/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/safe015_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:49:44,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:49:44,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:49:44,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:49:44,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:49:44,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:49:44,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:49:44,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:49:44,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:49:44,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:49:44,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:49:44,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:49:44,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:49:44,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:49:44,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:49:44,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:49:44,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:49:44,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:49:44,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:49:44,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:49:44,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:49:44,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:49:44,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:49:44,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:49:44,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-05 22:49:44,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-05 22:49:44,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-05 22:49:44,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-05 22:49:44,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-05 22:49:44,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-05 22:49:44,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:49:44,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:49:44,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:49:44,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:49:44,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:49:44,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:49:44,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:49:44,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:49:44,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:49:44,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:49:44,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:49:44,364 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 [2020-10-05 22:49:44,406 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:49:44,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:49:44,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:49:44,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:49:44,410 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:49:44,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:49:44,410 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:49:44,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:49:44,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:49:44,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:49:44,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:49:44,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:49:44,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:49:44,413 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:49:44,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:49:44,413 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:49:44,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:49:44,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:49:44,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:49:44,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:49:44,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:49:44,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:49:44,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:49:44,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:49:44,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:49:44,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:49:44,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:49:44,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:49:44,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:49:44,416 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:49:44,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:49:44,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:49:44,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:49:44,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:49:44,772 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:49:44,773 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2020-10-05 22:49:44,852 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd93cad8/f6619af74f034c47ac5302f4049e01f0/FLAG9ed0202d9 [2020-10-05 22:49:45,400 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:49:45,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2020-10-05 22:49:45,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd93cad8/f6619af74f034c47ac5302f4049e01f0/FLAG9ed0202d9 [2020-10-05 22:49:45,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd93cad8/f6619af74f034c47ac5302f4049e01f0 [2020-10-05 22:49:45,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:49:45,702 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:49:45,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:49:45,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:49:45,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:49:45,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:49:45" (1/1) ... [2020-10-05 22:49:45,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@416d0f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:45, skipping insertion in model container [2020-10-05 22:49:45,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:49:45" (1/1) ... [2020-10-05 22:49:45,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:49:45,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:49:46,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:49:46,268 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:49:46,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:49:46,389 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:49:46,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46 WrapperNode [2020-10-05 22:49:46,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:49:46,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:49:46,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:49:46,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:49:46,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:49:46,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:49:46,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:49:46,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:49:46,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... [2020-10-05 22:49:46,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:49:46,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:49:46,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:49:46,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:49:46,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:49:46,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:49:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:49:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:49:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:49:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:49:46,547 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:49:46,547 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:49:46,548 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:49:46,548 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:49:46,549 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:49:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:49:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:49:46,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:49:46,552 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:49:46,889 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:49:46,889 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:49:46,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:49:46 BoogieIcfgContainer [2020-10-05 22:49:46,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:49:46,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:49:46,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:49:46,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:49:46,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:49:45" (1/3) ... [2020-10-05 22:49:46,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3023fc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:49:46, skipping insertion in model container [2020-10-05 22:49:46,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:46" (2/3) ... [2020-10-05 22:49:46,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3023fc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:49:46, skipping insertion in model container [2020-10-05 22:49:46,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:49:46" (3/3) ... [2020-10-05 22:49:46,900 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2020-10-05 22:49:46,909 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:49:46,910 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:49:46,917 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:49:46,918 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:49:46,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,952 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,956 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,956 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,956 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,957 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,958 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,958 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,958 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,958 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,959 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,959 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,963 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,964 