/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.epf -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:46:23,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:46:23,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:46:23,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:46:23,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:46:23,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:46:23,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:46:23,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:46:23,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:46:23,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:46:23,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:46:23,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:46:23,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:46:23,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:46:23,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:46:23,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:46:23,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:46:23,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:46:23,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:46:23,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:46:23,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:46:23,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:46:23,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:46:23,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:46:23,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:46:23,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:46:23,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:46:23,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:46:23,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:46:23,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:46:23,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:46:23,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:46:23,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:46:23,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:46:23,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:46:23,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:46:23,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:46:23,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:46:23,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:46:23,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:46:23,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:46:23,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 11:46:23,532 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:46:23,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:46:23,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:46:23,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:46:23,534 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:46:23,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:46:23,534 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:46:23,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:46:23,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:46:23,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:46:23,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:46:23,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:46:23,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:46:23,535 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:46:23,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:46:23,536 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:46:23,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:46:23,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:46:23,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:46:23,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:46:23,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:46:23,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:46:23,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:46:23,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 11:46:23,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:46:23,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:46:23,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:46:23,538 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 11:46:23,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:46:23,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:46:23,858 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:46:23,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:46:23,864 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:46:23,867 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:46:23,868 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2020-10-16 11:46:23,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6758bf4a9/6f05027280be4c1b8bbb3a2dcc45a1c6/FLAG8333196ec [2020-10-16 11:46:24,508 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:46:24,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2020-10-16 11:46:24,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6758bf4a9/6f05027280be4c1b8bbb3a2dcc45a1c6/FLAG8333196ec [2020-10-16 11:46:24,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6758bf4a9/6f05027280be4c1b8bbb3a2dcc45a1c6 [2020-10-16 11:46:24,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:46:24,849 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:46:24,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:46:24,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:46:24,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:46:24,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:46:24" (1/1) ... [2020-10-16 11:46:24,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ea903f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:24, skipping insertion in model container [2020-10-16 11:46:24,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:46:24" (1/1) ... [2020-10-16 11:46:24,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:46:24,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:46:25,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:46:25,411 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:46:25,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:46:25,564 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:46:25,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25 WrapperNode [2020-10-16 11:46:25,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:46:25,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:46:25,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:46:25,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:46:25,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:46:25,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:46:25,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:46:25,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:46:25,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:46:25,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:46:25,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:46:25,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:46:25,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:46:25,715 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 11:46:25,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 11:46:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:46:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:46:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:46:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:46:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:46:25,719 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:46:26,230 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:46:26,230 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-16 11:46:26,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:46:26 BoogieIcfgContainer [2020-10-16 11:46:26,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:46:26,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:46:26,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:46:26,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:46:26,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:46:24" (1/3) ... [2020-10-16 11:46:26,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3774acf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:46:26, skipping insertion in model container [2020-10-16 11:46:26,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (2/3) ... [2020-10-16 11:46:26,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3774acf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:46:26, skipping insertion in model container [2020-10-16 11:46:26,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:46:26" (3/3) ... [2020-10-16 11:46:26,241 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2020-10-16 11:46:26,253 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:46:26,253 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:46:26,260 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:46:26,261 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:46:26,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:26,291 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:46:26,302 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-16 11:46:26,320 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:46:26,320 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:46:26,320 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:46:26,320 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:46:26,320 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:46:26,320 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:46:26,321 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:46:26,321 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:46:26,331 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:46:26,331 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 39 transitions, 83 flow [2020-10-16 11:46:26,334 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 39 transitions, 83 flow [2020-10-16 11:46:26,336 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 42 places, 39 transitions, 83 flow [2020-10-16 11:46:26,366 INFO L129 PetriNetUnfolder]: 1/38 cut-off events. [2020-10-16 11:46:26,367 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:46:26,371 INFO L80 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 38 events. 