/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 20:09:47,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 20:09:47,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 20:09:47,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 20:09:47,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 20:09:47,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 20:09:47,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 20:09:47,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 20:09:47,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 20:09:47,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 20:09:47,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 20:09:47,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 20:09:47,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 20:09:47,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 20:09:47,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 20:09:47,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 20:09:47,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 20:09:47,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 20:09:47,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 20:09:47,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 20:09:47,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 20:09:47,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 20:09:47,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 20:09:47,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 20:09:47,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 20:09:47,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 20:09:47,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 20:09:47,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 20:09:47,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 20:09:47,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 20:09:47,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 20:09:47,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 20:09:47,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 20:09:47,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 20:09:47,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 20:09:47,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 20:09:47,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 20:09:47,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 20:09:47,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 20:09:47,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 20:09:47,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 20:09:47,413 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-09-11 20:09:47,459 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 20:09:47,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 20:09:47,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 20:09:47,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 20:09:47,462 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 20:09:47,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 20:09:47,462 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 20:09:47,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 20:09:47,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 20:09:47,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 20:09:47,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 20:09:47,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 20:09:47,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 20:09:47,465 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 20:09:47,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 20:09:47,465 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 20:09:47,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 20:09:47,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 20:09:47,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 20:09:47,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 20:09:47,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 20:09:47,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 20:09:47,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 20:09:47,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-11 20:09:47,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 20:09:47,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 20:09:47,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 20:09:47,468 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-11 20:09:47,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 20:09:47,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 20:09:47,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 20:09:47,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 20:09:47,937 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 20:09:47,937 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 20:09:47,938 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2020-09-11 20:09:48,018 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5be896e66/3c71e8eaffd04dc29e98227dcd0b01bd/FLAGbbfbfd463 [2020-09-11 20:09:48,781 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 20:09:48,782 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2020-09-11 20:09:48,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5be896e66/3c71e8eaffd04dc29e98227dcd0b01bd/FLAGbbfbfd463 [2020-09-11 20:09:48,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5be896e66/3c71e8eaffd04dc29e98227dcd0b01bd [2020-09-11 20:09:48,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 20:09:48,888 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 20:09:48,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 20:09:48,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 20:09:48,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 20:09:48,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:09:48" (1/1) ... [2020-09-11 20:09:48,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af9ea8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:48, skipping insertion in model container [2020-09-11 20:09:48,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:09:48" (1/1) ... [2020-09-11 20:09:48,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 20:09:48,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 20:09:49,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 20:09:49,849 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 20:09:49,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 20:09:50,254 INFO L208 MainTranslator]: Completed translation [2020-09-11 20:09:50,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:50 WrapperNode [2020-09-11 20:09:50,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 20:09:50,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 20:09:50,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 20:09:50,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 20:09:50,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:50" (1/1) ... [2020-09-11 20:09:50,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:50" (1/1) ... [2020-09-11 20:09:50,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 20:09:50,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 20:09:50,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 20:09:50,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 20:09:50,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:50" (1/1) ... [2020-09-11 20:09:50,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:50" (1/1) ... [2020-09-11 20:09:50,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:50" (1/1) ... [2020-09-11 20:09:50,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:50" (1/1) ... [2020-09-11 20:09:50,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:50" (1/1) ... [2020-09-11 20:09:50,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:50" (1/1) ... [2020-09-11 20:09:50,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:50" (1/1) ... [2020-09-11 20:09:50,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 20:09:50,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 20:09:50,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 20:09:50,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 20:09:50,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 20:09:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 20:09:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-11 20:09:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-11 