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,964 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,964 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,976 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,977 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,993 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,994 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,994 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:46,994 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:47,014 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 22:49:47,033 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:49:47,033 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:49:47,033 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:49:47,033 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:49:47,033 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:49:47,033 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:49:47,034 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:49:47,034 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:49:47,049 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-05 22:49:47,052 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 22:49:47,098 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 22:49:47,099 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:49:47,108 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 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:49:47,111 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 22:49:47,137 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 22:49:47,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:49:47,138 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 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:49:47,140 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 22:49:47,141 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:49:48,770 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2826 [2020-10-05 22:49:48,770 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-10-05 22:49:48,775 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-05 22:49:48,802 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-05 22:49:48,805 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-05 22:49:48,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:49:48,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:48,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:48,815 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:48,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:48,821 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-10-05 22:49:48,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:48,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48170914] [2020-10-05 22:49:48,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:49,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:49,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48170914] [2020-10-05 22:49:49,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:49,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:49:49,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3020487] [2020-10-05 22:49:49,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:49,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:49,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:49,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,089 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-05 22:49:49,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:49,156 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-05 22:49:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:49,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:49:49,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:49,175 INFO L225 Difference]: With dead ends: 282 [2020-10-05 22:49:49,175 INFO L226 Difference]: Without dead ends: 218 [2020-10-05 22:49:49,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-05 22:49:49,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-05 22:49:49,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-05 22:49:49,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-05 22:49:49,249 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-05 22:49:49,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:49,250 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-05 22:49:49,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:49,250 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-05 22:49:49,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:49:49,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:49,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:49,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:49:49,252 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:49,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:49,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-10-05 22:49:49,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:49,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025382765] [2020-10-05 22:49:49,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:49,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:49,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025382765] [2020-10-05 22:49:49,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:49,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:49,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462658551] [2020-10-05 22:49:49,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:49,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:49,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:49,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,329 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-05 22:49:49,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:49,354 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-05 22:49:49,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:49,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-05 22:49:49,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:49,358 INFO L225 Difference]: With dead ends: 202 [2020-10-05 22:49:49,358 INFO L226 Difference]: Without dead ends: 202 [2020-10-05 22:49:49,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-05 22:49:49,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-05 22:49:49,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-05 22:49:49,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-05 22:49:49,381 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-05 22:49:49,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:49,381 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-05 22:49:49,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:49,382 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-05 22:49:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 22:49:49,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:49,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:49,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:49:49,384 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:49,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:49,384 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-10-05 22:49:49,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:49,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681301005] [2020-10-05 22:49:49,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:49,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681301005] [2020-10-05 22:49:49,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:49,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:49:49,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172406187] [2020-10-05 22:49:49,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:49,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:49,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:49,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,492 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-05 22:49:49,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:49,507 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-10-05 22:49:49,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:49,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-05 22:49:49,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:49,512 INFO L225 Difference]: With dead ends: 198 [2020-10-05 22:49:49,512 INFO L226 Difference]: Without dead ends: 198 [2020-10-05 22:49:49,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-05 22:49:49,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-05 22:49:49,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-05 22:49:49,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-10-05 22:49:49,536 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-10-05 22:49:49,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:49,536 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-10-05 22:49:49,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:49,537 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-10-05 22:49:49,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:49:49,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:49,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:49,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:49:49,539 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:49,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:49,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-10-05 22:49:49,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:49,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260763292] [2020-10-05 22:49:49,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:49,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:49,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260763292] [2020-10-05 22:49:49,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:49,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:49:49,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809570297] [2020-10-05 22:49:49,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:49,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:49,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:49,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,587 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-10-05 