/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-16 14:08:33,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 14:08:33,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 14:08:33,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 14:08:33,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 14:08:33,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 14:08:33,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 14:08:33,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 14:08:33,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 14:08:33,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 14:08:33,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 14:08:33,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 14:08:33,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 14:08:33,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 14:08:33,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 14:08:33,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 14:08:33,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 14:08:33,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 14:08:33,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 14:08:33,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 14:08:33,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 14:08:33,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 14:08:33,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 14:08:33,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 14:08:33,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-16 14:08:33,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 14:08:33,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 14:08:33,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 14:08:33,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 14:08:33,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 14:08:33,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 14:08:33,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 14:08:33,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 14:08:33,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 14:08:33,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 14:08:33,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 14:08:33,420 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-16 14:08:33,468 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 14:08:33,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 14:08:33,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 14:08:33,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 14:08:33,471 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 14:08:33,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 14:08:33,472 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 14:08:33,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 14:08:33,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 14:08:33,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 14:08:33,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 14:08:33,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 14:08:33,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 14:08:33,475 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 14:08:33,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 14:08:33,475 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 14:08:33,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 14:08:33,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 14:08:33,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 14:08:33,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 14:08:33,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 14:08:33,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 14:08:33,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 14:08:33,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-16 14:08:33,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 14:08:33,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 14:08:33,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 14:08:33,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 14:08:33,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-16 14:08:33,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-16 14:08:33,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 14:08:33,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 14:08:33,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 14:08:33,934 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 14:08:33,934 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 14:08:33,936 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-09-16 14:08:34,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d24ffdbcb/72cd0235753e4e7f83b98bf2283d9d24/FLAG899a06426 [2020-09-16 14:08:34,650 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 14:08:34,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-09-16 14:08:34,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d24ffdbcb/72cd0235753e4e7f83b98bf2283d9d24/FLAG899a06426 [2020-09-16 14:08:34,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d24ffdbcb/72cd0235753e4e7f83b98bf2283d9d24 [2020-09-16 14:08:34,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 14:08:34,967 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 14:08:34,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 14:08:34,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 14:08:34,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 14:08:34,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 02:08:34" (1/1) ... [2020-09-16 14:08:34,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4580bd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:34, skipping insertion in model container [2020-09-16 14:08:34,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 02:08:34" (1/1) ... [2020-09-16 14:08:34,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 14:08:35,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 14:08:35,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 14:08:35,521 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 14:08:35,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 14:08:35,652 INFO L208 MainTranslator]: Completed translation [2020-09-16 14:08:35,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:35 WrapperNode [2020-09-16 14:08:35,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 14:08:35,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 14:08:35,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 14:08:35,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 14:08:35,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:35" (1/1) ... [2020-09-16 14:08:35,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:35" (1/1) ... [2020-09-16 14:08:35,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 14:08:35,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 14:08:35,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 14:08:35,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 14:08:35,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:35" (1/1) ... [2020-09-16 14:08:35,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:35" (1/1) ... [2020-09-16 14:08:35,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:35" (1/1) ... [2020-09-16 14:08:35,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:35" (1/1) ... [2020-09-16 14:08:35,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:35" (1/1) ... [2020-09-16 14:08:35,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:35" (1/1) ... [2020-09-16 14:08:35,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:35" (1/1) ... [2020-09-16 14:08:35,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 14:08:35,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 14:08:35,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 14:08:35,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 14:08:35,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:35" (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 [2020-09-16 14:08:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-16 14:08:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-09-16 14:08:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-09-16 14:08:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-09-16 14:08:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-09-16 14:08:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 14:08:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 14:08:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 14:08:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 14:08:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 14:08:35,851 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 14:08:36,250 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 14:08:36,250 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-09-16 14:08:36,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 02:08:36 BoogieIcfgContainer [2020-09-16 