/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/pthreads/forkFork.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 19:38:32,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 19:38:32,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 19:38:32,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 19:38:32,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 19:38:32,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 19:38:32,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 19:38:32,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 19:38:32,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 19:38:32,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 19:38:32,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 19:38:32,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 19:38:32,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 19:38:32,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 19:38:32,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 19:38:32,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 19:38:32,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 19:38:32,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 19:38:32,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 19:38:32,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 19:38:32,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 19:38:32,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 19:38:32,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 19:38:32,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 19:38:32,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 19:38:32,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 19:38:32,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 19:38:32,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 19:38:32,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 19:38:32,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 19:38:32,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 19:38:32,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 19:38:32,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 19:38:32,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 19:38:32,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 19:38:32,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 19:38:32,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 19:38:32,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 19:38:32,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 19:38:32,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 19:38:32,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 19:38:32,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 19:38:32,214 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 19:38:32,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 19:38:32,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 19:38:32,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 19:38:32,217 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 19:38:32,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 19:38:32,218 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 19:38:32,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 19:38:32,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 19:38:32,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 19:38:32,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 19:38:32,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 19:38:32,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 19:38:32,220 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 19:38:32,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 19:38:32,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 19:38:32,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 19:38:32,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 19:38:32,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 19:38:32,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 19:38:32,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 19:38:32,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 19:38:32,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 19:38:32,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 19:38:32,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 19:38:32,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 19:38:32,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 19:38:32,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 19:38:32,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 19:38:32,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 19:38:32,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 19:38:32,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 19:38:32,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 19:38:32,526 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 19:38:32,527 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 19:38:32,528 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkFork.c [2020-10-15 19:38:32,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69d37528b/572bd00dee8e4a89bbf0e9f3d2b71628/FLAGbcadb1e2f [2020-10-15 19:38:33,051 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 19:38:33,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkFork.c [2020-10-15 19:38:33,052 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-15 19:38:33,052 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-15 19:38:33,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69d37528b/572bd00dee8e4a89bbf0e9f3d2b71628/FLAGbcadb1e2f [2020-10-15 19:38:33,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69d37528b/572bd00dee8e4a89bbf0e9f3d2b71628 [2020-10-15 19:38:33,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 19:38:33,436 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 19:38:33,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 19:38:33,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 19:38:33,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 19:38:33,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:38:33" (1/1) ... [2020-10-15 19:38:33,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f8d034d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33, skipping insertion in model container [2020-10-15 19:38:33,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:38:33" (1/1) ... [2020-10-15 19:38:33,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 19:38:33,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 19:38:33,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 19:38:33,658 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 19:38:33,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 19:38:33,771 INFO L208 MainTranslator]: Completed translation [2020-10-15 19:38:33,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33 WrapperNode [2020-10-15 19:38:33,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 19:38:33,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 19:38:33,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 19:38:33,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 19:38:33,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33" (1/1) ... [2020-10-15 19:38:33,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33" (1/1) ... [2020-10-15 19:38:33,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 19:38:33,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 19:38:33,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 19:38:33,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 19:38:33,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33" (1/1) ... [2020-10-15 19:38:33,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33" (1/1) ... [2020-10-15 19:38:33,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33" (1/1) ... [2020-10-15 19:38:33,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33" (1/1) ... [2020-10-15 19:38:33,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33" (1/1) ... [2020-10-15 19:38:33,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33" (1/1) ... [2020-10-15 19:38:33,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33" (1/1) ... [2020-10-15 19:38:33,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 19:38:33,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 19:38:33,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 19:38:33,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 