1/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2020-10-16 11:46:26,372 INFO L117 LiptonReduction]: Number of co-enabled transitions 240 [2020-10-16 11:46:27,110 INFO L132 LiptonReduction]: Checked pairs total: 596 [2020-10-16 11:46:27,111 INFO L134 LiptonReduction]: Total number of compositions: 31 [2020-10-16 11:46:27,118 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 16 places, 13 transitions, 31 flow [2020-10-16 11:46:27,127 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 30 states. [2020-10-16 11:46:27,130 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-16 11:46:27,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 11:46:27,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:27,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 11:46:27,138 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:27,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:27,144 INFO L82 PathProgramCache]: Analyzing trace with hash 208157518, now seen corresponding path program 1 times [2020-10-16 11:46:27,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:27,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854369833] [2020-10-16 11:46:27,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:27,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:27,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854369833] [2020-10-16 11:46:27,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:27,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:46:27,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733524961] [2020-10-16 11:46:27,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:46:27,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:27,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:46:27,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:27,386 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2020-10-16 11:46:27,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:27,422 INFO L93 Difference]: Finished difference Result 32 states and 46 transitions. [2020-10-16 11:46:27,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:46:27,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 11:46:27,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:27,434 INFO L225 Difference]: With dead ends: 32 [2020-10-16 11:46:27,434 INFO L226 Difference]: Without dead ends: 12 [2020-10-16 11:46:27,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:27,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-16 11:46:27,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-16 11:46:27,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-16 11:46:27,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-10-16 11:46:27,472 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2020-10-16 11:46:27,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:27,472 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-10-16 11:46:27,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:46:27,473 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-10-16 11:46:27,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 11:46:27,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:27,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:27,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:46:27,474 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:27,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:27,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1837808105, now seen corresponding path program 1 times [2020-10-16 11:46:27,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:27,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841216546] [2020-10-16 11:46:27,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:27,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841216546] [2020-10-16 11:46:27,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:27,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:27,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462103759] [2020-10-16 11:46:27,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:46:27,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:27,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:46:27,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:27,535 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2020-10-16 11:46:27,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:27,547 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2020-10-16 11:46:27,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:46:27,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-16 11:46:27,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:27,548 INFO L225 Difference]: With dead ends: 12 [2020-10-16 11:46:27,548 INFO L226 Difference]: Without dead ends: 11 [2020-10-16 11:46:27,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:27,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-16 11:46:27,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-16 11:46:27,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-16 11:46:27,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2020-10-16 11:46:27,553 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2020-10-16 11:46:27,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:27,553 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-10-16 11:46:27,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:46:27,553 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-10-16 11:46:27,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 11:46:27,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:27,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:27,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:46:27,555 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:27,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:27,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1824085025, now seen corresponding path program 2 times [2020-10-16 11:46:27,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:27,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175636652] [2020-10-16 11:46:27,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:27,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175636652] [2020-10-16 11:46:27,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:27,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:27,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662396007] [2020-10-16 11:46:27,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:46:27,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:27,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:46:27,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:46:27,609 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 4 states. [2020-10-16 11:46:27,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:27,617 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2020-10-16 11:46:27,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:46:27,618 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-16 11:46:27,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:27,618 INFO L225 Difference]: With dead ends: 5 [2020-10-16 11:46:27,618 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:46:27,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:46:27,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:46:27,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:46:27,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:46:27,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:46:27,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-10-16 11:46:27,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:27,620 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:46:27,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:46:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:46:27,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:46:27,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:46:27,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:46:27 BasicIcfg [2020-10-16 11:46:27,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:46:27,628 INFO L168 Benchmark]: Toolchain (without parser) took 2777.71 ms. Allocated memory was 139.5 MB in the beginning and 235.4 MB in the end (delta: 95.9 MB). Free memory was 101.2 MB in the beginning and 113.4 MB in the end (delta: -12.2 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,629 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.72 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 160.2 MB in the end (delta: -59.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.48 ms. Allocated memory is still 202.4 MB. Free memory was 160.2 MB in the beginning and 157.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,632 INFO L168 Benchmark]: Boogie Preprocessor took 26.72 ms. Allocated memory is still 202.4 MB. Free memory was 157.3 MB in the beginning and 156.3 MB in the end (delta: 971.4 kB). Peak memory consumption was 971.4 kB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,633 INFO L168 Benchmark]: RCFGBuilder took 587.18 ms. Allocated memory is still 202.4 MB. Free memory was 156.3 MB in the beginning and 127.1 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,634 INFO L168 Benchmark]: TraceAbstraction took 1391.35 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 127.1 MB in the beginning and 113.4 MB in the end (delta: 13.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,639 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.72 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 160.2 MB in the end (delta: -59.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.48 ms. Allocated memory is still 202.4 MB. Free memory was 160.2 MB in the beginning and 157.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.72 ms. Allocated memory is still 202.4 MB. Free memory was 157.3 MB in the beginning and 156.3 MB in the end (delta: 971.4 kB). Peak memory consumption was 971.4 kB. Max. memory is 7.1 GB. * RCFGBuilder took 587.18 ms. Allocated memory is still 202.4 MB. Free memory was 156.3 MB in the beginning and 127.1 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1391.35 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 127.1 MB in the beginning and 113.4 MB in the end (delta: 13.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 135 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 19 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.7s, 42 PlacesBefore, 16 PlacesAfterwards, 39 TransitionsBefore, 13 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 4 FixpointIterations, 10 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 0 ChoiceCompositions, 31 TotalNumberOfCompositions, 596 MoverChecksTotal - PositiveResult [Line: 698]: 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 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 22 SDtfs, 9 SDslu, 8 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...