/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/pthreads/forkFork.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:32:30,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:32:30,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:32:30,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:32:30,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:32:30,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:32:30,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:32:30,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:32:30,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:32:30,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:32:30,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:32:30,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:32:30,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:32:30,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:32:30,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:32:30,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:32:30,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:32:30,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:32:30,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:32:30,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:32:30,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:32:30,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:32:30,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:32:30,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:32:30,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:32:30,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:32:30,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:32:30,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:32:30,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:32:30,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:32:30,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:32:30,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:32:30,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:32:30,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:32:30,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:32:30,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:32:30,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:32:30,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:32:30,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:32:30,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:32:30,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:32:30,555 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:32:30,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:32:30,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:32:30,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:32:30,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:32:30,609 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:32:30,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:32:30,609 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:32:30,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:32:30,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:32:30,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:32:30,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:32:30,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:32:30,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:32:30,613 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:32:30,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:32:30,614 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:32:30,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:32:30,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:32:30,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:32:30,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:32:30,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:32:30,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:32:30,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:32:30,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:32:30,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:32:30,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:32:30,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:32:30,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:32:30,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:32:30,617 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:32:30,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:32:30,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:32:30,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:32:30,961 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:32:30,964 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:32:30,965 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkFork.c [2020-10-16 11:32:31,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e5b5a90d/c8cba629cce34cdb89251035b6142a10/FLAG76aafe90b [2020-10-16 11:32:31,505 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:32:31,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/concurrent/pthreads/forkFork.c [2020-10-16 11:32:31,506 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-16 11:32:31,506 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-16 11:32:31,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e5b5a90d/c8cba629cce34cdb89251035b6142a10/FLAG76aafe90b [2020-10-16 11:32:31,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e5b5a90d/c8cba629cce34cdb89251035b6142a10 [2020-10-16 11:32:31,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:32:31,896 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:32:31,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:32:31,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:32:31,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:32:31,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:32:31" (1/1) ... [2020-10-16 11:32:31,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1749cf5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:31, skipping insertion in model container [2020-10-16 11:32:31,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:32:31" (1/1) ... [2020-10-16 11:32:31,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:32:31,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:32:32,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:32:32,292 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:32:32,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:32:32,326 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:32:32,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:32 WrapperNode [2020-10-16 11:32:32,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:32:32,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:32:32,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:32:32,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:32:32,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:32" (1/1) ... [2020-10-16 11:32:32,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:32" (1/1) ... [2020-10-16 11:32:32,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:32:32,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:32:32,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:32:32,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:32:32,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:32" (1/1) ... [2020-10-16 11:32:32,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:32" (1/1) ... [2020-10-16 11:32:32,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:32" (1/1) ... [2020-10-16 11:32:32,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:32" (1/1) ... [2020-10-16 11:32:32,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:32" (1/1) ... [2020-10-16 11:32:32,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:32" (1/1) ... [2020-10-16 11:32:32,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:32" (1/1) ... [2020-10-16 11:32:32,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:32:32,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:32:32,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:32:32,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:32:32,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:32:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-16 11:32:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:32:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2020-10-16 11:32:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2020-10-16 11:32:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-16 11:32:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-16 11:32:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:32:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:32:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 11:32:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 11:32:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-16 11:32:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:32:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:32:32,458 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:32:32,764 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:32:32,764 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-16 11:32:32,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:32:32 BoogieIcfgContainer [2020-10-16 11:32:32,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:32:32,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:32:32,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:32:32,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:32:32,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:32:31" (1/3) ... [2020-10-16 11:32:32,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50676421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:32:32, skipping insertion in model container [2020-10-16 