/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-wmm/safe021_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:54:24,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:54:24,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:54:24,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:54:24,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:54:24,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:54:24,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:54:24,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:54:24,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:54:24,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:54:24,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:54:24,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:54:24,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:54:24,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:54:24,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:54:24,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:54:24,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:54:24,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:54:24,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:54:24,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:54:24,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:54:24,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:54:24,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:54:24,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:54:24,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 14:54:24,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:54:24,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:54:24,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:54:24,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:54:24,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:54:24,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:54:24,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:54:24,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:54:24,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:54:24,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:54:24,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:54:24,261 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 [2019-12-18 14:54:24,274 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:54:24,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:54:24,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:54:24,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:54:24,276 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:54:24,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:54:24,276 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:54:24,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:54:24,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:54:24,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:54:24,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:54:24,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:54:24,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:54:24,278 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:54:24,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:54:24,278 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:54:24,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:54:24,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:54:24,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:54:24,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:54:24,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:54:24,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:54:24,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:54:24,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:54:24,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:54:24,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:54:24,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:54:24,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:54:24,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:54:24,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:54:24,645 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:54:24,669 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:54:24,672 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:54:24,674 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:54:24,674 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:54:24,675 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2019-12-18 14:54:24,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823fc19bd/f9ec90ce5b8b446faadb1102f713d39f/FLAGc483c84d3 [2019-12-18 14:54:25,292 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:54:25,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2019-12-18 14:54:25,317 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823fc19bd/f9ec90ce5b8b446faadb1102f713d39f/FLAGc483c84d3 [2019-12-18 14:54:25,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823fc19bd/f9ec90ce5b8b446faadb1102f713d39f [2019-12-18 14:54:25,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:54:25,598 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:54:25,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:54:25,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:54:25,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:54:25,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:54:25" (1/1) ... [2019-12-18 14:54:25,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@585b3bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:25, skipping insertion in model container [2019-12-18 14:54:25,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:54:25" (1/1) ... [2019-12-18 14:54:25,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:54:25,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:54:26,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:54:26,203 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:54:26,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:54:26,343 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:54:26,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:26 WrapperNode [2019-12-18 14:54:26,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:54:26,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:54:26,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:54:26,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:54:26,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:26" (1/1) ... [2019-12-18 14:54:26,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:26" (1/1) ... [2019-12-18 14:54:26,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:54:26,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:54:26,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:54:26,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:54:26,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:26" (1/1) ... [2019-12-18 14:54:26,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:26" (1/1) ... [2019-12-18 14:54:26,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:26" (1/1) ... [2019-12-18 14:54:26,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:26" (1/1) ... [2019-12-18 14:54:26,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:26" (1/1) ... [2019-12-18 14:54:26,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:26" (1/1) ... [2019-12-18 14:54:26,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:26" (1/1) ... [2019-12-18 14:54:26,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:54:26,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:54:26,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:54:26,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:54:26,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:54:26,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:54:26,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:54:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:54:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:54:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:54:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:54:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:54:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:54:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:54:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:54:26,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:54:26,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:54:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:54:26,506 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 14:54:26,855 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:54:26,855 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:54:26,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:54:26 BoogieIcfgContainer [2019-12-18 14:54:26,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:54:26,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:54:26,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:54:26,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:54:26,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:54:25" (1/3) ... [2019-12-18 14:54:26,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164d9396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:54:26, skipping insertion in model container [2019-12-18 14:54:26,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:54:26" (2/3) ... [2019-12-18 14:54:26,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164d9396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:54:26, skipping insertion in model container [2019-12-18 14:54:26,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:54:26" (3/3) ... [2019-12-18 14:54:26,864 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i [2019-12-18 14:54:26,873 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:54:26,874 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:54:26,881 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:54:26,882 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:54:26,908 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,908 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,909 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,909 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,910 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,910 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,910 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,911 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,913 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,913 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,914 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,914 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,914 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,915 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,915 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,915 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,915 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,921 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,924 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,925 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,925 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,925 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,930 