/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/safe016_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:49:57,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:49:57,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:49:57,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:49:57,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:49:57,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:49:57,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:49:57,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:49:57,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:49:57,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:49:57,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:49:57,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:49:57,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:49:57,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:49:57,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:49:57,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:49:57,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:49:57,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:49:57,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:49:57,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:49:57,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:49:57,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:49:57,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:49:57,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:49:57,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:49:57,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:49:57,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:49:57,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:49:57,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:49:57,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:49:57,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:49:57,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:49:57,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:49:57,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:49:57,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:49:57,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:49:57,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:49:57,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:49:57,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:49:57,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:49:57,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:49:57,236 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:49:57,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:49:57,236 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:49:57,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:49:57,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:49:57,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:49:57,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:49:57,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:49:57,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:49:57,239 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:49:57,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:49:57,240 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:49:57,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:49:57,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:49:57,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:49:57,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:49:57,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:49:57,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:49:57,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:49:57,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:49:57,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:49:57,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:49:57,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:49:57,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:49:57,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:49:57,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:49:57,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:49:57,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:49:57,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:49:57,549 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:49:57,550 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:49:57,551 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2020-10-05 22:49:57,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/086a23fed/e60b37d3faa3415cbc84b098f5409c8d/FLAG624c5f9f7 [2020-10-05 22:49:58,180 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:49:58,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2020-10-05 22:49:58,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/086a23fed/e60b37d3faa3415cbc84b098f5409c8d/FLAG624c5f9f7 [2020-10-05 22:49:58,504 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/086a23fed/e60b37d3faa3415cbc84b098f5409c8d [2020-10-05 22:49:58,512 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:49:58,514 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:49:58,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:49:58,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:49:58,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:49:58,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:49:58" (1/1) ... [2020-10-05 22:49:58,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de60d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:58, skipping insertion in model container [2020-10-05 22:49:58,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:49:58" (1/1) ... [2020-10-05 22:49:58,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:49:58,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:49:59,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:49:59,172 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:49:59,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:49:59,352 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:49:59,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:59 WrapperNode [2020-10-05 22:49:59,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:49:59,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:49:59,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:49:59,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:49:59,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:59" (1/1) ... [2020-10-05 22:49:59,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:59" (1/1) ... [2020-10-05 22:49:59,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:49:59,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:49:59,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:49:59,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:49:59,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:59" (1/1) ... [2020-10-05 22:49:59,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:59" (1/1) ... [2020-10-05 22:49:59,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:59" (1/1) ... [2020-10-05 22:49:59,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:59" (1/1) ... [2020-10-05 22:49:59,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:59" (1/1) ... [2020-10-05 22:49:59,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:59" (1/1) ... [2020-10-05 22:49:59,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:59" (1/1) ... [2020-10-05 22:49:59,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:49:59,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:49:59,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:49:59,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:49:59,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:49:59,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:49:59,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:49:59,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:49:59,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:49:59,516 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:49:59,516 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:49:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:49:59,517 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:49:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:49:59,517 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:49:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-05 22:49:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-05 22:49:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:49:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:49:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:49:59,520 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:49:59,925 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:49:59,926 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:49:59,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:49:59 BoogieIcfgContainer [2020-10-05 