20:09:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 20:09:50,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 20:09:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-09-11 20:09:50,497 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-09-11 20:09:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 20:09:50,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 20:09:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-11 20:09:50,503 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 20:09:51,275 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 20:09:51,275 INFO L295 CfgBuilder]: Removed 20 assume(true) statements. [2020-09-11 20:09:51,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:09:51 BoogieIcfgContainer [2020-09-11 20:09:51,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 20:09:51,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 20:09:51,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 20:09:51,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 20:09:51,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 08:09:48" (1/3) ... [2020-09-11 20:09:51,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394ae1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:09:51, skipping insertion in model container [2020-09-11 20:09:51,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:09:50" (2/3) ... [2020-09-11 20:09:51,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394ae1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:09:51, skipping insertion in model container [2020-09-11 20:09:51,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:09:51" (3/3) ... [2020-09-11 20:09:51,291 INFO L109 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2020-09-11 20:09:51,303 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 20:09:51,303 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-11 20:09:51,314 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-09-11 20:09:51,315 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 20:09:51,349 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,349 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,349 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,349 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,350 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,350 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,350 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,350 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,350 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,354 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,354 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,354 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,354 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,356 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,356 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,359 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,359 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,359 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,359 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,360 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,360 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,360 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,360 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,361 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,361 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,362 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,362 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,362 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,367 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,367 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,368 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,368 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,368 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,368 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,369 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,370 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,382 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,383 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,383 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,383 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,384 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,384 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,385 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,385 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,385 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,385 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,386 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:09:51,421 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-11 20:09:51,448 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 20:09:51,449 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 20:09:51,449 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-11 20:09:51,449 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 20:09:51,449 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 20:09:51,449 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 20:09:51,450 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 20:09:51,450 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 20:09:51,472 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 131 transitions, 284 flow [2020-09-11 20:09:51,475 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 129 places, 131 transitions, 284 flow [2020-09-11 20:09:51,554 INFO L129 PetriNetUnfolder]: 9/169 cut-off events. [2020-09-11 20:09:51,554 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-11 20:09:51,561 INFO L80 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 169 events. 9/169 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 347 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2020-09-11 20:09:51,567 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 129 places, 131 transitions, 284 flow [2020-09-11 20:09:51,610 INFO L129 PetriNetUnfolder]: 9/169 cut-off events. [2020-09-11 20:09:51,610 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-11 20:09:51,612 INFO L80 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 169 events. 9/169 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 347 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2020-09-11 20:09:51,615 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2200 [2020-09-11 20:09:51,617 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-11 20:09:52,444 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-11 20:09:52,469 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-11 20:09:52,475 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-11 20:09:52,495 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-11 20:09:52,496 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-11 20:09:52,497 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:95, output treesize:67 [2020-09-11 20:09:54,075 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-11 20:09:54,104 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-11 20:09:54,111 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-11 20:09:54,136 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-11 20:09:54,138 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-11 20:09:54,138 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:74 [2020-09-11 20:09:54,529 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-09-11 20:09:54,902 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-09-11 20:09:54,928 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-11 20:09:55,011 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-11 20:09:55,027 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-11 20:09:55,101 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-11 20:09:55,103 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-09-11 20:09:55,103 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:148, output treesize:160 [2020-09-11 20:09:55,779 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-09-11 20:09:56,530 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-09-11 20:09:56,929 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-09-11 20:09:57,185 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-09-11 20:09:57,448 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-09-11 