/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 14:01:25,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 14:01:25,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 14:01:25,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 14:01:25,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 14:01:25,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 14:01:25,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 14:01:25,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 14:01:25,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 14:01:25,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 14:01:25,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 14:01:25,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 14:01:25,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 14:01:25,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 14:01:25,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 14:01:25,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 14:01:25,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 14:01:25,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 14:01:25,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 14:01:25,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 14:01:25,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 14:01:25,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 14:01:25,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 14:01:25,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 14:01:25,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 14:01:25,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 14:01:25,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 14:01:25,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 14:01:25,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 14:01:25,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 14:01:25,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 14:01:25,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 14:01:25,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 14:01:25,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 14:01:25,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 14:01:25,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 14:01:25,224 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-SemanticLbe.epf [2021-03-11 14:01:25,257 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 14:01:25,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 14:01:25,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 14:01:25,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 14:01:25,261 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 14:01:25,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 14:01:25,261 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 14:01:25,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 14:01:25,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 14:01:25,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 14:01:25,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 14:01:25,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 14:01:25,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 14:01:25,263 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 14:01:25,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 14:01:25,263 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 14:01:25,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 14:01:25,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 14:01:25,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 14:01:25,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 14:01:25,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 14:01:25,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 14:01:25,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 14:01:25,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 14:01:25,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 14:01:25,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 14:01:25,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 14:01:25,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 14:01:25,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 14:01:25,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 14:01:25,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 14:01:25,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 14:01:25,594 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 14:01:25,594 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 14:01:25,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2021-03-11 14:01:25,644 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76f180b21/d6e02a0e89b44cb190f0140dd90002d6/FLAG64ba2eea9 [2021-03-11 14:01:26,031 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 14:01:26,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2021-03-11 14:01:26,031 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 14:01:26,031 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 14:01:26,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76f180b21/d6e02a0e89b44cb190f0140dd90002d6/FLAG64ba2eea9 [2021-03-11 14:01:26,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76f180b21/d6e02a0e89b44cb190f0140dd90002d6 [2021-03-11 14:01:26,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 14:01:26,440 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 14:01:26,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 14:01:26,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 14:01:26,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 14:01:26,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:01:26" (1/1) ... [2021-03-11 14:01:26,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea0886e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26, skipping insertion in model container [2021-03-11 14:01:26,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:01:26" (1/1) ... [2021-03-11 14:01:26,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 14:01:26,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 14:01:26,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 14:01:26,605 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 14:01:26,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 14:01:26,637 INFO L208 MainTranslator]: Completed translation [2021-03-11 14:01:26,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26 WrapperNode [2021-03-11 14:01:26,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 14:01:26,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 14:01:26,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 14:01:26,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 14:01:26,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26" (1/1) ... [2021-03-11 14:01:26,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26" (1/1) ... [2021-03-11 14:01:26,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 14:01:26,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 14:01:26,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 14:01:26,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 14:01:26,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26" (1/1) ... [2021-03-11 14:01:26,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26" (1/1) ... [2021-03-11 14:01:26,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26" (1/1) ... [2021-03-11 14:01:26,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26" (1/1) ... [2021-03-11 14:01:26,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26" (1/1) ... [2021-03-11 14:01:26,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26" (1/1) ... [2021-03-11 14:01:26,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26" (1/1) ... [2021-03-11 14:01:26,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 14:01:26,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 14:01:26,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 14:01:26,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 14:01:26,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26" (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 [2021-03-11 14:01:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 14:01:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-11 14:01:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-11 14:01:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 14:01:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 14:01:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 14:01:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 14:01:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 14:01:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 14:01:26,781 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 14:01:26,970 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 14:01:26,970 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-11 14:01:26,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:01:26 BoogieIcfgContainer [2021-03-11 14:01:26,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 14:01:26,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 14:01:26,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 14:01:26,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 14:01:26,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:01:26" (1/3) ... [2021-03-11 14:01:26,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434a2f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:01:26, skipping insertion in model container [2021-03-11 14:01:26,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:01:26" (2/3) ... [2021-03-11 14:01:26,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434a2f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:01:26, skipping insertion in model container [2021-03-11 14:01:26,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:01:26" (3/3) ... [2021-03-11 14:01:26,977 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2021-03-11 14:01:26,982 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 14:01:26,982 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 14:01:26,985 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 14:01:26,985 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 14:01:27,008 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,008 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,008 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,009 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,009 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,009 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,009 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,009 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,009 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,009 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,010 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,010 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,010 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,010 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,010 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,010 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,010 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,011 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,011 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,011 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,011 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,011 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,011 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,012 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,012 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,012 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,012 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,012 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,012 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,013 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,013 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,013 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,013 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,013 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,013 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,014 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,014 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,014 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,014 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,014 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,014 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,014 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,015 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,015 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,015 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,015 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,015 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,016 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,016 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,016 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,016 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,016 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,017 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,017 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,017 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,017 