/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 18:42:53,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 18:42:53,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 18:42:53,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-12 18:42:53,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-12 18:42:53,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-12 18:42:53,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-12 18:42:53,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-12 18:42:53,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-12 18:42:53,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-12 18:42:53,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-12 18:42:53,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-12 18:42:53,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-12 18:42:53,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-12 18:42:53,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-12 18:42:53,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-12 18:42:53,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-12 18:42:53,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-12 18:42:53,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-12 18:42:53,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-12 18:42:53,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-12 18:42:53,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-12 18:42:53,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-12 18:42:53,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-12 18:42:53,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-12 18:42:53,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-12 18:42:53,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-12 18:42:53,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-12 18:42:53,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-12 18:42:53,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-12 18:42:53,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-12 18:42:53,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-12 18:42:53,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-12 18:42:53,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-12 18:42:53,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-12 18:42:53,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-12 18:42:53,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-12 18:42:53,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-12 18:42:53,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 18:42:53,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 18:42:53,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 18:42:53,484 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-12 18:42:53,517 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 18:42:53,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 18:42:53,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 18:42:53,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 18:42:53,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 18:42:53,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 18:42:53,520 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 18:42:53,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 18:42:53,521 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 18:42:53,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 18:42:53,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 18:42:53,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 18:42:53,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 18:42:53,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 18:42:53,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 18:42:53,523 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 18:42:53,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 18:42:53,523 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 18:42:53,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 18:42:53,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 18:42:53,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 18:42:53,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 18:42:53,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 18:42:53,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 18:42:53,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 18:42:53,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 18:42:53,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 18:42:53,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 18:42:53,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 18:42:53,525 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 18:42:53,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 18:42:53,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 18:42:53,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 18:42:53,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 18:42:53,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 18:42:53,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 18:42:53,867 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 18:42:53,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c [2021-06-12 18:42:53,920 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b339bc506/9fd5475b1eb547a0a060c97cea8b1b27/FLAG4421ccf9a [2021-06-12 18:42:54,354 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 18:42:54,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c [2021-06-12 18:42:54,355 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-12 18:42:54,355 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-12 18:42:54,355 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-12 18:42:54,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b339bc506/9fd5475b1eb547a0a060c97cea8b1b27/FLAG4421ccf9a [2021-06-12 18:42:54,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b339bc506/9fd5475b1eb547a0a060c97cea8b1b27 [2021-06-12 18:42:54,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 18:42:54,908 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 18:42:54,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 18:42:54,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 18:42:54,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 18:42:54,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 06:42:54" (1/1) ... [2021-06-12 18:42:54,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31754dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:54, skipping insertion in model container [2021-06-12 18:42:54,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 06:42:54" (1/1) ... [2021-06-12 18:42:54,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 18:42:54,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 18:42:55,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 18:42:55,089 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 18:42:55,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 18:42:55,111 INFO L208 MainTranslator]: Completed translation [2021-06-12 18:42:55,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:55 WrapperNode [2021-06-12 18:42:55,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 18:42:55,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 18:42:55,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 18:42:55,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 18:42:55,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:55" (1/1) ... [2021-06-12 18:42:55,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:55" (1/1) ... [2021-06-12 18:42:55,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 18:42:55,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 18:42:55,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 18:42:55,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 18:42:55,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:55" (1/1) ... [2021-06-12 18:42:55,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:55" (1/1) ... [2021-06-12 18:42:55,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:55" (1/1) ... [2021-06-12 18:42:55,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:55" (1/1) ... [2021-06-12 18:42:55,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:55" (1/1) ... [2021-06-12 18:42:55,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:55" (1/1) ... [2021-06-12 18:42:55,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:55" (1/1) ... [2021-06-12 18:42:55,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 18:42:55,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 18:42:55,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 18:42:55,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 18:42:55,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 18:42:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-06-12 18:42:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 18:42:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-06-12 18:42:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-12 18:42:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-12 18:42:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 18:42:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 18:42:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 18:42:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-12 18:42:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-12 18:42:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 18:42:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 18:42:55,225 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 18:42:55,603 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 18:42:55,603 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-12 18:42:55,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 06:42:55 BoogieIcfgContainer [2021-06-12 18:42:55,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 18:42:55,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 18:42:55,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 18:42:55,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 18:42:55,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 06:42:54" (1/3) ... [2021-06-12 18:42:55,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f591c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 