20:09:57,633 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-09-11 20:09:57,677 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2954 [2020-09-11 20:09:57,677 INFO L214 etLargeBlockEncoding]: Total number of compositions: 134 [2020-09-11 20:09:57,681 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 32 transitions, 86 flow [2020-09-11 20:09:57,700 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 190 states. [2020-09-11 20:09:57,706 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2020-09-11 20:09:57,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-11 20:09:57,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:09:57,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-11 20:09:57,731 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:09:57,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:09:57,740 INFO L82 PathProgramCache]: Analyzing trace with hash 14364445, now seen corresponding path program 1 times [2020-09-11 20:09:57,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:09:57,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097399693] [2020-09-11 20:09:57,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:09:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:09:58,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:09:58,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097399693] [2020-09-11 20:09:58,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:09:58,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 20:09:58,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191934013] [2020-09-11 20:09:58,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:09:58,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:09:58,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:09:58,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:09:58,352 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 3 states. [2020-09-11 20:09:58,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:09:58,498 INFO L93 Difference]: Finished difference Result 248 states and 560 transitions. [2020-09-11 20:09:58,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:09:58,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-11 20:09:58,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:09:58,521 INFO L225 Difference]: With dead ends: 248 [2020-09-11 20:09:58,521 INFO L226 Difference]: Without dead ends: 230 [2020-09-11 20:09:58,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:09:58,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-09-11 20:09:58,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 200. [2020-09-11 20:09:58,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-09-11 20:09:58,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 444 transitions. [2020-09-11 20:09:58,603 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 444 transitions. Word has length 4 [2020-09-11 20:09:58,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:09:58,603 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 444 transitions. [2020-09-11 20:09:58,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:09:58,604 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 444 transitions. [2020-09-11 20:09:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-11 20:09:58,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:09:58,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-11 20:09:58,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 20:09:58,605 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:09:58,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:09:58,605 INFO L82 PathProgramCache]: Analyzing trace with hash 445298819, now seen corresponding path program 1 times [2020-09-11 20:09:58,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:09:58,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531831612] [2020-09-11 20:09:58,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:09:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:09:58,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:09:58,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531831612] [2020-09-11 20:09:58,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:09:58,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 20:09:58,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443829050] [2020-09-11 20:09:58,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:09:58,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:09:58,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:09:58,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:09:58,820 INFO L87 Difference]: Start difference. First operand 200 states and 444 transitions. Second operand 3 states. [2020-09-11 20:09:58,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:09:58,949 INFO L93 Difference]: Finished difference Result 243 states and 536 transitions. [2020-09-11 20:09:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:09:58,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-09-11 20:09:58,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:09:58,953 INFO L225 Difference]: With dead ends: 243 [2020-09-11 20:09:58,953 INFO L226 Difference]: Without dead ends: 236 [2020-09-11 20:09:58,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:09:58,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-09-11 20:09:58,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 221. [2020-09-11 20:09:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-09-11 20:09:58,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 505 transitions. [2020-09-11 20:09:58,986 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 505 transitions. Word has length 5 [2020-09-11 20:09:58,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:09:58,987 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 505 transitions. [2020-09-11 20:09:58,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:09:58,987 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 505 transitions. [2020-09-11 20:09:58,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 20:09:58,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:09:58,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:09:58,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 20:09:58,989 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:09:58,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:09:58,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1770707455, now seen corresponding path program 1 times [2020-09-11 20:09:58,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:09:58,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153630208] [2020-09-11 20:09:58,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:09:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:09:59,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:09:59,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153630208] [2020-09-11 20:09:59,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:09:59,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 20:09:59,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571231997] [2020-09-11 20:09:59,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:09:59,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:09:59,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:09:59,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:09:59,121 INFO L87 Difference]: Start difference. First operand 221 states and 505 transitions. Second operand 3 states. [2020-09-11 20:09:59,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:09:59,137 INFO L93 Difference]: Finished difference Result 86 states and 167 transitions. [2020-09-11 20:09:59,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:09:59,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-11 20:09:59,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:09:59,138 INFO L225 Difference]: With dead ends: 86 [2020-09-11 20:09:59,139 INFO L226 Difference]: Without dead ends: 86 [2020-09-11 20:09:59,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:09:59,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-11 20:09:59,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-09-11 20:09:59,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-11 20:09:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 167 transitions. [2020-09-11 20:09:59,146 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 167 transitions. Word has length 