22:49:59,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:49:59,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:49:59,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:49:59,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:49:59,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:49:58" (1/3) ... [2020-10-05 22:49:59,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ef654d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:49:59, skipping insertion in model container [2020-10-05 22:49:59,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:49:59" (2/3) ... [2020-10-05 22:49:59,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ef654d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:49:59, skipping insertion in model container [2020-10-05 22:49:59,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:49:59" (3/3) ... [2020-10-05 22:49:59,937 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_tso.opt.i [2020-10-05 22:49:59,948 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:49:59,948 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:49:59,957 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:49:59,958 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:49:59,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,989 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,990 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,990 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,990 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,991 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,992 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,993 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,993 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,993 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,993 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,994 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,994 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,994 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,995 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,995 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,995 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,996 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:49:59,996 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,000 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,000 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,000 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,000 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,008 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,009 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,011 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,012 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,014 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,014 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,015 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,015 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:50:00,030 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-05 22:50:00,051 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:50:00,052 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:50:00,052 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:50:00,052 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:50:00,052 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:50:00,052 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:50:00,052 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:50:00,053 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:50:00,068 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 180 flow [2020-10-05 22:50:00,070 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-10-05 22:50:00,116 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-05 22:50:00,117 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:50:00,122 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-05 22:50:00,125 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-10-05 22:50:00,149 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-05 22:50:00,149 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:50:00,150 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-05 22:50:00,153 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-10-05 22:50:00,154 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:50:02,031 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2895 [2020-10-05 22:50:02,032 INFO L214 etLargeBlockEncoding]: Total number of compositions: 62 [2020-10-05 22:50:02,036 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-05 22:50:02,096 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-05 22:50:02,098 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-05 22:50:02,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 22:50:02,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:02,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:02,111 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:02,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:02,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1118879254, now seen corresponding path program 1 times [2020-10-05 22:50:02,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:02,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249626345] [2020-10-05 22:50:02,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:02,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249626345] [2020-10-05 22:50:02,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:02,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:50:02,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037805399] [2020-10-05 22:50:02,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 22:50:02,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:02,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 22:50:02,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:50:02,346 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-05 22:50:02,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:02,404 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-05 22:50:02,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 22:50:02,405 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-05 22:50:02,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:02,434 INFO L225 Difference]: With dead ends: 850 [2020-10-05 22:50:02,434 INFO L226 Difference]: Without dead ends: 706 [2020-10-05 22:50:02,436 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 [2020-10-05 22:50:02,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-05 22:50:02,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-05 22:50:02,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-05 22:50:02,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-05 22:50:02,569 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-05 22:50:02,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:02,570 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-05 22:50:02,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 22:50:02,570 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-05 22:50:02,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:50:02,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:02,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:02,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:50:02,575 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:02,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:02,576 INFO L82 PathProgramCache]: Analyzing trace with hash -325524913, now seen corresponding path program 1 times [2020-10-05 22:50:02,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:02,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554882553] [2020-10-05 22:50:02,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:02,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:02,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554882553] [2020-10-05 22:50:02,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:02,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:50:02,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968295390] [2020-10-05 22:50:02,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:50:02,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:02,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:50:02,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:50:02,755 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-05 22:50:02,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:02,832 INFO L93 Difference]: Finished difference Result 802 states and 2662 transitions. [2020-10-05 22:50:02,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:50:02,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 22:50:02,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:02,840 INFO L225 Difference]: With dead ends: 802 [2020-10-05 22:50:02,840 INFO L226 Difference]: Without dead ends: 658 [2020-10-05 22:50:02,841 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 [2020-10-05 