/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 00:59:44,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 00:59:44,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 00:59:44,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 00:59:44,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 00:59:44,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 00:59:44,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 00:59:44,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 00:59:44,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 00:59:44,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 00:59:44,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 00:59:44,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 00:59:44,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 00:59:44,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 00:59:44,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 00:59:44,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 00:59:44,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 00:59:44,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 00:59:44,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 00:59:44,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 00:59:44,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 00:59:44,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 00:59:44,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 00:59:44,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 00:59:44,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 00:59:44,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 00:59:44,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 00:59:44,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 00:59:44,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 00:59:44,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 00:59:44,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 00:59:44,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 00:59:44,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 00:59:44,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 00:59:44,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 00:59:44,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 00:59:44,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 00:59:44,327 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 00:59:44,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 00:59:44,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 00:59:44,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 00:59:44,329 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 00:59:44,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 00:59:44,330 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 00:59:44,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 00:59:44,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 00:59:44,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 00:59:44,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 00:59:44,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 00:59:44,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 00:59:44,332 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 00:59:44,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 00:59:44,333 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 00:59:44,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 00:59:44,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 00:59:44,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 00:59:44,334 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 00:59:44,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 00:59:44,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:59:44,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 00:59:44,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 00:59:44,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 00:59:44,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 00:59:44,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 00:59:44,336 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 00:59:44,336 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 00:59:44,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 00:59:44,336 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 00:59:44,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 00:59:44,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 00:59:44,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 00:59:44,678 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 00:59:44,679 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 00:59:44,679 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2020-10-06 00:59:44,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8981114b/4427429bf6574d5e9ddd8ad5464c137b/FLAG97b9a38dc [2020-10-06 00:59:45,271 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 00:59:45,272 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2020-10-06 00:59:45,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8981114b/4427429bf6574d5e9ddd8ad5464c137b/FLAG97b9a38dc [2020-10-06 00:59:45,627 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8981114b/4427429bf6574d5e9ddd8ad5464c137b [2020-10-06 00:59:45,636 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 00:59:45,637 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 00:59:45,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 00:59:45,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 00:59:45,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 00:59:45,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:59:45" (1/1) ... [2020-10-06 00:59:45,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1fd713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:45, skipping insertion in model container [2020-10-06 00:59:45,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:59:45" (1/1) ... [2020-10-06 00:59:45,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 00:59:45,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 00:59:46,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:59:46,160 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 00:59:46,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:59:46,301 INFO L208 MainTranslator]: Completed translation [2020-10-06 00:59:46,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:46 WrapperNode [2020-10-06 00:59:46,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 00:59:46,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 00:59:46,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 00:59:46,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 00:59:46,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:46" (1/1) ... [2020-10-06 00:59:46,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:46" (1/1) ... [2020-10-06 00:59:46,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 00:59:46,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 00:59:46,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 00:59:46,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 00:59:46,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:46" (1/1) ... [2020-10-06 00:59:46,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:46" (1/1) ... [2020-10-06 00:59:46,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:46" (1/1) ... [2020-10-06 00:59:46,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:46" (1/1) ... [2020-10-06 00:59:46,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:46" (1/1) ... [2020-10-06 00:59:46,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:46" (1/1) ... [2020-10-06 00:59:46,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:46" (1/1) ... [2020-10-06 00:59:46,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 00:59:46,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 00:59:46,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 00:59:46,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 00:59:46,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:59:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 00:59:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 00:59:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 00:59:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 00:59:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 00:59:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 00:59:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 00:59:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 00:59:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 00:59:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 00:59:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 00:59:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 00:59:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 00:59:46,454 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 00:59:46,862 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 00:59:46,863 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 00:59:46,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:59:46 BoogieIcfgContainer [2020-10-06 00:59:46,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 00:59:46,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 00:59:46,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 00:59:46,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 00:59:46,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 12:59:45" (1/3) ... [2020-10-06 00:59:46,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757441ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:59:46, skipping insertion in model container [2020-10-06 00:59:46,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:59:46" (2/3) ... [2020-10-06 00:59:46,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757441ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:59:46, skipping insertion in model container [2020-10-06 00:59:46,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:59:46" (3/3) ... [2020-10-06 00:59:46,875 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2020-10-06 00:59:46,886 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 00:59:46,886 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 00:59:46,893 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 00:59:46,894 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 00:59:46,933 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,934 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,935 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,936 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,936 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,937 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,938 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,938 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,938 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,939 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,939 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,940 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,941 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,941 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,941 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,942 