/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:09:40,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:09:40,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:09:40,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:09:40,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:09:40,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:09:40,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:09:40,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:09:41,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:09:41,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:09:41,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:09:41,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:09:41,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:09:41,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:09:41,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:09:41,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:09:41,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:09:41,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:09:41,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:09:41,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:09:41,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:09:41,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:09:41,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:09:41,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:09:41,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 08:09:41,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 08:09:41,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 08:09:41,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 08:09:41,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 08:09:41,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 08:09:41,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:09:41,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:09:41,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:09:41,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:09:41,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:09:41,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:09:41,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:09:41,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:09:41,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:09:41,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:09:41,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:09:41,049 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-27 08:09:41,081 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:09:41,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:09:41,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:09:41,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:09:41,082 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:09:41,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:09:41,088 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:09:41,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:09:41,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:09:41,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:09:41,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:09:41,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:09:41,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:09:41,089 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:09:41,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:09:41,090 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:09:41,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:09:41,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:09:41,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:09:41,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:09:41,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:09:41,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:09:41,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:09:41,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:09:41,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:09:41,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:09:41,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:09:41,096 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 08:09:41,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:09:41,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:09:41,389 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:09:41,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:09:41,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:09:41,413 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:09:41,413 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:09:41,415 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2019-12-27 08:09:41,485 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea059e7e5/209dbe422eb14119988edc2e9caf315c/FLAG1b02ce520 [2019-12-27 08:09:42,026 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:09:42,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2019-12-27 08:09:42,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea059e7e5/209dbe422eb14119988edc2e9caf315c/FLAG1b02ce520 [2019-12-27 08:09:42,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea059e7e5/209dbe422eb14119988edc2e9caf315c [2019-12-27 08:09:42,299 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:09:42,301 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:09:42,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:09:42,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:09:42,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:09:42,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:09:42" (1/1) ... [2019-12-27 08:09:42,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e24b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:42, skipping insertion in model container [2019-12-27 08:09:42,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:09:42" (1/1) ... [2019-12-27 08:09:42,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:09:42,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:09:42,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:09:42,922 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:09:42,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:09:43,083 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:09:43,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:43 WrapperNode [2019-12-27 08:09:43,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:09:43,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:09:43,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:09:43,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:09:43,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:43" (1/1) ... [2019-12-27 08:09:43,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:43" (1/1) ... [2019-12-27 08:09:43,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:09:43,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:09:43,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:09:43,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:09:43,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:43" (1/1) ... [2019-12-27 08:09:43,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:43" (1/1) ... [2019-12-27 08:09:43,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:43" (1/1) ... [2019-12-27 08:09:43,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:43" (1/1) ... [2019-12-27 08:09:43,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:43" (1/1) ... [2019-12-27 08:09:43,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:43" (1/1) ... [2019-12-27 08:09:43,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:43" (1/1) ... [2019-12-27 08:09:43,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:09:43,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:09:43,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:09:43,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:09:43,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:43" (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 [2019-12-27 08:09:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:09:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 08:09:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:09:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:09:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 08:09:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 08:09:43,230 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 08:09:43,231 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 08:09:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 08:09:43,232 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 08:09:43,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 08:09:43,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:09:43,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:09:43,234 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 08:09:43,586 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:09:43,586 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 08:09:43,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:09:43 BoogieIcfgContainer [2019-12-27 08:09:43,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:09:43,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:09:43,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:09:43,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:09:43,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:09:42" (1/3) ... [2019-12-27 08:09:43,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e011660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:09:43, skipping insertion in model container [2019-12-27 08:09:43,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:43" (2/3) ... [2019-12-27 08:09:43,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e011660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:09:43, skipping