19:38:33,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 19:38:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 19:38:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 19:38:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2020-10-15 19:38:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2020-10-15 19:38:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-15 19:38:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-15 19:38:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 19:38:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 19:38:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 19:38:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 19:38:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 19:38:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 19:38:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 19:38:33,906 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 19:38:34,245 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 19:38:34,246 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-15 19:38:34,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:38:34 BoogieIcfgContainer [2020-10-15 19:38:34,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 19:38:34,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 19:38:34,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 19:38:34,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 19:38:34,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:38:33" (1/3) ... [2020-10-15 19:38:34,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752f21c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:38:34, skipping insertion in model container [2020-10-15 19:38:34,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:33" (2/3) ... [2020-10-15 19:38:34,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752f21c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:38:34, skipping insertion in model container [2020-10-15 19:38:34,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:38:34" (3/3) ... [2020-10-15 19:38:34,256 INFO L111 eAbstractionObserver]: Analyzing ICFG forkFork.c [2020-10-15 19:38:34,268 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 19:38:34,268 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 19:38:34,276 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-15 19:38:34,277 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 19:38:34,312 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,313 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,313 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,313 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,314 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,314 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,314 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,314 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,314 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,315 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,315 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,315 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,315 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,316 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,316 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,316 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,316 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,317 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,317 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,317 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,317 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,317 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,318 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,319 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,319 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,319 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,319 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,320 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,320 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,321 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,321 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,321 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,321 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,322 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,322 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,322 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,322 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,323 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,323 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,323 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,323 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,324 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,324 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,325 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,325 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,326 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,326 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,326 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,326 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,327 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,327 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,327 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,328 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,328 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,328 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,328 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,329 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,329 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,329 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,329 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,330 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,330 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,330 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,330 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,330 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,331 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,331 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,331 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,342 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,342 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,342 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,342 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,344 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,344 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,345 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,345 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,345 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,361 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,362 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,362 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,362 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,362 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,363 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,363 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,363 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,363 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,363 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,364 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,364 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,364 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,364 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,365 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,365 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,377 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,378 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,378 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,378 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,378 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,379 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,379 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,379 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,379 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 19:38:34,423 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 19:38:34,446 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 19:38:34,453 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 19:38:34,454 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 19:38:34,454 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 19:38:34,454 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 19:38:34,454 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 19:38:34,454 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 19:38:34,454 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 19:38:34,477 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 19:38:34,479 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 83 transitions, 194 flow [2020-10-15 19:38:34,482 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 83 transitions, 194 flow [2020-10-15 19:38:34,484 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 83 transitions, 194 flow [2020-10-15 19:38:34,530 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-15 19:38:34,530 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-15 19:38:34,535 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 89 events. 