22:49:49,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:49,593 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-10-05 22:49:49,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:49,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:49:49,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:49,596 INFO L225 Difference]: With dead ends: 192 [2020-10-05 22:49:49,596 INFO L226 Difference]: Without dead ends: 192 [2020-10-05 22:49:49,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-05 22:49:49,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-10-05 22:49:49,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-05 22:49:49,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-10-05 22:49:49,609 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-10-05 22:49:49,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:49,610 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-10-05 22:49:49,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:49,610 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-10-05 22:49:49,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:49:49,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:49,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:49,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:49:49,613 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:49,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:49,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-10-05 22:49:49,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:49,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372358669] [2020-10-05 22:49:49,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:49,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:49,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372358669] [2020-10-05 22:49:49,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:49,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:49,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046970243] [2020-10-05 22:49:49,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:49,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:49,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:49,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:49,729 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 4 states. [2020-10-05 22:49:49,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:49,771 INFO L93 Difference]: Finished difference Result 224 states and 554 transitions. [2020-10-05 22:49:49,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:49,771 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:49:49,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:49,773 INFO L225 Difference]: With dead ends: 224 [2020-10-05 22:49:49,773 INFO L226 Difference]: Without dead ends: 160 [2020-10-05 22:49:49,774 INFO L675 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 [2020-10-05 22:49:49,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-05 22:49:49,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-05 22:49:49,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-05 22:49:49,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 383 transitions. [2020-10-05 22:49:49,782 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 383 transitions. Word has length 12 [2020-10-05 22:49:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:49,782 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 383 transitions. [2020-10-05 22:49:49,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:49,782 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-10-05 22:49:49,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:49:49,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:49,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:49,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:49:49,784 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:49,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:49,785 INFO L82 PathProgramCache]: Analyzing trace with hash 887113091, now seen corresponding path program 1 times [2020-10-05 22:49:49,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:49,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616499821] [2020-10-05 22:49:49,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:49,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:49,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616499821] [2020-10-05 22:49:49,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:49,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:49,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951970032] [2020-10-05 22:49:49,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:49:49,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:49,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:49:49,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:49:49,850 INFO L87 Difference]: Start difference. First operand 160 states and 383 transitions. Second operand 5 states. [2020-10-05 22:49:49,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:49,893 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-10-05 22:49:49,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:49:49,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 22:49:49,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:49,895 INFO L225 Difference]: With dead ends: 160 [2020-10-05 22:49:49,895 INFO L226 Difference]: Without dead ends: 123 [2020-10-05 22:49:49,895 INFO L675 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 [2020-10-05 22:49:49,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-05 22:49:49,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-05 22:49:49,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-05 22:49:49,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-05 22:49:49,901 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 13 [2020-10-05 22:49:49,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:49,901 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-05 22:49:49,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:49:49,902 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-05 22:49:49,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:49:49,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:49,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:49,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:49:49,904 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:49,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:49,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-10-05 22:49:49,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:49,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771522837] [2020-10-05 22:49:49,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:49,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:49,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771522837] [2020-10-05 22:49:49,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:49,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:49,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550824679] [2020-10-05 22:49:49,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:49:49,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:49,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:49:49,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,935 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-10-05 22:49:49,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:49,942 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-10-05 22:49:49,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:49:49,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-05 22:49:49,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:49,944 INFO L225 Difference]: With dead ends: 155 [2020-10-05 22:49:49,944 INFO L226 Difference]: Without dead ends: 124 [2020-10-05 22:49:49,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:49:49,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-05 22:49:49,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-10-05 22:49:49,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-05 22:49:49,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-10-05 22:49:49,949 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-10-05 22:49:49,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:49,949 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-10-05 22:49:49,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:49:49,950 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-10-05 22:49:49,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:49:49,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:49,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:49,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:49:49,951 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:49,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:49,952 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-10-05 22:49:49,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:49,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314350324] [2020-10-05 22:49:49,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:49,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314350324] [2020-10-05 22:49:49,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:49,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:49,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324877265] [2020-10-05 22:49:49,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:49,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:49,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:49,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:49,990 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-10-05 22:49:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:50,011 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-10-05 22:49:50,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:49:50,012 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-05 22:49:50,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:50,013 INFO L225 Difference]: With dead ends: 154 [2020-10-05 22:49:50,013 INFO L226 Difference]: Without dead ends: 116 [2020-10-05 22:49:50,014 INFO L675 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 [2020-10-05 22:49:50,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-05 22:49:50,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-10-05 