/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/safe020_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:52:31,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:52:31,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:52:31,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:52:31,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:52:31,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:52:31,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:52:31,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:52:31,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:52:31,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:52:31,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:52:31,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:52:31,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:52:31,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:52:31,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:52:31,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:52:31,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:52:31,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:52:31,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:52:31,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:52:31,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:52:31,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:52:31,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:52:31,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:52:31,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 14:52:31,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 14:52:31,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 14:52:31,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 14:52:31,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 14:52:31,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 14:52:31,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:52:31,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:52:31,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:52:31,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:52:31,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:52:31,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:52:31,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:52:31,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:52:31,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:52:31,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:52:31,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:52:31,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 14:52:31,565 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:52:31,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:52:31,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:52:31,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:52:31,567 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:52:31,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:52:31,570 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:52:31,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:52:31,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:52:31,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:52:31,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:52:31,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:52:31,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:52:31,572 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:52:31,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:52:31,572 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:52:31,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:52:31,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:52:31,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:52:31,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:52:31,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:52:31,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:52:31,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:52:31,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:52:31,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:52:31,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:52:31,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:52:31,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:52:31,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:52:31,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:52:31,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:52:31,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:52:31,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:52:31,880 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:52:31,881 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:52:31,881 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i [2019-12-18 14:52:31,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dc0c3e51/c45390748c744d58b51e217301450a21/FLAGa2de547ed [2019-12-18 14:52:32,438 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:52:32,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i [2019-12-18 14:52:32,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dc0c3e51/c45390748c744d58b51e217301450a21/FLAGa2de547ed [2019-12-18 14:52:32,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dc0c3e51/c45390748c744d58b51e217301450a21 [2019-12-18 14:52:32,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:52:32,785 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:52:32,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:52:32,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:52:32,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:52:32,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:52:32" (1/1) ... [2019-12-18 14:52:32,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7398fa15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:32, skipping insertion in model container [2019-12-18 14:52:32,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:52:32" (1/1) ... [2019-12-18 14:52:32,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:52:32,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:52:33,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:52:33,373 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:52:33,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:52:33,529 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:52:33,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:33 WrapperNode [2019-12-18 14:52:33,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:52:33,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:52:33,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:52:33,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:52:33,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:33" (1/1) ... [2019-12-18 14:52:33,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:33" (1/1) ... [2019-12-18 14:52:33,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:52:33,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:52:33,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:52:33,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:52:33,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:33" (1/1) ... [2019-12-18 14:52:33,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:33" (1/1) ... [2019-12-18 14:52:33,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:33" (1/1) ... [2019-12-18 14:52:33,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:33" (1/1) ... [2019-12-18 14:52:33,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:33" (1/1) ... [2019-12-18 14:52:33,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:33" (1/1) ... [2019-12-18 14:52:33,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:33" (1/1) ... [2019-12-18 14:52:33,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:52:33,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:52:33,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:52:33,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:52:33,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:52:33,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:52:33,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:52:33,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:52:33,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:52:33,671 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:52:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:52:33,671 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:52:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:52:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:52:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:52:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:52:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:52:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:52:33,674 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 14:52:34,051 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:52:34,052 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:52:34,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:52:34 BoogieIcfgContainer [2019-12-18 14:52:34,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:52:34,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:52:34,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:52:34,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:52:34,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:52:32" (1/3) ... [2019-12-18 14:52:34,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486fab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:52:34, skipping insertion in model container [2019-12-18 14:52:34,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:52:33" (2/3) ... [2019-12-18 14:52:34,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486fab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:52:34, skipping insertion in model container [2019-12-18 14:52:34,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:52:34" (3/3) ... [2019-12-18 14:52:34,062 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_tso.opt.i [2019-12-18 14:52:34,071 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:52:34,071 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:52:34,078 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:52:34,079 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:52:34,108 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,108 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,108 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,109 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,109 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,109 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,110 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,110 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,110 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,111 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,111 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,111 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,112 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,112 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,112 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,112 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,113 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,113 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,117 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,117 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,118 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,118 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,123 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,126 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,126 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,127 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,139 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,139 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,139 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,140 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:52:34,154 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:52:34,175 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:52:34,176 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:52:34,176 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:52:34,176 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:52:34,176 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:52:34,177 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:52:34,177 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:52:34,178 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:52:34,195 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-18 14:52:34,198 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 14:52:34,237 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 14:52:34,237 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:52:34,244 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:52:34,248 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 14:52:34,264 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 14:52:34,265 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:52:34,266 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:52:34,268 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:52:34,269 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:52:35,839 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-18 14:52:35,978 INFO L206 etLargeBlockEncoding]: Checked pairs total: 479 [2019-12-18 14:52:35,978 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 14:52:35,982 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 14:52:35,992 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 14:52:35,995 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 14:52:36,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:52:36,002 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:52:36,003 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:52:36,003 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:52:36,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:52:36,009 INFO L82 PathProgramCache]: Analyzing trace with hash 492740166, now seen corresponding path program 1 times [2019-12-18 14:52:36,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:52:36,019 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340325143] [2019-12-18 