2/89 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 98. Up to 5 conditions per place. [2020-10-15 19:38:34,538 INFO L117 LiptonReduction]: Number of co-enabled transitions 334 [2020-10-15 19:38:36,139 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-15 19:38:36,244 INFO L132 LiptonReduction]: Checked pairs total: 1127 [2020-10-15 19:38:36,245 INFO L134 LiptonReduction]: Total number of compositions: 63 [2020-10-15 19:38:36,252 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 24 transitions, 76 flow [2020-10-15 19:38:36,262 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 50 states. [2020-10-15 19:38:36,264 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-15 19:38:36,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-15 19:38:36,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 19:38:36,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-15 19:38:36,272 INFO L429 AbstractCegarLoop]: === Iteration 1 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-15 19:38:36,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 19:38:36,278 INFO L82 PathProgramCache]: Analyzing trace with hash 257386320, now seen corresponding path program 1 times [2020-10-15 19:38:36,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 19:38:36,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977800586] [2020-10-15 19:38:36,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 19:38:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 19:38:36,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 19:38:36,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977800586] [2020-10-15 19:38:36,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 19:38:36,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 19:38:36,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919923272] [2020-10-15 19:38:36,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 19:38:36,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 19:38:36,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 19:38:36,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 19:38:36,567 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 6 states. [2020-10-15 19:38:36,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 19:38:36,717 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2020-10-15 19:38:36,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 19:38:36,719 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-10-15 19:38:36,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 19:38:36,727 INFO L225 Difference]: With dead ends: 44 [2020-10-15 19:38:36,728 INFO L226 Difference]: Without dead ends: 41 [2020-10-15 19:38:36,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 19:38:36,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-15 19:38:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-15 19:38:36,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-15 19:38:36,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 69 transitions. [2020-10-15 19:38:36,764 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 69 transitions. Word has length 5 [2020-10-15 19:38:36,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 19:38:36,764 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 69 transitions. [2020-10-15 19:38:36,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 19:38:36,764 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 69 transitions. [2020-10-15 19:38:36,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 19:38:36,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 19:38:36,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 19:38:36,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 19:38:36,766 INFO L429 AbstractCegarLoop]: === Iteration 2 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-15 19:38:36,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 19:38:36,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1380238106, now seen corresponding path program 1 times [2020-10-15 19:38:36,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 19:38:36,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005426741] [2020-10-15 19:38:36,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 19:38:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 19:38:36,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 19:38:36,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005426741] [2020-10-15 19:38:36,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 19:38:36,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 19:38:36,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534213169] [2020-10-15 19:38:36,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 19:38:36,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 19:38:36,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 19:38:36,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 19:38:36,967 INFO L87 Difference]: Start difference. First operand 41 states and 69 transitions. Second operand 8 states. [2020-10-15 19:38:37,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 19:38:37,194 INFO L93 Difference]: Finished difference Result 51 states and 81 transitions. [2020-10-15 19:38:37,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 19:38:37,194 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-10-15 19:38:37,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 19:38:37,196 INFO L225 Difference]: With dead ends: 51 [2020-10-15 19:38:37,196 INFO L226 Difference]: Without dead ends: 51 [2020-10-15 19:38:37,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-15 19:38:37,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-15 19:38:37,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2020-10-15 19:38:37,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-15 19:38:37,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 75 transitions. [2020-10-15 19:38:37,205 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 75 transitions. Word has length 10 [2020-10-15 19:38:37,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 19:38:37,206 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 75 transitions. [2020-10-15 19:38:37,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 19:38:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 75 transitions. [2020-10-15 19:38:37,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 19:38:37,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 19:38:37,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 19:38:37,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 19:38:37,208 INFO L429 AbstractCegarLoop]: === Iteration 3 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-15 19:38:37,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 19:38:37,208 INFO L82 PathProgramCache]: Analyzing trace with hash -199570406, now seen corresponding path program 2 times [2020-10-15 19:38:37,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 19:38:37,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652251730] [2020-10-15 19:38:37,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 19:38:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 19:38:37,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 19:38:37,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652251730] [2020-10-15 