22:50:02,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-10-05 22:50:02,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-10-05 22:50:02,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-10-05 22:50:02,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2230 transitions. [2020-10-05 22:50:02,873 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2230 transitions. Word has length 11 [2020-10-05 22:50:02,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:02,873 INFO L479 AbstractCegarLoop]: Abstraction has 658 states and 2230 transitions. [2020-10-05 22:50:02,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:50:02,873 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2230 transitions. [2020-10-05 22:50:02,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:50:02,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:02,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:02,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:50:02,877 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:02,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:02,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1501347001, now seen corresponding path program 1 times [2020-10-05 22:50:02,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:02,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814145396] [2020-10-05 22:50:02,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:02,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:02,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814145396] [2020-10-05 22:50:02,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:02,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:50:02,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263141605] [2020-10-05 22:50:02,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:50:02,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:02,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:50:02,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:50:02,972 INFO L87 Difference]: Start difference. First operand 658 states and 2230 transitions. Second operand 4 states. [2020-10-05 22:50:03,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:03,004 INFO L93 Difference]: Finished difference Result 718 states and 2348 transitions. [2020-10-05 22:50:03,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:50:03,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:50:03,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:03,010 INFO L225 Difference]: With dead ends: 718 [2020-10-05 22:50:03,010 INFO L226 Difference]: Without dead ends: 598 [2020-10-05 22:50:03,011 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 [2020-10-05 22:50:03,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-05 22:50:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-10-05 22:50:03,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-10-05 22:50:03,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1992 transitions. [2020-10-05 22:50:03,036 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1992 transitions. Word has length 12 [2020-10-05 22:50:03,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:03,037 INFO L479 AbstractCegarLoop]: Abstraction has 598 states and 1992 transitions. [2020-10-05 22:50:03,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:50:03,037 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1992 transitions. [2020-10-05 22:50:03,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:50:03,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:03,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:03,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:50:03,039 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:03,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:03,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1422147839, now seen corresponding path program 1 times [2020-10-05 22:50:03,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:03,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381508980] [2020-10-05 22:50:03,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:03,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:03,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381508980] [2020-10-05 22:50:03,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:03,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:50:03,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999086183] [2020-10-05 22:50:03,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:50:03,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:03,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:50:03,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:50:03,137 INFO L87 Difference]: Start difference. First operand 598 states and 1992 transitions. Second operand 5 states. [2020-10-05 22:50:03,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:03,185 INFO L93 Difference]: Finished difference Result 928 states and 3061 transitions. [2020-10-05 22:50:03,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:50:03,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 22:50:03,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:03,191 INFO L225 Difference]: With dead ends: 928 [2020-10-05 22:50:03,191 INFO L226 Difference]: Without dead ends: 550 [2020-10-05 22:50:03,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:50:03,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-10-05 22:50:03,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2020-10-05 22:50:03,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-10-05 22:50:03,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 1794 transitions. [2020-10-05 22:50:03,214 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1794 transitions. Word has length 13 [2020-10-05 22:50:03,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:03,214 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 1794 transitions. [2020-10-05 22:50:03,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:50:03,214 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1794 transitions. [2020-10-05 22:50:03,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:50:03,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:03,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:03,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:50:03,216 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:03,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:03,217 INFO L82 PathProgramCache]: Analyzing trace with hash 702868169, now seen corresponding path program 2 times [2020-10-05 22:50:03,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:03,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849339665] [2020-10-05 22:50:03,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:03,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849339665] [2020-10-05 22:50:03,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:03,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:50:03,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814498807] [2020-10-05 22:50:03,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:50:03,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:03,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:50:03,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:50:03,270 INFO L87 Difference]: Start difference. First operand 550 states and 1794 transitions. Second operand 4 states. [2020-10-05 22:50:03,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:03,311 INFO L93 Difference]: Finished difference Result 620 states and 1955 transitions. [2020-10-05 22:50:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:50:03,312 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-05 22:50:03,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:03,317 INFO L225 Difference]: With dead ends: 620 [2020-10-05 22:50:03,317 INFO L226 Difference]: Without dead ends: 530 [2020-10-05 22:50:03,318 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 [2020-10-05 22:50:03,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-05 22:50:03,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2020-10-05 22:50:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-10-05 22:50:03,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1708 transitions. [2020-10-05 22:50:03,339 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1708 transitions. Word has length 13 [2020-10-05 22:50:03,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:03,339 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 1708 transitions. [2020-10-05 22:50:03,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:50:03,339 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1708 transitions. [2020-10-05 22:50:03,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:50:03,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:03,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:03,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:50:03,341 