/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:41:05,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:41:05,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:41:05,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:41:05,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:41:05,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:41:05,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:41:05,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:41:05,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:41:05,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:41:05,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:41:05,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:41:05,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:41:05,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:41:05,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:41:05,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:41:05,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:41:05,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:41:05,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:41:05,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:41:05,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:41:05,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:41:05,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:41:05,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:41:05,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:41:05,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:41:05,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:41:05,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:41:05,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:41:05,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:41:05,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:41:05,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:41:05,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:41:05,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:41:05,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:41:05,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:41:05,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:41:05,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:41:05,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:41:05,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:41:05,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:41:05,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2020-04-18 02:41:05,313 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:41:05,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:41:05,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:41:05,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:41:05,318 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:41:05,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:41:05,319 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:41:05,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:41:05,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:41:05,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:41:05,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:41:05,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:41:05,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:41:05,322 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:41:05,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:41:05,323 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:41:05,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:41:05,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:41:05,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:41:05,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:41:05,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:41:05,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:41:05,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:41:05,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:41:05,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:41:05,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:41:05,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:41:05,326 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:41:05,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:41:05,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:41:05,608 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:41:05,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:41:05,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:41:05,625 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:41:05,625 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:41:05,626 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-04-18 02:41:05,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd5565695/fcb99f2a636d4ff588c8e6f285418da4/FLAG70d01f56d [2020-04-18 02:41:06,266 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:41:06,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-04-18 02:41:06,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd5565695/fcb99f2a636d4ff588c8e6f285418da4/FLAG70d01f56d [2020-04-18 02:41:06,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd5565695/fcb99f2a636d4ff588c8e6f285418da4 [2020-04-18 02:41:06,549 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:41:06,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:41:06,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:41:06,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:41:06,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:41:06,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:41:06" (1/1) ... [2020-04-18 02:41:06,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66be68cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:06, skipping insertion in model container [2020-04-18 02:41:06,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:41:06" (1/1) ... [2020-04-18 02:41:06,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:41:06,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:41:07,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:41:07,182 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:41:07,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:41:07,346 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:41:07,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:07 WrapperNode [2020-04-18 02:41:07,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:41:07,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:41:07,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:41:07,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:41:07,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:07" (1/1) ... [2020-04-18 02:41:07,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:07" (1/1) ... [2020-04-18 02:41:07,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:41:07,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:41:07,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:41:07,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:41:07,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:07" (1/1) ... [2020-04-18 02:41:07,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:07" (1/1) ... [2020-04-18 02:41:07,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:07" (1/1) ... [2020-04-18 02:41:07,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:07" (1/1) ... [2020-04-18 02:41:07,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:07" (1/1) ... [2020-04-18 02:41:07,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:07" (1/1) ... [2020-04-18 02:41:07,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:07" (1/1) ... [2020-04-18 02:41:07,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:41:07,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:41:07,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:41:07,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:41:07,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:07" (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 [2020-04-18 02:41:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:41:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:41:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:41:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:41:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:41:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:41:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:41:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:41:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 02:41:07,497 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 02:41:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-04-18 02:41:07,497 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-04-18 02:41:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:41:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:41:07,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:41:07,499 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 02:41:07,964 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:41:07,964 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:41:07,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:41:07 BoogieIcfgContainer [2020-04-18 02:41:07,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:41:07,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:41:07,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:41:07,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:41:07,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:41:06" (1/3) ... [2020-04-18 02:41:07,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10305605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:41:07, skipping insertion in model container [2020-04-18 02:41:07,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:07" (2/3) ... [2020-04-18 02:41:07,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10305605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:41:07, skipping insertion in model container [2020-04-18 02:41:07,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:41:07" (3/3) ... [2020-04-18 02:41:07,978 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-04-18 02:41:07,988 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:41:07,989 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:41:07,995 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:41:07,996 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:41:08,026 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,026 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,026 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,028 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,029 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,029 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,030 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,030 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,030 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,030 