/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/safe028_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 00:56:58,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 00:56:58,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 00:56:58,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 00:56:58,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 00:56:58,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 00:56:58,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 00:56:58,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 00:56:58,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 00:56:58,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 00:56:58,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 00:56:58,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 00:56:58,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 00:56:58,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 00:56:58,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 00:56:58,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 00:56:58,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 00:56:58,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 00:56:58,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 00:56:58,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 00:56:58,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 00:56:58,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 00:56:58,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 00:56:58,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 00:56:58,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-17 00:56:58,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-17 00:56:58,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-17 00:56:58,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-17 00:56:58,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-17 00:56:58,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-17 00:56:58,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 00:56:58,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 00:56:58,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 00:56:58,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 00:56:58,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 00:56:58,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 00:56:58,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 00:56:58,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 00:56:58,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 00:56:58,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 00:56:58,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 00:56:58,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-17 00:56:58,438 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 00:56:58,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 00:56:58,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 00:56:58,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 00:56:58,444 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 00:56:58,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 00:56:58,445 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 00:56:58,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 00:56:58,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 00:56:58,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 00:56:58,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 00:56:58,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 00:56:58,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 00:56:58,448 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 00:56:58,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 00:56:58,448 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 00:56:58,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 00:56:58,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 00:56:58,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 00:56:58,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 00:56:58,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 00:56:58,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:56:58,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 00:56:58,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 00:56:58,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 00:56:58,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 00:56:58,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 00:56:58,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 00:56:58,452 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 00:56:58,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 00:56:58,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 00:56:58,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 00:56:58,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 00:56:58,956 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 00:56:58,957 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 00:56:58,958 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2020-09-17 00:56:59,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86e0f6133/68b2c01ec4e54b439ee4d3d052f7cc91/FLAG42783a7bf [2020-09-17 00:56:59,691 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 00:56:59,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2020-09-17 00:56:59,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86e0f6133/68b2c01ec4e54b439ee4d3d052f7cc91/FLAG42783a7bf [2020-09-17 00:56:59,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86e0f6133/68b2c01ec4e54b439ee4d3d052f7cc91 [2020-09-17 00:56:59,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 00:56:59,943 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 00:56:59,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 00:56:59,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 00:56:59,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 00:56:59,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:56:59" (1/1) ... [2020-09-17 00:56:59,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eef29b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:56:59, skipping insertion in model container [2020-09-17 00:56:59,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:56:59" (1/1) ... [2020-09-17 00:56:59,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 00:57:00,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 00:57:00,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:57:00,634 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 00:57:00,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:57:00,810 INFO L208 MainTranslator]: Completed translation [2020-09-17 00:57:00,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:57:00 WrapperNode [2020-09-17 00:57:00,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 00:57:00,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 00:57:00,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 00:57:00,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 00:57:00,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:57:00" (1/1) ... [2020-09-17 00:57:00,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:57:00" (1/1) ... [2020-09-17 00:57:00,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 00:57:00,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 00:57:00,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 00:57:00,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 00:57:00,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:57:00" (1/1) ... [2020-09-17 00:57:00,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:57:00" (1/1) ... [2020-09-17 00:57:00,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:57:00" (1/1) ... [2020-09-17 00:57:00,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:57:00" (1/1) ... [2020-09-17 00:57:00,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:57:00" (1/1) ... [2020-09-17 00:57:00,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:57:00" (1/1) ... [2020-09-17 00:57:00,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:57:00" (1/1) ... [2020-09-17 00:57:00,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 00:57:00,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 00:57:00,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 00:57:00,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 00:57:00,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:57:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:57:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 00:57:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 00:57:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 00:57:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 00:57:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 00:57:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 