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,943 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,953 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,953 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,962 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,962 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,962 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,962 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:59:46,985 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 00:59:47,005 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 00:59:47,005 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 00:59:47,005 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 00:59:47,005 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 00:59:47,006 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 00:59:47,006 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 00:59:47,006 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 00:59:47,006 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 00:59:47,024 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-06 00:59:47,026 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-06 00:59:47,075 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-06 00:59:47,075 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:59:47,080 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 00:59:47,083 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-06 00:59:47,106 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-06 00:59:47,107 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:59:47,108 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 00:59:47,110 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-06 00:59:47,111 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 00:59:48,410 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-06 00:59:48,572 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-10-06 00:59:48,615 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-10-06 00:59:48,616 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-10-06 00:59:48,620 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-06 00:59:48,646 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-06 00:59:48,649 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-06 00:59:48,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 00:59:48,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:48,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:48,658 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:48,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:48,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-10-06 00:59:48,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:48,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017838803] [2020-10-06 00:59:48,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:48,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:48,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017838803] [2020-10-06 00:59:48,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:48,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:59:48,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1014190257] [2020-10-06 00:59:48,947 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:48,951 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:48,967 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 00:59:48,968 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:48,974 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:48,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:59:48,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:48,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:59:48,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:59:48,995 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-06 00:59:49,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:49,043 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-10-06 00:59:49,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:59:49,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-06 00:59:49,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:49,060 INFO L225 Difference]: With dead ends: 266 [2020-10-06 00:59:49,061 INFO L226 Difference]: Without dead ends: 202 [2020-10-06 00:59:49,062 INFO L675 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 [2020-10-06 00:59:49,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-06 00:59:49,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-06 00:59:49,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-06 00:59:49,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-06 00:59:49,122 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-10-06 00:59:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:49,124 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-06 00:59:49,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:59:49,124 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-06 00:59:49,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 00:59:49,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:49,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:49,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 00:59:49,127 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:49,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:49,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1613616234, now seen corresponding path program 1 times [2020-10-06 00:59:49,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:49,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887491383] [2020-10-06 00:59:49,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:49,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:49,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887491383] [2020-10-06 00:59:49,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:49,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:59:49,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1809175155] [2020-10-06 00:59:49,194 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:49,195 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:49,197 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions. [2020-10-06 00:59:49,197 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:49,205 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:49,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:59:49,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:49,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:59:49,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:59:49,207 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 4 states. [2020-10-06 00:59:49,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:49,238 INFO L93 Difference]: Finished difference Result 254 states and 666 transitions. [2020-10-06 00:59:49,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:59:49,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-06 00:59:49,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:49,241 INFO L225 Difference]: With dead ends: 254 [2020-10-06 00:59:49,241 INFO L226 Difference]: Without dead ends: 190 [2020-10-06 00:59:49,242 INFO L675 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 [2020-10-06 00:59:49,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-06 00:59:49,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2020-10-06 00:59:49,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-06 00:59:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 502 transitions. [2020-10-06 00:59:49,261 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 502 transitions. Word has length 10 [2020-10-06 00:59:49,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:49,261 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 502 transitions. [2020-10-06 00:59:49,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:59:49,262 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 502 transitions. [2020-10-06 00:59:49,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:59:49,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:49,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:49,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 00:59:49,264 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:49,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:49,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1111108671, now seen corresponding path program 1 times [2020-10-06 00:59:49,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:49,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414081193] [2020-10-06 00:59:49,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:49,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:49,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414081193] [2020-10-06 00:59:49,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:49,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:59:49,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1251477365] [2020-10-06 00:59:49,334 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:49,335 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:49,338 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-06 00:59:49,338 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:49,369 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:49,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:59:49,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:49,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:59:49,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:59:49,371 INFO L87 Difference]: Start difference. First operand 190 states and 502 transitions. Second operand 4 states. [2020-10-06 00:59:49,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:49,397 INFO L93 Difference]: Finished difference Result 286 states and 722 transitions. [2020-10-06 00:59:49,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:59:49,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 00:59:49,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:49,399 INFO L225 Difference]: With dead ends: 286 [2020-10-06 00:59:49,399 INFO L226 Difference]: Without dead ends: 178 [2020-10-06 00:59:49,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:59:49,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-06 00:59:49,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2020-10-06 00:59:49,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-06 00:59:49,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 376 transitions. [2020-10-06 00:59:49,414 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 376 transitions. Word has length 11 [2020-10-06 00:59:49,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:49,415 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 376 transitions. [2020-10-06 00:59:49,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:59:49,415 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 376 transitions. [2020-10-06 00:59:49,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:59:49,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:49,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:49,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 