9 [2020-09-11 20:09:59,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:09:59,146 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 167 transitions. [2020-09-11 20:09:59,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:09:59,147 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 167 transitions. [2020-09-11 20:09:59,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:09:59,148 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:09:59,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:09:59,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 20:09:59,149 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:09:59,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:09:59,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1268591532, now seen corresponding path program 1 times [2020-09-11 20:09:59,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:09:59,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016766845] [2020-09-11 20:09:59,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:09:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:09:59,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:09:59,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016766845] [2020-09-11 20:09:59,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:09:59,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-11 20:09:59,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096342177] [2020-09-11 20:09:59,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-11 20:09:59,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:09:59,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-11 20:09:59,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-11 20:09:59,641 INFO L87 Difference]: Start difference. First operand 86 states and 167 transitions. Second operand 13 states. [2020-09-11 20:10:00,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:10:00,913 INFO L93 Difference]: Finished difference Result 86 states and 166 transitions. [2020-09-11 20:10:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-11 20:10:00,914 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 18 [2020-09-11 20:10:00,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:10:00,915 INFO L225 Difference]: With dead ends: 86 [2020-09-11 20:10:00,915 INFO L226 Difference]: Without dead ends: 74 [2020-09-11 20:10:00,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=237, Invalid=465, Unknown=0, NotChecked=0, Total=702 [2020-09-11 20:10:00,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-11 20:10:00,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-11 20:10:00,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-11 20:10:00,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 145 transitions. [2020-09-11 20:10:00,921 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 145 transitions. Word has length 18 [2020-09-11 20:10:00,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:10:00,921 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 145 transitions. [2020-09-11 20:10:00,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-11 20:10:00,922 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 145 transitions. [2020-09-11 20:10:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:10:00,923 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:10:00,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:10:00,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 20:10:00,924 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:10:00,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:10:00,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1297219722, now seen corresponding path program 1 times [2020-09-11 20:10:00,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:10:00,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796990189] [2020-09-11 20:10:00,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:10:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:10:01,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:10:01,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796990189] [2020-09-11 20:10:01,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:10:01,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-11 20:10:01,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121886601] [2020-09-11 20:10:01,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-11 20:10:01,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:10:01,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-11 20:10:01,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-11 20:10:01,448 INFO L87 Difference]: Start difference. First operand 74 states and 145 transitions. Second operand 8 states. [2020-09-11 20:10:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:10:01,821 INFO L93 Difference]: Finished difference Result 117 states and 209 transitions. [2020-09-11 20:10:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 20:10:01,822 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-09-11 20:10:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:10:01,823 INFO L225 Difference]: With dead ends: 117 [2020-09-11 20:10:01,823 INFO L226 Difference]: Without dead ends: 117 [2020-09-11 20:10:01,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-11 20:10:01,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-11 20:10:01,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 94. [2020-09-11 20:10:01,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-11 20:10:01,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 175 transitions. [2020-09-11 20:10:01,829 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 175 transitions. Word has length 18 [2020-09-11 20:10:01,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:10:01,830 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 175 transitions. [2020-09-11 20:10:01,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-11 20:10:01,830 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 175 transitions. [2020-09-11 20:10:01,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:10:01,831 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:10:01,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:10:01,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 20:10:01,832 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:10:01,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:10:01,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1297219740, now seen corresponding path program 1 times [2020-09-11 20:10:01,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:10:01,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645687758] [2020-09-11 20:10:01,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:10:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:10:02,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:10:02,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645687758] [2020-09-11 20:10:02,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:10:02,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-11 20:10:02,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917407398] [2020-09-11 20:10:02,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-11 20:10:02,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:10:02,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-11 20:10:02,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-09-11 20:10:02,937 INFO L87 Difference]: Start difference. First operand 94 states and 175 transitions. Second operand 14 states. [2020-09-11 20:10:04,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:10:04,129 INFO L93 Difference]: Finished difference Result 153 states and 271 transitions. [2020-09-11 20:10:04,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-11 20:10:04,129 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-11 20:10:04,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:10:04,130 INFO L225 Difference]: With dead ends: 153 [2020-09-11 20:10:04,131 INFO L226 Difference]: Without dead ends: 145 [2020-09-11 20:10:04,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2020-09-11 20:10:04,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-09-11 20:10:04,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 100. [2020-09-11 20:10:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-11 20:10:04,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 185 transitions. [2020-09-11 20:10:04,136 