14:08:36,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 14:08:36,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 14:08:36,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 14:08:36,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 14:08:36,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 02:08:34" (1/3) ... [2020-09-16 14:08:36,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ede63c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 02:08:36, skipping insertion in model container [2020-09-16 14:08:36,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 02:08:35" (2/3) ... [2020-09-16 14:08:36,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ede63c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 02:08:36, skipping insertion in model container [2020-09-16 14:08:36,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 02:08:36" (3/3) ... [2020-09-16 14:08:36,264 INFO L109 eAbstractionObserver]: Analyzing ICFG szymanski.i [2020-09-16 14:08:36,273 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 14:08:36,274 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-16 14:08:36,287 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-16 14:08:36,288 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 14:08:36,323 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,323 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,324 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,324 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,325 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,326 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,334 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,334 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,342 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,342 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,342 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,343 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 14:08:36,375 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-16 14:08:36,403 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 14:08:36,404 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 14:08:36,404 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-16 14:08:36,404 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-16 14:08:36,404 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 14:08:36,404 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 14:08:36,405 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 14:08:36,405 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 14:08:36,424 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 87 transitions, 196 flow [2020-09-16 14:08:36,427 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions, 196 flow [2020-09-16 14:08:36,479 INFO L129 PetriNetUnfolder]: 21/87 cut-off events. [2020-09-16 14:08:36,480 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-16 14:08:36,488 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2020-09-16 14:08:36,492 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions, 196 flow [2020-09-16 14:08:36,514 INFO L129 PetriNetUnfolder]: 21/87 cut-off events. [2020-09-16 14:08:36,514 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-16 14:08:36,516 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2020-09-16 14:08:36,518 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2160 [2020-09-16 14:08:36,520 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-16 14:08:37,548 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4147 [2020-09-16 14:08:37,548 INFO L214 etLargeBlockEncoding]: Total number of compositions: 38 [2020-09-16 14:08:37,553 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 59 transitions, 140 flow [2020-09-16 14:08:37,591 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 509 states. [2020-09-16 14:08:37,595 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states. [2020-09-16 14:08:37,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-16 14:08:37,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 14:08:37,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 14:08:37,607 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 14:08:37,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 14:08:37,614 INFO L82 PathProgramCache]: Analyzing trace with hash -223988154, now seen corresponding path program 1 times [2020-09-16 14:08:37,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 14:08:37,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504830263] [2020-09-16 14:08:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 14:08:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 14:08:37,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 14:08:37,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504830263] [2020-09-16 14:08:37,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 14:08:37,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 14:08:37,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77274380] [2020-09-16 14:08:37,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-16 14:08:37,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 14:08:37,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-16 14:08:37,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-16 14:08:37,840 INFO L87 Difference]: Start difference. First operand 509 states. Second operand 2 states. [2020-09-16 14:08:37,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 14:08:37,882 INFO L93 Difference]: Finished difference Result 509 states and 1466 transitions. [2020-09-16 14:08:37,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-16 14:08:37,885 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-16 14:08:37,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 14:08:37,912 INFO L225 Difference]: With dead ends: 509 [2020-09-16 14:08:37,912 INFO L226 Difference]: Without dead ends: 470 [2020-09-16 14:08:37,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-16 14:08:37,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-09-16 14:08:38,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2020-09-16 14:08:38,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-09-16 14:08:38,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1363 transitions. [2020-09-16 14:08:38,042 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1363 transitions. Word has length 8 [2020-09-16 14:08:38,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 14:08:38,043 INFO L479 AbstractCegarLoop]: Abstraction has 470 states and 1363 transitions. [2020-09-16 14:08:38,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-16 14:08:38,043 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1363 transitions. [2020-09-16 14:08:38,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-16 14:08:38,045 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 14:08:38,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 14:08:38,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 14:08:38,046 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 14:08:38,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 14:08:38,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1417283260, now seen corresponding path program 1 times [2020-09-16 14:08:38,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 14:08:38,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739287895] [2020-09-16 14:08:38,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 14:08:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 14:08:38,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 14:08:38,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739287895] [2020-09-16 14:08:38,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 14:08:38,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 14:08:38,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414892759] [2020-09-16 14:08:38,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 14:08:38,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 14:08:38,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 14:08:38,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 14:08:38,173 INFO L87 Difference]: Start difference. First operand 470 states and 1363 transitions. Second operand 3 states. [2020-09-16 14:08:38,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 14:08:38,231 INFO L93 Difference]: Finished difference Result 481 states and 1359 transitions. [2020-09-16 14:08:38,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 14:08:38,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-16 14:08:38,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 14:08:38,242 INFO L225 Difference]: With dead ends: 481 [2020-09-16 14:08:38,242 INFO L226 Difference]: Without dead ends: 391 [2020-09-16 14:08:38,243 INFO L675 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 [2020-09-16 14:08:38,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-09-16 14:08:38,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 373. [2020-09-16 14:08:38,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-16 