/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:52:42,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:52:42,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:52:42,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:52:42,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:52:42,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:52:42,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:52:42,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:52:42,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:52:42,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:52:42,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:52:42,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:52:42,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:52:42,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:52:42,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:52:42,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:52:42,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:52:42,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:52:42,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:52:42,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:52:42,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:52:42,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:52:42,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:52:42,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:52:42,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:52:42,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:52:42,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:52:42,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:52:42,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:52:42,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:52:42,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:52:42,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:52:42,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:52:42,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:52:42,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:52:42,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:52:42,483 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-NoLbe.epf [2019-12-19 04:52:42,497 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:52:42,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:52:42,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:52:42,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:52:42,499 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:52:42,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:52:42,500 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:52:42,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:52:42,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:52:42,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:52:42,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:52:42,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:52:42,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:52:42,501 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:52:42,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:52:42,501 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:52:42,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:52:42,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:52:42,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:52:42,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:52:42,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:52:42,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:52:42,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:52:42,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:52:42,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:52:42,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:52:42,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:52:42,504 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:52:42,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:52:42,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:52:42,801 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:52:42,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:52:42,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:52:42,821 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:52:42,821 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:52:42,822 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2019-12-19 04:52:42,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94860274f/37640e9221cd4b378ee7c243f356b83e/FLAG1b3664c4b [2019-12-19 04:52:43,501 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:52:43,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2019-12-19 04:52:43,516 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94860274f/37640e9221cd4b378ee7c243f356b83e/FLAG1b3664c4b [2019-12-19 04:52:43,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94860274f/37640e9221cd4b378ee7c243f356b83e [2019-12-19 04:52:43,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:52:43,793 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:52:43,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:52:43,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:52:43,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:52:43,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:52:43" (1/1) ... [2019-12-19 04:52:43,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc6eb70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:43, skipping insertion in model container [2019-12-19 04:52:43,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:52:43" (1/1) ... [2019-12-19 04:52:43,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:52:43,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:52:44,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:52:44,402 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:52:44,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:52:44,557 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:52:44,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:44 WrapperNode [2019-12-19 04:52:44,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:52:44,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:52:44,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:52:44,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:52:44,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:44" (1/1) ... [2019-12-19 04:52:44,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:44" (1/1) ... [2019-12-19 04:52:44,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:52:44,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:52:44,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:52:44,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:52:44,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:44" (1/1) ... [2019-12-19 04:52:44,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:44" (1/1) ... [2019-12-19 04:52:44,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:44" (1/1) ... [2019-12-19 04:52:44,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:44" (1/1) ... [2019-12-19 04:52:44,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:44" (1/1) ... [2019-12-19 04:52:44,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:44" (1/1) ... [2019-12-19 04:52:44,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:44" (1/1) ... [2019-12-19 04:52:44,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:52:44,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:52:44,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:52:44,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:52:44,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:44" (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 [2019-12-19 04:52:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:52:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:52:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:52:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:52:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:52:44,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:52:44,716 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:52:44,716 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:52:44,716 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:52:44,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:52:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:52:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:52:44,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:52:44,721 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:52:45,078 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:52:45,078 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:52:45,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:52:45 BoogieIcfgContainer [2019-12-19 04:52:45,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:52:45,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:52:45,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:52:45,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:52:45,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:52:43" (1/3) ... [2019-12-19 04:52:45,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8c09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:52:45, skipping insertion in model container [2019-12-19 04:52:45,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:44" (2/3) ... [2019-12-19 