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:03,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:03,342 INFO L82 PathProgramCache]: Analyzing trace with hash -635139139, now seen corresponding path program 1 times [2020-10-05 22:50:03,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:03,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754275170] [2020-10-05 22:50:03,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:03,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:03,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754275170] [2020-10-05 22:50:03,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:03,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:50:03,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96174490] [2020-10-05 22:50:03,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:50:03,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:03,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:50:03,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:50:03,426 INFO L87 Difference]: Start difference. First operand 530 states and 1708 transitions. Second operand 4 states. [2020-10-05 22:50:03,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:03,461 INFO L93 Difference]: Finished difference Result 562 states and 1764 transitions. [2020-10-05 22:50:03,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:50:03,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-05 22:50:03,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:03,468 INFO L225 Difference]: With dead ends: 562 [2020-10-05 22:50:03,468 INFO L226 Difference]: Without dead ends: 498 [2020-10-05 22:50:03,469 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 [2020-10-05 22:50:03,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-05 22:50:03,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2020-10-05 22:50:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2020-10-05 22:50:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 1588 transitions. [2020-10-05 22:50:03,492 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 1588 transitions. Word has length 14 [2020-10-05 22:50:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:03,493 INFO L479 AbstractCegarLoop]: Abstraction has 498 states and 1588 transitions. [2020-10-05 22:50:03,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:50:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 1588 transitions. [2020-10-05 22:50:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:50:03,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:03,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:03,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:50:03,496 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:03,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:03,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1533442537, now seen corresponding path program 1 times [2020-10-05 22:50:03,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:03,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914726860] [2020-10-05 22:50:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:03,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:03,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914726860] [2020-10-05 22:50:03,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:03,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:50:03,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594603729] [2020-10-05 22:50:03,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:50:03,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:03,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:50:03,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:50:03,575 INFO L87 Difference]: Start difference. First operand 498 states and 1588 transitions. Second operand 5 states. [2020-10-05 22:50:03,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:03,610 INFO L93 Difference]: Finished difference Result 734 states and 2316 transitions. [2020-10-05 22:50:03,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:50:03,611 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-05 22:50:03,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:03,614 INFO L225 Difference]: With dead ends: 734 [2020-10-05 22:50:03,614 INFO L226 Difference]: Without dead ends: 382 [2020-10-05 22:50:03,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:50:03,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-10-05 22:50:03,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2020-10-05 22:50:03,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-10-05 22:50:03,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 1187 transitions. [2020-10-05 22:50:03,627 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 1187 transitions. Word has length 15 [2020-10-05 22:50:03,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:03,628 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 1187 transitions. [2020-10-05 22:50:03,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:50:03,628 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 1187 transitions. [2020-10-05 22:50:03,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:50:03,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:03,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:03,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:50:03,629 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:03,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:03,630 INFO L82 PathProgramCache]: Analyzing trace with hash 733648448, now seen corresponding path program 1 times [2020-10-05 22:50:03,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:03,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895392354] [2020-10-05 22:50:03,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:03,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:03,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895392354] [2020-10-05 22:50:03,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:03,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:50:03,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684276029] [2020-10-05 22:50:03,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:50:03,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:03,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:50:03,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:50:03,689 INFO L87 Difference]: Start difference. First operand 382 states and 1187 transitions. Second operand 4 states. [2020-10-05 22:50:03,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:03,714 INFO L93 Difference]: Finished difference Result 538 states and 1595 transitions. [2020-10-05 22:50:03,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:50:03,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-05 22:50:03,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:03,718 INFO L225 Difference]: With dead ends: 538 [2020-10-05 22:50:03,718 INFO L226 Difference]: Without dead ends: 374 [2020-10-05 22:50:03,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:50:03,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-10-05 22:50:03,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 326. [2020-10-05 22:50:03,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-05 22:50:03,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 955 transitions. [2020-10-05 22:50:03,730 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 955 transitions. Word has length 15 [2020-10-05 22:50:03,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:03,731 INFO L479 AbstractCegarLoop]: Abstraction has 326 states and 955 transitions. [2020-10-05 22:50:03,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:50:03,731 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 955 transitions. [2020-10-05 22:50:03,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:50:03,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:03,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:03,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:50:03,732 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:03,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:03,733 INFO L82 PathProgramCache]: Analyzing trace with hash 807678122, now seen corresponding path program 1 times [2020-10-05 22:50:03,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:03,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214438861] [2020-10-05 22:50:03,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:03,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:03,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214438861] [2020-10-05 22:50:03,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:03,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:50:03,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661660238] [2020-10-05 22:50:03,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:50:03,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:03,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:50:03,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:50:03,789 