19:38:37,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 19:38:37,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 19:38:37,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73983013] [2020-10-15 19:38:37,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 19:38:37,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 19:38:37,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 19:38:37,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 19:38:37,300 INFO L87 Difference]: Start difference. First operand 45 states and 75 transitions. Second operand 6 states. [2020-10-15 19:38:37,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 19:38:37,440 INFO L93 Difference]: Finished difference Result 50 states and 75 transitions. [2020-10-15 19:38:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 19:38:37,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-15 19:38:37,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 19:38:37,449 INFO L225 Difference]: With dead ends: 50 [2020-10-15 19:38:37,449 INFO L226 Difference]: Without dead ends: 50 [2020-10-15 19:38:37,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 19:38:37,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-15 19:38:37,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2020-10-15 19:38:37,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-15 19:38:37,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 58 transitions. [2020-10-15 19:38:37,459 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 58 transitions. Word has length 10 [2020-10-15 19:38:37,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 19:38:37,459 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 58 transitions. [2020-10-15 19:38:37,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 19:38:37,459 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 58 transitions. [2020-10-15 19:38:37,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 19:38:37,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 19:38:37,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 19:38:37,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 19:38:37,464 INFO L429 AbstractCegarLoop]: === Iteration 4 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-15 19:38:37,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 19:38:37,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1138692504, now seen corresponding path program 1 times [2020-10-15 19:38:37,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 19:38:37,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893343311] [2020-10-15 19:38:37,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 19:38:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 19:38:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 19:38:37,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893343311] [2020-10-15 19:38:37,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 19:38:37,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 19:38:37,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609959633] [2020-10-15 19:38:37,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 19:38:37,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 19:38:37,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 19:38:37,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-15 19:38:37,797 INFO L87 Difference]: Start difference. First operand 35 states and 58 transitions. Second operand 14 states. [2020-10-15 19:38:38,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 19:38:38,420 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2020-10-15 19:38:38,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 19:38:38,422 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-10-15 19:38:38,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 19:38:38,424 INFO L225 Difference]: With dead ends: 41 [2020-10-15 19:38:38,424 INFO L226 Difference]: Without dead ends: 33 [2020-10-15 19:38:38,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2020-10-15 19:38:38,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-15 19:38:38,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-15 19:38:38,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-15 19:38:38,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 54 transitions. [2020-10-15 19:38:38,433 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 54 transitions. Word has length 15 [2020-10-15 19:38:38,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 19:38:38,434 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 54 transitions. [2020-10-15 19:38:38,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 19:38:38,434 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 54 transitions. [2020-10-15 19:38:38,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 19:38:38,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 19:38:38,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 19:38:38,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 19:38:38,436 INFO L429 AbstractCegarLoop]: === Iteration 5 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-15 19:38:38,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 19:38:38,436 INFO L82 PathProgramCache]: Analyzing trace with hash -170034344, now seen corresponding path program 2 times [2020-10-15 19:38:38,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 19:38:38,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608748873] [2020-10-15 19:38:38,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 19:38:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 19:38:38,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 19:38:38,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608748873] [2020-10-15 19:38:38,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 19:38:38,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 19:38:38,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856454800] [2020-10-15 19:38:38,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 19:38:38,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 19:38:38,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 19:38:38,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-15 19:38:38,655 INFO L87 Difference]: Start difference. First operand 33 states and 54 transitions. Second operand 13 states. [2020-10-15 19:38:39,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 19:38:39,211 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. [2020-10-15 19:38:39,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 19:38:39,212 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-15 19:38:39,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 19:38:39,213 INFO L225 Difference]: With dead ends: 41 [2020-10-15 19:38:39,213 INFO L226 Difference]: Without dead ends: 32 [2020-10-15 19:38:39,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2020-10-15 19:38:39,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-15 19:38:39,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-15 19:38:39,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-15 19:38:39,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 52 transitions. [2020-10-15 19:38:39,218 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 52 transitions. Word has length 15 [2020-10-15 19:38:39,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 19:38:39,219 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 52 transitions. [2020-10-15 19:38:39,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 19:38:39,219 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 52 transitions. [2020-10-15 19:38:39,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 19:38:39,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 19:38:39,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 19:38:39,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 19:38:39,220 INFO L429 AbstractCegarLoop]: === Iteration 6 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-15 19:38:39,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 19:38:39,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1360401226, now seen corresponding path program 3 times [2020-10-15 19:38:39,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 19:38:39,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656826478] [2020-10-15 19:38:39,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 19:38:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 