11:32:32,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:32:32" (2/3) ... [2020-10-16 11:32:32,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50676421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:32:32, skipping insertion in model container [2020-10-16 11:32:32,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:32:32" (3/3) ... [2020-10-16 11:32:32,777 INFO L111 eAbstractionObserver]: Analyzing ICFG forkFork.c [2020-10-16 11:32:32,791 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:32:32,791 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:32:32,810 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 11:32:32,815 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:32:32,895 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,896 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,896 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,896 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,897 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,897 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,897 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,898 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,898 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,898 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,898 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,899 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,899 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,899 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,900 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,900 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,900 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,901 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,901 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,901 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,902 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,902 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,903 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,903 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,903 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,903 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,904 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,905 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,905 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,905 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,905 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,906 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,906 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,906 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,907 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,907 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,907 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,907 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,908 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,908 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,908 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,909 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,909 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,910 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,910 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,911 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,911 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,911 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,912 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,912 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,913 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,913 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,913 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,913 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,914 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,914 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,914 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,914 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,915 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,915 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,915 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,915 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,915 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,916 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,916 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,916 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,917 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,917 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,921 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,921 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,921 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,922 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,922 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,922 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,922 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,922 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,923 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,930 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,931 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,931 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,931 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,931 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,932 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,932 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,932 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,932 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,933 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,933 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,933 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,933 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,934 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,934 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,934 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,938 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,938 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,939 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,939 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,939 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,939 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,940 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,940 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,940 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:32:32,964 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-10-16 11:32:32,982 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 11:32:33,004 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:32:33,004 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:32:33,005 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:32:33,005 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:32:33,005 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:32:33,005 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:32:33,005 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:32:33,005 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:32:33,023 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:32:33,026 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 83 transitions, 194 flow [2020-10-16 11:32:33,029 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 83 transitions, 194 flow [2020-10-16 11:32:33,031 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 83 transitions, 194 flow [2020-10-16 11:32:33,087 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-16 11:32:33,088 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-16 11:32:33,093 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. [2020-10-16 11:32:33,095 INFO L117 LiptonReduction]: Number of co-enabled transitions 334 [2020-10-16 11:32:34,769 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-16 11:32:34,869 INFO L132 LiptonReduction]: Checked pairs total: 1127 [2020-10-16 11:32:34,870 INFO L134 LiptonReduction]: Total number of compositions: 63 [2020-10-16 11:32:34,877 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 24 transitions, 76 flow [2020-10-16 11:32:34,888 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 50 states. [2020-10-16 11:32:34,891 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-16 11:32:34,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 11:32:34,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:32:34,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 11:32:34,899 INFO L429 AbstractCegarLoop]: === Iteration 1 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 11:32:34,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:32:34,905 INFO L82 PathProgramCache]: Analyzing trace with hash 257386320, now seen corresponding path program 1 times [2020-10-16 11:32:34,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:32:34,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824582451] [2020-10-16 11:32:34,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:32:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:32:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:32:35,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824582451] [2020-10-16 11:32:35,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:32:35,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:32:35,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934098564] [2020-10-16 11:32:35,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:32:35,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:32:35,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:32:35,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:32:35,174 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 6 