22:49:50,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-05 22:49:50,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-10-05 22:49:50,018 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-10-05 22:49:50,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:50,018 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-10-05 22:49:50,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:50,019 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-10-05 22:49:50,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:49:50,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:50,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:50,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:49:50,020 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:50,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:50,021 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-10-05 22:49:50,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:50,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960656350] [2020-10-05 22:49:50,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:50,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:50,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960656350] [2020-10-05 22:49:50,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:50,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:49:50,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073672225] [2020-10-05 22:49:50,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 22:49:50,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:50,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 22:49:50,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:49:50,104 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 6 states. [2020-10-05 22:49:50,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:50,167 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-10-05 22:49:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:49:50,168 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-05 22:49:50,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:50,168 INFO L225 Difference]: With dead ends: 110 [2020-10-05 22:49:50,169 INFO L226 Difference]: Without dead ends: 38 [2020-10-05 22:49:50,170 INFO L675 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 [2020-10-05 22:49:50,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-05 22:49:50,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-05 22:49:50,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-05 22:49:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-10-05 22:49:50,172 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-10-05 22:49:50,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:50,173 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-10-05 22:49:50,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 22:49:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-10-05 22:49:50,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:49:50,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:50,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:50,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 22:49:50,174 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:50,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:50,174 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-10-05 22:49:50,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:50,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556827626] [2020-10-05 22:49:50,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:50,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:50,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556827626] [2020-10-05 22:49:50,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:50,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:49:50,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848135041] [2020-10-05 22:49:50,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:50,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:50,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:50,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:50,242 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-10-05 22:49:50,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:50,259 INFO L93 Difference]: Finished difference Result 51 states and 83 transitions. [2020-10-05 22:49:50,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:49:50,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-05 22:49:50,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:50,261 INFO L225 Difference]: With dead ends: 51 [2020-10-05 22:49:50,261 INFO L226 Difference]: Without dead ends: 30 [2020-10-05 22:49:50,261 INFO L675 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 [2020-10-05 22:49:50,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-05 22:49:50,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-05 22:49:50,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-05 22:49:50,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-05 22:49:50,263 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-05 22:49:50,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:50,264 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-05 22:49:50,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:50,264 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-05 22:49:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:49:50,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:49:50,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:49:50,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 22:49:50,265 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:49:50,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:49:50,265 INFO L82 PathProgramCache]: Analyzing trace with hash -34011261, now seen corresponding path program 2 times [2020-10-05 22:49:50,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:49:50,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133562599] [2020-10-05 22:49:50,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:49:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:49:50,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:49:50,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133562599] [2020-10-05 22:49:50,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:49:50,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:49:50,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403731539] [2020-10-05 22:49:50,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:49:50,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:49:50,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:49:50,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:49:50,299 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-05 22:49:50,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:49:50,314 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-05 22:49:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:49:50,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-05 22:49:50,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:49:50,315 INFO L225 Difference]: With dead ends: 29 [2020-10-05 22:49:50,315 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:49:50,315 INFO L675 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 [2020-10-05 22:49:50,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:49:50,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:49:50,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:49:50,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:49:50,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-05 22:49:50,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:49:50,317 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:49:50,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:49:50,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:49:50,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:49:50,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-05 22:49:50,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:49:50 BasicIcfg [2020-10-05 22:49:50,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:49:50,323 INFO L168 Benchmark]: Toolchain (without parser) took 4620.59 ms. Allocated memory was 140.5 MB in the beginning and 248.0 MB in the end (delta: 107.5 MB). Free memory was 101.0 MB in the beginning and 130.7 MB in the end (delta: -29.8 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,324 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.00 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 100.8 MB in the beginning and 158.6 MB in the end (delta: -57.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.27 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,326 INFO L168 Benchmark]: Boogie Preprocessor took 29.13 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 154.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,327 INFO L168 Benchmark]: RCFGBuilder took 420.27 ms. Allocated memory is still 201.9 MB. Free memory was 154.6 MB in the beginning and 132.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,328 INFO L168 Benchmark]: TraceAbstraction took 3427.62 ms. Allocated memory was 201.9 MB in the beginning and 248.0 MB in the end (delta: 46.1 MB). Free memory was 131.9 MB in the beginning and 130.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:49:50,332 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 687.00 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 100.8 MB in the beginning and 158.6 MB in the end (delta: -57.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.27 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.13 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 154.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 420.27 ms. Allocated memory is still 201.9 MB. Free memory was 154.6 MB in the beginning and 132.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3427.62 ms. Allocated memory was 201.9 MB in the beginning and 248.0 MB in the end (delta: 46.1 MB). Free memory was 131.9 MB in the beginning and 130.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 676 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2826 CheckedPairsTotal, 58 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 216 SDtfs, 131 SDslu, 232 SDs, 0 SdLazy, 130 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...