/usr/bin/java -Xmx16000000000 -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/safe028_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:38:10,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:38:10,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:38:10,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:38:10,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:38:10,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:38:10,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:38:10,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:38:10,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:38:10,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:38:10,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:38:10,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:38:10,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:38:10,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:38:10,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:38:10,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:38:10,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:38:10,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:38:10,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:38:10,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:38:10,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:38:10,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:38:10,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:38:10,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:38:10,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:38:10,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:38:10,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:38:10,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:38:10,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:38:10,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:38:10,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:38:10,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:38:10,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:38:10,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:38:10,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:38:10,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:38:10,324 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 [2020-10-15 18:38:10,347 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:38:10,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:38:10,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:38:10,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:38:10,349 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:38:10,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:38:10,350 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:38:10,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:38:10,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:38:10,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:38:10,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:38:10,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:38:10,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:38:10,351 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:38:10,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:38:10,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:38:10,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:38:10,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:38:10,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:38:10,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:38:10,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:38:10,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:38:10,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:38:10,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:38:10,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:38:10,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:38:10,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:38:10,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:38:10,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:38:10,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:38:10,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:38:10,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:38:10,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:38:10,659 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:38:10,659 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:38:10,660 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2020-10-15 18:38:10,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa46e1f4/0d169f435d8f4f77a77938048096986a/FLAG91a823a7f [2020-10-15 18:38:11,262 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:38:11,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2020-10-15 18:38:11,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa46e1f4/0d169f435d8f4f77a77938048096986a/FLAG91a823a7f [2020-10-15 18:38:11,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aa46e1f4/0d169f435d8f4f77a77938048096986a [2020-10-15 18:38:11,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:38:11,590 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:38:11,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:38:11,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:38:11,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:38:11,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:38:11" (1/1) ... [2020-10-15 18:38:11,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4b4aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:11, skipping insertion in model container [2020-10-15 18:38:11,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:38:11" (1/1) ... [2020-10-15 18:38:11,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:38:11,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:38:12,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:38:12,101 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:38:12,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:38:12,247 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:38:12,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:12 WrapperNode [2020-10-15 18:38:12,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:38:12,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:38:12,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:38:12,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:38:12,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:12" (1/1) ... [2020-10-15 18:38:12,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:12" (1/1) ... [2020-10-15 18:38:12,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:38:12,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:38:12,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:38:12,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:38:12,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:12" (1/1) ... [2020-10-15 18:38:12,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:12" (1/1) ... [2020-10-15 18:38:12,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:12" (1/1) ... [2020-10-15 18:38:12,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:12" (1/1) ... [2020-10-15 18:38:12,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:12" (1/1) ... [2020-10-15 18:38:12,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:12" (1/1) ... [2020-10-15 18:38:12,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:12" (1/1) ... [2020-10-15 18:38:12,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:38:12,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:38:12,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:38:12,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:38:12,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:38:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:38:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:38:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:38:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:38:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:38:12,398 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:38:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:38:12,398 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:38:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:38:12,399 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:38:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:38:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:38:12,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:38:12,401 