/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:54:52,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:54:52,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:54:52,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:54:52,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:54:52,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:54:52,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:54:52,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:54:52,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:54:52,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:54:52,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:54:52,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:54:52,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:54:52,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:54:52,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:54:52,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:54:52,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:54:52,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:54:52,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:54:52,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:54:52,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:54:52,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:54:52,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:54:52,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:54:52,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:54:52,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:54:52,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:54:52,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:54:52,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:54:52,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:54:52,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:54:52,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:54:52,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:54:52,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:54:52,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:54:52,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:54:52,527 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:54:52,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:54:52,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:54:52,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:54:52,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:54:52,561 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:54:52,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:54:52,561 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:54:52,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:54:52,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:54:52,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:54:52,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:54:52,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:54:52,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:54:52,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:54:52,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:54:52,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:54:52,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:54:52,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:54:52,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:54:52,564 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:54:52,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:54:52,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:54:52,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:54:52,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:54:52,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:54:52,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:54:52,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:54:52,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:54:52,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:54:52,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:54:52,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:54:52,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:54:52,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:54:52,953 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:54:52,953 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:54:52,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2020-11-09 12:54:53,048 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1d37191/c6f939bf6b394bd8a03c9f7914c97f8a/FLAG9b5c15103 [2020-11-09 12:54:53,782 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:54:53,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2020-11-09 12:54:53,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1d37191/c6f939bf6b394bd8a03c9f7914c97f8a/FLAG9b5c15103 [2020-11-09 12:54:54,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1d37191/c6f939bf6b394bd8a03c9f7914c97f8a [2020-11-09 12:54:54,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:54:54,033 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:54:54,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:54:54,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:54:54,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:54:54,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:54:54" (1/1) ... [2020-11-09 12:54:54,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5698ac04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54, skipping insertion in model container [2020-11-09 12:54:54,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:54:54" (1/1) ... [2020-11-09 12:54:54,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:54:54,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:54:54,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:54:54,485 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:54:54,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:54:54,712 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:54:54,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54 WrapperNode [2020-11-09 12:54:54,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:54:54,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:54:54,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:54:54,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:54:54,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54" (1/1) ... [2020-11-09 12:54:54,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54" (1/1) ... [2020-11-09 12:54:54,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:54:54,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:54:54,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:54:54,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:54:54,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54" (1/1) ... [2020-11-09 12:54:54,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54" (1/1) ... [2020-11-09 12:54:54,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54" (1/1) ... [2020-11-09 12:54:54,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54" (1/1) ... [2020-11-09 12:54:54,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54" (1/1) ... [2020-11-09 12:54:54,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54" (1/1) ... [2020-11-09 12:54:54,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54" (1/1) ... [2020-11-09 12:54:54,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:54:54,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:54:54,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:54:54,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:54:54,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:54:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:54:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:54:54,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:54:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:54:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:54:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:54:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:54:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:54:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:54:54,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:54:54,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:54:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:54:54,937 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 12:54:55,407 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:54:55,407 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:54:55,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:54:55 BoogieIcfgContainer [2020-11-09 12:54:55,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:54:55,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:54:55,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:54:55,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:54:55,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:54:54" (1/3) ... [2020-11-09 12:54:55,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195e36d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:54:55, skipping insertion in model container [2020-11-09 12:54:55,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:54" (2/3) ... [2020-11-09 12:54:55,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195e36d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:54:55, skipping