/usr/bin/java -Xmx16000000000 -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/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 20:27:12,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 20:27:12,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 20:27:12,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-10 20:27:12,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-10 20:27:12,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-10 20:27:12,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-10 20:27:12,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-10 20:27:12,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-10 20:27:12,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-10 20:27:12,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-10 20:27:12,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-10 20:27:12,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 20:27:12,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 20:27:12,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 20:27:12,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 20:27:12,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 20:27:12,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 20:27:12,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 20:27:12,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 20:27:12,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 20:27:12,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 20:27:12,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 20:27:12,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 20:27:12,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-10 20:27:12,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-10 20:27:12,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-10 20:27:12,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-10 20:27:12,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-10 20:27:12,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-10 20:27:12,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-10 20:27:12,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-10 20:27:12,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-10 20:27:12,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-10 20:27:12,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-10 20:27:12,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-10 20:27:12,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-10 20:27:12,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-10 20:27:12,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 20:27:12,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 20:27:12,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 20:27:12,135 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 [2021-03-10 20:27:12,171 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 20:27:12,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 20:27:12,172 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 20:27:12,172 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 20:27:12,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 20:27:12,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 20:27:12,175 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 20:27:12,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 20:27:12,175 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 20:27:12,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 20:27:12,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 20:27:12,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 20:27:12,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 20:27:12,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 20:27:12,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 20:27:12,177 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 20:27:12,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 20:27:12,177 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 20:27:12,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 20:27:12,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 20:27:12,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 20:27:12,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 20:27:12,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 20:27:12,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 20:27:12,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 20:27:12,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 20:27:12,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 20:27:12,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 20:27:12,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 20:27:12,179 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 20:27:12,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 20:27:12,179 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 20:27:12,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 20:27:12,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 20:27:12,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 20:27:12,496 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 20:27:12,496 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 20:27:12,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2021-03-10 20:27:12,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8edd5d4f2/ec35e400fe3f433c86d536952bfc85d9/FLAG1ff05fbb1 [2021-03-10 20:27:12,955 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 20:27:12,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2021-03-10 20:27:12,955 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-10 20:27:12,956 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-10 20:27:12,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8edd5d4f2/ec35e400fe3f433c86d536952bfc85d9/FLAG1ff05fbb1 [2021-03-10 20:27:13,329 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8edd5d4f2/ec35e400fe3f433c86d536952bfc85d9 [2021-03-10 20:27:13,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 20:27:13,335 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 20:27:13,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 20:27:13,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 20:27:13,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 20:27:13,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 08:27:13" (1/1) ... [2021-03-10 20:27:13,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52902fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13, skipping insertion in model container [2021-03-10 20:27:13,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 08:27:13" (1/1) ... [2021-03-10 20:27:13,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 20:27:13,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 20:27:13,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 20:27:13,501 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 20:27:13,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 20:27:13,546 INFO L208 MainTranslator]: Completed translation [2021-03-10 20:27:13,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13 WrapperNode [2021-03-10 20:27:13,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 20:27:13,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 20:27:13,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 20:27:13,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 20:27:13,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13" (1/1) ... [2021-03-10 20:27:13,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13" (1/1) ... [2021-03-10 20:27:13,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 20:27:13,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 20:27:13,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 20:27:13,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 20:27:13,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13" (1/1) ... [2021-03-10 20:27:13,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13" (1/1) ... [2021-03-10 20:27:13,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13" (1/1) ... [2021-03-10 20:27:13,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13" (1/1) ... [2021-03-10 20:27:13,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13" (1/1) ... [2021-03-10 20:27:13,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13" (1/1) ... [2021-03-10 20:27:13,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13" (1/1) ... [2021-03-10 20:27:13,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 20:27:13,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 20:27:13,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 20:27:13,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 20:27:13,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13" (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 [2021-03-10 20:27:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 20:27:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-10 20:27:13,700 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-10 20:27:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 20:27:13,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 20:27:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-10 20:27:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 20:27:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 20:27:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 20:27:13,703 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 20:27:13,937 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 20:27:13,937 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-10 20:27:13,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:27:13 BoogieIcfgContainer [2021-03-10 20:27:13,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 20:27:13,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 20:27:13,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 20:27:13,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 20:27:13,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 08:27:13" (1/3) ... [2021-03-10 20:27:13,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64abd17f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:27:13, skipping