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 185 transitions. Word has length 18 [2020-09-11 20:10:04,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:10:04,136 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 185 transitions. [2020-09-11 20:10:04,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-11 20:10:04,137 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 185 transitions. [2020-09-11 20:10:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:10:04,138 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:10:04,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:10:04,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 20:10:04,139 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:10:04,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:10:04,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1046484834, now seen corresponding path program 2 times [2020-09-11 20:10:04,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:10:04,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478225673] [2020-09-11 20:10:04,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:10:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:10:05,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:10:05,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478225673] [2020-09-11 20:10:05,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:10:05,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-11 20:10:05,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112832635] [2020-09-11 20:10:05,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-11 20:10:05,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:10:05,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-11 20:10:05,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-11 20:10:05,188 INFO L87 Difference]: Start difference. First operand 100 states and 185 transitions. Second operand 14 states. [2020-09-11 20:10:06,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:10:06,481 INFO L93 Difference]: Finished difference Result 155 states and 274 transitions. [2020-09-11 20:10:06,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-11 20:10:06,482 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-11 20:10:06,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:10:06,484 INFO L225 Difference]: With dead ends: 155 [2020-09-11 20:10:06,484 INFO L226 Difference]: Without dead ends: 143 [2020-09-11 20:10:06,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-09-11 20:10:06,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-09-11 20:10:06,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 98. [2020-09-11 20:10:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-11 20:10:06,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 181 transitions. [2020-09-11 20:10:06,489 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 181 transitions. Word has length 18 [2020-09-11 20:10:06,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:10:06,489 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 181 transitions. [2020-09-11 20:10:06,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-11 20:10:06,490 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 181 transitions. [2020-09-11 20:10:06,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:10:06,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:10:06,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:10:06,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 20:10:06,491 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:10:06,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:10:06,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1347055900, now seen corresponding path program 3 times [2020-09-11 20:10:06,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:10:06,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697948884] [2020-09-11 20:10:06,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:10:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:10:07,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:10:07,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697948884] [2020-09-11 20:10:07,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:10:07,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-11 20:10:07,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866729638] [2020-09-11 20:10:07,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-11 20:10:07,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:10:07,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-11 20:10:07,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-11 20:10:07,568 INFO L87 Difference]: Start difference. First operand 98 states and 181 transitions. Second operand 14 states. [2020-09-11 20:10:08,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:10:08,780 INFO L93 Difference]: Finished difference Result 139 states and 253 transitions. [2020-09-11 20:10:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-11 20:10:08,781 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-11 20:10:08,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:10:08,783 INFO L225 Difference]: With dead ends: 139 [2020-09-11 20:10:08,783 INFO L226 Difference]: Without dead ends: 123 [2020-09-11 20:10:08,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-09-11 20:10:08,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-11 20:10:08,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 96. [2020-09-11 20:10:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-11 20:10:08,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 177 transitions. [2020-09-11 20:10:08,788 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 177 transitions. Word has length 18 [2020-09-11 20:10:08,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:10:08,788 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 177 transitions. [2020-09-11 20:10:08,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-11 20:10:08,789 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 177 transitions. [2020-09-11 20:10:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:10:08,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:10:08,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:10:08,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 20:10:08,790 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:10:08,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:10:08,791 INFO L82 PathProgramCache]: Analyzing trace with hash 646402192, now seen corresponding path program 2 times [2020-09-11 20:10:08,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:10:08,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753731973] [2020-09-11 20:10:08,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:10:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:10:09,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:10:09,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753731973] [2020-09-11 20:10:09,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:10:09,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-11 20:10:09,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5120988] [2020-09-11 20:10:09,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-11 20:10:09,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:10:09,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-11 20:10:09,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-11 20:10:09,298 INFO L87 Difference]: Start difference. First operand 96 states and 177 transitions. Second operand 8 states. [2020-09-11 20:10:09,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:10:09,793 INFO L93 Difference]: Finished difference Result 119 states and 212 transitions. [2020-09-11 20:10:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-11 20:10:09,794 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-09-11 20:10:09,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:10:09,795 INFO L225 Difference]: With dead ends: 119 [2020-09-11 20:10:09,795 INFO L226 Difference]: Without dead ends: 119 [2020-09-11 20:10:09,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-11 20:10:09,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-11 20:10:09,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-09-11 20:10:09,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-11 20:10:09,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 177 transitions. [2020-09-11 