states. [2020-10-16 11:32:35,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:32:35,328 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2020-10-16 11:32:35,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:32:35,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-10-16 11:32:35,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:32:35,342 INFO L225 Difference]: With dead ends: 44 [2020-10-16 11:32:35,342 INFO L226 Difference]: Without dead ends: 41 [2020-10-16 11:32:35,344 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 [2020-10-16 11:32:35,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-16 11:32:35,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-16 11:32:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-16 11:32:35,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 69 transitions. [2020-10-16 11:32:35,384 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 69 transitions. Word has length 5 [2020-10-16 11:32:35,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:32:35,384 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 69 transitions. [2020-10-16 11:32:35,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:32:35,384 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 69 transitions. [2020-10-16 11:32:35,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:32:35,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:32:35,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:32:35,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:32:35,386 INFO L429 AbstractCegarLoop]: === Iteration 2 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 11:32:35,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:32:35,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1380238106, now seen corresponding path program 1 times [2020-10-16 11:32:35,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:32:35,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630993693] [2020-10-16 11:32:35,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:32:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:32:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:32:35,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630993693] [2020-10-16 11:32:35,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:32:35,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 11:32:35,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289541967] [2020-10-16 11:32:35,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 11:32:35,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:32:35,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 11:32:35,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:32:35,550 INFO L87 Difference]: Start difference. First operand 41 states and 69 transitions. Second operand 8 states. [2020-10-16 11:32:35,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:32:35,839 INFO L93 Difference]: Finished difference Result 51 states and 81 transitions. [2020-10-16 11:32:35,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 11:32:35,839 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-10-16 11:32:35,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:32:35,841 INFO L225 Difference]: With dead ends: 51 [2020-10-16 11:32:35,841 INFO L226 Difference]: Without dead ends: 51 [2020-10-16 11:32:35,842 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 [2020-10-16 11:32:35,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-16 11:32:35,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2020-10-16 11:32:35,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-16 11:32:35,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 75 transitions. [2020-10-16 11:32:35,851 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 75 transitions. Word has length 10 [2020-10-16 11:32:35,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:32:35,852 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 75 transitions. [2020-10-16 11:32:35,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 11:32:35,852 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 75 transitions. [2020-10-16 11:32:35,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:32:35,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:32:35,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:32:35,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:32:35,853 INFO L429 AbstractCegarLoop]: === Iteration 3 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 11:32:35,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:32:35,854 INFO L82 PathProgramCache]: Analyzing trace with hash -199570406, now seen corresponding path program 2 times [2020-10-16 11:32:35,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:32:35,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711996785] [2020-10-16 11:32:35,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:32:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:32:35,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:32:35,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711996785] [2020-10-16 11:32:35,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:32:35,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 11:32:35,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622327520] [2020-10-16 11:32:35,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:32:35,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:32:35,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:32:35,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:32:35,927 INFO L87 Difference]: Start difference. First operand 45 states and 75 transitions. Second operand 6 states. [2020-10-16 11:32:36,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:32:36,067 INFO L93 Difference]: Finished difference Result 50 states and 75 transitions. [2020-10-16 11:32:36,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:32:36,069 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-16 11:32:36,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:32:36,070 INFO L225 Difference]: With dead ends: 50 [2020-10-16 11:32:36,070 INFO L226 Difference]: Without dead ends: 50 [2020-10-16 11:32:36,071 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 [2020-10-16 11:32:36,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-16 11:32:36,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2020-10-16 11:32:36,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-16 11:32:36,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 58 transitions. [2020-10-16 11:32:36,077 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 58 transitions. Word has length 10 [2020-10-16 11:32:36,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:32:36,078 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 58 transitions. [2020-10-16 11:32:36,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:32:36,078 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 58 transitions. [2020-10-16 11:32:36,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:32:36,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:32:36,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:32:36,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:32:36,080 INFO L429 AbstractCegarLoop]: === Iteration 4 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 11:32:36,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:32:36,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1138692504, now seen corresponding path program 1 times [2020-10-16 11:32:36,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:32:36,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118769810] [2020-10-16 11:32:36,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:32:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:32:36,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:32:36,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118769810] [2020-10-16 11:32:36,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:32:36,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 11:32:36,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140567134] [2020-10-16 11:32:36,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 11:32:36,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:32:36,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 11:32:36,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-16 11:32:36,410 INFO L87 Difference]: Start difference. First operand 35 states and 58 transitions. Second operand 14 states. [2020-10-16 11:32:37,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:32:37,013 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2020-10-16 11:32:37,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-16 11:32:37,014 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-10-16 11:32:37,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:32:37,015 INFO L225 Difference]: With dead ends: 41 [2020-10-16 11:32:37,015 INFO L226 Difference]: Without dead ends: 33 [2020-10-16 11:32:37,016 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 [2020-10-16 11:32:37,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-16 11:32:37,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-16 11:32:37,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-16 11:32:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 54 transitions. [2020-10-16 11:32:37,021 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 54 transitions. Word has length 15 [2020-10-16 11:32:37,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:32:37,021 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 54 transitions. [2020-10-16 11:32:37,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 11:32:37,021 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 54 transitions. [2020-10-16 