/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/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:57:31,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:57:31,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:57:32,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:57:32,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:57:32,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:57:32,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:57:32,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:57:32,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:57:32,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:57:32,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:57:32,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:57:32,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:57:32,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:57:32,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:57:32,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:57:32,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:57:32,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:57:32,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:57:32,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:57:32,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:57:32,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:57:32,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:57:32,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:57:32,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 15:57:32,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 15:57:32,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 15:57:32,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 15:57:32,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 15:57:32,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 15:57:32,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:57:32,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:57:32,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:57:32,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:57:32,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:57:32,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:57:32,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:57:32,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:57:32,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:57:32,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:57:32,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:57:32,070 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 15:57:32,096 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:57:32,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:57:32,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:57:32,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:57:32,098 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:57:32,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:57:32,099 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:57:32,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:57:32,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:57:32,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:57:32,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:57:32,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:57:32,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:57:32,100 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:57:32,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:57:32,101 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:57:32,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:57:32,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:57:32,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:57:32,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:57:32,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:57:32,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:57:32,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:57:32,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:57:32,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:57:32,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:57:32,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:57:32,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:57:32,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:57:32,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:57:32,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:57:32,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:57:32,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:57:32,585 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:57:32,586 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:57:32,587 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-09-11 15:57:32,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/adbdf5413/97ecde10775642cdba73d99d73821751/FLAG10f1d4f79 [2020-09-11 15:57:33,352 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:57:33,353 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-09-11 15:57:33,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/adbdf5413/97ecde10775642cdba73d99d73821751/FLAG10f1d4f79 [2020-09-11 15:57:33,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/adbdf5413/97ecde10775642cdba73d99d73821751 [2020-09-11 15:57:33,628 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:57:33,634 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:57:33,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:57:33,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:57:33,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:57:33,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:57:33" (1/1) ... [2020-09-11 15:57:33,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e40bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:33, skipping insertion in model container [2020-09-11 15:57:33,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:57:33" (1/1) ... [2020-09-11 15:57:33,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:57:33,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:57:34,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:57:34,215 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:57:34,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:57:34,355 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:57:34,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:34 WrapperNode [2020-09-11 15:57:34,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:57:34,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:57:34,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:57:34,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:57:34,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:34" (1/1) ... [2020-09-11 15:57:34,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:34" (1/1) ... [2020-09-11 15:57:34,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:57:34,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:57:34,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:57:34,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:57:34,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:34" (1/1) ... [2020-09-11 15:57:34,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:34" (1/1) ... [2020-09-11 15:57:34,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:34" (1/1) ... [2020-09-11 15:57:34,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:34" (1/1) ... [2020-09-11 15:57:34,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:34" (1/1) ... [2020-09-11 15:57:34,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:34" (1/1) ... [2020-09-11 15:57:34,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:34" (1/1) ... [2020-09-11 15:57:34,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:57:34,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:57:34,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:57:34,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:57:34,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:57:34,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:57:34,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:57:34,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:57:34,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:57:34,541 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 15:57:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 15:57:34,541 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 15:57:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 15:57:34,541 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 15:57:34,542 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 15:57:34,542 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-11 15:57:34,542 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-11 15:57:34,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:57:34,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:57:34,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:57:34,545 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 15:57:35,040 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:57:35,040 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 15:57:35,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:57:35 BoogieIcfgContainer [2020-09-11 15:57:35,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:57:35,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:57:35,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:57:35,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:57:35,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:57:33" (1/3) ... [2020-09-11 15:57:35,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f8a49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:57:35, skipping insertion in model container [2020-09-11 15:57:35,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:57:34" (2/3) ... [2020-09-11 15:57:35,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f8a49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:57:35, skipping insertion in model container [2020-09-11 15:57:35,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:57:35" (3/3) ... [2020-09-11 15:57:35,056 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-09-11 15:57:35,068 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:57:35,069 