20:10:09,801 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 177 transitions. Word has length 18 [2020-09-11 20:10:09,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:10:09,801 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 177 transitions. [2020-09-11 20:10:09,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-11 20:10:09,801 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 177 transitions. [2020-09-11 20:10:09,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:10:09,802 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:10:09,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:10:09,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-11 20:10:09,803 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:10:09,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:10:09,803 INFO L82 PathProgramCache]: Analyzing trace with hash 646402210, now seen corresponding path program 4 times [2020-09-11 20:10:09,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:10:09,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99754183] [2020-09-11 20:10:09,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:10:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:10:10,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:10:10,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99754183] [2020-09-11 20:10:10,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:10:10,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-11 20:10:10,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531718471] [2020-09-11 20:10:10,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-11 20:10:10,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:10:10,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-11 20:10:10,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-11 20:10:10,940 INFO L87 Difference]: Start difference. First operand 96 states and 177 transitions. Second operand 14 states. [2020-09-11 20:10:12,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:10:12,205 INFO L93 Difference]: Finished difference Result 135 states and 244 transitions. [2020-09-11 20:10:12,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-11 20:10:12,208 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-11 20:10:12,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:10:12,209 INFO L225 Difference]: With dead ends: 135 [2020-09-11 20:10:12,210 INFO L226 Difference]: Without dead ends: 113 [2020-09-11 20:10:12,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-09-11 20:10:12,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-09-11 20:10:12,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 92. [2020-09-11 20:10:12,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-11 20:10:12,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 171 transitions. [2020-09-11 20:10:12,214 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 171 transitions. Word has length 18 [2020-09-11 20:10:12,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:10:12,214 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 171 transitions. [2020-09-11 20:10:12,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-11 20:10:12,215 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 171 transitions. [2020-09-11 20:10:12,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:10:12,215 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:10:12,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:10:12,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-11 20:10:12,216 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:10:12,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:10:12,216 INFO L82 PathProgramCache]: Analyzing trace with hash -318962108, now seen corresponding path program 5 times [2020-09-11 20:10:12,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:10:12,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525903900] [2020-09-11 20:10:12,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:10:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:10:13,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:10:13,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525903900] [2020-09-11 20:10:13,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:10:13,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-11 20:10:13,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268968384] [2020-09-11 20:10:13,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-11 20:10:13,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:10:13,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-11 20:10:13,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-09-11 20:10:13,267 INFO L87 Difference]: Start difference. First operand 92 states and 171 transitions. Second operand 14 states. [2020-09-11 20:10:14,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:10:14,469 INFO L93 Difference]: Finished difference Result 152 states and 280 transitions. [2020-09-11 20:10:14,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-11 20:10:14,469 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-11 20:10:14,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:10:14,471 INFO L225 Difference]: With dead ends: 152 [2020-09-11 20:10:14,471 INFO L226 Difference]: Without dead ends: 144 [2020-09-11 20:10:14,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-09-11 20:10:14,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-11 20:10:14,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 100. [2020-09-11 20:10:14,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-11 20:10:14,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 187 transitions. [2020-09-11 20:10:14,477 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 187 transitions. Word has length 18 [2020-09-11 20:10:14,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:10:14,477 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 187 transitions. [2020-09-11 20:10:14,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-11 20:10:14,478 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 187 transitions. [2020-09-11 20:10:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:10:14,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:10:14,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:10:14,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-11 20:10:14,479 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:10:14,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:10:14,479 INFO L82 PathProgramCache]: Analyzing trace with hash -569697014, now seen corresponding path program 6 times [2020-09-11 20:10:14,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:10:14,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905078178] [2020-09-11 20:10:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:10:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:10:15,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:10:15,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905078178] [2020-09-11 20:10:15,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:10:15,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-11 20:10:15,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499052211] [2020-09-11 20:10:15,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-11 20:10:15,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:10:15,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-11 20:10:15,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-11 20:10:15,536 INFO L87 Difference]: Start difference. First operand 100 states and 187 transitions. Second operand 14 states. [2020-09-11 20:10:16,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:10:16,757 INFO L93 Difference]: Finished difference Result 154 states and 283 transitions. [2020-09-11 20:10:16,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-11 20:10:16,759 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-11 20:10:16,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:10:16,760 INFO L225 Difference]: With dead ends: 154 [2020-09-11 20:10:16,760 INFO L226 Difference]: Without dead ends: 142 [2020-09-11 20:10:16,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-09-11 20:10:16,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-09-11 20:10:16,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 98. [2020-09-11 20:10:16,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-11 