14:08:38,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1071 transitions. [2020-09-16 14:08:38,292 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1071 transitions. Word has length 10 [2020-09-16 14:08:38,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 14:08:38,292 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 1071 transitions. [2020-09-16 14:08:38,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 14:08:38,293 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1071 transitions. [2020-09-16 14:08:38,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-16 14:08:38,295 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 14:08:38,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 14:08:38,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 14:08:38,296 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 14:08:38,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 14:08:38,297 INFO L82 PathProgramCache]: Analyzing trace with hash -2015895147, now seen corresponding path program 1 times [2020-09-16 14:08:38,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 14:08:38,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664822846] [2020-09-16 14:08:38,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 14:08:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 14:08:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 14:08:38,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664822846] [2020-09-16 14:08:38,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 14:08:38,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 14:08:38,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616577298] [2020-09-16 14:08:38,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 14:08:38,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 14:08:38,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 14:08:38,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 14:08:38,360 INFO L87 Difference]: Start difference. First operand 373 states and 1071 transitions. Second operand 3 states. [2020-09-16 14:08:38,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 14:08:38,379 INFO L93 Difference]: Finished difference Result 360 states and 1018 transitions. [2020-09-16 14:08:38,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 14:08:38,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-16 14:08:38,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 14:08:38,383 INFO L225 Difference]: With dead ends: 360 [2020-09-16 14:08:38,383 INFO L226 Difference]: Without dead ends: 264 [2020-09-16 14:08:38,383 INFO L675 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 [2020-09-16 14:08:38,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-09-16 14:08:38,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2020-09-16 14:08:38,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-16 14:08:38,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 749 transitions. [2020-09-16 14:08:38,394 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 749 transitions. Word has length 12 [2020-09-16 14:08:38,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 14:08:38,395 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 749 transitions. [2020-09-16 14:08:38,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 14:08:38,396 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 749 transitions. [2020-09-16 14:08:38,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-16 14:08:38,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 14:08:38,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 14:08:38,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 14:08:38,399 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 14:08:38,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 14:08:38,399 INFO L82 PathProgramCache]: Analyzing trace with hash 573136511, now seen corresponding path program 1 times [2020-09-16 14:08:38,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 14:08:38,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556413601] [2020-09-16 14:08:38,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 14:08:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 14:08:38,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 14:08:38,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556413601] [2020-09-16 14:08:38,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 14:08:38,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 14:08:38,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983147047] [2020-09-16 14:08:38,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 14:08:38,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 14:08:38,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 14:08:38,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 14:08:38,467 INFO L87 Difference]: Start difference. First operand 264 states and 749 transitions. Second operand 3 states. [2020-09-16 14:08:38,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 14:08:38,522 INFO L93 Difference]: Finished difference Result 292 states and 809 transitions. [2020-09-16 14:08:38,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 14:08:38,523 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-16 14:08:38,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 14:08:38,525 INFO L225 Difference]: With dead ends: 292 [2020-09-16 14:08:38,525 INFO L226 Difference]: Without dead ends: 280 [2020-09-16 14:08:38,526 INFO L675 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 [2020-09-16 14:08:38,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-09-16 14:08:38,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-09-16 14:08:38,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-16 14:08:38,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 773 transitions. [2020-09-16 14:08:38,537 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 773 transitions. Word has length 19 [2020-09-16 14:08:38,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 14:08:38,538 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 773 transitions. [2020-09-16 14:08:38,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 14:08:38,538 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 773 transitions. [2020-09-16 14:08:38,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-16 14:08:38,544 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 14:08:38,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 14:08:38,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 14:08:38,545 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 14:08:38,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 14:08:38,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1551241601, now seen corresponding path program 2 times [2020-09-16 14:08:38,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 14:08:38,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66993862] [2020-09-16 14:08:38,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 14:08:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 14:08:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 14:08:38,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66993862] [2020-09-16 14:08:38,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 14:08:38,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 14:08:38,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079641421] [2020-09-16 14:08:38,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 14:08:38,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 14:08:38,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 14:08:38,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 14:08:38,627 INFO L87 Difference]: Start difference. First operand 280 states and 773 transitions. Second operand 3 states. [2020-09-16 14:08:38,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 14:08:38,680 INFO L93 Difference]: Finished difference Result 312 states and 828 transitions. [2020-09-16 14:08:38,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 14:08:38,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-16 14:08:38,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 14:08:38,683 INFO L225 Difference]: With dead ends: 312 [2020-09-16 14:08:38,684 INFO L226 Difference]: Without dead ends: 230 [2020-09-16 14:08:38,684 INFO L675 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 [2020-09-16 14:08:38,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-09-16 14:08:38,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2020-09-16 14:08:38,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-16 14:08:38,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 555 transitions. [2020-09-16 14:08:38,693 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 555 transitions. Word has length 19 [2020-09-16 14:08:38,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 14:08:38,693 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 555 transitions. [2020-09-16 