00:59:49,417 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:49,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:49,417 INFO L82 PathProgramCache]: Analyzing trace with hash -143018253, now seen corresponding path program 1 times [2020-10-06 00:59:49,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:49,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090091482] [2020-10-06 00:59:49,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:49,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:49,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090091482] [2020-10-06 00:59:49,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:49,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:59:49,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1275528648] [2020-10-06 00:59:49,466 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:49,467 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:49,470 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 29 transitions. [2020-10-06 00:59:49,470 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:49,501 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:49,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:59:49,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:49,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:59:49,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:59:49,502 INFO L87 Difference]: Start difference. First operand 154 states and 376 transitions. Second operand 4 states. [2020-10-06 00:59:49,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:49,522 INFO L93 Difference]: Finished difference Result 214 states and 514 transitions. [2020-10-06 00:59:49,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:59:49,523 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-06 00:59:49,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:49,524 INFO L225 Difference]: With dead ends: 214 [2020-10-06 00:59:49,525 INFO L226 Difference]: Without dead ends: 150 [2020-10-06 00:59:49,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:59:49,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-06 00:59:49,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-06 00:59:49,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-06 00:59:49,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 362 transitions. [2020-10-06 00:59:49,535 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 362 transitions. Word has length 12 [2020-10-06 00:59:49,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:49,535 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 362 transitions. [2020-10-06 00:59:49,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:59:49,535 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 362 transitions. [2020-10-06 00:59:49,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:59:49,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:49,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:49,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 00:59:49,537 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:49,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:49,538 INFO L82 PathProgramCache]: Analyzing trace with hash -178767453, now seen corresponding path program 2 times [2020-10-06 00:59:49,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:49,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996591052] [2020-10-06 00:59:49,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:49,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996591052] [2020-10-06 00:59:49,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:49,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:59:49,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [520781811] [2020-10-06 00:59:49,581 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:49,582 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:49,584 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-06 00:59:49,584 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:49,601 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:49,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:59:49,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:49,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:59:49,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:59:49,603 INFO L87 Difference]: Start difference. First operand 150 states and 362 transitions. Second operand 3 states. [2020-10-06 00:59:49,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:49,614 INFO L93 Difference]: Finished difference Result 170 states and 402 transitions. [2020-10-06 00:59:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:59:49,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-06 00:59:49,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:49,616 INFO L225 Difference]: With dead ends: 170 [2020-10-06 00:59:49,616 INFO L226 Difference]: Without dead ends: 68 [2020-10-06 00:59:49,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:59:49,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-06 00:59:49,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-06 00:59:49,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-06 00:59:49,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-10-06 00:59:49,621 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-10-06 00:59:49,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:49,621 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-10-06 00:59:49,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:59:49,622 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-10-06 00:59:49,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:59:49,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:49,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:49,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 00:59:49,623 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:49,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:49,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 1 times [2020-10-06 00:59:49,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:49,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506155194] [2020-10-06 00:59:49,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:49,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:49,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506155194] [2020-10-06 00:59:49,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:49,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:59:49,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2098752820] [2020-10-06 00:59:49,684 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:49,685 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:49,690 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-10-06 00:59:49,690 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:49,716 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:49,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:59:49,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:49,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:59:49,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:59:49,717 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-10-06 00:59:49,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:49,729 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-10-06 00:59:49,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:59:49,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-06 00:59:49,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:49,730 INFO L225 Difference]: With dead ends: 56 [2020-10-06 00:59:49,731 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 00:59:49,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:59:49,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 00:59:49,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 00:59:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 00:59:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 00:59:49,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-06 00:59:49,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:49,732 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 00:59:49,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:59:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 00:59:49,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 00:59:49,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 00:59:49,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 12:59:49 BasicIcfg [2020-10-06 00:59:49,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 00:59:49,739 INFO L168 Benchmark]: Toolchain (without parser) took 4101.75 ms. Allocated memory was 140.0 MB in the beginning and 248.5 MB in the end (delta: 108.5 MB). Free memory was 100.6 MB in the beginning and 199.4 MB in the end (delta: -98.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-10-06 00:59:49,740 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 00:59:49,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.41 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 100.2 MB in the beginning and 158.0 MB in the end (delta: -57.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-10-06 00:59:49,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.23 ms. Allocated memory is still 201.3 MB. Free memory was 158.0 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. [2020-10-06 00:59:49,743 INFO L168 Benchmark]: Boogie Preprocessor took 29.52 ms. Allocated memory is still 201.3 MB. Free memory was 156.1 MB in the beginning and 154.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-06 00:59:49,744 INFO L168 Benchmark]: RCFGBuilder took 483.27 ms. Allocated memory is still 201.3 MB. Free memory was 154.8 MB in the beginning and 132.4 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-10-06 00:59:49,744 INFO L168 Benchmark]: TraceAbstraction took 2870.04 ms. Allocated memory was 201.3 MB in the beginning and 248.5 MB in the end (delta: 47.2 MB). Free memory was 131.8 MB in the beginning and 199.4 MB in the end (delta: -67.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-06 00:59:49,749 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 665.41 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 100.2 MB in the beginning and 158.0 MB in the end (delta: -57.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.23 ms. Allocated memory is still 201.3 MB. Free memory was 158.0 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 29.52 ms. Allocated memory is still 201.3 MB. Free memory was 156.1 MB in the beginning and 154.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 483.27 ms. Allocated memory is still 201.3 MB. Free memory was 154.8 MB in the beginning and 132.4 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2870.04 ms. Allocated memory was 201.3 MB in the beginning and 248.5 MB in the end (delta: 47.2 MB). Free memory was 131.8 MB in the beginning and 199.4 MB in the end (delta: -67.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 653 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 117 SDtfs, 82 SDslu, 101 SDs, 0 SdLazy, 44 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1654 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...