/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:10:24,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:10:24,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:10:24,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:10:24,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:10:24,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:10:24,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:10:24,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:10:24,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:10:24,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:10:24,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:10:24,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:10:24,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:10:24,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:10:24,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:10:24,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:10:24,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:10:24,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:10:24,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:10:24,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:10:24,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:10:24,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:10:24,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:10:24,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:10:24,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 19:10:24,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 19:10:24,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 19:10:24,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 19:10:24,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 19:10:24,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 19:10:24,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:10:24,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:10:24,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:10:24,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:10:24,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:10:24,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:10:24,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:10:24,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:10:24,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:10:24,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:10:24,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:10:24,504 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-18 19:10:24,518 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:10:24,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:10:24,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:10:24,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:10:24,520 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:10:24,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:10:24,520 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:10:24,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:10:24,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:10:24,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:10:24,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:10:24,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:10:24,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:10:24,522 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:10:24,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:10:24,522 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:10:24,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:10:24,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:10:24,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:10:24,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:10:24,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:10:24,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:10:24,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:10:24,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:10:24,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:10:24,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:10:24,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:10:24,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:10:24,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:10:24,813 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:10:24,828 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:10:24,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:10:24,833 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:10:24,833 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:10:24,834 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2019-12-18 19:10:24,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e992a2aaf/18cc658280b142929c88f47915dcacdf/FLAGcb1d71bb9 [2019-12-18 19:10:25,475 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:10:25,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2019-12-18 19:10:25,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e992a2aaf/18cc658280b142929c88f47915dcacdf/FLAGcb1d71bb9 [2019-12-18 19:10:25,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e992a2aaf/18cc658280b142929c88f47915dcacdf [2019-12-18 19:10:25,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:10:25,746 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:10:25,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:10:25,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:10:25,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:10:25,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:10:25" (1/1) ... [2019-12-18 19:10:25,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b23b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:25, skipping insertion in model container [2019-12-18 19:10:25,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:10:25" (1/1) ... [2019-12-18 19:10:25,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:10:25,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:10:26,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:10:26,304 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:10:26,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:10:26,471 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:10:26,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:26 WrapperNode [2019-12-18 19:10:26,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:10:26,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:10:26,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:10:26,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:10:26,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:26" (1/1) ... [2019-12-18 19:10:26,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:26" (1/1) ... [2019-12-18 19:10:26,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:10:26,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:10:26,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:10:26,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:10:26,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:26" (1/1) ... [2019-12-18 19:10:26,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:26" (1/1) ... [2019-12-18 19:10:26,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:26" (1/1) ... [2019-12-18 19:10:26,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:26" (1/1) ... [2019-12-18 19:10:26,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:26" (1/1) ... [2019-12-18 19:10:26,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:26" (1/1) ... [2019-12-18 19:10:26,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:26" (1/1) ... [2019-12-18 19:10:26,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:10:26,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:10:26,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:10:26,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:10:26,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:10:26,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:10:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 19:10:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:10:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:10:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 19:10:26,608 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 19:10:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 19:10:26,609 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 19:10:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 19:10:26,609 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 19:10:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 19:10:26,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:10:26,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:10:26,611 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 19:10:26,928 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:10:26,928 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 19:10:26,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:10:26 BoogieIcfgContainer [2019-12-18 19:10:26,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:10:26,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:10:26,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:10:26,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:10:26,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:10:25" (1/3) ... [2019-12-18 19:10:26,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75591514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:10:26, skipping insertion in model container [2019-12-18 19:10:26,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:26" (2/3) ... [2019-12-18 19:10:26,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75591514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:10:26, skipping insertion in model container [2019-12-18 19:10:26,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:10:26" (3/3) ... [2019-12-18 19:10:26,938 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_tso.oepc.i [2019-12-18 19:10:26,948 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:10:26,948 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:10:26,955 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 19:10:26,956 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:10:26,986 