insertion in model container [2020-11-09 12:54:55,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:54:55" (3/3) ... [2020-11-09 12:54:55,418 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_pso.oepc.i [2020-11-09 12:54:55,434 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:54:55,435 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:54:55,439 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:54:55,440 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:54:55,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,471 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,474 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,475 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,475 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,475 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,485 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,486 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:54:55,492 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:54:55,515 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-09 12:54:55,542 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:54:55,543 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:54:55,543 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:54:55,543 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:54:55,543 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:54:55,543 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:54:55,544 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:54:55,544 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:54:55,558 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:54:55,561 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 12:54:55,564 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 12:54:55,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-11-09 12:54:55,612 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-11-09 12:54:55,613 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:54:55,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-11-09 12:54:55,619 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-09 12:54:56,485 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-11-09 12:54:57,663 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-09 12:54:58,684 WARN L194 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 12:54:58,792 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:54:59,030 WARN L194 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 12:54:59,146 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:54:59,178 INFO L131 LiptonReduction]: Checked pairs total: 1418 [2020-11-09 12:54:59,178 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-11-09 12:54:59,185 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-11-09 12:54:59,198 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-11-09 12:54:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-11-09 12:54:59,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-09 12:54:59,206 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:59,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-09 12:54:59,208 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:59,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:59,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1338798449, now seen corresponding path program 1 times [2020-11-09 12:54:59,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:59,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462554387] [2020-11-09 12:54:59,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:59,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462554387] [2020-11-09 12:54:59,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:59,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:54:59,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153150114] [2020-11-09 12:54:59,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 12:54:59,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:59,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 12:54:59,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:54:59,414 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-11-09 12:54:59,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:59,434 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-11-09 12:54:59,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 12:54:59,436 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-09 12:54:59,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:59,446 INFO L225 Difference]: With dead ends: 90 [2020-11-09 12:54:59,447 INFO L226 Difference]: Without dead ends: 74 [2020-11-09 12:54:59,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:54:59,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-09 12:54:59,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-09 12:54:59,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-09 12:54:59,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-11-09 12:54:59,496 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-11-09 12:54:59,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:59,496 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-11-09 12:54:59,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 12:54:59,497 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-11-09 12:54:59,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 12:54:59,497 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:59,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:59,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:54:59,498 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:59,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:59,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1446900907, now seen corresponding path program 1 times [2020-11-09 12:54:59,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:59,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852692614] [2020-11-09 12:54:59,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:59,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852692614] [2020-11-09 12:54:59,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:59,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:54:59,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728203431] [2020-11-09 12:54:59,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:54:59,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:59,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:54:59,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:54:59,663 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-11-09 12:54:59,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:59,705 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-11-09 12:54:59,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:54:59,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-09 12:54:59,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:59,707 INFO L225 Difference]: With dead ends: 63 [2020-11-09 12:54:59,707 INFO L226 Difference]: Without dead ends: 47 [2020-11-09 12:54:59,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:54:59,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-09 12:54:59,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-09 12:54:59,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-09 12:54:59,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 79 transitions. [2020-11-09 12:54:59,714 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 79 transitions. Word has length 7 [2020-11-09 12:54:59,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:59,715 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 79 transitions. [2020-11-09 12:54:59,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:54:59,715 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2020-11-09 12:54:59,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 12:54:59,716 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:59,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:59,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:54:59,716 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:59,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:59,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1074461755, now seen corresponding path program 1 times [2020-11-09 12:54:59,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:59,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790172302] [2020-11-09 12:54:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:59,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:59,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790172302] [2020-11-09 12:54:59,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:59,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:54:59,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763429952] [2020-11-09 12:54:59,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:54:59,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:59,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:54:59,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:54:59,822 INFO L87 Difference]: Start difference. First operand 47 states and 79 transitions. Second operand 5 states. [2020-11-09 12:54:59,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:59,869 