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,031 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,031 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,033 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,033 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,033 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,033 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,035 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,035 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,036 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,036 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,036 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,036 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,038 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,038 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,047 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,047 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,047 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,048 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,064 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,064 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,064 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,065 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,067 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,067 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,068 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,069 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,071 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,071 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,071 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,072 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:08,089 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 02:41:08,107 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:41:08,107 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:41:08,108 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:41:08,108 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:41:08,108 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:41:08,108 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:41:08,108 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:41:08,108 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:41:08,124 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-04-18 02:41:08,126 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-18 02:41:08,174 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-18 02:41:08,175 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:41:08,181 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-18 02:41:08,184 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-18 02:41:08,228 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-18 02:41:08,228 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:41:08,229 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-18 02:41:08,237 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-04-18 02:41:08,239 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:41:09,757 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-18 02:41:09,834 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-04-18 02:41:09,834 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-04-18 02:41:09,844 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-04-18 02:41:09,959 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-04-18 02:41:09,963 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-04-18 02:41:09,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 02:41:09,984 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:09,985 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:09,985 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:09,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:09,996 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-04-18 02:41:10,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:10,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465839693] [2020-04-18 02:41:10,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:10,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:10,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465839693] [2020-04-18 02:41:10,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:10,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:41:10,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755747022] [2020-04-18 02:41:10,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 02:41:10,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:10,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 02:41:10,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 02:41:10,307 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-04-18 02:41:10,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:10,362 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-04-18 02:41:10,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 02:41:10,364 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-04-18 02:41:10,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:10,404 INFO L225 Difference]: With dead ends: 850 [2020-04-18 02:41:10,404 INFO L226 Difference]: Without dead ends: 706 [2020-04-18 02:41:10,405 INFO L678 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 [2020-04-18 02:41:10,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-04-18 02:41:10,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-04-18 02:41:10,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-04-18 02:41:10,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-04-18 02:41:10,540 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-04-18 02:41:10,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:10,541 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-04-18 02:41:10,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 02:41:10,542 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-04-18 02:41:10,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 02:41:10,547 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:10,547 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:10,547 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:10,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:10,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-04-18 02:41:10,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:10,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499136142] [2020-04-18 02:41:10,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:10,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:10,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499136142] [2020-04-18 02:41:10,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:10,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:41:10,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954654500] [2020-04-18 02:41:10,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:41:10,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:10,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:41:10,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:41:10,678 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-04-18 02:41:10,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:10,725 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-04-18 02:41:10,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:41:10,725 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-18 02:41:10,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:10,732 INFO L225 Difference]: With dead ends: 778 [2020-04-18 02:41:10,732 INFO L226 Difference]: Without dead ends: 634 [2020-04-18 02:41:10,733 INFO L678 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 [2020-04-18 02:41:10,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-04-18 02:41:10,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-04-18 02:41:10,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-04-18 02:41:10,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-04-18 02:41:10,768 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-04-18 02:41:10,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:10,768 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-04-18 02:41:10,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:41:10,768 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-04-18 02:41:10,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 02:41:10,771 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:10,771 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:10,771 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:10,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:10,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-04-18 02:41:10,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:10,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336948255] [2020-04-18 02:41:10,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:10,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336948255] [2020-04-18 02:41:10,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:10,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:41:10,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129443158] [2020-04-18 02:41:10,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:41:10,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:10,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:41:10,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:41:10,874 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states. [2020-04-18 02:41:10,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:10,903 INFO L93 Difference]: Finished difference Result 688 states and 2256 transitions. [2020-04-18 02:41:10,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:41:10,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 02:41:10,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:10,909 INFO L225 Difference]: With dead ends: 688 [2020-04-18 02:41:10,909 INFO L226 Difference]: Without dead ends: 580 [2020-04-18 02:41:10,909 INFO L678 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 [2020-04-18 02:41:10,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-04-18 02:41:10,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-04-18 02:41:10,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-04-18 02:41:10,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1932 transitions. [2020-04-18 02:41:10,933 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1932 transitions. Word has length 12 [2020-04-18 02:41:10,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:10,933 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 1932 transitions. [2020-04-18 02:41:10,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:41:10,934 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1932 transitions. [2020-04-18 02:41:10,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 02:41:10,938 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:10,939 