insertion in model container [2019-12-27 08:09:43,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:09:43" (3/3) ... [2019-12-27 08:09:43,596 INFO L109 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2019-12-27 08:09:43,604 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:09:43,605 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:09:43,612 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 08:09:43,613 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:09:43,639 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,639 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,640 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,640 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,641 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,641 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,641 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,642 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,642 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,642 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,642 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,643 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,643 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,643 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,643 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,644 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,644 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,644 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,648 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,649 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,649 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,649 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,660 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,660 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,660 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,661 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,665 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,665 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,666 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,666 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:43,684 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 08:09:43,703 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:09:43,703 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:09:43,703 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:09:43,704 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:09:43,704 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:09:43,704 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:09:43,704 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:09:43,704 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:09:43,718 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 08:09:43,720 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 08:09:43,765 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 08:09:43,765 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 08:09:43,771 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 08:09:43,774 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 08:09:43,792 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 08:09:43,793 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 08:09:43,794 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 08:09:43,796 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 08:09:43,797 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:09:45,203 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-12-27 08:09:45,239 INFO L206 etLargeBlockEncoding]: Checked pairs total: 433 [2019-12-27 08:09:45,239 INFO L214 etLargeBlockEncoding]: Total number of compositions: 41 [2019-12-27 08:09:45,243 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 08:09:45,252 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 08:09:45,253 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 08:09:45,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 08:09:45,259 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:09:45,260 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:09:45,260 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:09:45,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:09:45,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1839806278, now seen corresponding path program 1 times [2019-12-27 08:09:45,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:09:45,274 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902846890] [2019-12-27 08:09:45,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:09:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:09:45,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:09:45,533 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902846890] [2019-12-27 08:09:45,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:09:45,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:09:45,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899862186] [2019-12-27 08:09:45,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:09:45,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:09:45,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:09:45,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:09:45,562 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 08:09:45,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:09:45,604 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 08:09:45,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:09:45,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 08:09:45,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:09:45,637 INFO L225 Difference]: With dead ends: 44 [2019-12-27 08:09:45,638 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 08:09:45,640 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 [2019-12-27 08:09:45,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 08:09:45,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 08:09:45,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 08:09:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 08:09:45,692 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 08:09:45,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:09:45,693 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 08:09:45,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:09:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 08:09:45,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 08:09:45,694 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:09:45,694 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:09:45,695 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:09:45,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:09:45,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1194749337, now seen corresponding path program 1 times [2019-12-27 08:09:45,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:09:45,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171429029] [2019-12-27 08:09:45,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:09:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:09:45,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:09:45,776 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171429029] [2019-12-27 08:09:45,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:09:45,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:09:45,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944706009] [2019-12-27 08:09:45,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:09:45,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:09:45,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:09:45,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:09:45,781 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 08:09:45,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:09:45,798 INFO L93 Difference]: Finished difference Result 35 states and 66 transitions. [2019-12-27 08:09:45,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:09:45,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 08:09:45,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:09:45,799 INFO L225 Difference]: With dead ends: 35 [2019-12-27 08:09:45,799 INFO L226 Difference]: Without dead ends: 35 [2019-12-27 08:09:45,800 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 [2019-12-27 08:09:45,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-27 08:09:45,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-27 08:09:45,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-27 08:09:45,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 66 transitions. [2019-12-27 08:09:45,810 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 66 transitions. Word has length 9 [2019-12-27 08:09:45,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:09:45,811 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 66 transitions. [2019-12-27 08:09:45,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:09:45,811 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 66 transitions. [2019-12-27 08:09:45,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 08:09:45,812 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:09:45,812 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:09:45,812 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:09:45,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:09:45,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1199341956, now seen corresponding path program 1 times [2019-12-27 08:09:45,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:09:45,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792025810] [2019-12-27 08:09:45,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:09:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:09:45,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:09:45,890 