19:38:39,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 19:38:39,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656826478] [2020-10-15 19:38:39,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 19:38:39,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 19:38:39,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763568754] [2020-10-15 19:38:39,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 19:38:39,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 19:38:39,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 19:38:39,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-15 19:38:39,437 INFO L87 Difference]: Start difference. First operand 32 states and 52 transitions. Second operand 13 states. [2020-10-15 19:38:40,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 19:38:40,010 INFO L93 Difference]: Finished difference Result 42 states and 64 transitions. [2020-10-15 19:38:40,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 19:38:40,015 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-15 19:38:40,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 19:38:40,016 INFO L225 Difference]: With dead ends: 42 [2020-10-15 19:38:40,016 INFO L226 Difference]: Without dead ends: 31 [2020-10-15 19:38:40,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2020-10-15 19:38:40,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-15 19:38:40,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-15 19:38:40,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-15 19:38:40,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 49 transitions. [2020-10-15 19:38:40,020 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 49 transitions. Word has length 15 [2020-10-15 19:38:40,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 19:38:40,021 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 49 transitions. [2020-10-15 19:38:40,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 19:38:40,021 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2020-10-15 19:38:40,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 19:38:40,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 19:38:40,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 19:38:40,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 19:38:40,022 INFO L429 AbstractCegarLoop]: === Iteration 7 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-15 19:38:40,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 19:38:40,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1481937188, now seen corresponding path program 4 times [2020-10-15 19:38:40,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 19:38:40,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233228287] [2020-10-15 19:38:40,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 19:38:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 19:38:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 19:38:40,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233228287] [2020-10-15 19:38:40,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 19:38:40,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 19:38:40,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143683121] [2020-10-15 19:38:40,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 19:38:40,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 19:38:40,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 19:38:40,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-15 19:38:40,244 INFO L87 Difference]: Start difference. First operand 31 states and 49 transitions. Second operand 13 states. [2020-10-15 19:38:40,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 19:38:40,734 INFO L93 Difference]: Finished difference Result 45 states and 69 transitions. [2020-10-15 19:38:40,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 19:38:40,735 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-15 19:38:40,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 19:38:40,736 INFO L225 Difference]: With dead ends: 45 [2020-10-15 19:38:40,736 INFO L226 Difference]: Without dead ends: 29 [2020-10-15 19:38:40,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2020-10-15 19:38:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-15 19:38:40,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-15 19:38:40,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-15 19:38:40,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2020-10-15 19:38:40,741 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 15 [2020-10-15 19:38:40,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 19:38:40,742 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. [2020-10-15 19:38:40,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 19:38:40,742 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-10-15 19:38:40,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 19:38:40,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 19:38:40,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 19:38:40,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 19:38:40,743 INFO L429 AbstractCegarLoop]: === Iteration 8 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-15 19:38:40,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 19:38:40,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1803391854, now seen corresponding path program 5 times [2020-10-15 19:38:40,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 19:38:40,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968292654] [2020-10-15 19:38:40,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 19:38:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 19:38:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 19:38:40,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968292654] [2020-10-15 19:38:40,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 19:38:40,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 19:38:40,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270226196] [2020-10-15 19:38:40,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 19:38:40,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 19:38:40,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 19:38:40,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-15 19:38:40,943 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. Second operand 13 states. [2020-10-15 19:38:41,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 19:38:41,445 INFO L93 Difference]: Finished difference Result 47 states and 72 transitions. [2020-10-15 19:38:41,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 19:38:41,446 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-15 19:38:41,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 19:38:41,447 INFO L225 Difference]: With dead ends: 47 [2020-10-15 19:38:41,447 INFO L226 Difference]: Without dead ends: 27 [2020-10-15 19:38:41,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2020-10-15 19:38:41,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-15 19:38:41,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-15 19:38:41,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-15 19:38:41,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2020-10-15 19:38:41,451 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 40 transitions. Word has length 15 [2020-10-15 19:38:41,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 19:38:41,452 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 40 transitions. [2020-10-15 19:38:41,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 19:38:41,452 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2020-10-15 19:38:41,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 19:38:41,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 19:38:41,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 19:38:41,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 19:38:41,453 INFO L429 AbstractCegarLoop]: === Iteration 9 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-15 19:38:41,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 19:38:41,454 INFO L82 PathProgramCache]: Analyzing trace with hash -613115126, now seen corresponding path program 6 times [2020-10-15 19:38:41,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 19:38:41,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383999250] [2020-10-15 19:38:41,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 