/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 23:29:11,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 23:29:11,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 23:29:11,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 23:29:11,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 23:29:11,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 23:29:11,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 23:29:11,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 23:29:11,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 23:29:11,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 23:29:11,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 23:29:11,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 23:29:11,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 23:29:11,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 23:29:11,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 23:29:11,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 23:29:11,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 23:29:11,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 23:29:11,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 23:29:11,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 23:29:11,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 23:29:11,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 23:29:11,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 23:29:11,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 23:29:11,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-26 23:29:11,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-26 23:29:11,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-26 23:29:11,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-26 23:29:11,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-26 23:29:11,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-26 23:29:11,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 23:29:11,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 23:29:11,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 23:29:11,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 23:29:11,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 23:29:11,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 23:29:11,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 23:29:11,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 23:29:11,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 23:29:11,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 23:29:11,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 23:29:11,742 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-26 23:29:11,760 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 23:29:11,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 23:29:11,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 23:29:11,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 23:29:11,763 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 23:29:11,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 23:29:11,764 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 23:29:11,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 23:29:11,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 23:29:11,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 23:29:11,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 23:29:11,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 23:29:11,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 23:29:11,767 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 23:29:11,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 23:29:11,767 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 23:29:11,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 23:29:11,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 23:29:11,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 23:29:11,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 23:29:11,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 23:29:11,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:29:11,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 23:29:11,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 23:29:11,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 23:29:11,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 23:29:11,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 23:29:11,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 23:29:11,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 23:29:11,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 23:29:12,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 23:29:12,053 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 23:29:12,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 23:29:12,060 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 23:29:12,060 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 23:29:12,061 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2019-12-26 23:29:12,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4eb2e997/e578fe9bfd5f4693a4904615a2f892af/FLAGbadb26536 [2019-12-26 23:29:12,706 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 23:29:12,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2019-12-26 23:29:12,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4eb2e997/e578fe9bfd5f4693a4904615a2f892af/FLAGbadb26536 [2019-12-26 23:29:12,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4eb2e997/e578fe9bfd5f4693a4904615a2f892af [2019-12-26 23:29:12,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 23:29:12,959 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 23:29:12,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 23:29:12,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 23:29:12,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 23:29:12,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:29:12" (1/1) ... [2019-12-26 23:29:12,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a4e2dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:12, skipping insertion in model container [2019-12-26 23:29:12,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:29:12" (1/1) ... [2019-12-26 23:29:12,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 23:29:13,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 23:29:13,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:29:13,453 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 23:29:13,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:29:13,594 INFO L208 MainTranslator]: Completed translation [2019-12-26 23:29:13,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:13 WrapperNode [2019-12-26 23:29:13,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 23:29:13,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 23:29:13,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 23:29:13,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 23:29:13,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:13" (1/1) ... [2019-12-26 23:29:13,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:13" (1/1) ... [2019-12-26 23:29:13,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 23:29:13,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 23:29:13,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 23:29:13,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 23:29:13,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:13" (1/1) ... [2019-12-26 23:29:13,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:13" (1/1) ... [2019-12-26 23:29:13,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:13" (1/1) ... [2019-12-26 23:29:13,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:13" (1/1) ... [2019-12-26 23:29:13,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:13" (1/1) ... [2019-12-26 23:29:13,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:13" (1/1) ... [2019-12-26 23:29:13,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:13" (1/1) ... [2019-12-26 23:29:13,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 23:29:13,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 23:29:13,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 23:29:13,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 23:29:13,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:13" (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 [2019-12-26 23:29:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 23:29:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-26 23:29:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 23:29:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 23:29:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-26 23:29:13,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-26 23:29:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-26 23:29:13,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-26 23:29:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-26 23:29:13,739 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-26 23:29:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-26 23:29:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 23:29:13,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 23:29:13,741 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 23:29:14,125 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 23:29:14,126 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 23:29:14,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:29:14 BoogieIcfgContainer [2019-12-26 23:29:14,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 23:29:14,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 23:29:14,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 23:29:14,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 23:29:14,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 11:29:12" (1/3) ... [2019-12-26 23:29:14,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628b0f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:29:14, skipping