00:57:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 00:57:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 00:57:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 00:57:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 00:57:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 00:57:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 00:57:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 00:57:01,015 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 00:57:01,504 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 00:57:01,505 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 00:57:01,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:57:01 BoogieIcfgContainer [2020-09-17 00:57:01,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 00:57:01,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 00:57:01,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 00:57:01,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 00:57:01,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 12:56:59" (1/3) ... [2020-09-17 00:57:01,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2d892f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:57:01, skipping insertion in model container [2020-09-17 00:57:01,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:57:00" (2/3) ... [2020-09-17 00:57:01,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2d892f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:57:01, skipping insertion in model container [2020-09-17 00:57:01,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:57:01" (3/3) ... [2020-09-17 00:57:01,521 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2020-09-17 00:57:01,533 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 00:57:01,534 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 00:57:01,544 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 00:57:01,545 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 00:57:01,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,575 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,575 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,576 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,576 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,577 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,577 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,578 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,579 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,579 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,579 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,579 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,584 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,584 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,585 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,595 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,596 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,601 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,602 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,602 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,602 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:57:01,627 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 00:57:01,653 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 00:57:01,653 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 00:57:01,653 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 00:57:01,654 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 00:57:01,654 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 00:57:01,654 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 00:57:01,654 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 00:57:01,654 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 00:57:01,672 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-09-17 00:57:01,674 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-17 00:57:01,723 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-17 00:57:01,724 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:57:01,730 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. [2020-09-17 00:57:01,733 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-17 00:57:01,755 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-17 00:57:01,755 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:57:01,756 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. [2020-09-17 00:57:01,759 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-09-17 00:57:01,760 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 00:57:03,732 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2037 [2020-09-17 00:57:03,733 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-09-17 00:57:03,739 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-09-17 00:57:03,779 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-09-17 00:57:03,782 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-09-17 00:57:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 00:57:03,794 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:57:03,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:57:03,795 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:57:03,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:57:03,807 INFO L82 PathProgramCache]: Analyzing trace with hash 2007579917, now seen corresponding path program 1 times [2020-09-17 00:57:03,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:57:03,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677732993] [2020-09-17 00:57:03,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:57:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:57:04,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:57:04,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677732993] [2020-09-17 00:57:04,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:57:04,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:57:04,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151619086] [2020-09-17 00:57:04,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:57:04,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:57:04,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:57:04,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:57:04,141 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-09-17 00:57:04,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:57:04,209 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-09-17 00:57:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:57:04,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-17 00:57:04,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:57:04,244 INFO L225 Difference]: With dead ends: 214 [2020-09-17 00:57:04,244 INFO L226 Difference]: Without dead ends: 166 [2020-09-17 00:57:04,247 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 [2020-09-17 00:57:04,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-17 00:57:04,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-09-17 00:57:04,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-09-17 00:57:04,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-09-17 00:57:04,352 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-09-17 00:57:04,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:57:04,356 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-09-17 00:57:04,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:57:04,356 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-09-17 00:57:04,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 00:57:04,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:57:04,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:57:04,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 00:57:04,359 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:57:04,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:57:04,360 INFO L82 PathProgramCache]: Analyzing trace with hash 2105434478, now seen corresponding path program 1 times [2020-09-17 00:57:04,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:57:04,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730463692] [2020-09-17 00:57:04,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:57:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:57:04,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:57:04,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730463692] [2020-09-17 00:57:04,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:57:04,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:57:04,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117088293] [2020-09-17 00:57:04,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:57:04,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:57:04,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:57:04,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:57:04,450 