INFO L87 Difference]: Start difference. First operand 326 states and 955 transitions. Second operand 4 states. [2020-10-05 22:50:03,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:03,823 INFO L93 Difference]: Finished difference Result 390 states and 1053 transitions. [2020-10-05 22:50:03,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:50:03,824 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-05 22:50:03,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:03,826 INFO L225 Difference]: With dead ends: 390 [2020-10-05 22:50:03,826 INFO L226 Difference]: Without dead ends: 293 [2020-10-05 22:50:03,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:50:03,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-05 22:50:03,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2020-10-05 22:50:03,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-05 22:50:03,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 804 transitions. [2020-10-05 22:50:03,837 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 804 transitions. Word has length 15 [2020-10-05 22:50:03,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:03,837 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 804 transitions. [2020-10-05 22:50:03,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:50:03,837 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 804 transitions. [2020-10-05 22:50:03,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-05 22:50:03,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:03,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:03,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 22:50:03,839 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:03,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:03,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1481069530, now seen corresponding path program 1 times [2020-10-05 22:50:03,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:03,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188485034] [2020-10-05 22:50:03,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:03,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:03,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188485034] [2020-10-05 22:50:03,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:03,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:50:03,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328259957] [2020-10-05 22:50:03,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:50:03,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:03,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:50:03,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:50:03,899 INFO L87 Difference]: Start difference. First operand 293 states and 804 transitions. Second operand 5 states. [2020-10-05 22:50:03,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:03,951 INFO L93 Difference]: Finished difference Result 296 states and 728 transitions. [2020-10-05 22:50:03,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:50:03,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-05 22:50:03,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:03,954 INFO L225 Difference]: With dead ends: 296 [2020-10-05 22:50:03,954 INFO L226 Difference]: Without dead ends: 218 [2020-10-05 22:50:03,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:50:03,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-05 22:50:03,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-05 22:50:03,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-05 22:50:03,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 525 transitions. [2020-10-05 22:50:03,963 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 525 transitions. Word has length 16 [2020-10-05 22:50:03,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:03,963 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 525 transitions. [2020-10-05 22:50:03,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:50:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 525 transitions. [2020-10-05 22:50:03,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:50:03,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:03,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:03,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 22:50:03,965 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:03,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:03,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1331262194, now seen corresponding path program 1 times [2020-10-05 22:50:03,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:03,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93403410] [2020-10-05 22:50:03,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:04,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:04,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93403410] [2020-10-05 22:50:04,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:04,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-05 22:50:04,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935300544] [2020-10-05 22:50:04,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 22:50:04,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:04,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 22:50:04,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:50:04,025 INFO L87 Difference]: Start difference. First operand 218 states and 525 transitions. Second operand 6 states. [2020-10-05 22:50:04,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:04,082 INFO L93 Difference]: Finished difference Result 196 states and 441 transitions. [2020-10-05 22:50:04,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:50:04,083 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-05 22:50:04,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:04,084 INFO L225 Difference]: With dead ends: 196 [2020-10-05 22:50:04,084 INFO L226 Difference]: Without dead ends: 157 [2020-10-05 22:50:04,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:50:04,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-05 22:50:04,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2020-10-05 22:50:04,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-05 22:50:04,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 352 transitions. [2020-10-05 22:50:04,089 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 352 transitions. Word has length 17 [2020-10-05 22:50:04,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:04,090 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 352 transitions. [2020-10-05 22:50:04,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 22:50:04,090 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 352 transitions. [2020-10-05 22:50:04,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-05 22:50:04,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:04,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:04,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-05 22:50:04,091 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:04,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:04,091 INFO L82 PathProgramCache]: Analyzing trace with hash 461519417, now seen corresponding path program 1 times [2020-10-05 22:50:04,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:04,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644650734] [2020-10-05 22:50:04,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:04,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:04,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644650734] [2020-10-05 22:50:04,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:04,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:50:04,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593078568] [2020-10-05 22:50:04,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:50:04,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:04,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:50:04,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:50:04,135 INFO L87 Difference]: Start difference. First operand 157 states and 352 transitions. Second operand 5 states. [2020-10-05 22:50:04,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:04,165 INFO L93 Difference]: Finished difference Result 197 states and 430 transitions. [2020-10-05 22:50:04,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:50:04,166 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-05 22:50:04,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:04,167 INFO L225 Difference]: With dead ends: 197 [2020-10-05 22:50:04,167 INFO L226 Difference]: Without dead ends: 148 [2020-10-05 22:50:04,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:50:04,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-05 22:50:04,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2020-10-05 22:50:04,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-05 