insertion in model container [2021-03-10 20:27:13,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:27:13" (2/3) ... [2021-03-10 20:27:13,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64abd17f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:27:13, skipping insertion in model container [2021-03-10 20:27:13,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:27:13" (3/3) ... [2021-03-10 20:27:13,944 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2021-03-10 20:27:13,949 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 20:27:13,949 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 20:27:13,972 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 20:27:13,972 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 20:27:14,026 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,027 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,027 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,027 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,027 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,027 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,028 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,028 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,028 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,028 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,028 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,028 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,028 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,029 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,029 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,029 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,029 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,029 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,029 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,030 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,030 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,030 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,030 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,030 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,030 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,030 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,031 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,031 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,031 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,031 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,031 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,032 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,032 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,032 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,032 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,032 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,032 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,032 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,032 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,033 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,033 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,033 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,033 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,033 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,033 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,033 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,044 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,044 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,044 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,045 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,045 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,047 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,047 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,047 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,047 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,047 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,048 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,048 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,048 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,048 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,048 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,049 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,049 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,049 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,049 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,049 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,049 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,049 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,050 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,050 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,050 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,050 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,050 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,050 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,050 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,050 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,051 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,051 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,051 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,051 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,051 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,052 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,052 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,052 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,052 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,052 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,053 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,053 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,053 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,053 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,055 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,055 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,055 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,056 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,056 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,056 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,056 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,072 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,072 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,072 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,073 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,073 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,073 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,073 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,076 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,076 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,076 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,077 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,077 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,077 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,077 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:27:14,092 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-03-10 20:27:14,107 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-10 20:27:14,122 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:27:14,122 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:27:14,123 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:27:14,123 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:27:14,123 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:27:14,123 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:27:14,123 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:27:14,123 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:27:14,141 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 77 transitions, 196 flow [2021-03-10 20:27:14,372 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3297 states, 3295 states have (on average 3.1116843702579664) internal successors, (10253), 3296 states have internal predecessors, (10253), 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) [2021-03-10 20:27:14,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 3297 states, 3295 states have (on average 3.1116843702579664) internal successors, (10253), 3296 states have internal predecessors, (10253), 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) [2021-03-10 20:27:14,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-03-10 20:27:14,422 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:27:14,423 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:27:14,423 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:27:14,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:27:14,435 INFO L82 PathProgramCache]: Analyzing trace with hash -640381470, now seen corresponding path program 1 times [2021-03-10 20:27:14,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:27:14,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481963246] [2021-03-10 20:27:14,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:27:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:27:15,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:27:15,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481963246] [2021-03-10 20:27:15,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:27:15,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-10 20:27:15,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446595101] [2021-03-10 20:27:15,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-03-10 20:27:15,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:27:15,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-03-10 20:27:15,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-03-10 20:27:15,680 INFO L87 Difference]: Start difference. First operand has 3297 states, 3295 states have (on average 3.1116843702579664) internal