/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:51:30,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:51:30,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:51:30,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:51:30,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:51:30,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:51:30,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:51:30,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:51:30,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:51:30,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:51:30,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:51:30,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:51:30,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:51:30,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:51:30,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:51:30,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:51:30,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:51:30,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:51:30,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:51:30,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:51:30,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:51:30,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:51:30,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:51:30,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:51:30,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 22:51:30,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 22:51:30,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 22:51:30,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 22:51:30,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 22:51:30,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 22:51:30,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:51:30,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:51:30,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:51:30,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:51:30,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:51:30,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:51:30,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:51:30,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:51:30,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:51:30,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:51:30,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:51:30,060 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-MCR.epf [2019-12-27 22:51:30,081 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:51:30,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:51:30,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:51:30,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:51:30,084 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:51:30,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:51:30,085 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:51:30,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:51:30,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:51:30,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:51:30,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:51:30,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:51:30,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:51:30,087 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:51:30,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:51:30,087 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:51:30,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:51:30,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:51:30,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:51:30,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:51:30,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:51:30,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:51:30,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:51:30,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:51:30,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:51:30,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:51:30,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:51:30,090 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:51:30,090 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:51:30,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:51:30,091 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:51:30,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:51:30,375 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:51:30,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:51:30,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:51:30,393 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:51:30,393 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:51:30,394 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2019-12-27 22:51:30,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e02ca8718/4af26abda573411480400b24537486e4/FLAGec75cd91d [2019-12-27 22:51:31,087 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:51:31,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2019-12-27 22:51:31,101 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e02ca8718/4af26abda573411480400b24537486e4/FLAGec75cd91d [2019-12-27 22:51:31,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e02ca8718/4af26abda573411480400b24537486e4 [2019-12-27 22:51:31,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:51:31,407 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:51:31,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:51:31,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:51:31,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:51:31,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:51:31" (1/1) ... [2019-12-27 22:51:31,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4feccf86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:31, skipping insertion in model container [2019-12-27 22:51:31,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:51:31" (1/1) ... [2019-12-27 22:51:31,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:51:31,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:51:32,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:51:32,032 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:51:32,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:51:32,167 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:51:32,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:32 WrapperNode [2019-12-27 22:51:32,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:51:32,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:51:32,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:51:32,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:51:32,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:32" (1/1) ... [2019-12-27 22:51:32,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:32" (1/1) ... [2019-12-27 22:51:32,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:51:32,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:51:32,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:51:32,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:51:32,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:32" (1/1) ... [2019-12-27 22:51:32,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:32" (1/1) ... [2019-12-27 22:51:32,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:32" (1/1) ... [2019-12-27 22:51:32,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:32" (1/1) ... [2019-12-27 22:51:32,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:32" (1/1) ... [2019-12-27 22:51:32,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:32" (1/1) ... [2019-12-27 22:51:32,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:32" (1/1) ... [2019-12-27 22:51:32,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:51:32,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:51:32,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:51:32,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:51:32,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:51:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:51:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:51:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:51:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:51:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:51:32,336 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:51:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:51:32,336 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:51:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:51:32,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:51:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-27 22:51:32,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-27 22:51:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:51:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:51:32,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:51:32,339 