14:08:38,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 14:08:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 555 transitions. [2020-09-16 14:08:38,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-16 14:08:38,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 14:08:38,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 14:08:38,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-16 14:08:38,703 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 14:08:38,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 14:08:38,704 INFO L82 PathProgramCache]: Analyzing trace with hash 926221059, now seen corresponding path program 3 times [2020-09-16 14:08:38,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 14:08:38,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884669405] [2020-09-16 14:08:38,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 14:08:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 14:08:38,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 14:08:38,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884669405] [2020-09-16 14:08:38,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 14:08:38,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 14:08:38,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443821455] [2020-09-16 14:08:38,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 14:08:38,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 14:08:38,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 14:08:38,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 14:08:38,745 INFO L87 Difference]: Start difference. First operand 226 states and 555 transitions. Second operand 3 states. [2020-09-16 14:08:38,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 14:08:38,786 INFO L93 Difference]: Finished difference Result 210 states and 499 transitions. [2020-09-16 14:08:38,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 14:08:38,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-16 14:08:38,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 14:08:38,790 INFO L225 Difference]: With dead ends: 210 [2020-09-16 14:08:38,790 INFO L226 Difference]: Without dead ends: 210 [2020-09-16 14:08:38,791 INFO L675 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 [2020-09-16 14:08:38,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-09-16 14:08:38,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2020-09-16 14:08:38,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-09-16 14:08:38,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 499 transitions. [2020-09-16 14:08:38,797 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 499 transitions. Word has length 19 [2020-09-16 14:08:38,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 14:08:38,798 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 499 transitions. [2020-09-16 14:08:38,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 14:08:38,798 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 499 transitions. [2020-09-16 14:08:38,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-16 14:08:38,799 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 14:08:38,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 14:08:38,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-16 14:08:38,799 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 14:08:38,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 14:08:38,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1185214475, now seen corresponding path program 4 times [2020-09-16 14:08:38,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 14:08:38,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617796608] [2020-09-16 14:08:38,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 14:08:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 14:08:38,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 14:08:38,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617796608] [2020-09-16 14:08:38,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 14:08:38,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 14:08:38,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144229144] [2020-09-16 14:08:38,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 14:08:38,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 14:08:38,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 14:08:38,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 14:08:38,867 INFO L87 Difference]: Start difference. First operand 210 states and 499 transitions. Second operand 3 states. [2020-09-16 14:08:38,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 14:08:38,894 INFO L93 Difference]: Finished difference Result 160 states and 390 transitions. [2020-09-16 14:08:38,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 14:08:38,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-16 14:08:38,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 14:08:38,895 INFO L225 Difference]: With dead ends: 160 [2020-09-16 14:08:38,895 INFO L226 Difference]: Without dead ends: 0 [2020-09-16 14:08:38,895 INFO L675 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 [2020-09-16 14:08:38,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-16 14:08:38,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-16 14:08:38,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-16 14:08:38,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-16 14:08:38,897 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-09-16 14:08:38,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 14:08:38,897 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-16 14:08:38,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 14:08:38,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-16 14:08:38,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-16 14:08:38,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-16 14:08:38,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 02:08:38 BasicIcfg [2020-09-16 14:08:38,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 14:08:38,906 INFO L168 Benchmark]: Toolchain (without parser) took 3941.11 ms. Allocated memory was 147.8 MB in the beginning and 245.4 MB in the end (delta: 97.5 MB). Free memory was 101.6 MB in the beginning and 127.3 MB in the end (delta: -25.7 MB). Peak memory consumption was 71.9 MB. Max. memory is 7.1 GB. [2020-09-16 14:08:38,907 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-16 14:08:38,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.69 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.0 MB in the beginning and 163.4 MB in the end (delta: -62.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-09-16 14:08:38,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.92 ms. Allocated memory is still 205.0 MB. Free memory was 163.4 MB in the beginning and 161.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-16 14:08:38,910 INFO L168 Benchmark]: Boogie Preprocessor took 35.27 ms. Allocated memory is still 205.0 MB. Free memory was 161.5 MB in the beginning and 159.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-16 14:08:38,911 INFO L168 Benchmark]: RCFGBuilder took 509.37 ms. Allocated memory is still 205.0 MB. Free memory was 159.6 MB in the beginning and 137.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-16 14:08:38,912 INFO L168 Benchmark]: TraceAbstraction took 2646.80 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 136.9 MB in the beginning and 127.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 50.0 MB. Max. memory is 7.1 GB. [2020-09-16 14:08:38,916 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 685.69 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.0 MB in the beginning and 163.4 MB in the end (delta: -62.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.92 ms. Allocated memory is still 205.0 MB. Free memory was 163.4 MB in the beginning and 161.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.27 ms. Allocated memory is still 205.0 MB. Free memory was 161.5 MB in the beginning and 159.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 509.37 ms. Allocated memory is still 205.0 MB. Free memory was 159.6 MB in the beginning and 137.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2646.80 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 136.9 MB in the beginning and 127.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 50.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 72 ProgramPointsBefore, 46 ProgramPointsAfterwards, 87 TransitionsBefore, 59 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 686 VarBasedMoverChecksPositive, 97 VarBasedMoverChecksNegative, 75 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 4147 CheckedPairsTotal, 38 TotalNumberOfCompositions - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 66 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 367 SDtfs, 133 SDslu, 141 SDs, 0 SdLazy, 82 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 2127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...