end (delta: -60.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 75.43 ms. Allocated memory is still 201.9 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.58 ms. Allocated memory is still 201.9 MB. Free memory was 156.1 MB in the beginning and 154.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 658.02 ms. Allocated memory is still 201.9 MB. Free memory was 154.1 MB in the beginning and 122.2 MB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 47964.27 ms. Allocated memory was 201.9 MB in the beginning and 295.7 MB in the end (delta: 93.8 MB). Free memory was 121.6 MB in the beginning and 173.3 MB in the end (delta: -51.7 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 15.6s, 111 ProgramPointsBefore, 29 ProgramPointsAfterwards, 118 TransitionsBefore, 26 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 8 FixpointIterations, 83 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 29 TrivialYvCompositions, 4 ConcurrentYvCompositions, 10 ChoiceCompositions, 108 VarBasedMoverChecksPositive, 7 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 452 CheckedPairsTotal, 120 TotalNumberOfCompositions - ExceptionOrErrorResult: ArrayIndexOutOfBoundsException: 0 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArrayIndexOutOfBoundsException: 0: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.petrinetlbe.PetriNetLargeBlockEncoding.translateExecution(PetriNetLargeBlockEncoding.java:571) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...