14:52:36,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:52:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:52:36,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:52:36,229 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340325143] [2019-12-18 14:52:36,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:52:36,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:52:36,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580149444] [2019-12-18 14:52:36,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:52:36,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:52:36,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:52:36,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:52:36,257 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 14:52:36,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:52:36,297 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-18 14:52:36,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:52:36,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:52:36,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:52:36,329 INFO L225 Difference]: With dead ends: 44 [2019-12-18 14:52:36,329 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 14:52:36,334 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:52:36,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 14:52:36,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 14:52:36,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 14:52:36,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 14:52:36,383 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 14:52:36,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:52:36,384 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 14:52:36,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:52:36,385 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 14:52:36,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:52:36,387 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:52:36,387 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:52:36,388 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:52:36,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:52:36,388 INFO L82 PathProgramCache]: Analyzing trace with hash 709143484, now seen corresponding path program 1 times [2019-12-18 14:52:36,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:52:36,389 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758666336] [2019-12-18 14:52:36,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:52:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:52:36,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:52:36,528 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758666336] [2019-12-18 14:52:36,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:52:36,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:52:36,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226866120] [2019-12-18 14:52:36,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:52:36,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:52:36,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:52:36,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:52:36,531 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 14:52:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:52:36,537 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-18 14:52:36,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:52:36,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 14:52:36,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:52:36,539 INFO L225 Difference]: With dead ends: 34 [2019-12-18 14:52:36,539 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 14:52:36,540 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:52:36,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 14:52:36,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 14:52:36,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:52:36,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 14:52:36,546 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-18 14:52:36,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:52:36,547 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 14:52:36,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:52:36,547 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 14:52:36,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:52:36,548 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:52:36,548 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:52:36,548 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:52:36,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:52:36,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1904869198, now seen corresponding path program 1 times [2019-12-18 14:52:36,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:52:36,549 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216160287] [2019-12-18 14:52:36,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:52:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:52:36,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:52:36,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216160287] [2019-12-18 14:52:36,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:52:36,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:52:36,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280110202] [2019-12-18 14:52:36,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:52:36,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:52:36,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:52:36,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:52:36,598 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 14:52:36,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:52:36,611 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 14:52:36,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:52:36,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 14:52:36,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:52:36,612 INFO L225 Difference]: With dead ends: 36 [2019-12-18 14:52:36,613 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 14:52:36,613 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:52:36,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 14:52:36,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 14:52:36,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 14:52:36,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 14:52:36,619 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 14:52:36,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:52:36,620 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 14:52:36,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:52:36,620 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 14:52:36,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:52:36,621 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:52:36,621 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:52:36,622 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:52:36,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:52:36,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1078655690, now seen corresponding path program 1 times [2019-12-18 14:52:36,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:52:36,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157453544] [2019-12-18 14:52:36,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:52:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:52:36,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:52:36,711 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157453544] [2019-12-18 14:52:36,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:52:36,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:52:36,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741122791] [2019-12-18 14:52:36,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:52:36,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:52:36,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:52:36,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:52:36,713 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-18 14:52:36,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:52:36,735 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 14:52:36,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:52:36,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 14:52:36,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:52:36,736 INFO L225 Difference]: With dead ends: 25 [2019-12-18 14:52:36,737 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 14:52:36,737 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:52:36,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 14:52:36,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 14:52:36,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 14:52:36,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 14:52:36,741 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 14:52:36,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:52:36,741 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 14:52:36,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:52:36,741 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 14:52:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:52:36,742 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:52:36,742 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:52:36,742 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:52:36,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:52:36,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1824813225, now seen corresponding path program 1 times [2019-12-18 14:52:36,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:52:36,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881880897] [2019-12-18 14:52:36,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:52:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:52:36,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:52:36,802 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881880897] [2019-12-18 14:52:36,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:52:36,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:52:36,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898904587] [2019-12-18 14:52:36,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:52:36,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:52:36,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:52:36,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:52:36,804 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 14:52:36,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:52:36,821 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 14:52:36,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:52:36,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:52:36,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:52:36,822 INFO L225 Difference]: With dead ends: 16 [2019-12-18 14:52:36,822 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:52:36,822 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:52:36,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:52:36,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:52:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:52:36,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:52:36,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:52:36,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:52:36,824 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:52:36,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:52:36,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:52:36,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:52:36,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:52:36 BasicIcfg [2019-12-18 14:52:36,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:52:36,830 INFO L168 Benchmark]: Toolchain (without parser) took 4045.12 ms. Allocated memory was 143.7 MB in the beginning and 250.1 MB in the end (delta: 106.4 MB). Free memory was 99.7 MB in the beginning and 152.9 MB in the end (delta: -53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 7.1 GB. [2019-12-18 14:52:36,831 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-18 14:52:36,832 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.82 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 158.5 MB in the end (delta: -59.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-12-18 14:52:36,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.79 ms. Allocated memory is still 201.3 MB. Free memory was 158.5 MB in the beginning and 156.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:52:36,834 INFO L168 Benchmark]: Boogie Preprocessor took 24.69 ms. Allocated memory is still 201.3 MB. Free memory was 156.5 MB in the beginning and 154.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:52:36,835 INFO L168 Benchmark]: RCFGBuilder took 443.11 ms. Allocated memory is still 201.3 MB. Free memory was 154.4 MB in the beginning and 134.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-18 14:52:36,836 INFO L168 Benchmark]: TraceAbstraction took 2774.49 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 133.9 MB in the beginning and 152.9 MB in the end (delta: -19.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2019-12-18 14:52:36,840 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.82 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 158.5 MB in the end (delta: -59.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.79 ms. Allocated memory is still 201.3 MB. Free memory was 158.5 MB in the beginning and 156.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.69 ms. Allocated memory is still 201.3 MB. Free memory was 156.5 MB in the beginning and 154.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 443.11 ms. Allocated memory is still 201.3 MB. Free memory was 154.4 MB in the beginning and 134.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2774.49 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 133.9 MB in the beginning and 152.9 MB in the end (delta: -19.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 244 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 479 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 16 SDslu, 38 SDs, 0 SdLazy, 24 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 898 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...