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:10,939 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:10,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:10,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 1 times [2020-04-18 02:41:10,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:10,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178626057] [2020-04-18 02:41:10,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:11,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:11,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178626057] [2020-04-18 02:41:11,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:11,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:41:11,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430201427] [2020-04-18 02:41:11,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:41:11,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:11,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:41:11,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:11,044 INFO L87 Difference]: Start difference. First operand 580 states and 1932 transitions. Second operand 5 states. [2020-04-18 02:41:11,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:11,129 INFO L93 Difference]: Finished difference Result 751 states and 2457 transitions. [2020-04-18 02:41:11,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:41:11,130 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-18 02:41:11,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:11,133 INFO L225 Difference]: With dead ends: 751 [2020-04-18 02:41:11,133 INFO L226 Difference]: Without dead ends: 358 [2020-04-18 02:41:11,134 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 02:41:11,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-04-18 02:41:11,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-04-18 02:41:11,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-04-18 02:41:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-04-18 02:41:11,147 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-04-18 02:41:11,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:11,147 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-04-18 02:41:11,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:41:11,148 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-04-18 02:41:11,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 02:41:11,149 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:11,149 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:11,149 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:11,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:11,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-04-18 02:41:11,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:11,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762553899] [2020-04-18 02:41:11,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:11,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:11,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762553899] [2020-04-18 02:41:11,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:11,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:41:11,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104655177] [2020-04-18 02:41:11,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:41:11,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:11,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:41:11,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:11,199 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-04-18 02:41:11,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:11,286 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-04-18 02:41:11,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:41:11,287 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-18 02:41:11,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:11,289 INFO L225 Difference]: With dead ends: 496 [2020-04-18 02:41:11,289 INFO L226 Difference]: Without dead ends: 262 [2020-04-18 02:41:11,289 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 02:41:11,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-04-18 02:41:11,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-04-18 02:41:11,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-04-18 02:41:11,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-04-18 02:41:11,299 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-04-18 02:41:11,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:11,299 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-04-18 02:41:11,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:41:11,300 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-04-18 02:41:11,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 02:41:11,300 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:11,301 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:11,301 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:11,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:11,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-04-18 02:41:11,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:11,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942876621] [2020-04-18 02:41:11,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:11,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:11,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942876621] [2020-04-18 02:41:11,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:11,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:41:11,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85756562] [2020-04-18 02:41:11,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:41:11,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:11,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:41:11,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:41:11,417 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-04-18 02:41:11,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:11,464 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-04-18 02:41:11,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:41:11,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-04-18 02:41:11,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:11,467 INFO L225 Difference]: With dead ends: 319 [2020-04-18 02:41:11,467 INFO L226 Difference]: Without dead ends: 238 [2020-04-18 02:41:11,467 INFO L678 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 [2020-04-18 02:41:11,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-04-18 02:41:11,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-04-18 02:41:11,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-04-18 02:41:11,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-04-18 02:41:11,475 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-04-18 02:41:11,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:11,476 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-04-18 02:41:11,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:41:11,476 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-04-18 02:41:11,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 02:41:11,477 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:11,477 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:11,477 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:11,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:11,478 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-04-18 02:41:11,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:11,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942162700] [2020-04-18 02:41:11,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:11,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:11,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942162700] [2020-04-18 02:41:11,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:11,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:41:11,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710871924] [2020-04-18 02:41:11,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:41:11,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:11,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:41:11,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:11,598 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-04-18 02:41:11,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:11,660 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-04-18 02:41:11,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:41:11,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-04-18 02:41:11,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:11,662 INFO L225 Difference]: With dead ends: 247 [2020-04-18 02:41:11,662 INFO L226 Difference]: Without dead ends: 182 [2020-04-18 02:41:11,663 INFO L678 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 [2020-04-18 02:41:11,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-04-18 02:41:11,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-04-18 02:41:11,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-04-18 02:41:11,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-04-18 02:41:11,670 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-04-18 02:41:11,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:11,670 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-04-18 02:41:11,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:41:11,670 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-04-18 02:41:11,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:41:11,671 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:11,671 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:11,671 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:11,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:11,672 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-04-18 02:41:11,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:11,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894816662] [2020-04-18 02:41:11,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:11,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:11,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894816662] [2020-04-18 02:41:11,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:11,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 02:41:11,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540426556] [2020-04-18 02:41:11,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 02:41:11,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:11,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 02:41:11,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:41:11,774 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-04-18 02:41:11,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:11,841 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-04-18 02:41:11,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 02:41:11,842 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-04-18 