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,987 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,987 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,988 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,988 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,988 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,989 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,990 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,990 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,990 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,991 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,992 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,996 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,997 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,997 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:26,997 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:27,010 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:27,011 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:27,011 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:27,011 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:27,016 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:27,017 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:27,017 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:27,017 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:27,037 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 19:10:27,060 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:10:27,060 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:10:27,060 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:10:27,061 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:10:27,061 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:10:27,061 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:10:27,061 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:10:27,061 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:10:27,073 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 19:10:27,075 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 19:10:27,116 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 19:10:27,116 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:10:27,124 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 19:10:27,129 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 19:10:27,147 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 19:10:27,148 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:10:27,150 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 19:10:27,152 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 19:10:27,153 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 19:10:28,802 INFO L206 etLargeBlockEncoding]: Checked pairs total: 429 [2019-12-18 19:10:28,802 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-18 19:10:28,806 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 19:10:28,816 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 19:10:28,818 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 19:10:28,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 19:10:28,825 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:28,826 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:28,827 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:28,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:28,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1861325362, now seen corresponding path program 1 times [2019-12-18 19:10:28,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:28,843 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477402360] [2019-12-18 19:10:28,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:29,061 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 19:10:29,062 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477402360] [2019-12-18 19:10:29,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:29,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:10:29,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559960807] [2019-12-18 19:10:29,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:10:29,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:29,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:10:29,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:10:29,087 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 19:10:29,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:29,116 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 19:10:29,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:10:29,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 19:10:29,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:29,130 INFO L225 Difference]: With dead ends: 42 [2019-12-18 19:10:29,130 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 19:10:29,132 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 19:10:29,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 19:10:29,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 19:10:29,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 19:10:29,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 19:10:29,171 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 19:10:29,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:29,172 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 19:10:29,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:10:29,173 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 19:10:29,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 19:10:29,174 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:29,174 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:29,174 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:29,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:29,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1866511351, now seen corresponding path program 1 times [2019-12-18 19:10:29,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:29,175 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819436901] [2019-12-18 19:10:29,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:29,254 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 19:10:29,255 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819436901] [2019-12-18 19:10:29,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:29,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:10:29,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542982581] [2019-12-18 19:10:29,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:10:29,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:29,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:10:29,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:10:29,258 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 19:10:29,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:29,281 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 19:10:29,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:10:29,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 19:10:29,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:29,283 INFO L225 Difference]: With dead ends: 36 [2019-12-18 19:10:29,283 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 19:10:29,284 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 19:10:29,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 19:10:29,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 19:10:29,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 19:10:29,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 19:10:29,289 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 19:10:29,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:29,289 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 19:10:29,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:10:29,289 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 19:10:29,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 19:10:29,290 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:29,290 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:29,290 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:29,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:29,291 INFO L82 PathProgramCache]: Analyzing trace with hash 2027276793, now seen corresponding path program 1 times [2019-12-18 19:10:29,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:29,291 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947230363] [2019-12-18 19:10:29,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:29,458 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 19:10:29,459 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947230363] [2019-12-18 19:10:29,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:29,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:10:29,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161821663] [2019-12-18 19:10:29,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 19:10:29,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:29,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 19:10:29,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:10:29,461 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 5 states. [2019-12-18 19:10:29,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:29,501 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 19:10:29,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 19:10:29,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-18 19:10:29,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:29,502 INFO L225 Difference]: With dead ends: 25 [2019-12-18 19:10:29,502 INFO L226 Difference]: Without dead ends: 19 [2019-12-18 19:10:29,502 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-18 19:10:29,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-18 19:10:29,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-18 19:10:29,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-18 19:10:29,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-12-18 19:10:29,506 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 10 [2019-12-18 19:10:29,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:29,506 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-18 19:10:29,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 19:10:29,507 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-12-18 