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:38:12,776 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:38:12,776 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:38:12,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:38:12 BoogieIcfgContainer [2020-10-15 18:38:12,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:38:12,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:38:12,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:38:12,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:38:12,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:38:11" (1/3) ... [2020-10-15 18:38:12,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f7f60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:38:12, skipping insertion in model container [2020-10-15 18:38:12,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:38:12" (2/3) ... [2020-10-15 18:38:12,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f7f60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:38:12, skipping insertion in model container [2020-10-15 18:38:12,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:38:12" (3/3) ... [2020-10-15 18:38:12,787 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_tso.opt.i [2020-10-15 18:38:12,799 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:38:12,799 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:38:12,807 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:38:12,808 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:38:12,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,837 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,839 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,839 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,840 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,840 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,841 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,846 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,846 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,855 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,856 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,856 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,856 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,859 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,859 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,859 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,859 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:38:12,875 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:38:12,897 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:38:12,897 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:38:12,897 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:38:12,898 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:38:12,898 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:38:12,898 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:38:12,898 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:38:12,898 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:38:12,912 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:38:12,915 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 18:38:12,918 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 18:38:12,920 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-15 18:38:12,965 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-15 18:38:12,965 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:38:12,971 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-15 18:38:12,974 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-15 18:38:14,568 INFO L132 LiptonReduction]: Checked pairs total: 2123 [2020-10-15 18:38:14,568 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-15 18:38:14,576 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-15 18:38:14,600 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-15 18:38:14,602 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-15 18:38:14,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:38:14,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:38:14,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:38:14,612 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:38:14,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:38:14,621 INFO L82 PathProgramCache]: Analyzing trace with hash 2007579917, now seen corresponding path program 1 times [2020-10-15 18:38:14,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:38:14,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456467170] [2020-10-15 18:38:14,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:38:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:38:14,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:38:14,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456467170] [2020-10-15 18:38:14,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:38:14,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:38:14,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308507627] [2020-10-15 18:38:14,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:38:14,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:38:14,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:38:14,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:38:14,888 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-15 18:38:14,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:38:14,930 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-10-15 18:38:14,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:38:14,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 18:38:14,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:38:14,947 INFO L225 Difference]: With dead ends: 214 [2020-10-15 18:38:14,947 INFO L226 Difference]: Without dead ends: 166 [2020-10-15 18:38:14,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:38:14,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-15 18:38:15,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-15 18:38:15,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-15 18:38:15,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-10-15 18:38:15,010 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-10-15 18:38:15,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:38:15,011 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-10-15 18:38:15,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:38:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-10-15 18:38:15,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:38:15,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:38:15,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:38:15,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:38:15,014 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:38:15,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:38:15,014 INFO L82 PathProgramCache]: Analyzing trace with hash 2105434478, now seen corresponding path program 1 times [2020-10-15 18:38:15,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:38:15,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687568011] [2020-10-15 18:38:15,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:38:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:38:15,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:38:15,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687568011] [2020-10-15 18:38:15,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:38:15,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:38:15,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386002560] [2020-10-15 18:38:15,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:38:15,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:38:15,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:38:15,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:38:15,093 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-10-15 18:38:15,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:38:15,122 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-10-15 18:38:15,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:38:15,122 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 18:38:15,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:38:15,124 INFO L225 Difference]: With dead ends: 202 [2020-10-15 18:38:15,124 INFO L226 Difference]: Without dead ends: 130 [2020-10-15 18:38:15,125 INFO L677 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 [2020-10-15 18:38:15,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-15 