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2020-11-09 12:54:59,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:54:59,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-09 12:54:59,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:59,871 INFO L225 Difference]: With dead ends: 36 [2020-11-09 12:54:59,871 INFO L226 Difference]: Without dead ends: 29 [2020-11-09 12:54:59,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:54:59,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-09 12:54:59,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-09 12:54:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-09 12:54:59,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-11-09 12:54:59,876 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 10 [2020-11-09 12:54:59,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:59,876 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-11-09 12:54:59,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:54:59,876 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-11-09 12:54:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 12:54:59,877 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:59,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:59,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:54:59,878 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:59,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:59,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1774648449, now seen corresponding path program 1 times [2020-11-09 12:54:59,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:59,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62943596] [2020-11-09 12:54:59,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:54:59,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:54:59,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62943596] [2020-11-09 12:54:59,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:54:59,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:54:59,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732451438] [2020-11-09 12:54:59,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:54:59,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:54:59,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:54:59,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:54:59,939 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 5 states. [2020-11-09 12:54:59,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:54:59,968 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2020-11-09 12:54:59,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:54:59,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 12:54:59,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:54:59,969 INFO L225 Difference]: With dead ends: 37 [2020-11-09 12:54:59,970 INFO L226 Difference]: Without dead ends: 17 [2020-11-09 12:54:59,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:54:59,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-09 12:54:59,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-09 12:54:59,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-09 12:54:59,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-11-09 12:54:59,973 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13 [2020-11-09 12:54:59,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:54:59,973 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-11-09 12:54:59,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:54:59,973 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-11-09 12:54:59,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 12:54:59,974 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:54:59,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:54:59,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:54:59,974 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:54:59,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:54:59,975 INFO L82 PathProgramCache]: Analyzing trace with hash 290614237, now seen corresponding path program 2 times [2020-11-09 12:54:59,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:54:59,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223605280] [2020-11-09 12:54:59,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:54:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:00,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223605280] [2020-11-09 12:55:00,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:00,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:55:00,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055033404] [2020-11-09 12:55:00,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:55:00,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:00,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:55:00,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:55:00,030 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 5 states. [2020-11-09 12:55:00,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:00,052 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2020-11-09 12:55:00,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:55:00,052 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 12:55:00,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:00,053 INFO L225 Difference]: With dead ends: 16 [2020-11-09 12:55:00,053 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:55:00,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:55:00,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:55:00,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:55:00,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:55:00,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:55:00,054 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-09 12:55:00,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:00,055 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:55:00,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:55:00,055 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:55:00,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:55:00,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:55:00,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:55:00 BasicIcfg [2020-11-09 12:55:00,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:55:00,061 INFO L168 Benchmark]: Toolchain (without parser) took 6032.84 ms. Allocated memory was 169.9 MB in the beginning and 207.6 MB in the end (delta: 37.7 MB). Free memory was 149.2 MB in the beginning and 96.1 MB in the end (delta: 53.1 MB). Peak memory consumption was 90.2 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:00,061 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 169.9 MB. Free memory is still 141.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:55:00,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.46 ms. Allocated memory is still 169.9 MB. Free memory was 148.3 MB in the beginning and 133.6 MB in the end (delta: 14.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:00,063 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.87 ms. Allocated memory is still 169.9 MB. Free memory was 133.6 MB in the beginning and 131.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:00,064 INFO L168 Benchmark]: Boogie Preprocessor took 56.53 ms. Allocated memory is still 169.9 MB. Free memory was 131.5 MB in the beginning and 130.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:00,065 INFO L168 Benchmark]: RCFGBuilder took 551.04 ms. Allocated memory is still 169.9 MB. Free memory was 130.3 MB in the beginning and 110.6 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:00,066 INFO L168 Benchmark]: TraceAbstraction took 4647.73 ms. Allocated memory was 169.9 MB in the beginning and 207.6 MB in the end (delta: 37.7 MB). Free memory was 110.1 MB in the beginning and 96.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:00,070 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 169.9 MB. Free memory is still 141.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 678.46 ms. Allocated memory is still 169.9 MB. Free memory was 148.3 MB in the beginning and 133.6 MB in the end (delta: 14.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 82.87 ms. Allocated memory is still 169.9 MB. Free memory was 133.6 MB in the beginning and 131.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 56.53 ms. Allocated memory is still 169.9 MB. Free memory was 131.5 MB in the beginning and 130.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 551.04 ms. Allocated memory is still 169.9 MB. Free memory was 130.3 MB in the beginning and 110.6 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4647.73 ms. Allocated memory was 169.9 MB in the beginning and 207.6 MB in the end (delta: 37.7 MB). Free memory was 110.1 MB in the beginning and 96.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 525 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 5 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 36 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 63 TotalNumberOfCompositions, 1418 MoverChecksTotal - PositiveResult [Line: 17]: 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 71 SDtfs, 48 SDslu, 99 SDs, 0 SdLazy, 50 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1126 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...