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 22:51:32,739 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:51:32,740 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:51:32,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:51:32 BoogieIcfgContainer [2019-12-27 22:51:32,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:51:32,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:51:32,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:51:32,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:51:32,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:51:31" (1/3) ... [2019-12-27 22:51:32,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f87f307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:51:32, skipping insertion in model container [2019-12-27 22:51:32,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:32" (2/3) ... [2019-12-27 22:51:32,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f87f307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:51:32, skipping insertion in model container [2019-12-27 22:51:32,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:51:32" (3/3) ... [2019-12-27 22:51:32,751 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2019-12-27 22:51:32,762 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:51:32,762 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:51:32,770 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:51:32,772 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:51:32,804 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,804 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,805 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,805 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,806 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,806 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,806 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,807 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,807 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,807 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,808 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,808 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,808 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,808 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,809 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,809 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,809 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,810 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,810 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,810 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,811 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,811 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,811 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,812 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,816 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,816 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,817 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,817 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,824 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,825 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,826 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,826 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,839 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,840 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,840 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,841 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,844 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,844 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,844 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,844 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:32,862 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 22:51:32,884 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:51:32,884 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:51:32,884 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:51:32,884 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:51:32,885 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:51:32,885 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:51:32,885 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:51:32,885 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:51:32,900 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 65 transitions [2019-12-27 22:51:32,902 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 77 places, 65 transitions [2019-12-27 22:51:32,950 INFO L132 PetriNetUnfolder]: 1/61 cut-off events. [2019-12-27 22:51:32,951 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:51:32,957 INFO L76 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 28 event pairs. 0/59 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-27 22:51:32,961 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 77 places, 65 transitions [2019-12-27 22:51:32,983 INFO L132 PetriNetUnfolder]: 1/61 cut-off events. [2019-12-27 22:51:32,983 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:51:32,985 INFO L76 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 28 event pairs. 0/59 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-27 22:51:32,988 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 732 [2019-12-27 22:51:32,991 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:51:34,421 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 22:51:34,589 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-12-27 22:51:34,629 INFO L206 etLargeBlockEncoding]: Checked pairs total: 687 [2019-12-27 22:51:34,629 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2019-12-27 22:51:34,633 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 21 transitions [2019-12-27 22:51:34,647 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 110 states. [2019-12-27 22:51:34,649 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2019-12-27 22:51:34,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:51:34,662 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:51:34,663 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:51:34,663 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:51:34,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:51:34,671 INFO L82 PathProgramCache]: Analyzing trace with hash -162708018, now seen corresponding path program 1 times [2019-12-27 22:51:34,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:51:34,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477356182] [2019-12-27 22:51:34,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:51:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:51:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:51:35,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477356182] [2019-12-27 22:51:35,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:51:35,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:51:35,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [921254113] [2019-12-27 22:51:35,012 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:51:35,021 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:51:35,050 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 22:51:35,051 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:51:35,054 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:51:35,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:51:35,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:51:35,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:51:35,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:51:35,068 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 3 states. [2019-12-27 22:51:35,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:51:35,094 INFO L93 Difference]: Finished difference Result 102 states and 260 transitions. [2019-12-27 22:51:35,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:51:35,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:51:35,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:51:35,123 INFO L225 Difference]: With dead ends: 102 [2019-12-27 22:51:35,123 INFO L226 Difference]: Without dead ends: 70 [2019-12-27 22:51:35,126 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:51:35,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-12-27 22:51:35,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-12-27 22:51:35,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-27 22:51:35,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 164 transitions. [2019-12-27 22:51:35,170 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 164 transitions. Word has length 10 [2019-12-27 22:51:35,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:51:35,171 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 164 transitions. [2019-12-27 22:51:35,172 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:51:35,172 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 164 transitions. [2019-12-27 22:51:35,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:51:35,177 