02:41:11,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:11,843 INFO L225 Difference]: With dead ends: 165 [2020-04-18 02:41:11,843 INFO L226 Difference]: Without dead ends: 132 [2020-04-18 02:41:11,844 INFO L678 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 [2020-04-18 02:41:11,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-04-18 02:41:11,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-04-18 02:41:11,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-04-18 02:41:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-04-18 02:41:11,849 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-04-18 02:41:11,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:11,849 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-04-18 02:41:11,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 02:41:11,850 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-04-18 02:41:11,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 02:41:11,850 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:11,851 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:11,851 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:11,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:11,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-04-18 02:41:11,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:11,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037442795] [2020-04-18 02:41:11,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:11,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:11,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037442795] [2020-04-18 02:41:11,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:11,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 02:41:11,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146789615] [2020-04-18 02:41:11,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 02:41:11,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:11,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 02:41:11,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:41:11,966 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-04-18 02:41:12,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:12,056 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-04-18 02:41:12,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 02:41:12,056 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-04-18 02:41:12,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:12,057 INFO L225 Difference]: With dead ends: 121 [2020-04-18 02:41:12,057 INFO L226 Difference]: Without dead ends: 112 [2020-04-18 02:41:12,057 INFO L678 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 [2020-04-18 02:41:12,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-04-18 02:41:12,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-04-18 02:41:12,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-04-18 02:41:12,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-04-18 02:41:12,063 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-04-18 02:41:12,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:12,064 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-04-18 02:41:12,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 02:41:12,064 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-04-18 02:41:12,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 02:41:12,065 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:12,066 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:12,066 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:12,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:12,066 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-04-18 02:41:12,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:12,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980895511] [2020-04-18 02:41:12,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:12,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:12,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980895511] [2020-04-18 02:41:12,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:12,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:41:12,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184299275] [2020-04-18 02:41:12,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:41:12,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:12,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:41:12,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:12,120 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-04-18 02:41:12,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:12,186 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-04-18 02:41:12,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:41:12,186 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-04-18 02:41:12,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:12,187 INFO L225 Difference]: With dead ends: 146 [2020-04-18 02:41:12,187 INFO L226 Difference]: Without dead ends: 52 [2020-04-18 02:41:12,188 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:41:12,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-04-18 02:41:12,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-04-18 02:41:12,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-04-18 02:41:12,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-04-18 02:41:12,192 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-04-18 02:41:12,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:12,192 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-04-18 02:41:12,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:41:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-04-18 02:41:12,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 02:41:12,193 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:12,193 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:12,194 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:12,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:12,194 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-04-18 02:41:12,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:12,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849954451] [2020-04-18 02:41:12,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:12,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:12,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849954451] [2020-04-18 02:41:12,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:12,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:41:12,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288053513] [2020-04-18 02:41:12,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:41:12,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:12,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:41:12,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:12,263 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-04-18 02:41:12,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:12,292 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-04-18 02:41:12,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:41:12,293 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-04-18 02:41:12,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:12,293 INFO L225 Difference]: With dead ends: 51 [2020-04-18 02:41:12,293 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:41:12,294 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:41:12,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:41:12,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:41:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:41:12,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:41:12,295 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-04-18 02:41:12,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:12,295 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:41:12,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:41:12,295 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:41:12,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:41:12,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:41:12 BasicIcfg [2020-04-18 02:41:12,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:41:12,301 INFO L168 Benchmark]: Toolchain (without parser) took 5750.69 ms. Allocated memory was 145.8 MB in the beginning and 281.5 MB in the end (delta: 135.8 MB). Free memory was 102.4 MB in the beginning and 231.7 MB in the end (delta: -129.3 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:12,302 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 02:41:12,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 771.52 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.6 MB in the beginning and 157.7 MB in the end (delta: -57.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:12,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.65 ms. Allocated memory is still 203.4 MB. Free memory was 157.7 MB in the beginning and 155.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:12,305 INFO L168 Benchmark]: Boogie Preprocessor took 35.86 ms. Allocated memory is still 203.4 MB. Free memory was 155.7 MB in the beginning and 154.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:12,305 INFO L168 Benchmark]: RCFGBuilder took 537.63 ms. Allocated memory is still 203.4 MB. Free memory was 153.7 MB in the beginning and 129.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:12,306 INFO L168 Benchmark]: TraceAbstraction took 4329.09 ms. Allocated memory was 203.4 MB in the beginning and 281.5 MB in the end (delta: 78.1 MB). Free memory was 129.6 MB in the beginning and 231.7 MB in the end (delta: -102.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 02:41:12,310 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 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 771.52 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.6 MB in the beginning and 157.7 MB in the end (delta: -57.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.65 ms. Allocated memory is still 203.4 MB. Free memory was 157.7 MB in the beginning and 155.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.86 ms. Allocated memory is still 203.4 MB. Free memory was 155.7 MB in the beginning and 154.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 537.63 ms. Allocated memory is still 203.4 MB. Free memory was 153.7 MB in the beginning and 129.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4329.09 ms. Allocated memory was 203.4 MB in the beginning and 281.5 MB in the end (delta: 78.1 MB). Free memory was 129.6 MB in the beginning and 231.7 MB in the end (delta: -102.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 933 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 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, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 267 SDtfs, 328 SDslu, 473 SDs, 0 SdLazy, 205 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s 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, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...