20:10:16,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 183 transitions. [2020-09-11 20:10:16,766 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 183 transitions. Word has length 18 [2020-09-11 20:10:16,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:10:16,767 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 183 transitions. [2020-09-11 20:10:16,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-11 20:10:16,767 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 183 transitions. [2020-09-11 20:10:16,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:10:16,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:10:16,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:10:16,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-11 20:10:16,768 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:10:16,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:10:16,769 INFO L82 PathProgramCache]: Analyzing trace with hash -269125948, now seen corresponding path program 7 times [2020-09-11 20:10:16,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:10:16,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432701858] [2020-09-11 20:10:16,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:10:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:10:17,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:10:17,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432701858] [2020-09-11 20:10:17,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:10:17,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-11 20:10:17,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026642451] [2020-09-11 20:10:17,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-11 20:10:17,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:10:17,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-11 20:10:17,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-11 20:10:17,791 INFO L87 Difference]: Start difference. First operand 98 states and 183 transitions. Second operand 14 states. [2020-09-11 20:10:18,296 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2020-09-11 20:10:18,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:10:18,990 INFO L93 Difference]: Finished difference Result 149 states and 278 transitions. [2020-09-11 20:10:18,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-11 20:10:18,990 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-11 20:10:18,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:10:18,992 INFO L225 Difference]: With dead ends: 149 [2020-09-11 20:10:18,992 INFO L226 Difference]: Without dead ends: 133 [2020-09-11 20:10:18,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-09-11 20:10:18,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-09-11 20:10:18,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 96. [2020-09-11 20:10:18,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-11 20:10:18,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 179 transitions. [2020-09-11 20:10:18,997 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 179 transitions. Word has length 18 [2020-09-11 20:10:18,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:10:18,997 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 179 transitions. [2020-09-11 20:10:18,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-11 20:10:18,998 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 179 transitions. [2020-09-11 20:10:18,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:10:18,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:10:18,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:10:18,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-11 20:10:18,999 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:10:18,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:10:18,999 INFO L82 PathProgramCache]: Analyzing trace with hash -969779638, now seen corresponding path program 8 times [2020-09-11 20:10:19,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:10:19,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929509278] [2020-09-11 20:10:19,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:10:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:10:20,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:10:20,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929509278] [2020-09-11 20:10:20,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:10:20,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-11 20:10:20,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149615700] [2020-09-11 20:10:20,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-11 20:10:20,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:10:20,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-11 20:10:20,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-11 20:10:20,049 INFO L87 Difference]: Start difference. First operand 96 states and 179 transitions. Second operand 14 states. [2020-09-11 20:10:21,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:10:21,363 INFO L93 Difference]: Finished difference Result 167 states and 302 transitions. [2020-09-11 20:10:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-11 20:10:21,363 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-09-11 20:10:21,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:10:21,365 INFO L225 Difference]: With dead ends: 167 [2020-09-11 20:10:21,365 INFO L226 Difference]: Without dead ends: 147 [2020-09-11 20:10:21,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-09-11 20:10:21,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-09-11 20:10:21,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 94. [2020-09-11 20:10:21,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-11 20:10:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 175 transitions. [2020-09-11 20:10:21,371 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 175 transitions. Word has length 18 [2020-09-11 20:10:21,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:10:21,371 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 175 transitions. [2020-09-11 20:10:21,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-11 20:10:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 175 transitions. [2020-09-11 20:10:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:10:21,372 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:10:21,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:10:21,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-11 20:10:21,372 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:10:21,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:10:21,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1049440908, now seen corresponding path program 3 times [2020-09-11 20:10:21,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:10:21,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240066248] [2020-09-11 20:10:21,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:10:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:10:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:10:22,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240066248] [2020-09-11 20:10:22,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:10:22,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-11 20:10:22,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439099051] [2020-09-11 20:10:22,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-11 20:10:22,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:10:22,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-11 20:10:22,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-11 20:10:22,091 INFO L87 Difference]: Start difference. First operand 94 states and 175 transitions. Second operand 11 states. [2020-09-11 20:10:22,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:10:22,787 INFO L93 Difference]: Finished difference Result 206 states and 364 transitions. [2020-09-11 20:10:22,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-11 20:10:22,787 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-09-11 20:10:22,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:10:22,791 INFO L225 Difference]: With dead ends: 206 [2020-09-11 20:10:22,791 INFO L226 Difference]: Without dead ends: 206 [2020-09-11 20:10:22,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2020-09-11 20:10:22,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-09-11 20:10:22,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 