18:38:15,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-15 18:38:15,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-15 18:38:15,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-10-15 18:38:15,140 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-10-15 18:38:15,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:38:15,140 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-10-15 18:38:15,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:38:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-10-15 18:38:15,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:38:15,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:38:15,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:38:15,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:38:15,142 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:38:15,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:38:15,143 INFO L82 PathProgramCache]: Analyzing trace with hash 857303980, now seen corresponding path program 1 times [2020-10-15 18:38:15,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:38:15,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507337280] [2020-10-15 18:38:15,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:38:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:38:15,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:38:15,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507337280] [2020-10-15 18:38:15,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:38:15,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:38:15,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562871712] [2020-10-15 18:38:15,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:38:15,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:38:15,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:38:15,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:38:15,277 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 4 states. [2020-10-15 18:38:15,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:38:15,313 INFO L93 Difference]: Finished difference Result 148 states and 336 transitions. [2020-10-15 18:38:15,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:38:15,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 18:38:15,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:38:15,315 INFO L225 Difference]: With dead ends: 148 [2020-10-15 18:38:15,315 INFO L226 Difference]: Without dead ends: 112 [2020-10-15 18:38:15,316 INFO L677 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 [2020-10-15 18:38:15,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-15 18:38:15,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-15 18:38:15,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-15 18:38:15,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 253 transitions. [2020-10-15 18:38:15,325 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 253 transitions. Word has length 10 [2020-10-15 18:38:15,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:38:15,326 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 253 transitions. [2020-10-15 18:38:15,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:38:15,326 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 253 transitions. [2020-10-15 18:38:15,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:38:15,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:38:15,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:38:15,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:38:15,328 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:38:15,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:38:15,328 INFO L82 PathProgramCache]: Analyzing trace with hash 806230555, now seen corresponding path program 1 times [2020-10-15 18:38:15,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:38:15,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528847954] [2020-10-15 18:38:15,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:38:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:38:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:38:15,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528847954] [2020-10-15 18:38:15,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:38:15,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:38:15,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416111545] [2020-10-15 18:38:15,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:38:15,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:38:15,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:38:15,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:38:15,391 INFO L87 Difference]: Start difference. First operand 112 states and 253 transitions. Second operand 5 states. [2020-10-15 18:38:15,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:38:15,432 INFO L93 Difference]: Finished difference Result 109 states and 227 transitions. [2020-10-15 18:38:15,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:38:15,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-15 18:38:15,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:38:15,433 INFO L225 Difference]: With dead ends: 109 [2020-10-15 18:38:15,433 INFO L226 Difference]: Without dead ends: 85 [2020-10-15 18:38:15,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:38:15,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-15 18:38:15,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-15 18:38:15,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-15 18:38:15,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-10-15 18:38:15,440 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 11 [2020-10-15 18:38:15,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:38:15,440 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-10-15 18:38:15,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:38:15,440 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-10-15 18:38:15,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:38:15,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:38:15,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:38:15,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:38:15,442 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:38:15,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:38:15,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1664906609, now seen corresponding path program 1 times [2020-10-15 18:38:15,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:38:15,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424862135] [2020-10-15 18:38:15,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:38:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:38:15,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:38:15,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424862135] [2020-10-15 18:38:15,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:38:15,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:38:15,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414541375] [2020-10-15 18:38:15,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:38:15,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:38:15,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:38:15,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:38:15,550 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-10-15 18:38:15,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:38:15,614 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-10-15 18:38:15,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:38:15,615 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-15 18:38:15,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:38:15,616 INFO L225 Difference]: With dead ends: 80 [2020-10-15 18:38:15,618 INFO L226 Difference]: Without dead ends: 72 [2020-10-15 18:38:15,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:38:15,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-15 18:38:15,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-15 18:38:15,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-15 18:38:15,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-10-15 18:38:15,629 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-10-15 18:38:15,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:38:15,629 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-10-15 18:38:15,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:38:15,630 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-10-15 