06:42:55, skipping insertion in model container [2021-06-12 18:42:55,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:42:55" (2/3) ... [2021-06-12 18:42:55,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f591c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 06:42:55, skipping insertion in model container [2021-06-12 18:42:55,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 06:42:55" (3/3) ... [2021-06-12 18:42:55,612 INFO L111 eAbstractionObserver]: Analyzing ICFG joinMultipleReturnValues.c [2021-06-12 18:42:55,617 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 18:42:55,617 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 18:42:55,618 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-12 18:42:55,618 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 18:42:55,651 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,651 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,651 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,651 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,651 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,651 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,652 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,652 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,652 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,652 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,652 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,652 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,652 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,653 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,653 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,653 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,654 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,654 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,655 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,655 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,655 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,655 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,655 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,655 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,655 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,656 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,656 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,656 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,656 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,656 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,656 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,656 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,657 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,657 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,657 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,657 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,658 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,658 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,658 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,659 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,659 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,659 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,659 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,659 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,659 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,659 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,660 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,660 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,660 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,660 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,660 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,661 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,662 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,662 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,662 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,662 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,662 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,662 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,662 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,663 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,663 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,663 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,663 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,663 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,663 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,663 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,663 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,664 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,664 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,664 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,664 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,667 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,667 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,667 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,668 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,668 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,671 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,671 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,671 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,671 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,671 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,672 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,672 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,672 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,672 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,672 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,672 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,673 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:42:55,687 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-12 18:42:55,705 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-12 18:42:55,735 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 18:42:55,735 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 18:42:55,735 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 18:42:55,735 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 18:42:55,735 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 18:42:55,735 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 18:42:55,735 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 18:42:55,736 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 18:42:55,746 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 61 transitions, 130 flow [2021-06-12 18:42:55,764 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 108 states, 105 states have (on average 1.5142857142857142) internal successors, (159), 107 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:42:55,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 105 states have (on average 1.5142857142857142) internal successors, (159), 107 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:42:55,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-12 18:42:55,779 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:42:55,780 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 18:42:55,780 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:42:55,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:42:55,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1586219045, now seen corresponding path program 1 times [2021-06-12 18:42:55,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:42:55,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570510403] [2021-06-12 18:42:55,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:42:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:42:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:42:56,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:42:56,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570510403] [2021-06-12 18:42:56,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570510403] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:42:56,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:42:56,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 18:42:56,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355717463] [2021-06-12 18:42:56,222 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 18:42:56,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:42:56,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 18:42:56,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-06-12 18:42:56,239 INFO L87 Difference]: Start difference. First operand has 108 states, 105 states have (on average 1.5142857142857142) internal successors, (159), 107 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:42:56,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:42:56,558 INFO L93 Difference]: Finished difference Result 96 states and 134 transitions. [2021-06-12 18:42:56,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 18:42:56,560 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-06-12 18:42:56,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:42:56,567 INFO L225 Difference]: With dead ends: 96 [2021-06-12 18:42:56,567 INFO L226 Difference]: Without dead ends: 86 [2021-06-12 18:42:56,568 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 272.6ms TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-06-12 18:42:56,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-06-12 18:42:56,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-06-12 18:42:56,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 1.4761904761904763) internal successors, (124), 85 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:42:56,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2021-06-12 18:42:56,609 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 42 [2021-06-12 18:42:56,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:42:56,609 INFO L482 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2021-06-12 18:42:56,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:42:56,610 