116. [2020-09-11 20:10:22,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-11 20:10:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 229 transitions. [2020-09-11 20:10:22,802 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 229 transitions. Word has length 18 [2020-09-11 20:10:22,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:10:22,802 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 229 transitions. [2020-09-11 20:10:22,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-11 20:10:22,803 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 229 transitions. [2020-09-11 20:10:22,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:10:22,803 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:10:22,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:10:22,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-11 20:10:22,804 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:10:22,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:10:22,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1049440926, now seen corresponding path program 9 times [2020-09-11 20:10:22,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:10:22,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869861055] [2020-09-11 20:10:22,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:10:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-11 20:10:22,867 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-11 20:10:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-11 20:10:22,932 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-11 20:10:22,999 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-11 20:10:23,001 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-11 20:10:23,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-11 20:10:23,003 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-09-11 20:10:23,023 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [392] [392] L1682-->L1739: Formula: (and (not (= ULTIMATE.start_ldv_assert_~expression_Out725516426 0)) (= ULTIMATE.start_ldv_assert_~expression_Out725516426 |ULTIMATE.start_ldv_assert_#in~expression_In725516426|)) InVars {ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In725516426|} OutVars{ULTIMATE.start_main_#t~mem40=|ULTIMATE.start_main_#t~mem40_Out725516426|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In725516426|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out725516426} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~mem40, ULTIMATE.start_ldv_assert_~expression] because there is no mapped edge [2020-09-11 20:10:23,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 08:10:23 BasicIcfg [2020-09-11 20:10:23,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 20:10:23,133 INFO L168 Benchmark]: Toolchain (without parser) took 34246.58 ms. Allocated memory was 140.0 MB in the beginning and 474.0 MB in the end (delta: 334.0 MB). Free memory was 99.8 MB in the beginning and 285.7 MB in the end (delta: -185.9 MB). Peak memory consumption was 148.1 MB. Max. memory is 7.1 GB. [2020-09-11 20:10:23,137 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-11 20:10:23,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1366.51 ms. Allocated memory was 140.0 MB in the beginning and 239.1 MB in the end (delta: 99.1 MB). Free memory was 99.0 MB in the beginning and 177.8 MB in the end (delta: -78.8 MB). Peak memory consumption was 76.4 MB. Max. memory is 7.1 GB. [2020-09-11 20:10:23,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.97 ms. Allocated memory is still 239.1 MB. Free memory was 177.8 MB in the beginning and 176.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-09-11 20:10:23,139 INFO L168 Benchmark]: Boogie Preprocessor took 62.00 ms. Allocated memory is still 239.1 MB. Free memory was 176.0 MB in the beginning and 172.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2020-09-11 20:10:23,140 INFO L168 Benchmark]: RCFGBuilder took 880.41 ms. Allocated memory is still 239.1 MB. Free memory was 172.5 MB in the beginning and 128.3 MB in the end (delta: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 7.1 GB. [2020-09-11 20:10:23,141 INFO L168 Benchmark]: TraceAbstraction took 31845.35 ms. Allocated memory was 239.1 MB in the beginning and 474.0 MB in the end (delta: 234.9 MB). Free memory was 126.5 MB in the beginning and 285.7 MB in the end (delta: -159.2 MB). Peak memory consumption was 75.7 MB. Max. memory is 7.1 GB. [2020-09-11 20:10:23,150 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1366.51 ms. Allocated memory was 140.0 MB in the beginning and 239.1 MB in the end (delta: 99.1 MB). Free memory was 99.0 MB in the beginning and 177.8 MB in the end (delta: -78.8 MB). Peak memory consumption was 76.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 81.97 ms. Allocated memory is still 239.1 MB. Free memory was 177.8 MB in the beginning and 176.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.00 ms. Allocated memory is still 239.1 MB. Free memory was 176.0 MB in the beginning and 172.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 880.41 ms. Allocated memory is still 239.1 MB. Free memory was 172.5 MB in the beginning and 128.3 MB in the end (delta: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31845.35 ms. Allocated memory was 239.1 MB in the beginning and 474.0 MB in the end (delta: 234.9 MB). Free memory was 126.5 MB in the beginning and 285.7 MB in the end (delta: -159.2 MB). Peak memory consumption was 75.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 6.2s, 129 ProgramPointsBefore, 34 ProgramPointsAfterwards, 131 TransitionsBefore, 32 TransitionsAfterwards, 2200 CoEnabledTransitionPairs, 7 FixpointIterations, 63 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 16 ConcurrentYvCompositions, 4 ChoiceCompositions, 1101 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2954 CheckedPairsTotal, 134 TotalNumberOfCompositions - CounterExampleResult [Line: 1682]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1683] 0 pthread_t t1,t2; [L1725] 0 return 0; [L1731] 0 int ret = my_drv_init(); [L1732] COND TRUE 0 ret==0 [L1733] 0 int probe_ret; [L1734] 0 struct my_data data; [L1704] 0 struct device *d = &data->dev; [L1706] 0 data->shared.a = 0 [L1707] 0 data->shared.b = 0 [L1708] 0 int res = __VERIFIER_nondet_int(); [L1709] COND FALSE 0 !(\read(res)) [L1711] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={6:24}, t1={5:0}, t2={7:0}] [L1696] 1 struct device *dev = (struct device*)arg; [L1697] 1 struct my_data *data; [L1698] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1698] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1699] 1 data->shared.a = 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1700] 1 data->shared.b VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1712] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1696] 2 struct device *dev = (struct device*)arg; [L1697] 2 struct my_data *data; [L1698] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1698] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1699] 2 data->shared.a = 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1700] EXPR 2 data->shared.b VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1700] 2 data->shared.b = data->shared.b + 1 [L1701] 2 return 0; [L1700] 1 data->shared.b = data->shared.b + 1 [L1701] 1 return 0; [L1713] 0 return 0; [L1735] 0 probe_ret = my_drv_probe(&data) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1736] COND TRUE 0 probe_ret==0 [L1719] 0 void *status; [L1720] 0 \read(t1) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1720] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1721] 0 \read(t2) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1721] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1738] 0 data.shared.a [L1739] 0 data.shared.b [L1682] COND TRUE 0 !expression [L1682] 0 __VERIFIER_error() VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 111 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.5s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.2s, HoareTripleCheckerStatistics: 269 SDtfs, 583 SDslu, 947 SDs, 0 SdLazy, 3861 SolverSat, 396 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 12.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 497 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 79189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 incorrect! Received shutdown request...