04:52:45,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8c09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:52:45, skipping insertion in model container [2019-12-19 04:52:45,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:52:45" (3/3) ... [2019-12-19 04:52:45,089 INFO L109 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt.i [2019-12-19 04:52:45,100 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:52:45,100 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:52:45,110 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:52:45,111 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:52:45,140 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,141 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,141 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,141 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,142 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,142 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,143 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,143 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,143 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,146 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,147 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,147 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,147 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,148 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,148 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,148 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,148 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,149 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,153 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,153 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,154 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,154 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,162 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,162 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,162 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,163 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,167 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,167 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,168 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,168 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:45,191 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:52:45,211 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:52:45,211 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:52:45,211 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:52:45,211 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:52:45,211 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:52:45,212 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:52:45,212 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:52:45,212 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:52:45,222 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 52 transitions [2019-12-19 04:52:45,301 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1246 states. [2019-12-19 04:52:45,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states. [2019-12-19 04:52:45,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-19 04:52:45,321 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:45,323 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:45,323 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:45,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:45,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1245236198, now seen corresponding path program 1 times [2019-12-19 04:52:45,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:45,340 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591572544] [2019-12-19 04:52:45,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:45,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591572544] [2019-12-19 04:52:45,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:45,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:52:45,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586590014] [2019-12-19 04:52:45,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:52:45,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:45,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:52:45,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:52:45,817 INFO L87 Difference]: Start difference. First operand 1246 states. Second operand 4 states. [2019-12-19 04:52:45,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:45,953 INFO L93 Difference]: Finished difference Result 1293 states and 3959 transitions. [2019-12-19 04:52:45,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:52:45,955 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-12-19 04:52:45,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:45,986 INFO L225 Difference]: With dead ends: 1293 [2019-12-19 04:52:45,986 INFO L226 Difference]: Without dead ends: 599 [2019-12-19 04:52:45,990 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:52:46,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2019-12-19 04:52:46,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2019-12-19 04:52:46,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2019-12-19 04:52:46,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1774 transitions. [2019-12-19 04:52:46,115 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1774 transitions. Word has length 29 [2019-12-19 04:52:46,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:46,115 INFO L462 AbstractCegarLoop]: Abstraction has 599 states and 1774 transitions. [2019-12-19 04:52:46,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:52:46,116 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1774 transitions. [2019-12-19 04:52:46,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:52:46,123 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:46,123 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:46,123 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:46,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:46,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1351365510, now seen corresponding path program 1 times [2019-12-19 04:52:46,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:46,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629969791] [2019-12-19 04:52:46,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:46,294 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629969791] [2019-12-19 04:52:46,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:46,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:52:46,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234647003] [2019-12-19 04:52:46,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:52:46,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:46,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:52:46,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:52:46,298 INFO L87 Difference]: Start difference. First operand 599 states and 1774 transitions. Second operand 5 states. [2019-12-19 04:52:46,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:46,370 INFO L93 Difference]: Finished difference Result 599 states and 1693 transitions. [2019-12-19 04:52:46,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:52:46,371 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-19 04:52:46,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:46,375 INFO L225 Difference]: With dead ends: 599 [2019-12-19 04:52:46,376 INFO L226 Difference]: Without dead ends: 536 [2019-12-19 04:52:46,377 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:52:46,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-12-19 04:52:46,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-12-19 04:52:46,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-12-19 04:52:46,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1543 transitions. [2019-12-19 04:52:46,410 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1543 transitions. Word has length 30 [2019-12-19 04:52:46,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:46,410 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 1543 transitions. [2019-12-19 04:52:46,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:52:46,410 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1543 transitions. [2019-12-19 04:52:46,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:52:46,416 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:46,416 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:46,417 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:46,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:46,417 INFO L82 PathProgramCache]: Analyzing trace with hash -360601844, now seen corresponding path program 1 times [2019-12-19 04:52:46,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:46,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980853661] [2019-12-19 04:52:46,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:46,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980853661] [2019-12-19 04:52:46,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:46,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:52:46,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473362536] [2019-12-19 04:52:46,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:52:46,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:46,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:52:46,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:52:46,596 