successors, (10253), 3296 states have internal predecessors, (10253), 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 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 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) [2021-03-10 20:27:17,448 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2021-03-10 20:27:17,611 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2021-03-10 20:27:17,770 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2021-03-10 20:27:17,913 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2021-03-10 20:27:18,094 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2021-03-10 20:27:18,219 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2021-03-10 20:27:18,403 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2021-03-10 20:27:18,662 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-03-10 20:27:18,927 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-10 20:27:19,119 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2021-03-10 20:27:19,383 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2021-03-10 20:27:19,956 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2021-03-10 20:27:20,219 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2021-03-10 20:27:20,534 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2021-03-10 20:27:20,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:27:20,996 INFO L93 Difference]: Finished difference Result 12191 states and 37074 transitions. [2021-03-10 20:27:20,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-03-10 20:27:20,997 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 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 55 [2021-03-10 20:27:20,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:27:21,076 INFO L225 Difference]: With dead ends: 12191 [2021-03-10 20:27:21,077 INFO L226 Difference]: Without dead ends: 12134 [2021-03-10 20:27:21,078 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 4126.8ms TimeCoverageRelationStatistics Valid=599, Invalid=2593, Unknown=0, NotChecked=0, Total=3192 [2021-03-10 20:27:21,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12134 states. [2021-03-10 20:27:21,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12134 to 4079. [2021-03-10 20:27:21,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4079 states, 4078 states have (on average 3.1120647376164787) internal successors, (12691), 4078 states have internal predecessors, (12691), 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) [2021-03-10 20:27:21,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4079 states to 4079 states and 12691 transitions. [2021-03-10 20:27:21,379 INFO L78 Accepts]: Start accepts. Automaton has 4079 states and 12691 transitions. Word has length 55 [2021-03-10 20:27:21,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:27:21,381 INFO L480 AbstractCegarLoop]: Abstraction has 4079 states and 12691 transitions. [2021-03-10 20:27:21,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 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) [2021-03-10 20:27:21,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4079 states and 12691 transitions. [2021-03-10 20:27:21,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-03-10 20:27:21,396 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:27:21,396 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:27:21,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 20:27:21,397 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:27:21,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:27:21,400 INFO L82 PathProgramCache]: Analyzing trace with hash -2058352804, now seen corresponding path program 1 times [2021-03-10 20:27:21,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:27:21,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518299685] [2021-03-10 20:27:21,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:27:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:27:21,445 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:27:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:27:21,470 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:27:21,507 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-10 20:27:21,507 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-10 20:27:21,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 20:27:21,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 08:27:21 BasicIcfg [2021-03-10 20:27:21,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 20:27:21,580 INFO L168 Benchmark]: Toolchain (without parser) took 8247.12 ms. Allocated memory was 255.9 MB in the beginning and 434.1 MB in the end (delta: 178.3 MB). Free memory was 233.8 MB in the beginning and 202.1 MB in the end (delta: 31.7 MB). Peak memory consumption was 209.3 MB. Max. memory is 16.0 GB. [2021-03-10 20:27:21,580 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 178.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:27:21,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.84 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 233.2 MB in the beginning and 332.2 MB in the end (delta: -99.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-10 20:27:21,581 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.91 ms. Allocated memory is still 348.1 MB. Free memory was 331.9 MB in the beginning and 330.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:27:21,582 INFO L168 Benchmark]: Boogie Preprocessor took 28.54 ms. Allocated memory is still 348.1 MB. Free memory was 330.5 MB in the beginning and 329.5 MB in the end (delta: 979.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:27:21,582 INFO L168 Benchmark]: RCFGBuilder took 304.68 ms. Allocated memory is still 348.1 MB. Free memory was 329.5 MB in the beginning and 313.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-10 20:27:21,582 INFO L168 Benchmark]: TraceAbstraction took 7639.39 ms. Allocated memory was 348.1 MB in the beginning and 434.1 MB in the end (delta: 86.0 MB). Free memory was 313.0 MB in the beginning and 202.1 MB in the end (delta: 110.9 MB). Peak memory consumption was 198.3 MB. Max. memory is 16.0 GB. [2021-03-10 20:27:21,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 178.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 219.84 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 233.2 MB in the beginning and 332.2 MB in the end (delta: -99.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.91 ms. Allocated memory is still 348.1 MB. Free memory was 331.9 MB in the beginning and 330.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.54 ms. Allocated memory is still 348.1 MB. Free memory was 330.5 MB in the beginning and 329.5 MB in the end (delta: 979.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 304.68 ms. Allocated memory is still 348.1 MB. Free memory was 329.5 MB in the beginning and 313.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7639.39 ms. Allocated memory was 348.1 MB in the beginning and 434.1 MB in the end (delta: 86.0 MB). Free memory was 313.0 MB in the beginning and 202.1 MB in the end (delta: 110.9 MB). Peak memory consumption was 198.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int counter = 0; VAL [counter=0] [L23] 0 int val = 0; VAL [counter=0] [L25] 0 pthread_t first_thread_id; VAL [counter=0] [L26] 0 pthread_t second_thread_id; VAL [counter=0] [L27] 0 pthread_t third_thread_id; VAL [counter=0] [L29] FCALL, FORK 0 pthread_create(&first_thread_id, NULL, foo, &val) VAL [counter=0, n={6:0}] [L16] 1 int *x = (int *)n; VAL [counter=0, n={6:0}, n={6:0}, x={6:0}] [L17] EXPR 1 ++counter VAL [++counter=1, counter=1, n={6:0}, n={6:0}, x={6:0}] [L30] FCALL, FORK 0 pthread_create(&second_thread_id, NULL, foo, &val) VAL [++counter=1, counter=1, n={6:0}, n={6:0}, x={6:0}] [L17] 1 *x = ++counter VAL [++counter=1, counter=1, n={6:0}, n={6:0}, x={6:0}] [L31] FCALL, FORK 0 pthread_create(&third_thread_id, NULL, foo, &val) VAL [counter=1, n={6:0}, n={6:0}, x={6:0}] [L18] 1 return 0; VAL [\result={0:0}, counter=1, n={6:0}, n={6:0}, x={6:0}] [L33] 0 \read(first_thread_id) VAL [\result={0:0}, counter=1, n={6:0}, n={6:0}, x={6:0}] [L33] FCALL, JOIN 1 pthread_join(first_thread_id, NULL) VAL [\result={0:0}, counter=1, n={6:0}, n={6:0}, x={6:0}] [L16] 2 int *x = (int *)n; VAL [\result={0:0}, counter=1, n={6:0}, n={6:0}, x={6:0}] [L34] 0 \read(second_thread_id) VAL [\result={0:0}, counter=1, n={6:0}, n={6:0}, x={6:0}] [L17] EXPR 3 ++counter VAL [++counter=2, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L17] 3 *x = ++counter VAL [++counter=2, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L18] 3 return 0; VAL [++counter=2, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L18] 2 return 0; VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L34] FCALL, JOIN 2 pthread_join(second_thread_id, NULL) VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L35] 0 \read(third_thread_id) VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L35] FCALL, JOIN 3 pthread_join(third_thread_id, NULL) VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L37] FCALL 0 IdentifierExpression[val] VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L37] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7388.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 64.6ms, AutomataDifference: 5417.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 249.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 227 SDtfs, 777 SDslu, 2021 SDs, 0 SdLazy, 1709 SolverSat, 101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1300.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 4126.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4079occurred in iteration=1, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 290.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 8055 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.9ms SsaConstructionTime, 141.5ms SatisfiabilityAnalysisTime, 1028.2ms InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 860 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...