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:57:35,079 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:57:35,081 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:57:35,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,121 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,121 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,123 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,123 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,125 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,125 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,125 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,126 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,126 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,126 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,127 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,127 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,127 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,127 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,132 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,133 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,133 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,133 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,139 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,140 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,140 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,140 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,143 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,144 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,144 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,144 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,150 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,150 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,150 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:57:35,171 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-11 15:57:35,194 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:57:35,195 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:57:35,195 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:57:35,195 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:57:35,195 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:57:35,195 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:57:35,195 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:57:35,196 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:57:35,213 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-09-11 15:57:35,215 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-09-11 15:57:35,270 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-09-11 15:57:35,270 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:57:35,277 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-09-11 15:57:35,281 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-09-11 15:57:35,321 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-09-11 15:57:35,321 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:57:35,322 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-09-11 15:57:35,326 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2016 [2020-09-11 15:57:35,327 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:57:37,232 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-09-11 15:57:37,307 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4485 [2020-09-11 15:57:37,307 INFO L214 etLargeBlockEncoding]: Total number of compositions: 67 [2020-09-11 15:57:37,312 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-09-11 15:57:37,430 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-09-11 15:57:37,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-09-11 15:57:37,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 15:57:37,446 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:57:37,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:57:37,448 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:57:37,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:57:37,456 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-09-11 15:57:37,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:57:37,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297260679] [2020-09-11 15:57:37,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:57:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:57:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:57:37,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297260679] [2020-09-11 15:57:37,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:57:37,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:57:37,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530914942] [2020-09-11 15:57:37,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-11 15:57:37,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:57:37,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-11 15:57:37,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 15:57:37,732 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-09-11 15:57:37,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:57:37,839 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-09-11 15:57:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-11 15:57:37,845 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-11 15:57:37,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:57:37,888 INFO L225 Difference]: With dead ends: 1450 [2020-09-11 15:57:37,889 INFO L226 Difference]: Without dead ends: 1194 [2020-09-11 15:57:37,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 15:57:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-09-11 15:57:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-09-11 15:57:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-09-11 15:57:38,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-09-11 15:57:38,069 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-09-11 15:57:38,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:57:38,074 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-09-11 15:57:38,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-11 15:57:38,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-09-11 15:57:38,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 15:57:38,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:57:38,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:57:38,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:57:38,092 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:57:38,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:57:38,093 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-09-11 15:57:38,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:57:38,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827807690] [2020-09-11 15:57:38,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:57:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:57:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:57:38,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827807690] [2020-09-11 15:57:38,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:57:38,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:57:38,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349556439] [2020-09-11 15:57:38,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:57:38,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:57:38,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:57:38,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:57:38,335 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-09-11 15:57:38,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:57:38,400 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-09-11 15:57:38,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:57:38,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-11 15:57:38,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:57:38,412 INFO L225 Difference]: With dead ends: 1322 [2020-09-11 15:57:38,413 INFO L226 Difference]: Without dead ends: 1066 [2020-09-11 15:57:38,414 INFO L675 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 [2020-09-11 15:57:38,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-09-11 15:57:38,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-09-11 15:57:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-09-11 15:57:38,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-09-11 15:57:38,460 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-09-11 15:57:38,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:57:38,461 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-09-11 15:57:38,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:57:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-09-11 15:57:38,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:57:38,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:57:38,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:57:38,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:57:38,464 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:57:38,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:57:38,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1585408540, now seen corresponding path program 1 times [2020-09-11 15:57:38,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:57:38,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951374604] [2020-09-11 15:57:38,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:57:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:57:38,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:57:38,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951374604] [2020-09-11 15:57:38,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:57:38,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:57:38,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350683535] [2020-09-11 15:57:38,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:57:38,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:57:38,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:57:38,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:57:38,630 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-09-11 15:57:38,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:57:38,665 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-09-11 