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-09-17 00:57:04,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:57:04,480 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-09-17 00:57:04,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:57:04,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-17 00:57:04,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:57:04,483 INFO L225 Difference]: With dead ends: 202 [2020-09-17 00:57:04,483 INFO L226 Difference]: Without dead ends: 130 [2020-09-17 00:57:04,484 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 [2020-09-17 00:57:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-09-17 00:57:04,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-09-17 00:57:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-17 00:57:04,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-09-17 00:57:04,495 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-09-17 00:57:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:57:04,495 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-09-17 00:57:04,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:57:04,496 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-09-17 00:57:04,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 00:57:04,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:57:04,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:57:04,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 00:57:04,498 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:57:04,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:57:04,498 INFO L82 PathProgramCache]: Analyzing trace with hash 857303980, now seen corresponding path program 1 times [2020-09-17 00:57:04,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:57:04,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185724909] [2020-09-17 00:57:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:57:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:57:04,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:57:04,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185724909] [2020-09-17 00:57:04,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:57:04,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:57:04,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156767185] [2020-09-17 00:57:04,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:57:04,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:57:04,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:57:04,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:57:04,662 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 4 states. [2020-09-17 00:57:04,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:57:04,729 INFO L93 Difference]: Finished difference Result 148 states and 336 transitions. [2020-09-17 00:57:04,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:57:04,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-17 00:57:04,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:57:04,731 INFO L225 Difference]: With dead ends: 148 [2020-09-17 00:57:04,731 INFO L226 Difference]: Without dead ends: 112 [2020-09-17 00:57:04,731 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 [2020-09-17 00:57:04,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-17 00:57:04,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-09-17 00:57:04,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-17 00:57:04,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 253 transitions. [2020-09-17 00:57:04,740 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 253 transitions. Word has length 10 [2020-09-17 00:57:04,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:57:04,741 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 253 transitions. [2020-09-17 00:57:04,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:57:04,741 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 253 transitions. [2020-09-17 00:57:04,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-17 00:57:04,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:57:04,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:57:04,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 00:57:04,743 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:57:04,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:57:04,743 INFO L82 PathProgramCache]: Analyzing trace with hash 806230555, now seen corresponding path program 1 times [2020-09-17 00:57:04,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:57:04,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817455002] [2020-09-17 00:57:04,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:57:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:57:04,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:57:04,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817455002] [2020-09-17 00:57:04,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:57:04,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:57:04,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966427082] [2020-09-17 00:57:04,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 00:57:04,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:57:04,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 00:57:04,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:57:04,845 INFO L87 Difference]: Start difference. First operand 112 states and 253 transitions. Second operand 5 states. [2020-09-17 00:57:04,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:57:04,906 INFO L93 Difference]: Finished difference Result 109 states and 227 transitions. [2020-09-17 00:57:04,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 00:57:04,908 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-17 00:57:04,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:57:04,909 INFO L225 Difference]: With dead ends: 109 [2020-09-17 00:57:04,910 INFO L226 Difference]: Without dead ends: 85 [2020-09-17 00:57:04,911 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 [2020-09-17 00:57:04,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-17 00:57:04,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-17 00:57:04,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-17 00:57:04,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-09-17 00:57:04,917 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 11 [2020-09-17 00:57:04,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:57:04,917 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-09-17 00:57:04,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 00:57:04,917 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-09-17 00:57:04,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 00:57:04,918 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:57:04,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:57:04,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 00:57:04,919 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:57:04,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:57:04,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1664906609, now seen corresponding path program 1 times [2020-09-17 00:57:04,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:57:04,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476514373] [2020-09-17 00:57:04,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:57:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:57:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:57:05,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476514373] [2020-09-17 00:57:05,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:57:05,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 00:57:05,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540671720] [2020-09-17 00:57:05,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-17 00:57:05,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:57:05,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-17 00:57:05,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 00:57:05,002 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-09-17 00:57:05,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:57:05,062 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-09-17 00:57:05,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 00:57:05,063 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-09-17 00:57:05,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:57:05,065 INFO L225 Difference]: With dead ends: 80 [2020-09-17 00:57:05,065 INFO L226 Difference]: Without dead ends: 72 [2020-09-17 00:57:05,065 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 [2020-09-17 00:57:05,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-17 00:57:05,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-09-17 00:57:05,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-17 