insertion in model container [2019-12-26 23:29:14,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:29:13" (2/3) ... [2019-12-26 23:29:14,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628b0f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:29:14, skipping insertion in model container [2019-12-26 23:29:14,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:29:14" (3/3) ... [2019-12-26 23:29:14,137 INFO L109 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2019-12-26 23:29:14,146 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 23:29:14,146 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 23:29:14,154 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 23:29:14,155 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 23:29:14,184 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,184 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,184 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,185 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,185 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,185 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,186 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,186 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,186 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,187 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,187 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,187 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,188 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,188 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,188 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,188 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,189 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,189 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,193 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,193 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,194 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,194 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,202 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,203 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,203 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,203 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,209 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,210 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,210 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,210 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:29:14,226 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 23:29:14,243 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 23:29:14,243 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 23:29:14,244 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 23:29:14,244 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 23:29:14,244 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 23:29:14,244 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 23:29:14,244 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 23:29:14,245 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 23:29:14,259 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-26 23:29:14,261 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-26 23:29:14,307 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-26 23:29:14,307 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:29:14,313 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:29:14,316 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-26 23:29:14,347 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-26 23:29:14,349 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:29:14,350 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:29:14,353 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-26 23:29:14,354 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 23:29:15,533 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2019-12-26 23:29:15,861 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-26 23:29:15,934 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-12-26 23:29:15,935 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-26 23:29:15,938 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-26 23:29:15,949 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-26 23:29:15,951 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-26 23:29:15,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 23:29:15,958 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:29:15,959 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:29:15,960 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:29:15,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:29:15,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-12-26 23:29:15,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:29:15,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939855707] [2019-12-26 23:29:15,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:29:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:29:16,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:29:16,226 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939855707] [2019-12-26 23:29:16,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:29:16,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:29:16,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607647225] [2019-12-26 23:29:16,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:29:16,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:29:16,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:29:16,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:29:16,254 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-26 23:29:16,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:29:16,294 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-26 23:29:16,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:29:16,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 23:29:16,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:29:16,330 INFO L225 Difference]: With dead ends: 50 [2019-12-26 23:29:16,330 INFO L226 Difference]: Without dead ends: 34 [2019-12-26 23:29:16,332 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:29:16,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-26 23:29:16,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-26 23:29:16,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-26 23:29:16,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-26 23:29:16,382 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-26 23:29:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:29:16,383 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-26 23:29:16,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:29:16,384 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-26 23:29:16,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:29:16,386 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:29:16,386 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:29:16,386 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:29:16,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:29:16,387 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-12-26 23:29:16,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:29:16,388 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847037571] [2019-12-26 23:29:16,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:29:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:29:16,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:29:16,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847037571] [2019-12-26 23:29:16,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:29:16,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:29:16,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051949708] [2019-12-26 23:29:16,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:29:16,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:29:16,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:29:16,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:29:16,471 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-26 23:29:16,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:29:16,499 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-26 23:29:16,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:29:16,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-26 23:29:16,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:29:16,502 INFO L225 Difference]: With dead ends: 36 [2019-12-26 23:29:16,502 INFO L226 Difference]: Without dead ends: 28 [2019-12-26 23:29:16,505 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:29:16,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-26 23:29:16,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-26 23:29:16,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-26 23:29:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-26 23:29:16,516 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-26 23:29:16,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:29:16,516 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-26 23:29:16,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:29:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-26 23:29:16,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:29:16,517 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:29:16,518 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:29:16,518 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:29:16,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:29:16,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1542654109, now seen corresponding path program 1 times [2019-12-26 23:29:16,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:29:16,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234993258] [2019-12-26 