19:10:29,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 19:10:29,507 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:29,507 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:29,508 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:29,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:29,508 INFO L82 PathProgramCache]: Analyzing trace with hash 2029948683, now seen corresponding path program 2 times [2019-12-18 19:10:29,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:29,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587859972] [2019-12-18 19:10:29,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:29,598 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 19:10:29,599 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587859972] [2019-12-18 19:10:29,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:29,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 19:10:29,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60459866] [2019-12-18 19:10:29,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 19:10:29,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:29,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 19:10:29,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 19:10:29,601 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 6 states. [2019-12-18 19:10:29,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:29,684 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-12-18 19:10:29,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 19:10:29,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 19:10:29,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:29,685 INFO L225 Difference]: With dead ends: 19 [2019-12-18 19:10:29,685 INFO L226 Difference]: Without dead ends: 16 [2019-12-18 19:10:29,686 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-18 19:10:29,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-18 19:10:29,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-18 19:10:29,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-18 19:10:29,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-18 19:10:29,689 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-18 19:10:29,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:29,689 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-18 19:10:29,690 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 19:10:29,690 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-18 19:10:29,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:10:29,690 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:29,690 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:29,691 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:29,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:29,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1498585343, now seen corresponding path program 1 times [2019-12-18 19:10:29,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:29,692 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41330229] [2019-12-18 19:10:29,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:29,729 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 19:10:29,730 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41330229] [2019-12-18 19:10:29,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:29,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:10:29,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896386471] [2019-12-18 19:10:29,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 19:10:29,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:29,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 19:10:29,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 19:10:29,732 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-18 19:10:29,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:29,747 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-18 19:10:29,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 19:10:29,747 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 19:10:29,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:29,748 INFO L225 Difference]: With dead ends: 18 [2019-12-18 19:10:29,748 INFO L226 Difference]: Without dead ends: 12 [2019-12-18 19:10:29,748 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 19:10:29,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-18 19:10:29,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-18 19:10:29,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-18 19:10:29,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-18 19:10:29,751 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-18 19:10:29,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:29,751 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-18 19:10:29,751 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 19:10:29,752 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-18 19:10:29,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:10:29,752 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:29,752 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:29,753 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:29,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:29,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1496019473, now seen corresponding path program 2 times [2019-12-18 19:10:29,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:29,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060443440] [2019-12-18 19:10:29,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:29,789 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 19:10:29,789 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060443440] [2019-12-18 19:10:29,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:29,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:10:29,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555904353] [2019-12-18 19:10:29,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 19:10:29,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:29,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 19:10:29,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 19:10:29,791 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-18 19:10:29,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:29,830 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-18 19:10:29,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 19:10:29,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 19:10:29,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:29,831 INFO L225 Difference]: With dead ends: 11 [2019-12-18 19:10:29,831 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 19:10:29,831 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 19:10:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 19:10:29,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 19:10:29,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 19:10:29,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 19:10:29,832 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 19:10:29,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:29,832 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 19:10:29,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 19:10:29,832 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 19:10:29,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 19:10:29,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:10:29 BasicIcfg [2019-12-18 19:10:29,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:10:29,839 INFO L168 Benchmark]: Toolchain (without parser) took 4092.91 ms. Allocated memory was 143.1 MB in the beginning and 251.7 MB in the end (delta: 108.5 MB). Free memory was 99.4 MB in the beginning and 121.5 MB in the end (delta: -22.1 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:29,840 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory is still 119.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-18 19:10:29,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.75 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 99.0 MB in the beginning and 159.1 MB in the end (delta: -60.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:29,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.66 ms. Allocated memory is still 200.8 MB. Free memory was 159.1 MB in the beginning and 156.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:29,842 INFO L168 Benchmark]: Boogie Preprocessor took 26.22 ms. Allocated memory is still 200.8 MB. Free memory was 156.1 MB in the beginning and 155.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:29,843 INFO L168 Benchmark]: RCFGBuilder took 382.52 ms. Allocated memory is still 200.8 MB. Free memory was 155.1 MB in the beginning and 134.5 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:29,844 INFO L168 Benchmark]: TraceAbstraction took 2904.88 ms. Allocated memory was 200.8 MB in the beginning and 251.7 MB in the end (delta: 50.9 MB). Free memory was 134.5 MB in the beginning and 121.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:29,849 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory is still 119.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 724.75 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 99.0 MB in the beginning and 159.1 MB in the end (delta: -60.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.66 ms. Allocated memory is still 200.8 MB. Free memory was 159.1 MB in the beginning and 156.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.22 ms. Allocated memory is still 200.8 MB. Free memory was 156.1 MB in the beginning and 155.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 382.52 ms. Allocated memory is still 200.8 MB. Free memory was 155.1 MB in the beginning and 134.5 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2904.88 ms. Allocated memory was 200.8 MB in the beginning and 251.7 MB in the end (delta: 50.9 MB). Free memory was 134.5 MB in the beginning and 121.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 223 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 429 CheckedPairsTotal, 46 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 35 SDslu, 48 SDs, 0 SdLazy, 52 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1314 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...