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,931 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,931 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,931 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,934 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,934 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,934 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,934 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:54:26,949 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:54:26,969 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:54:26,970 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:54:26,970 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:54:26,970 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:54:26,970 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:54:26,970 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:54:26,971 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:54:26,971 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:54:26,984 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 14:54:26,987 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:54:27,041 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:54:27,042 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:54:27,048 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:54:27,051 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:54:27,068 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:54:27,069 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:54:27,070 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:54:27,072 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:54:27,073 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:54:28,557 INFO L206 etLargeBlockEncoding]: Checked pairs total: 442 [2019-12-18 14:54:28,557 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 14:54:28,561 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 14:54:28,569 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 14:54:28,572 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 14:54:28,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:54:28,577 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:54:28,578 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:54:28,578 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:54:28,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:54:28,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1632263201, now seen corresponding path program 1 times [2019-12-18 14:54:28,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:54:28,590 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227290175] [2019-12-18 14:54:28,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:54:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:54:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:54:28,800 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227290175] [2019-12-18 14:54:28,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:54:28,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:54:28,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285718584] [2019-12-18 14:54:28,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:54:28,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:54:28,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:54:28,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:54:28,820 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 14:54:28,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:54:28,864 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-18 14:54:28,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:54:28,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:54:28,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:54:28,894 INFO L225 Difference]: With dead ends: 52 [2019-12-18 14:54:28,895 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 14:54:28,897 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:54:28,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 14:54:28,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 14:54:28,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 14:54:28,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 14:54:28,937 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 14:54:28,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:54:28,938 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 14:54:28,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:54:28,938 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 14:54:28,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:54:28,939 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:54:28,939 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:54:28,939 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:54:28,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:54:28,940 INFO L82 PathProgramCache]: Analyzing trace with hash -161820659, now seen corresponding path program 1 times [2019-12-18 14:54:28,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:54:28,940 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270756853] [2019-12-18 14:54:28,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:54:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:54:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:54:29,048 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270756853] [2019-12-18 14:54:29,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:54:29,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:54:29,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400430529] [2019-12-18 14:54:29,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:54:29,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:54:29,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:54:29,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:54:29,051 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 14:54:29,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:54:29,074 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-18 14:54:29,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:54:29,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 14:54:29,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:54:29,076 INFO L225 Difference]: With dead ends: 42 [2019-12-18 14:54:29,076 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 14:54:29,077 INFO L631 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 [2019-12-18 14:54:29,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 14:54:29,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-18 14:54:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:54:29,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-18 14:54:29,089 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-18 14:54:29,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:54:29,090 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-18 14:54:29,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:54:29,090 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-18 14:54:29,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:54:29,091 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:54:29,091 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:54:29,092 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:54:29,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:54:29,093 INFO L82 PathProgramCache]: Analyzing trace with hash -939448808, now seen corresponding path program 1 times [2019-12-18 14:54:29,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:54:29,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108287792] [2019-12-18 14:54:29,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:54:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:54:29,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:54:29,153 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108287792] [2019-12-18 14:54:29,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:54:29,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:54:29,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534632405] [2019-12-18 14:54:29,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:54:29,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:54:29,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:54:29,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:54:29,155 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-18 14:54:29,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:54:29,160 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2019-12-18 14:54:29,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:54:29,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 14:54:29,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:54:29,162 INFO L225 Difference]: With dead ends: 32 [2019-12-18 14:54:29,162 INFO L226 Difference]: Without dead ends: 32 [2019-12-18 14:54:29,162 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:54:29,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-18 14:54:29,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-18 14:54:29,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-18 14:54:29,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2019-12-18 14:54:29,168 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 53 transitions. Word has length 9 [2019-12-18 14:54:29,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:54:29,168 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 53 transitions. [2019-12-18 14:54:29,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:54:29,168 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2019-12-18 14:54:29,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:54:29,169 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:54:29,169 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:54:29,169 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:54:29,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:54:29,170 INFO L82 PathProgramCache]: Analyzing trace with hash 943627699, now seen corresponding path program 1 times [2019-12-18 14:54:29,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:54:29,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839294699] [2019-12-18 14:54:29,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:54:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:54:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:54:29,237 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839294699] [2019-12-18 14:54:29,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:54:29,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:54:29,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483153186] [2019-12-18 14:54:29,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:54:29,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:54:29,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:54:29,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:54:29,241 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. Second operand 4 states. [2019-12-18 14:54:29,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:54:29,262 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2019-12-18 14:54:29,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:54:29,263 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 14:54:29,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:54:29,264 