23:29:16,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:29:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:29:16,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:29:16,602 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234993258] [2019-12-26 23:29:16,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:29:16,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:29:16,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799956609] [2019-12-26 23:29:16,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:29:16,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:29:16,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:29:16,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:29:16,604 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-26 23:29:16,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:29:16,610 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-26 23:29:16,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:29:16,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-26 23:29:16,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:29:16,611 INFO L225 Difference]: With dead ends: 27 [2019-12-26 23:29:16,611 INFO L226 Difference]: Without dead ends: 27 [2019-12-26 23:29:16,612 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:29:16,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-26 23:29:16,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-26 23:29:16,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-26 23:29:16,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-26 23:29:16,616 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-26 23:29:16,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:29:16,616 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-26 23:29:16,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:29:16,616 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-26 23:29:16,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:29:16,617 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:29:16,617 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:29:16,618 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:29:16,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:29:16,618 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-12-26 23:29:16,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:29:16,619 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135732883] [2019-12-26 23:29:16,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:29:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:29:16,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:29:16,680 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135732883] [2019-12-26 23:29:16,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:29:16,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:29:16,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532522461] [2019-12-26 23:29:16,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:29:16,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:29:16,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:29:16,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:29:16,682 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-26 23:29:16,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:29:16,708 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-26 23:29:16,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:29:16,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:29:16,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:29:16,709 INFO L225 Difference]: With dead ends: 33 [2019-12-26 23:29:16,709 INFO L226 Difference]: Without dead ends: 21 [2019-12-26 23:29:16,710 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:29:16,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-26 23:29:16,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-26 23:29:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-26 23:29:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2019-12-26 23:29:16,713 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 30 transitions. Word has length 11 [2019-12-26 23:29:16,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:29:16,713 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 30 transitions. [2019-12-26 23:29:16,714 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:29:16,714 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2019-12-26 23:29:16,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:29:16,714 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:29:16,714 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:29:16,715 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:29:16,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:29:16,715 INFO L82 PathProgramCache]: Analyzing trace with hash -577609367, now seen corresponding path program 2 times [2019-12-26 23:29:16,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:29:16,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508098736] [2019-12-26 23:29:16,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:29:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:29:16,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:29:16,770 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508098736] [2019-12-26 23:29:16,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:29:16,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 23:29:16,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630339660] [2019-12-26 23:29:16,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:29:16,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:29:16,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:29:16,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:29:16,774 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. Second operand 4 states. [2019-12-26 23:29:16,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:29:16,792 INFO L93 Difference]: Finished difference Result 20 states and 29 transitions. [2019-12-26 23:29:16,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:29:16,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:29:16,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:29:16,793 INFO L225 Difference]: With dead ends: 20 [2019-12-26 23:29:16,793 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 23:29:16,793 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:29:16,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 23:29:16,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 23:29:16,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 23:29:16,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 23:29:16,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 23:29:16,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:29:16,794 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 23:29:16,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:29:16,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 23:29:16,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 23:29:16,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 11:29:16 BasicIcfg [2019-12-26 23:29:16,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 23:29:16,802 INFO L168 Benchmark]: Toolchain (without parser) took 3843.58 ms. Allocated memory was 146.8 MB in the beginning and 245.4 MB in the end (delta: 98.6 MB). Free memory was 102.4 MB in the beginning and 133.3 MB in the end (delta: -30.9 MB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2019-12-26 23:29:16,803 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 146.8 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-26 23:29:16,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.78 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 102.0 MB in the beginning and 162.8 MB in the end (delta: -60.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-26 23:29:16,805 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.96 ms. Allocated memory is still 205.5 MB. Free memory was 162.8 MB in the beginning and 160.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-12-26 23:29:16,806 INFO L168 Benchmark]: Boogie Preprocessor took 24.85 ms. Allocated memory is still 205.5 MB. Free memory was 160.0 MB in the beginning and 159.0 MB in the end (delta: 950.5 kB). Peak memory consumption was 950.5 kB. Max. memory is 7.1 GB. [2019-12-26 23:29:16,807 INFO L168 Benchmark]: RCFGBuilder took 453.23 ms. Allocated memory is still 205.5 MB. Free memory was 159.0 MB in the beginning and 138.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-26 23:29:16,808 INFO L168 Benchmark]: TraceAbstraction took 2671.19 ms. Allocated memory was 205.5 MB in the beginning and 245.4 MB in the end (delta: 39.8 MB). Free memory was 138.1 MB in the beginning and 133.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. [2019-12-26 23:29:16,812 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 146.8 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 634.78 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 102.0 MB in the beginning and 162.8 MB in the end (delta: -60.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.96 ms. Allocated memory is still 205.5 MB. Free memory was 162.8 MB in the beginning and 160.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.85 ms. Allocated memory is still 205.5 MB. Free memory was 160.0 MB in the beginning and 159.0 MB in the end (delta: 950.5 kB). Peak memory consumption was 950.5 kB. Max. memory is 7.1 GB. * RCFGBuilder took 453.23 ms. Allocated memory is still 205.5 MB. Free memory was 159.0 MB in the beginning and 138.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2671.19 ms. Allocated memory was 205.5 MB in the beginning and 245.4 MB in the end (delta: 39.8 MB). Free memory was 138.1 MB in the beginning and 133.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 28 SDslu, 40 SDs, 0 SdLazy, 24 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1102 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...