11:32:37,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:32:37,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:32:37,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:32:37,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:32:37,023 INFO L429 AbstractCegarLoop]: === Iteration 5 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 11:32:37,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:32:37,023 INFO L82 PathProgramCache]: Analyzing trace with hash -170034344, now seen corresponding path program 2 times [2020-10-16 11:32:37,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:32:37,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026752356] [2020-10-16 11:32:37,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:32:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:32:37,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:32:37,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026752356] [2020-10-16 11:32:37,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:32:37,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 11:32:37,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143503884] [2020-10-16 11:32:37,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 11:32:37,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:32:37,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 11:32:37,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:32:37,329 INFO L87 Difference]: Start difference. First operand 33 states and 54 transitions. Second operand 13 states. [2020-10-16 11:32:37,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:32:37,869 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. [2020-10-16 11:32:37,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 11:32:37,869 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-16 11:32:37,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:32:37,870 INFO L225 Difference]: With dead ends: 41 [2020-10-16 11:32:37,871 INFO L226 Difference]: Without dead ends: 32 [2020-10-16 11:32:37,871 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 [2020-10-16 11:32:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-16 11:32:37,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-16 11:32:37,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-16 11:32:37,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 52 transitions. [2020-10-16 11:32:37,876 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 52 transitions. Word has length 15 [2020-10-16 11:32:37,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:32:37,877 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 52 transitions. [2020-10-16 11:32:37,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 11:32:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 52 transitions. [2020-10-16 11:32:37,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:32:37,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:32:37,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:32:37,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:32:37,879 INFO L429 AbstractCegarLoop]: === Iteration 6 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 11:32:37,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:32:37,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1360401226, now seen corresponding path program 3 times [2020-10-16 11:32:37,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:32:37,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903880036] [2020-10-16 11:32:37,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:32:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:32:38,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:32:38,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903880036] [2020-10-16 11:32:38,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:32:38,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 11:32:38,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602252458] [2020-10-16 11:32:38,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 11:32:38,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:32:38,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 11:32:38,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:32:38,115 INFO L87 Difference]: Start difference. First operand 32 states and 52 transitions. Second operand 13 states. [2020-10-16 11:32:38,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:32:38,672 INFO L93 Difference]: Finished difference Result 42 states and 64 transitions. [2020-10-16 11:32:38,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 11:32:38,673 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-16 11:32:38,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:32:38,674 INFO L225 Difference]: With dead ends: 42 [2020-10-16 11:32:38,674 INFO L226 Difference]: Without dead ends: 31 [2020-10-16 11:32:38,675 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 [2020-10-16 11:32:38,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-16 11:32:38,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-16 11:32:38,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-16 11:32:38,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 49 transitions. [2020-10-16 11:32:38,679 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 49 transitions. Word has length 15 [2020-10-16 11:32:38,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:32:38,680 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 49 transitions. [2020-10-16 11:32:38,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 11:32:38,680 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2020-10-16 11:32:38,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:32:38,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:32:38,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:32:38,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:32:38,681 INFO L429 AbstractCegarLoop]: === Iteration 7 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 11:32:38,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:32:38,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1481937188, now seen corresponding path program 4 times [2020-10-16 11:32:38,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:32:38,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379884221] [2020-10-16 11:32:38,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:32:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:32:38,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:32:38,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379884221] [2020-10-16 11:32:38,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:32:38,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 11:32:38,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534101532] [2020-10-16 11:32:38,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 11:32:38,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:32:38,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 11:32:38,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:32:38,913 INFO L87 Difference]: Start difference. First operand 31 states and 49 transitions. Second operand 13 states. [2020-10-16 11:32:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:32:39,448 INFO L93 Difference]: Finished difference Result 45 states and 69 transitions. [2020-10-16 11:32:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 11:32:39,449 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-16 11:32:39,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:32:39,450 INFO L225 Difference]: With dead ends: 45 [2020-10-16 11:32:39,450 INFO L226 Difference]: Without dead ends: 29 [2020-10-16 11:32:39,451 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 [2020-10-16 11:32:39,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-16 11:32:39,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-16 11:32:39,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-16 11:32:39,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2020-10-16 11:32:39,455 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 15 [2020-10-16 11:32:39,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:32:39,456 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. [2020-10-16 11:32:39,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 11:32:39,456 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-10-16 11:32:39,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:32:39,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:32:39,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:32:39,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:32:39,457 INFO L429 AbstractCegarLoop]: === Iteration 8 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 11:32:39,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:32:39,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1803391854, now seen corresponding path program 5 times [2020-10-16 11:32:39,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:32:39,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013744889] [2020-10-16 11:32:39,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:32:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:32:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:32:39,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013744889] [2020-10-16 11:32:39,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:32:39,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 11:32:39,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517466504] [2020-10-16 11:32:39,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 11:32:39,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:32:39,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 11:32:39,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:32:39,672 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. Second operand 13 states. [2020-10-16 11:32:40,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:32:40,166 INFO L93 Difference]: Finished difference Result 47 states and 72 transitions. [2020-10-16 11:32:40,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 11:32:40,167 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-16 11:32:40,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:32:40,168 INFO L225 Difference]: With dead ends: 47 [2020-10-16 11:32:40,168 INFO L226 Difference]: Without dead ends: 27 [2020-10-16 11:32:40,169 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 [2020-10-16 11:32:40,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-16 11:32:40,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-16 11:32:40,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-16 11:32:40,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2020-10-16 11:32:40,173 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 40 transitions. Word has length 15 [2020-10-16 11:32:40,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:32:40,173 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 40 transitions. [2020-10-16 11:32:40,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 11:32:40,173 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2020-10-16 11:32:40,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:32:40,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:32:40,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:32:40,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 11:32:40,174 INFO L429 AbstractCegarLoop]: === Iteration 9 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 11:32:40,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:32:40,175 INFO L82 PathProgramCache]: Analyzing trace with hash -613115126, now seen corresponding path program 6 times [2020-10-16 11:32:40,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:32:40,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362320925] [2020-10-16 11:32:40,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:32:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:32:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:32:40,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362320925] [2020-10-16 11:32:40,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:32:40,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 11:32:40,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451515532] [2020-10-16 11:32:40,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 11:32:40,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:32:40,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 11:32:40,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:32:40,382 INFO L87 Difference]: Start difference. First operand 27 states and 40 transitions. Second operand 13 states. [2020-10-16 11:32:40,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:32:40,893 INFO L93 Difference]: Finished difference Result 47 states and 71 transitions. [2020-10-16 11:32:40,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 11:32:40,894 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-16 11:32:40,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:32:40,894 INFO L225 Difference]: With dead ends: 47 [2020-10-16 11:32:40,895 INFO L226 Difference]: Without dead ends: 26 [2020-10-16 11:32:40,895 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 [2020-10-16 11:32:40,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-16 11:32:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-16 11:32:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-16 11:32:40,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 38 transitions. [2020-10-16 11:32:40,899 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 38 transitions. Word has length 15 [2020-10-16 11:32:40,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:32:40,900 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 38 transitions. [2020-10-16 11:32:40,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 11:32:40,900 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2020-10-16 11:32:40,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:32:40,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:32:40,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:32:40,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 11:32:40,901 INFO L429 AbstractCegarLoop]: === Iteration 10 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 11:32:40,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:32:40,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1679512088, now seen corresponding path program 7 times [2020-10-16 11:32:40,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:32:40,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444740757] [2020-10-16 11:32:40,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:32:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:32:41,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:32:41,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444740757] [2020-10-16 11:32:41,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:32:41,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 11:32:41,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256879544] [2020-10-16 11:32:41,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 11:32:41,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:32:41,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 11:32:41,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:32:41,112 INFO L87 Difference]: Start difference. First operand 26 states and 38 transitions. Second operand 13 states. [2020-10-16 11:32:41,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:32:41,551 INFO L93 Difference]: Finished difference Result 25 states and 37 transitions. [2020-10-16 11:32:41,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 11:32:41,551 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2020-10-16 11:32:41,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:32:41,552 INFO L225 Difference]: With dead ends: 25 [2020-10-16 11:32:41,552 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:32:41,552 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 [2020-10-16 11:32:41,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:32:41,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:32:41,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:32:41,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:32:41,553 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-16 11:32:41,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:32:41,553 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:32:41,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 11:32:41,554 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:32:41,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:32:41,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 11:32:41,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:32:41 BasicIcfg [2020-10-16 11:32:41,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:32:41,560 INFO L168 Benchmark]: Toolchain (without parser) took 9664.54 ms. Allocated memory was 137.9 MB in the beginning and 322.4 MB in the end (delta: 184.5 MB). Free memory was 99.0 MB in the beginning and 177.5 MB in the end (delta: -78.5 MB). Peak memory consumption was 106.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:32:41,561 INFO L168 Benchmark]: CDTParser took 1.45 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 11:32:41,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.06 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 98.8 MB in the beginning and 176.2 MB in the end (delta: -77.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:32:41,563 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.83 ms. Allocated memory is still 199.8 MB. Free memory was 176.2 MB in the beginning and 174.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:32:41,563 INFO L168 Benchmark]: Boogie Preprocessor took 26.17 ms. Allocated memory is still 199.8 MB. Free memory was 174.8 MB in the beginning and 173.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:32:41,564 INFO L168 Benchmark]: RCFGBuilder took 376.40 ms. Allocated memory is still 199.8 MB. Free memory was 173.4 MB in the beginning and 150.9 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-16 11:32:41,565 INFO L168 Benchmark]: TraceAbstraction took 8789.29 ms. Allocated memory was 199.8 MB in the beginning and 322.4 MB in the end (delta: 122.7 MB). Free memory was 150.2 MB in the beginning and 177.5 MB in the end (delta: -27.3 MB). Peak memory consumption was 95.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:32:41,569 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 430.06 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 98.8 MB in the beginning and 176.2 MB in the end (delta: -77.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.83 ms. Allocated memory is still 199.8 MB. Free memory was 176.2 MB in the beginning and 174.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.17 ms. Allocated memory is still 199.8 MB. Free memory was 174.8 MB in the beginning and 173.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 376.40 ms. Allocated memory is still 199.8 MB. Free memory was 173.4 MB in the beginning and 150.9 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8789.29 ms. Allocated memory was 199.8 MB in the beginning and 322.4 MB in the end (delta: 122.7 MB). Free memory was 150.2 MB in the beginning and 177.5 MB in the end (delta: -27.3 MB). Peak memory consumption was 95.4 MB. Max. memory is 7.1 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: 1.8s, 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: 8.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 4.3s, 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, 3.5s 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, 1.7s 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...