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2021-06-12 18:42:56,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-06-12 18:42:56,613 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:42:56,614 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 18:42:56,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 18:42:56,614 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:42:56,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:42:56,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1350142531, now seen corresponding path program 1 times [2021-06-12 18:42:56,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:42:56,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517736189] [2021-06-12 18:42:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:42:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:42:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:42:56,991 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:42:56,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517736189] [2021-06-12 18:42:56,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517736189] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:42:56,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:42:56,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 18:42:56,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974358835] [2021-06-12 18:42:56,995 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 18:42:56,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:42:56,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 18:42:56,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2021-06-12 18:42:56,996 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 19 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 19 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:42:57,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:42:57,859 INFO L93 Difference]: Finished difference Result 85 states and 123 transitions. [2021-06-12 18:42:57,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-12 18:42:57,859 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 19 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-06-12 18:42:57,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:42:57,860 INFO L225 Difference]: With dead ends: 85 [2021-06-12 18:42:57,861 INFO L226 Difference]: Without dead ends: 85 [2021-06-12 18:42:57,862 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 805.2ms TimeCoverageRelationStatistics Valid=308, Invalid=1252, Unknown=0, NotChecked=0, Total=1560 [2021-06-12 18:42:57,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-06-12 18:42:57,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-06-12 18:42:57,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 84 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:42:57,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2021-06-12 18:42:57,869 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 123 transitions. Word has length 44 [2021-06-12 18:42:57,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:42:57,869 INFO L482 AbstractCegarLoop]: Abstraction has 85 states and 123 transitions. [2021-06-12 18:42:57,870 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 19 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:42:57,870 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 123 transitions. [2021-06-12 18:42:57,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-12 18:42:57,871 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:42:57,871 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 18:42:57,871 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 18:42:57,871 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:42:57,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:42:57,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1095254368, now seen corresponding path program 1 times [2021-06-12 18:42:57,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:42:57,872 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297899079] [2021-06-12 18:42:57,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:42:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:42:58,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:42:58,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:42:58,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297899079] [2021-06-12 18:42:58,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297899079] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:42:58,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:42:58,091 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-12 18:42:58,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096348257] [2021-06-12 18:42:58,091 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-12 18:42:58,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:42:58,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-12 18:42:58,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-06-12 18:42:58,092 INFO L87 Difference]: Start difference. First operand 85 states and 123 transitions. Second operand has 13 states, 12 states have (on average 3.75) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:42:58,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:42:58,615 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2021-06-12 18:42:58,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-12 18:42:58,616 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-12 18:42:58,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:42:58,616 INFO L225 Difference]: With dead ends: 84 [2021-06-12 18:42:58,616 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 18:42:58,617 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 530.4ms TimeCoverageRelationStatistics Valid=186, Invalid=464, Unknown=0, NotChecked=0, Total=650 [2021-06-12 18:42:58,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 18:42:58,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 18:42:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:42:58,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 18:42:58,617 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2021-06-12 18:42:58,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:42:58,617 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 18:42:58,617 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:42:58,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 18:42:58,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 18:42:58,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 18:42:58,620 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 18:42:58,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 06:42:58 BasicIcfg [2021-06-12 18:42:58,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 18:42:58,622 INFO L168 Benchmark]: Toolchain (without parser) took 3714.62 ms. Allocated memory was 215.0 MB in the beginning and 276.8 MB in the end (delta: 61.9 MB). Free memory was 177.0 MB in the beginning and 252.7 MB in the end (delta: -75.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 18:42:58,623 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 215.0 MB. Free memory was 196.1 MB in the beginning and 196.0 MB in the end (delta: 86.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 18:42:58,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.07 ms. Allocated memory is still 215.0 MB. Free memory was 176.9 MB in the beginning and 196.3 MB in the end (delta: -19.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 8.0 GB. [2021-06-12 18:42:58,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.62 ms. Allocated memory is still 215.0 MB. Free memory was 196.3 MB in the beginning and 194.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 18:42:58,624 INFO L168 Benchmark]: Boogie Preprocessor took 23.67 ms. Allocated memory is still 215.0 MB. Free memory was 194.8 MB in the beginning and 193.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 18:42:58,624 INFO L168 Benchmark]: RCFGBuilder took 441.70 ms. Allocated memory is still 215.0 MB. Free memory was 193.2 MB in the beginning and 173.3 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-06-12 18:42:58,625 INFO L168 Benchmark]: TraceAbstraction took 3014.75 ms. Allocated memory was 215.0 MB in the beginning and 276.8 MB in the end (delta: 61.9 MB). Free memory was 172.7 MB in the beginning and 252.7 MB in the end (delta: -80.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 18:42:58,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 215.0 MB. Free memory was 196.1 MB in the beginning and 196.0 MB in the end (delta: 86.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 203.07 ms. Allocated memory is still 215.0 MB. Free memory was 176.9 MB in the beginning and 196.3 MB in the end (delta: -19.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.62 ms. Allocated memory is still 215.0 MB. Free memory was 196.3 MB in the beginning and 194.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.67 ms. Allocated memory is still 215.0 MB. Free memory was 194.8 MB in the beginning and 193.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 441.70 ms. Allocated memory is still 215.0 MB. Free memory was 193.2 MB in the beginning and 173.3 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3014.75 ms. Allocated memory was 215.0 MB in the beginning and 276.8 MB in the end (delta: 61.9 MB). Free memory was 172.7 MB in the beginning and 252.7 MB in the end (delta: -80.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 79 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2886.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 19.5ms, AutomataDifference: 1736.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 28.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 126 SDtfs, 430 SDslu, 799 SDs, 0 SdLazy, 593 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 409.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 1608.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 38.8ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.1ms SsaConstructionTime, 149.0ms SatisfiabilityAnalysisTime, 775.5ms InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 928 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...