INFO L87 Difference]: Start difference. First operand 536 states and 1543 transitions. Second operand 6 states. [2019-12-19 04:52:46,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:46,699 INFO L93 Difference]: Finished difference Result 401 states and 1057 transitions. [2019-12-19 04:52:46,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:52:46,700 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-12-19 04:52:46,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:46,702 INFO L225 Difference]: With dead ends: 401 [2019-12-19 04:52:46,703 INFO L226 Difference]: Without dead ends: 347 [2019-12-19 04:52:46,703 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:52:46,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-12-19 04:52:46,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-12-19 04:52:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-12-19 04:52:46,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 913 transitions. [2019-12-19 04:52:46,716 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 913 transitions. Word has length 31 [2019-12-19 04:52:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:46,717 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 913 transitions. [2019-12-19 04:52:46,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:52:46,717 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 913 transitions. [2019-12-19 04:52:46,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:52:46,719 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:46,719 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:46,719 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:46,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:46,720 INFO L82 PathProgramCache]: Analyzing trace with hash -645162979, now seen corresponding path program 1 times [2019-12-19 04:52:46,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:46,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728846006] [2019-12-19 04:52:46,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:46,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:46,948 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728846006] [2019-12-19 04:52:46,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:46,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:52:46,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709785674] [2019-12-19 04:52:46,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:52:46,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:46,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:52:46,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:52:46,950 INFO L87 Difference]: Start difference. First operand 347 states and 913 transitions. Second operand 8 states. [2019-12-19 04:52:47,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:47,359 INFO L93 Difference]: Finished difference Result 1058 states and 2896 transitions. [2019-12-19 04:52:47,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-12-19 04:52:47,359 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-12-19 04:52:47,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:47,361 INFO L225 Difference]: With dead ends: 1058 [2019-12-19 04:52:47,362 INFO L226 Difference]: Without dead ends: 251 [2019-12-19 04:52:47,362 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2019-12-19 04:52:47,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-12-19 04:52:47,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2019-12-19 04:52:47,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-12-19 04:52:47,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 670 transitions. [2019-12-19 04:52:47,371 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 670 transitions. Word has length 32 [2019-12-19 04:52:47,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:47,372 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 670 transitions. [2019-12-19 04:52:47,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:52:47,372 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 670 transitions. [2019-12-19 04:52:47,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:52:47,373 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:47,373 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:47,374 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:47,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:47,374 INFO L82 PathProgramCache]: Analyzing trace with hash 853176457, now seen corresponding path program 2 times [2019-12-19 04:52:47,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:47,375 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121444830] [2019-12-19 04:52:47,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:47,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:47,566 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121444830] [2019-12-19 04:52:47,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:47,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:52:47,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866481533] [2019-12-19 04:52:47,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:52:47,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:47,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:52:47,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:52:47,569 INFO L87 Difference]: Start difference. First operand 251 states and 670 transitions. Second operand 8 states. [2019-12-19 04:52:47,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:47,677 INFO L93 Difference]: Finished difference Result 197 states and 508 transitions. [2019-12-19 04:52:47,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:52:47,679 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-12-19 04:52:47,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:47,679 INFO L225 Difference]: With dead ends: 197 [2019-12-19 04:52:47,679 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:52:47,680 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:52:47,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:52:47,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:52:47,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:52:47,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:52:47,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-12-19 04:52:47,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:47,681 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:52:47,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:52:47,681 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:52:47,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:52:47,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:52:47 BasicIcfg [2019-12-19 04:52:47,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:52:47,697 INFO L168 Benchmark]: Toolchain (without parser) took 3901.48 ms. Allocated memory was 138.9 MB in the beginning and 250.6 MB in the end (delta: 111.7 MB). Free memory was 102.9 MB in the beginning and 175.9 MB in the end (delta: -73.1 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:47,699 INFO L168 Benchmark]: CDTParser took 1.54 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 04:52:47,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.17 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.4 MB in the beginning and 159.9 MB in the end (delta: -57.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:47,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.17 ms. Allocated memory is still 202.9 MB. Free memory was 159.9 MB in the beginning and 157.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:47,713 INFO L168 Benchmark]: Boogie Preprocessor took 27.78 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 156.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:47,714 INFO L168 Benchmark]: RCFGBuilder took 433.45 ms. Allocated memory is still 202.9 MB. Free memory was 156.0 MB in the beginning and 136.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:47,716 INFO L168 Benchmark]: TraceAbstraction took 2611.21 ms. Allocated memory was 202.9 MB in the beginning and 250.6 MB in the end (delta: 47.7 MB). Free memory was 136.2 MB in the beginning and 175.9 MB in the end (delta: -39.7 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:47,725 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 764.17 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.4 MB in the beginning and 159.9 MB in the end (delta: -57.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.17 ms. Allocated memory is still 202.9 MB. Free memory was 159.9 MB in the beginning and 157.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.78 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 156.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 433.45 ms. Allocated memory is still 202.9 MB. Free memory was 156.0 MB in the beginning and 136.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2611.21 ms. Allocated memory was 202.9 MB in the beginning and 250.6 MB in the end (delta: 47.7 MB). Free memory was 136.2 MB in the beginning and 175.9 MB in the end (delta: -39.7 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 52 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 274 SDtfs, 354 SDslu, 710 SDs, 0 SdLazy, 113 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 13699 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...