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:51:35,177 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:51:35,177 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:51:35,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:51:35,178 INFO L82 PathProgramCache]: Analyzing trace with hash -740821623, now seen corresponding path program 1 times [2019-12-27 22:51:35,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:51:35,179 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194135820] [2019-12-27 22:51:35,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:51:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:51:35,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:51:35,301 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194135820] [2019-12-27 22:51:35,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:51:35,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:51:35,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [883590471] [2019-12-27 22:51:35,302 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:51:35,303 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:51:35,306 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:51:35,306 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:51:35,307 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:51:35,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:51:35,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:51:35,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:51:35,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:51:35,309 INFO L87 Difference]: Start difference. First operand 70 states and 164 transitions. Second operand 4 states. [2019-12-27 22:51:35,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:51:35,351 INFO L93 Difference]: Finished difference Result 78 states and 170 transitions. [2019-12-27 22:51:35,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:51:35,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:51:35,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:51:35,353 INFO L225 Difference]: With dead ends: 78 [2019-12-27 22:51:35,353 INFO L226 Difference]: Without dead ends: 54 [2019-12-27 22:51:35,354 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:51:35,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-12-27 22:51:35,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-12-27 22:51:35,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-12-27 22:51:35,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 110 transitions. [2019-12-27 22:51:35,369 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 110 transitions. Word has length 11 [2019-12-27 22:51:35,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:51:35,369 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 110 transitions. [2019-12-27 22:51:35,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:51:35,370 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 110 transitions. [2019-12-27 22:51:35,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 22:51:35,372 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:51:35,372 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:51:35,372 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:51:35,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:51:35,373 INFO L82 PathProgramCache]: Analyzing trace with hash -519872831, now seen corresponding path program 1 times [2019-12-27 22:51:35,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:51:35,373 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459158989] [2019-12-27 22:51:35,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:51:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:51:35,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:51:35,425 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459158989] [2019-12-27 22:51:35,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:51:35,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:51:35,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1170228923] [2019-12-27 22:51:35,426 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:51:35,428 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:51:35,430 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 19 states and 24 transitions. [2019-12-27 22:51:35,431 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:51:35,431 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:51:35,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:51:35,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:51:35,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:51:35,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:51:35,432 INFO L87 Difference]: Start difference. First operand 54 states and 110 transitions. Second operand 3 states. [2019-12-27 22:51:35,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:51:35,438 INFO L93 Difference]: Finished difference Result 52 states and 105 transitions. [2019-12-27 22:51:35,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:51:35,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-27 22:51:35,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:51:35,440 INFO L225 Difference]: With dead ends: 52 [2019-12-27 22:51:35,440 INFO L226 Difference]: Without dead ends: 52 [2019-12-27 22:51:35,441 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:51:35,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-12-27 22:51:35,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-12-27 22:51:35,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-27 22:51:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 105 transitions. [2019-12-27 22:51:35,448 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 105 transitions. Word has length 12 [2019-12-27 22:51:35,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:51:35,448 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 105 transitions. [2019-12-27 22:51:35,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:51:35,448 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 105 transitions. [2019-12-27 22:51:35,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-27 22:51:35,449 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:51:35,449 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:51:35,450 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:51:35,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:51:35,450 INFO L82 PathProgramCache]: Analyzing trace with hash -349293673, now seen corresponding path program 1 times [2019-12-27 22:51:35,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:51:35,451 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503275639] [2019-12-27 22:51:35,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:51:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:51:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:51:35,521 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503275639] [2019-12-27 22:51:35,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:51:35,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:51:35,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [27947129] [2019-12-27 22:51:35,522 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:51:35,527 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:51:35,535 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 37 transitions. [2019-12-27 22:51:35,536 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:51:35,570 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 22:51:35,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 22:51:35,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:51:35,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 22:51:35,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:51:35,572 INFO L87 Difference]: Start difference. First operand 52 states and 105 transitions. Second operand 5 states. [2019-12-27 22:51:35,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:51:35,605 INFO L93 Difference]: Finished difference Result 57 states and 110 transitions. [2019-12-27 22:51:35,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:51:35,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-12-27 22:51:35,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:51:35,608 INFO L225 Difference]: With dead ends: 57 [2019-12-27 22:51:35,608 INFO L226 Difference]: Without dead ends: 33 [2019-12-27 22:51:35,609 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 22:51:35,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-27 22:51:35,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-27 22:51:35,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 22:51:35,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 54 transitions. [2019-12-27 22:51:35,619 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 54 transitions. Word has length 13 [2019-12-27 22:51:35,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:51:35,620 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 54 transitions. [2019-12-27 22:51:35,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 