15:57:38,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:57:38,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-11 15:57:38,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:57:38,675 INFO L225 Difference]: With dead ends: 1162 [2020-09-11 15:57:38,675 INFO L226 Difference]: Without dead ends: 970 [2020-09-11 15:57:38,676 INFO L675 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 [2020-09-11 15:57:38,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-09-11 15:57:38,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-09-11 15:57:38,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-09-11 15:57:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-09-11 15:57:38,718 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-09-11 15:57:38,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:57:38,719 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-09-11 15:57:38,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:57:38,719 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-09-11 15:57:38,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 15:57:38,721 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:57:38,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:57:38,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:57:38,721 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:57:38,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:57:38,722 INFO L82 PathProgramCache]: Analyzing trace with hash -333651602, now seen corresponding path program 1 times [2020-09-11 15:57:38,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:57:38,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585061061] [2020-09-11 15:57:38,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:57:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:57:38,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:57:38,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585061061] [2020-09-11 15:57:38,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:57:38,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:57:38,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266360164] [2020-09-11 15:57:38,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:57:38,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:57:38,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:57:38,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:57:38,799 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 4 states. [2020-09-11 15:57:38,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:57:38,827 INFO L93 Difference]: Finished difference Result 1042 states and 3558 transitions. [2020-09-11 15:57:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:57:38,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-11 15:57:38,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:57:38,835 INFO L225 Difference]: With dead ends: 1042 [2020-09-11 15:57:38,836 INFO L226 Difference]: Without dead ends: 898 [2020-09-11 15:57:38,836 INFO L675 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 [2020-09-11 15:57:38,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-09-11 15:57:38,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2020-09-11 15:57:38,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-09-11 15:57:38,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3114 transitions. [2020-09-11 15:57:38,874 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3114 transitions. Word has length 13 [2020-09-11 15:57:38,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:57:38,874 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 3114 transitions. [2020-09-11 15:57:38,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:57:38,874 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3114 transitions. [2020-09-11 15:57:38,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 15:57:38,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:57:38,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:57:38,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 15:57:38,877 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:57:38,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:57:38,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1753289104, now seen corresponding path program 1 times [2020-09-11 15:57:38,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:57:38,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324551781] [2020-09-11 15:57:38,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:57:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:57:38,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:57:38,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324551781] [2020-09-11 15:57:38,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:57:38,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:57:38,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911268064] [2020-09-11 15:57:38,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:57:38,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:57:38,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:57:38,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:57:38,952 INFO L87 Difference]: Start difference. First operand 898 states and 3114 transitions. Second operand 4 states. [2020-09-11 15:57:38,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:57:38,985 INFO L93 Difference]: Finished difference Result 952 states and 3222 transitions. [2020-09-11 15:57:38,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:57:38,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-11 15:57:38,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:57:38,995 INFO L225 Difference]: With dead ends: 952 [2020-09-11 15:57:38,995 INFO L226 Difference]: Without dead ends: 844 [2020-09-11 15:57:38,996 INFO L675 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 [2020-09-11 15:57:39,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-09-11 15:57:39,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 844. [2020-09-11 15:57:39,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 844 states. [2020-09-11 15:57:39,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 2898 transitions. [2020-09-11 15:57:39,065 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 2898 transitions. Word has length 14 [2020-09-11 15:57:39,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:57:39,066 INFO L479 AbstractCegarLoop]: Abstraction has 844 states and 2898 transitions. [2020-09-11 15:57:39,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:57:39,067 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 2898 transitions. [2020-09-11 15:57:39,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-11 15:57:39,069 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:57:39,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:57:39,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 15:57:39,070 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:57:39,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:57:39,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1152352578, now seen corresponding path program 1 times [2020-09-11 15:57:39,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:57:39,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989143036] [2020-09-11 15:57:39,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:57:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:57:39,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:57:39,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989143036] [2020-09-11 15:57:39,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:57:39,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:57:39,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417230447] [2020-09-11 15:57:39,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:57:39,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:57:39,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:57:39,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:57:39,162 INFO L87 Difference]: Start difference. First operand 844 states and 2898 transitions. Second operand 5 states. [2020-09-11 15:57:39,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:57:39,216 INFO L93 Difference]: Finished difference Result 1063 states and 3587 transitions. [2020-09-11 15:57:39,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:57:39,217 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-11 15:57:39,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:57:39,222 INFO L225 Difference]: With dead ends: 1063 [2020-09-11 15:57:39,222 INFO L226 Difference]: Without dead ends: 598 [2020-09-11 15:57:39,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:57:39,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-09-11 15:57:39,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-09-11 15:57:39,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-09-11 15:57:39,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1914 transitions. [2020-09-11 15:57:39,244 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1914 transitions. Word has length 15 [2020-09-11 15:57:39,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:57:39,244 INFO L479 AbstractCegarLoop]: Abstraction has 598 states and 1914 transitions. [2020-09-11 15:57:39,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:57:39,245 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1914 transitions. [2020-09-11 15:57:39,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-11 15:57:39,247 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:57:39,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:57:39,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 15:57:39,247 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:57:39,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:57:39,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1363663410, now seen corresponding path program 1 times [2020-09-11 15:57:39,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:57:39,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458330126] [2020-09-11 15:57:39,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:57:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:57:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:57:39,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458330126] [2020-09-11 