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792025810] [2019-12-27 08:09:45,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:09:45,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:09:45,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145362562] [2019-12-27 08:09:45,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:09:45,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:09:45,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:09:45,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:09:45,892 INFO L87 Difference]: Start difference. First operand 35 states and 66 transitions. Second operand 3 states. [2019-12-27 08:09:45,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:09:45,901 INFO L93 Difference]: Finished difference Result 38 states and 65 transitions. [2019-12-27 08:09:45,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:09:45,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 08:09:45,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:09:45,903 INFO L225 Difference]: With dead ends: 38 [2019-12-27 08:09:45,903 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 08:09:45,903 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:09:45,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 08:09:45,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2019-12-27 08:09:45,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 08:09:45,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 57 transitions. [2019-12-27 08:09:45,909 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 57 transitions. Word has length 9 [2019-12-27 08:09:45,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:09:45,910 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 57 transitions. [2019-12-27 08:09:45,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:09:45,910 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 57 transitions. [2019-12-27 08:09:45,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:09:45,911 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:09:45,911 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:09:45,911 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:09:45,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:09:45,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1617560758, now seen corresponding path program 1 times [2019-12-27 08:09:45,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:09:45,912 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23147848] [2019-12-27 08:09:45,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:09:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:09:45,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:09:45,968 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23147848] [2019-12-27 08:09:45,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:09:45,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:09:45,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080943160] [2019-12-27 08:09:45,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:09:45,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:09:45,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:09:45,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:09:45,972 INFO L87 Difference]: Start difference. First operand 33 states and 57 transitions. Second operand 3 states. [2019-12-27 08:09:45,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:09:45,987 INFO L93 Difference]: Finished difference Result 37 states and 59 transitions. [2019-12-27 08:09:45,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:09:45,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 08:09:45,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:09:45,988 INFO L225 Difference]: With dead ends: 37 [2019-12-27 08:09:45,988 INFO L226 Difference]: Without dead ends: 23 [2019-12-27 08:09:45,989 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:09:45,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-12-27 08:09:45,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-12-27 08:09:45,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 08:09:45,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2019-12-27 08:09:45,992 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 10 [2019-12-27 08:09:45,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:09:45,993 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-12-27 08:09:45,993 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:09:45,993 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2019-12-27 08:09:45,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:09:45,993 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:09:45,994 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:09:45,994 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:09:45,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:09:45,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1475191491, now seen corresponding path program 1 times [2019-12-27 08:09:45,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:09:45,995 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462791583] [2019-12-27 08:09:45,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:09:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:09:46,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:09:46,046 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462791583] [2019-12-27 08:09:46,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:09:46,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:09:46,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405711401] [2019-12-27 08:09:46,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:09:46,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:09:46,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:09:46,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:09:46,048 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. Second operand 4 states. [2019-12-27 08:09:46,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:09:46,071 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2019-12-27 08:09:46,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:09:46,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 08:09:46,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:09:46,072 INFO L225 Difference]: With dead ends: 20 [2019-12-27 08:09:46,072 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 08:09:46,073 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 [2019-12-27 08:09:46,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 08:09:46,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 08:09:46,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 08:09:46,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 08:09:46,073 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-12-27 08:09:46,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:09:46,077 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 08:09:46,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:09:46,077 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 08:09:46,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 08:09:46,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:09:46 BasicIcfg [2019-12-27 08:09:46,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:09:46,084 INFO L168 Benchmark]: Toolchain (without parser) took 3782.94 ms. Allocated memory was 146.3 MB in the beginning and 244.3 MB in the end (delta: 98.0 MB). Free memory was 103.2 MB in the beginning and 157.9 MB in the end (delta: -54.7 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2019-12-27 08:09:46,085 INFO L168 Benchmark]: CDTParser took 1.45 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-27 08:09:46,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.59 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 103.0 MB in the beginning and 161.7 MB in the end (delta: -58.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:09:46,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.09 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 159.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 08:09:46,087 INFO L168 Benchmark]: Boogie Preprocessor took 28.25 ms. Allocated memory is still 204.5 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:09:46,088 INFO L168 Benchmark]: RCFGBuilder took 421.28 ms. Allocated memory is still 204.5 MB. Free memory was 157.9 MB in the beginning and 137.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:09:46,089 INFO L168 Benchmark]: TraceAbstraction took 2493.40 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 137.2 MB in the beginning and 157.9 MB in the end (delta: -20.7 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:09:46,093 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 781.59 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 103.0 MB in the beginning and 161.7 MB in the end (delta: -58.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.09 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 159.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.25 ms. Allocated memory is still 204.5 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 421.28 ms. Allocated memory is still 204.5 MB. Free memory was 157.9 MB in the beginning and 137.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2493.40 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 137.2 MB in the beginning and 157.9 MB in the end (delta: -20.7 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 218 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 433 CheckedPairsTotal, 41 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 8 SDslu, 37 SDs, 0 SdLazy, 24 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 687 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...