19:38:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 19:38:41,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 19:38:41,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383999250] [2020-10-15 19:38:41,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 19:38:41,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 19:38:41,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940749745] [2020-10-15 19:38:41,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 19:38:41,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 19:38:41,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 19:38:41,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-15 19:38:41,652 INFO L87 Difference]: Start difference. First operand 27 states and 40 transitions. Second operand 13 states. [2020-10-15 19:38:42,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 19:38:42,116 INFO L93 Difference]: Finished difference Result 47 states and 71 transitions. [2020-10-15 19:38:42,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 19:38:42,116 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-15 19:38:42,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 19:38:42,117 INFO L225 Difference]: With dead ends: 47 [2020-10-15 19:38:42,118 INFO L226 Difference]: Without dead ends: 26 [2020-10-15 19:38:42,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2020-10-15 19:38:42,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-15 19:38:42,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-15 19:38:42,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-15 19:38:42,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 38 transitions. [2020-10-15 19:38:42,122 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 38 transitions. Word has length 15 [2020-10-15 19:38:42,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 19:38:42,122 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 38 transitions. [2020-10-15 19:38:42,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 19:38:42,122 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2020-10-15 19:38:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 19:38:42,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 19:38:42,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 19:38:42,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 19:38:42,123 INFO L429 AbstractCegarLoop]: === Iteration 10 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-15 19:38:42,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 19:38:42,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1679512088, now seen corresponding path program 7 times [2020-10-15 19:38:42,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 19:38:42,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571683785] [2020-10-15 19:38:42,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 19:38:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 19:38:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 19:38:42,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571683785] [2020-10-15 19:38:42,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 19:38:42,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 19:38:42,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344815952] [2020-10-15 19:38:42,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 19:38:42,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 19:38:42,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 19:38:42,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-10-15 19:38:42,313 INFO L87 Difference]: Start difference. First operand 26 states and 38 transitions. Second operand 13 states. [2020-10-15 19:38:42,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 19:38:42,769 INFO L93 Difference]: Finished difference Result 25 states and 37 transitions. [2020-10-15 19:38:42,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 19:38:42,770 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-15 19:38:42,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 19:38:42,770 INFO L225 Difference]: With dead ends: 25 [2020-10-15 19:38:42,770 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 19:38:42,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2020-10-15 19:38:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 19:38:42,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 19:38:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 19:38:42,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 19:38:42,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-15 19:38:42,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 19:38:42,772 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 19:38:42,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 19:38:42,772 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 19:38:42,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 19:38:42,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 19:38:42,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:38:42 BasicIcfg [2020-10-15 19:38:42,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 19:38:42,778 INFO L168 Benchmark]: Toolchain (without parser) took 9341.98 ms. Allocated memory was 252.2 MB in the beginning and 464.0 MB in the end (delta: 211.8 MB). Free memory was 207.3 MB in the beginning and 424.6 MB in the end (delta: -217.3 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 19:38:42,778 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 19:38:42,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.02 ms. Allocated memory was 252.2 MB in the beginning and 318.2 MB in the end (delta: 66.1 MB). Free memory was 207.3 MB in the beginning and 293.3 MB in the end (delta: -85.9 MB). Peak memory consumption was 27.6 MB. Max. memory is 14.2 GB. [2020-10-15 19:38:42,780 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.95 ms. Allocated memory is still 318.2 MB. Free memory is still 293.3 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 19:38:42,780 INFO L168 Benchmark]: Boogie Preprocessor took 26.28 ms. Allocated memory is still 318.2 MB. Free memory was 293.3 MB in the beginning and 289.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.2 GB. [2020-10-15 19:38:42,781 INFO L168 Benchmark]: RCFGBuilder took 412.73 ms. Allocated memory is still 318.2 MB. Free memory was 289.5 MB in the beginning and 266.7 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.2 GB. [2020-10-15 19:38:42,782 INFO L168 Benchmark]: TraceAbstraction took 8527.09 ms. Allocated memory was 318.2 MB in the beginning and 464.0 MB in the end (delta: 145.8 MB). Free memory was 266.7 MB in the beginning and 424.6 MB in the end (delta: -157.9 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 19:38:42,785 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 335.02 ms. Allocated memory was 252.2 MB in the beginning and 318.2 MB in the end (delta: 66.1 MB). Free memory was 207.3 MB in the beginning and 293.3 MB in the end (delta: -85.9 MB). Peak memory consumption was 27.6 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 35.95 ms. Allocated memory is still 318.2 MB. Free memory is still 293.3 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.28 ms. Allocated memory is still 318.2 MB. Free memory was 293.3 MB in the beginning and 289.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.2 GB. * RCFGBuilder took 412.73 ms. Allocated memory is still 318.2 MB. Free memory was 289.5 MB in the beginning and 266.7 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 8527.09 ms. Allocated memory was 318.2 MB in the beginning and 464.0 MB in the end (delta: 145.8 MB). Free memory was 266.7 MB in the beginning and 424.6 MB in the end (delta: -157.9 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 230 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 23 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 32 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 89 PlacesBefore, 28 PlacesAfterwards, 83 TransitionsBefore, 24 TransitionsAfterwards, 334 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 63 TotalNumberOfCompositions, 1127 MoverChecksTotal - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 69 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 83 SDtfs, 381 SDslu, 125 SDs, 0 SdLazy, 1725 SolverSat, 177 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 28171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...