18:38:15,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 18:38:15,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:38:15,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:38:15,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:38:15,633 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:38:15,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:38:15,634 INFO L82 PathProgramCache]: Analyzing trace with hash 399497030, now seen corresponding path program 1 times [2020-10-15 18:38:15,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:38:15,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752477967] [2020-10-15 18:38:15,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:38:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:38:15,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:38:15,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752477967] [2020-10-15 18:38:15,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:38:15,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:38:15,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871648663] [2020-10-15 18:38:15,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:38:15,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:38:15,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:38:15,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:38:15,709 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-10-15 18:38:15,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:38:15,726 INFO L93 Difference]: Finished difference Result 97 states and 192 transitions. [2020-10-15 18:38:15,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:38:15,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-15 18:38:15,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:38:15,727 INFO L225 Difference]: With dead ends: 97 [2020-10-15 18:38:15,727 INFO L226 Difference]: Without dead ends: 48 [2020-10-15 18:38:15,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:38:15,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-15 18:38:15,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-15 18:38:15,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 18:38:15,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-10-15 18:38:15,731 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-10-15 18:38:15,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:38:15,731 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-10-15 18:38:15,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:38:15,731 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-10-15 18:38:15,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 18:38:15,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:38:15,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:38:15,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:38:15,733 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:38:15,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:38:15,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1410540376, now seen corresponding path program 2 times [2020-10-15 18:38:15,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:38:15,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111817511] [2020-10-15 18:38:15,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:38:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:38:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:38:15,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111817511] [2020-10-15 18:38:15,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:38:15,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:38:15,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442553613] [2020-10-15 18:38:15,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:38:15,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:38:15,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:38:15,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:38:15,773 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-10-15 18:38:15,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:38:15,784 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-10-15 18:38:15,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:38:15,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-15 18:38:15,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:38:15,785 INFO L225 Difference]: With dead ends: 47 [2020-10-15 18:38:15,785 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:38:15,785 INFO L677 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 [2020-10-15 18:38:15,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:38:15,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:38:15,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:38:15,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:38:15,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-15 18:38:15,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:38:15,787 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:38:15,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:38:15,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:38:15,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:38:15,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:38:15,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:38:15 BasicIcfg [2020-10-15 18:38:15,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:38:15,794 INFO L168 Benchmark]: Toolchain (without parser) took 4203.86 ms. Allocated memory was 251.1 MB in the beginning and 371.2 MB in the end (delta: 120.1 MB). Free memory was 206.3 MB in the beginning and 256.8 MB in the end (delta: -50.5 MB). Peak memory consumption was 69.6 MB. Max. memory is 14.2 GB. [2020-10-15 18:38:15,795 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:38:15,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.51 ms. Allocated memory was 251.1 MB in the beginning and 313.5 MB in the end (delta: 62.4 MB). Free memory was 206.3 MB in the beginning and 266.9 MB in the end (delta: -60.7 MB). Peak memory consumption was 29.3 MB. Max. memory is 14.2 GB. [2020-10-15 18:38:15,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.42 ms. Allocated memory is still 313.5 MB. Free memory was 266.9 MB in the beginning and 264.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:38:15,797 INFO L168 Benchmark]: Boogie Preprocessor took 30.68 ms. Allocated memory is still 313.5 MB. Free memory was 264.4 MB in the beginning and 261.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:38:15,798 INFO L168 Benchmark]: RCFGBuilder took 449.09 ms. Allocated memory is still 313.5 MB. Free memory was 261.9 MB in the beginning and 240.0 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:38:15,799 INFO L168 Benchmark]: TraceAbstraction took 3011.48 ms. Allocated memory was 313.5 MB in the beginning and 371.2 MB in the end (delta: 57.7 MB). Free memory was 240.0 MB in the beginning and 256.8 MB in the end (delta: -16.7 MB). Peak memory consumption was 40.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:38:15,803 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 658.51 ms. Allocated memory was 251.1 MB in the beginning and 313.5 MB in the end (delta: 62.4 MB). Free memory was 206.3 MB in the beginning and 266.9 MB in the end (delta: -60.7 MB). Peak memory consumption was 29.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.42 ms. Allocated memory is still 313.5 MB. Free memory was 266.9 MB in the beginning and 264.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 30.68 ms. Allocated memory is still 313.5 MB. Free memory was 264.4 MB in the beginning and 261.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 449.09 ms. Allocated memory is still 313.5 MB. Free memory was 261.9 MB in the beginning and 240.0 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3011.48 ms. Allocated memory was 313.5 MB in the beginning and 371.2 MB in the end (delta: 57.7 MB). Free memory was 240.0 MB in the beginning and 256.8 MB in the end (delta: -16.7 MB). Peak memory consumption was 40.9 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 831 VarBasedMoverChecksPositive, 46 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 58 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 77 PlacesBefore, 30 PlacesAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 2123 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 124 SDtfs, 130 SDslu, 169 SDs, 0 SdLazy, 101 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2534 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...