22:50:04,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 314 transitions. [2020-10-05 22:50:04,173 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 314 transitions. Word has length 19 [2020-10-05 22:50:04,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:04,173 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 314 transitions. [2020-10-05 22:50:04,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:50:04,173 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 314 transitions. [2020-10-05 22:50:04,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-05 22:50:04,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:04,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:04,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-05 22:50:04,174 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:04,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:04,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1319799301, now seen corresponding path program 2 times [2020-10-05 22:50:04,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:04,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086994725] [2020-10-05 22:50:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:04,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:04,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086994725] [2020-10-05 22:50:04,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:04,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-05 22:50:04,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769152380] [2020-10-05 22:50:04,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 22:50:04,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:04,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 22:50:04,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:50:04,239 INFO L87 Difference]: Start difference. First operand 144 states and 314 transitions. Second operand 7 states. [2020-10-05 22:50:04,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:04,315 INFO L93 Difference]: Finished difference Result 133 states and 290 transitions. [2020-10-05 22:50:04,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-05 22:50:04,315 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-05 22:50:04,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:04,316 INFO L225 Difference]: With dead ends: 133 [2020-10-05 22:50:04,316 INFO L226 Difference]: Without dead ends: 52 [2020-10-05 22:50:04,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:50:04,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-05 22:50:04,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-05 22:50:04,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-05 22:50:04,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-10-05 22:50:04,319 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 19 [2020-10-05 22:50:04,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:04,319 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-10-05 22:50:04,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 22:50:04,320 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-10-05 22:50:04,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-05 22:50:04,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:50:04,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:50:04,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-05 22:50:04,321 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:50:04,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:50:04,321 INFO L82 PathProgramCache]: Analyzing trace with hash 2139262285, now seen corresponding path program 1 times [2020-10-05 22:50:04,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:50:04,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75306927] [2020-10-05 22:50:04,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:50:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:50:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:50:04,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75306927] [2020-10-05 22:50:04,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:50:04,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:50:04,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233873182] [2020-10-05 22:50:04,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:50:04,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:50:04,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:50:04,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:50:04,361 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 4 states. [2020-10-05 22:50:04,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:50:04,376 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-10-05 22:50:04,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:50:04,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-05 22:50:04,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:50:04,377 INFO L225 Difference]: With dead ends: 51 [2020-10-05 22:50:04,377 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:50:04,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:50:04,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:50:04,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:50:04,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:50:04,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:50:04,378 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-05 22:50:04,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:50:04,378 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:50:04,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:50:04,378 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:50:04,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:50:04,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-05 22:50:04,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:50:04 BasicIcfg [2020-10-05 22:50:04,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:50:04,386 INFO L168 Benchmark]: Toolchain (without parser) took 5871.18 ms. Allocated memory was 140.5 MB in the beginning and 286.3 MB in the end (delta: 145.8 MB). Free memory was 101.2 MB in the beginning and 126.6 MB in the end (delta: -25.4 MB). Peak memory consumption was 120.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:50:04,387 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:50:04,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.35 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 160.4 MB in the end (delta: -59.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-05 22:50:04,388 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.78 ms. Allocated memory is still 205.0 MB. Free memory was 160.4 MB in the beginning and 157.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-05 22:50:04,389 INFO L168 Benchmark]: Boogie Preprocessor took 29.97 ms. Allocated memory is still 205.0 MB. Free memory was 157.7 MB in the beginning and 156.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:50:04,390 INFO L168 Benchmark]: RCFGBuilder took 490.53 ms. Allocated memory is still 205.0 MB. Free memory was 156.4 MB in the beginning and 132.5 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:50:04,390 INFO L168 Benchmark]: TraceAbstraction took 4453.24 ms. Allocated memory was 205.0 MB in the beginning and 286.3 MB in the end (delta: 81.3 MB). Free memory was 131.9 MB in the beginning and 126.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. [2020-10-05 22:50:04,394 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 838.35 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 160.4 MB in the end (delta: -59.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.78 ms. Allocated memory is still 205.0 MB. Free memory was 160.4 MB in the beginning and 157.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.97 ms. Allocated memory is still 205.0 MB. Free memory was 157.7 MB in the beginning and 156.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 490.53 ms. Allocated memory is still 205.0 MB. Free memory was 156.4 MB in the beginning and 132.5 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4453.24 ms. Allocated memory was 205.0 MB in the beginning and 286.3 MB in the end (delta: 81.3 MB). Free memory was 131.9 MB in the beginning and 126.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 91 ProgramPointsBefore, 39 ProgramPointsAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 953 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 32 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 0 MoverChecksTotal, 2895 CheckedPairsTotal, 62 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, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 14, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 369 SDtfs, 340 SDslu, 611 SDs, 0 SdLazy, 245 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 52 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 8248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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...