22:51:35,620 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 54 transitions. [2019-12-27 22:51:35,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 22:51:35,623 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:51:35,624 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:51:35,625 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:51:35,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:51:35,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1381593674, now seen corresponding path program 1 times [2019-12-27 22:51:35,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:51:35,626 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860313693] [2019-12-27 22:51:35,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:51:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:51:35,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:51:35,699 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860313693] [2019-12-27 22:51:35,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:51:35,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:51:35,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [354575457] [2019-12-27 22:51:35,700 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:51:35,701 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:51:35,705 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 21 states and 26 transitions. [2019-12-27 22:51:35,706 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:51:35,706 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:51:35,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:51:35,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:51:35,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:51:35,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:51:35,707 INFO L87 Difference]: Start difference. First operand 33 states and 54 transitions. Second operand 4 states. [2019-12-27 22:51:35,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:51:35,727 INFO L93 Difference]: Finished difference Result 37 states and 58 transitions. [2019-12-27 22:51:35,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:51:35,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-27 22:51:35,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:51:35,729 INFO L225 Difference]: With dead ends: 37 [2019-12-27 22:51:35,729 INFO L226 Difference]: Without dead ends: 19 [2019-12-27 22:51:35,729 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:51:35,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-27 22:51:35,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-27 22:51:35,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-27 22:51:35,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-12-27 22:51:35,732 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 14 [2019-12-27 22:51:35,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:51:35,732 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-12-27 22:51:35,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:51:35,733 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-12-27 22:51:35,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 22:51:35,733 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:51:35,734 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:51:35,734 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:51:35,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:51:35,734 INFO L82 PathProgramCache]: Analyzing trace with hash -554728090, now seen corresponding path program 2 times [2019-12-27 22:51:35,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:51:35,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876852050] [2019-12-27 22:51:35,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:51:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:51:35,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:51:35,797 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876852050] [2019-12-27 22:51:35,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:51:35,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:51:35,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1691311473] [2019-12-27 22:51:35,798 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:51:35,801 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:51:35,804 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 14 transitions. [2019-12-27 22:51:35,805 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:51:35,807 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:51:35,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:51:35,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:51:35,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:51:35,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:51:35,808 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 4 states. [2019-12-27 22:51:35,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:51:35,828 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2019-12-27 22:51:35,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:51:35,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-27 22:51:35,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:51:35,829 INFO L225 Difference]: With dead ends: 18 [2019-12-27 22:51:35,829 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:51:35,829 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:51:35,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:51:35,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:51:35,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:51:35,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:51:35,830 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-12-27 22:51:35,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:51:35,831 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:51:35,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:51:35,831 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:51:35,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:51:35,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:51:35 BasicIcfg [2019-12-27 22:51:35,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:51:35,838 INFO L168 Benchmark]: Toolchain (without parser) took 4430.88 ms. Allocated memory was 136.8 MB in the beginning and 252.2 MB in the end (delta: 115.3 MB). Free memory was 99.7 MB in the beginning and 106.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 108.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:51:35,839 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 22:51:35,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.95 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.5 MB in the beginning and 156.7 MB in the end (delta: -57.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-12-27 22:51:35,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.56 ms. Allocated memory is still 200.8 MB. Free memory was 156.7 MB in the beginning and 154.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:51:35,841 INFO L168 Benchmark]: Boogie Preprocessor took 35.77 ms. Allocated memory is still 200.8 MB. Free memory was 154.7 MB in the beginning and 153.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:51:35,842 INFO L168 Benchmark]: RCFGBuilder took 478.02 ms. Allocated memory is still 200.8 MB. Free memory was 153.3 MB in the beginning and 131.0 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:51:35,843 INFO L168 Benchmark]: TraceAbstraction took 3092.74 ms. Allocated memory was 200.8 MB in the beginning and 252.2 MB in the end (delta: 51.4 MB). Free memory was 130.4 MB in the beginning and 106.1 MB in the end (delta: 24.2 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. [2019-12-27 22:51:35,847 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 759.95 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.5 MB in the beginning and 156.7 MB in the end (delta: -57.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.56 ms. Allocated memory is still 200.8 MB. Free memory was 156.7 MB in the beginning and 154.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.77 ms. Allocated memory is still 200.8 MB. Free memory was 154.7 MB in the beginning and 153.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 478.02 ms. Allocated memory is still 200.8 MB. Free memory was 153.3 MB in the beginning and 131.0 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3092.74 ms. Allocated memory was 200.8 MB in the beginning and 252.2 MB in the end (delta: 51.4 MB). Free memory was 130.4 MB in the beginning and 106.1 MB in the end (delta: 24.2 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 77 ProgramPointsBefore, 28 ProgramPointsAfterwards, 65 TransitionsBefore, 21 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 0 ChoiceCompositions, 361 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 687 CheckedPairsTotal, 54 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 86 SDtfs, 45 SDslu, 82 SDs, 0 SdLazy, 36 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 2014 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...