15:57:39,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:57:39,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:57:39,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522099740] [2020-09-11 15:57:39,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:57:39,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:57:39,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:57:39,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:57:39,326 INFO L87 Difference]: Start difference. First operand 598 states and 1914 transitions. Second operand 5 states. [2020-09-11 15:57:39,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:57:39,372 INFO L93 Difference]: Finished difference Result 712 states and 2245 transitions. [2020-09-11 15:57:39,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:57:39,373 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-11 15:57:39,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:57:39,375 INFO L225 Difference]: With dead ends: 712 [2020-09-11 15:57:39,375 INFO L226 Difference]: Without dead ends: 292 [2020-09-11 15:57:39,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:57:39,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-09-11 15:57:39,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2020-09-11 15:57:39,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-09-11 15:57:39,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 846 transitions. [2020-09-11 15:57:39,387 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 846 transitions. Word has length 16 [2020-09-11 15:57:39,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:57:39,387 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 846 transitions. [2020-09-11 15:57:39,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:57:39,387 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 846 transitions. [2020-09-11 15:57:39,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-11 15:57:39,388 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:57:39,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:57:39,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 15:57:39,389 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:57:39,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:57:39,389 INFO L82 PathProgramCache]: Analyzing trace with hash -670734284, now seen corresponding path program 1 times [2020-09-11 15:57:39,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:57:39,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563099418] [2020-09-11 15:57:39,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:57:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:57:39,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:57:39,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563099418] [2020-09-11 15:57:39,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:57:39,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:57:39,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258878197] [2020-09-11 15:57:39,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:57:39,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:57:39,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:57:39,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:57:39,469 INFO L87 Difference]: Start difference. First operand 292 states and 846 transitions. Second operand 5 states. [2020-09-11 15:57:39,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:57:39,511 INFO L93 Difference]: Finished difference Result 352 states and 1006 transitions. [2020-09-11 15:57:39,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:57:39,512 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-11 15:57:39,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:57:39,514 INFO L225 Difference]: With dead ends: 352 [2020-09-11 15:57:39,514 INFO L226 Difference]: Without dead ends: 154 [2020-09-11 15:57:39,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:57:39,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-11 15:57:39,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-09-11 15:57:39,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-11 15:57:39,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-09-11 15:57:39,520 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2020-09-11 15:57:39,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:57:39,521 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-09-11 15:57:39,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:57:39,521 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-09-11 15:57:39,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 15:57:39,522 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:57:39,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:57:39,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 15:57:39,522 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:57:39,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:57:39,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1157328918, now seen corresponding path program 1 times [2020-09-11 15:57:39,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:57:39,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574080862] [2020-09-11 15:57:39,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:57:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:57:39,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:57:39,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574080862] [2020-09-11 15:57:39,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:57:39,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:57:39,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531209475] [2020-09-11 15:57:39,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:57:39,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:57:39,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:57:39,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:57:39,603 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 5 states. [2020-09-11 15:57:39,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:57:39,640 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-09-11 15:57:39,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:57:39,641 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-11 15:57:39,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:57:39,642 INFO L225 Difference]: With dead ends: 130 [2020-09-11 15:57:39,642 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:57:39,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:57:39,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:57:39,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:57:39,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:57:39,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:57:39,643 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-11 15:57:39,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:57:39,644 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:57:39,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:57:39,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:57:39,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:57:39,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-11 15:57:39,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:57:39 BasicIcfg [2020-09-11 15:57:39,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:57:39,652 INFO L168 Benchmark]: Toolchain (without parser) took 6022.53 ms. Allocated memory was 138.9 MB in the beginning and 300.4 MB in the end (delta: 161.5 MB). Free memory was 100.7 MB in the beginning and 164.0 MB in the end (delta: -63.3 MB). Peak memory consumption was 98.2 MB. Max. memory is 7.1 GB. [2020-09-11 15:57:39,653 INFO L168 Benchmark]: CDTParser took 1.51 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 15:57:39,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.05 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.0 MB in the beginning and 155.7 MB in the end (delta: -55.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-11 15:57:39,655 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.91 ms. Allocated memory is still 201.9 MB. Free memory was 155.7 MB in the beginning and 153.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 15:57:39,656 INFO L168 Benchmark]: Boogie Preprocessor took 47.88 ms. Allocated memory is still 201.9 MB. Free memory was 153.6 MB in the beginning and 152.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:57:39,657 INFO L168 Benchmark]: RCFGBuilder took 579.85 ms. Allocated memory is still 201.9 MB. Free memory was 152.2 MB in the beginning and 126.8 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:57:39,658 INFO L168 Benchmark]: TraceAbstraction took 4602.43 ms. Allocated memory was 201.9 MB in the beginning and 300.4 MB in the end (delta: 98.6 MB). Free memory was 126.8 MB in the beginning and 164.0 MB in the end (delta: -37.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2020-09-11 15:57:39,662 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 720.05 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.0 MB in the beginning and 155.7 MB in the end (delta: -55.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.91 ms. Allocated memory is still 201.9 MB. Free memory was 155.7 MB in the beginning and 153.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.88 ms. Allocated memory is still 201.9 MB. Free memory was 153.6 MB in the beginning and 152.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 579.85 ms. Allocated memory is still 201.9 MB. Free memory was 152.2 MB in the beginning and 126.8 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4602.43 ms. Allocated memory was 201.9 MB in the beginning and 300.4 MB in the end (delta: 98.6 MB). Free memory was 126.8 MB in the beginning and 164.0 MB in the end (delta: -37.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 97 ProgramPointsBefore, 41 ProgramPointsAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 1045 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 4485 CheckedPairsTotal, 67 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 263 SDtfs, 280 SDslu, 349 SDs, 0 SdLazy, 63 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 4689 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...