INFO L225 Difference]: With dead ends: 36 [2019-12-18 14:54:29,264 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 14:54:29,264 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:54:29,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 14:54:29,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 14:54:29,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 14:54:29,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-18 14:54:29,268 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 10 [2019-12-18 14:54:29,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:54:29,269 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-18 14:54:29,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:54:29,269 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-18 14:54:29,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:54:29,269 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:54:29,270 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:54:29,270 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:54:29,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:54:29,270 INFO L82 PathProgramCache]: Analyzing trace with hash 941857909, now seen corresponding path program 2 times [2019-12-18 14:54:29,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:54:29,271 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466980072] [2019-12-18 14:54:29,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:54:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:54:29,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:54:29,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466980072] [2019-12-18 14:54:29,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:54:29,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:54:29,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500739572] [2019-12-18 14:54:29,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 14:54:29,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:54:29,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 14:54:29,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:54:29,415 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 5 states. [2019-12-18 14:54:29,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:54:29,456 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2019-12-18 14:54:29,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 14:54:29,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-18 14:54:29,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:54:29,458 INFO L225 Difference]: With dead ends: 31 [2019-12-18 14:54:29,458 INFO L226 Difference]: Without dead ends: 25 [2019-12-18 14:54:29,458 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-18 14:54:29,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-18 14:54:29,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-18 14:54:29,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-18 14:54:29,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-18 14:54:29,462 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 10 [2019-12-18 14:54:29,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:54:29,462 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-18 14:54:29,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 14:54:29,463 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-18 14:54:29,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:54:29,463 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:54:29,463 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:54:29,464 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:54:29,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:54:29,464 INFO L82 PathProgramCache]: Analyzing trace with hash 943327309, now seen corresponding path program 3 times [2019-12-18 14:54:29,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:54:29,464 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898567142] [2019-12-18 14:54:29,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:54:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:54:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:54:29,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898567142] [2019-12-18 14:54:29,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:54:29,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 14:54:29,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639116897] [2019-12-18 14:54:29,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 14:54:29,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:54:29,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 14:54:29,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 14:54:29,552 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 6 states. [2019-12-18 14:54:29,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:54:29,631 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-12-18 14:54:29,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 14:54:29,634 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 14:54:29,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:54:29,635 INFO L225 Difference]: With dead ends: 25 [2019-12-18 14:54:29,635 INFO L226 Difference]: Without dead ends: 18 [2019-12-18 14:54:29,636 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-18 14:54:29,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-18 14:54:29,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-18 14:54:29,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-18 14:54:29,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-18 14:54:29,643 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-12-18 14:54:29,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:54:29,644 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-18 14:54:29,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 14:54:29,644 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-12-18 14:54:29,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:54:29,645 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:54:29,645 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:54:29,645 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:54:29,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:54:29,646 INFO L82 PathProgramCache]: Analyzing trace with hash -889376455, now seen corresponding path program 1 times [2019-12-18 14:54:29,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:54:29,647 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852658419] [2019-12-18 14:54:29,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:54:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:54:29,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:54:29,708 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852658419] [2019-12-18 14:54:29,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:54:29,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:54:29,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124863834] [2019-12-18 14:54:29,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:54:29,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:54:29,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:54:29,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:54:29,710 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 4 states. [2019-12-18 14:54:29,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:54:29,725 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2019-12-18 14:54:29,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:54:29,725 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:54:29,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:54:29,726 INFO L225 Difference]: With dead ends: 17 [2019-12-18 14:54:29,726 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:54:29,726 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:54:29,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:54:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:54:29,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:54:29,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:54:29,728 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:54:29,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:54:29,728 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:54:29,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:54:29,728 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:54:29,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:54:29,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:54:29 BasicIcfg [2019-12-18 14:54:29,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:54:29,737 INFO L168 Benchmark]: Toolchain (without parser) took 4136.94 ms. Allocated memory was 145.2 MB in the beginning and 249.0 MB in the end (delta: 103.8 MB). Free memory was 101.8 MB in the beginning and 112.9 MB in the end (delta: -11.2 MB). Peak memory consumption was 92.6 MB. Max. memory is 7.1 GB. [2019-12-18 14:54:29,742 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 14:54:29,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.66 ms. Allocated memory was 145.2 MB in the beginning and 200.3 MB in the end (delta: 55.1 MB). Free memory was 101.5 MB in the beginning and 157.2 MB in the end (delta: -55.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-18 14:54:29,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.60 ms. Allocated memory is still 200.3 MB. Free memory was 157.2 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:54:29,746 INFO L168 Benchmark]: Boogie Preprocessor took 29.73 ms. Allocated memory is still 200.3 MB. Free memory was 155.2 MB in the beginning and 153.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:54:29,746 INFO L168 Benchmark]: RCFGBuilder took 421.64 ms. Allocated memory is still 200.3 MB. Free memory was 153.2 MB in the beginning and 132.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-18 14:54:29,749 INFO L168 Benchmark]: TraceAbstraction took 2875.08 ms. Allocated memory was 200.3 MB in the beginning and 249.0 MB in the end (delta: 48.8 MB). Free memory was 132.7 MB in the beginning and 112.9 MB in the end (delta: 19.7 MB). Peak memory consumption was 68.5 MB. Max. memory is 7.1 GB. [2019-12-18 14:54:29,760 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 745.66 ms. Allocated memory was 145.2 MB in the beginning and 200.3 MB in the end (delta: 55.1 MB). Free memory was 101.5 MB in the beginning and 157.2 MB in the end (delta: -55.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.60 ms. Allocated memory is still 200.3 MB. Free memory was 157.2 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.73 ms. Allocated memory is still 200.3 MB. Free memory was 155.2 MB in the beginning and 153.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 421.64 ms. Allocated memory is still 200.3 MB. Free memory was 153.2 MB in the beginning and 132.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2875.08 ms. Allocated memory was 200.3 MB in the beginning and 249.0 MB in the end (delta: 48.8 MB). Free memory was 132.7 MB in the beginning and 112.9 MB in the end (delta: 19.7 MB). Peak memory consumption was 68.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 442 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 52 SDslu, 58 SDs, 0 SdLazy, 49 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1713 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...