00:57:05,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-09-17 00:57:05,071 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-09-17 00:57:05,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:57:05,071 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-09-17 00:57:05,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-17 00:57:05,071 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-09-17 00:57:05,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-17 00:57:05,072 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:57:05,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:57:05,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 00:57:05,073 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:57:05,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:57:05,073 INFO L82 PathProgramCache]: Analyzing trace with hash 399497030, now seen corresponding path program 1 times [2020-09-17 00:57:05,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:57:05,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029877223] [2020-09-17 00:57:05,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:57:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:57:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:57:05,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029877223] [2020-09-17 00:57:05,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:57:05,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:57:05,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331602918] [2020-09-17 00:57:05,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:57:05,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:57:05,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:57:05,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:57:05,135 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-09-17 00:57:05,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:57:05,159 INFO L93 Difference]: Finished difference Result 97 states and 192 transitions. [2020-09-17 00:57:05,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:57:05,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-17 00:57:05,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:57:05,160 INFO L225 Difference]: With dead ends: 97 [2020-09-17 00:57:05,160 INFO L226 Difference]: Without dead ends: 48 [2020-09-17 00:57:05,160 INFO L675 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 [2020-09-17 00:57:05,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-17 00:57:05,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-17 00:57:05,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-17 00:57:05,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-09-17 00:57:05,163 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-09-17 00:57:05,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:57:05,163 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-09-17 00:57:05,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:57:05,164 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-09-17 00:57:05,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-17 00:57:05,164 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:57:05,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:57:05,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 00:57:05,165 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:57:05,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:57:05,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1410540376, now seen corresponding path program 2 times [2020-09-17 00:57:05,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:57:05,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410794730] [2020-09-17 00:57:05,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:57:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:57:05,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:57:05,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410794730] [2020-09-17 00:57:05,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:57:05,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:57:05,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123394545] [2020-09-17 00:57:05,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:57:05,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:57:05,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:57:05,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:57:05,226 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-09-17 00:57:05,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:57:05,237 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-09-17 00:57:05,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:57:05,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-17 00:57:05,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:57:05,238 INFO L225 Difference]: With dead ends: 47 [2020-09-17 00:57:05,238 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 00:57:05,238 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 [2020-09-17 00:57:05,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 00:57:05,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 00:57:05,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 00:57:05,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 00:57:05,239 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-17 00:57:05,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:57:05,240 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 00:57:05,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:57:05,240 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 00:57:05,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 00:57:05,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 00:57:05,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 12:57:05 BasicIcfg [2020-09-17 00:57:05,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 00:57:05,249 INFO L168 Benchmark]: Toolchain (without parser) took 5308.58 ms. Allocated memory was 141.0 MB in the beginning and 245.9 MB in the end (delta: 104.9 MB). Free memory was 103.0 MB in the beginning and 150.0 MB in the end (delta: -47.1 MB). Peak memory consumption was 57.8 MB. Max. memory is 7.1 GB. [2020-09-17 00:57:05,250 INFO L168 Benchmark]: CDTParser took 1.51 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 00:57:05,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 867.05 ms. Allocated memory was 141.0 MB in the beginning and 207.1 MB in the end (delta: 66.1 MB). Free memory was 102.5 MB in the beginning and 165.0 MB in the end (delta: -62.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-09-17 00:57:05,252 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.95 ms. Allocated memory is still 207.1 MB. Free memory was 165.0 MB in the beginning and 162.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-17 00:57:05,253 INFO L168 Benchmark]: Boogie Preprocessor took 49.05 ms. Allocated memory is still 207.1 MB. Free memory was 162.4 MB in the beginning and 161.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-17 00:57:05,253 INFO L168 Benchmark]: RCFGBuilder took 583.38 ms. Allocated memory is still 207.1 MB. Free memory was 161.1 MB in the beginning and 139.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-17 00:57:05,254 INFO L168 Benchmark]: TraceAbstraction took 3733.21 ms. Allocated memory was 207.1 MB in the beginning and 245.9 MB in the end (delta: 38.8 MB). Free memory was 138.5 MB in the beginning and 150.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-09-17 00:57:05,259 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 867.05 ms. Allocated memory was 141.0 MB in the beginning and 207.1 MB in the end (delta: 66.1 MB). Free memory was 102.5 MB in the beginning and 165.0 MB in the end (delta: -62.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.95 ms. Allocated memory is still 207.1 MB. Free memory was 165.0 MB in the beginning and 162.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.05 ms. Allocated memory is still 207.1 MB. Free memory was 162.4 MB in the beginning and 161.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 583.38 ms. Allocated memory is still 207.1 MB. Free memory was 161.1 MB in the beginning and 139.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3733.21 ms. Allocated memory was 207.1 MB in the beginning and 245.9 MB in the end (delta: 38.8 MB). Free memory was 138.5 MB in the beginning and 150.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 77 ProgramPointsBefore, 30 ProgramPointsAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 644 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 2037 CheckedPairsTotal, 54 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: 3.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s 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...