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,017 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,017 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,018 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,018 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,018 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,018 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,018 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,018 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,019 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,019 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,019 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,019 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,019 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,019 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,020 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,020 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,020 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,020 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,020 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,020 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,020 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,021 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,021 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,021 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,021 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,021 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,022 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,022 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,022 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,022 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,022 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,022 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,023 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,023 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,024 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,025 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,025 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,025 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,025 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,025 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,025 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,037 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,038 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,038 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,038 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,038 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,038 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,038 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,046 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,047 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,047 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,047 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,047 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,047 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,047 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:01:27,066 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-03-11 14:01:27,095 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 14:01:27,111 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:01:27,112 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:01:27,112 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:01:27,112 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:01:27,112 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:01:27,112 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:01:27,112 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:01:27,112 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:01:27,124 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:01:27,131 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 77 transitions, 196 flow [2021-03-11 14:01:27,134 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 77 transitions, 196 flow [2021-03-11 14:01:27,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 196 flow [2021-03-11 14:01:27,203 INFO L129 PetriNetUnfolder]: 5/85 cut-off events. [2021-03-11 14:01:27,203 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-11 14:01:27,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 85 events. 5/85 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2021-03-11 14:01:27,209 INFO L116 LiptonReduction]: Number of co-enabled transitions 1008 [2021-03-11 14:01:28,748 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-03-11 14:01:28,944 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-03-11 14:01:29,037 INFO L131 LiptonReduction]: Checked pairs total: 3906 [2021-03-11 14:01:29,038 INFO L133 LiptonReduction]: Total number of compositions: 43 [2021-03-11 14:01:29,044 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 112 flow [2021-03-11 14:01:29,069 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 354 states, 352 states have (on average 2.5255681818181817) internal successors, (889), 353 states have internal predecessors, (889), 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) [2021-03-11 14:01:29,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 354 states, 352 states have (on average 2.5255681818181817) internal successors, (889), 353 states have internal predecessors, (889), 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) [2021-03-11 14:01:29,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-03-11 14:01:29,082 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:01:29,083 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] [2021-03-11 14:01:29,087 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:01:29,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:01:29,092 INFO L82 PathProgramCache]: Analyzing trace with hash 937953268, now seen corresponding path program 1 times [2021-03-11 14:01:29,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:01:29,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713735713] [2021-03-11 14:01:29,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:01:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:01:29,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:01:29,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:01:29,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:01:29,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:01:29,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:01:29,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 14:01:29,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:01:29,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 14:01:29,304 INFO L142 QuantifierPusher]: treesize reduction 21, result has 47.5 percent of original size [2021-03-11 14:01:29,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 14:01:29,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:01:29,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:01:29,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:01:29,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713735713] [2021-03-11 14:01:29,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:01:29,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 14:01:29,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105586580] [2021-03-11 14:01:29,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 14:01:29,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:01:29,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 14:01:29,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-11 14:01:29,358 INFO L87 Difference]: Start difference. First operand has 354 states, 352 states have (on average 2.5255681818181817) internal successors, (889), 353 states have internal predecessors, (889), 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 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2021-03-11 14:01:29,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:01:29,586 INFO L93 Difference]: Finished difference Result 643 states and 1598 transitions. [2021-03-11 14:01:29,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 14:01:29,588 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 25 [2021-03-11 14:01:29,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:01:29,603 INFO L225 Difference]: With dead ends: 643 [2021-03-11 14:01:29,603 INFO L226 Difference]: Without dead ends: 587 [2021-03-11 14:01:29,604 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 68.5ms TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-11 14:01:29,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2021-03-11 14:01:29,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 417. [2021-03-11 14:01:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 416 states have (on average 2.516826923076923) internal successors, (1047), 416 states have internal predecessors, (1047), 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) [2021-03-11 14:01:29,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 1047 transitions. [2021-03-11 14:01:29,663 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 1047 transitions. Word has length 25 [2021-03-11 14:01:29,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:01:29,663 INFO L480 AbstractCegarLoop]: Abstraction has 417 states and 1047 transitions. [2021-03-11 14:01:29,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2021-03-11 14:01:29,664 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 1047 transitions. [2021-03-11 14:01:29,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-03-11 14:01:29,667 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:01:29,667 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] [2021-03-11 14:01:29,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 14:01:29,668 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:01:29,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:01:29,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1375178882, now seen corresponding path program 2 times [2021-03-11 14:01:29,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:01:29,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945301616] [2021-03-11 14:01:29,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:01:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:01:29,700 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:01:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:01:29,726 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:01:29,758 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 14:01:29,758 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 14:01:29,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 14:01:29,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:01:29 BasicIcfg [2021-03-11 14:01:29,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 14:01:29,805 INFO L168 Benchmark]: Toolchain (without parser) took 3368.47 ms. Allocated memory was 255.9 MB in the beginning and 427.8 MB in the end (delta: 172.0 MB). Free memory was 235.1 MB in the beginning and 369.8 MB in the end (delta: -134.7 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.0 GB. [2021-03-11 14:01:29,805 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:01:29,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.46 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 234.5 MB in the beginning and 341.6 MB in the end (delta: -107.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-11 14:01:29,806 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.84 ms. Allocated memory is still 356.5 MB. Free memory was 341.6 MB in the beginning and 340.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 14:01:29,806 INFO L168 Benchmark]: Boogie Preprocessor took 27.64 ms. Allocated memory is still 356.5 MB. Free memory was 339.7 MB in the beginning and 338.8 MB in the end (delta: 970.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:01:29,807 INFO L168 Benchmark]: RCFGBuilder took 263.53 ms. Allocated memory is still 356.5 MB. Free memory was 338.8 MB in the beginning and 323.4 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-11 14:01:29,808 INFO L168 Benchmark]: TraceAbstraction took 2831.19 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 323.0 MB in the beginning and 369.8 MB in the end (delta: -46.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.0 GB. [2021-03-11 14:01:29,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 196.46 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 234.5 MB in the beginning and 341.6 MB in the end (delta: -107.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.84 ms. Allocated memory is still 356.5 MB. Free memory was 341.6 MB in the beginning and 340.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.64 ms. Allocated memory is still 356.5 MB. Free memory was 339.7 MB in the beginning and 338.8 MB in the end (delta: 970.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 263.53 ms. Allocated memory is still 356.5 MB. Free memory was 338.8 MB in the beginning and 323.4 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2831.19 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 323.0 MB in the beginning and 369.8 MB in the end (delta: -46.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1904.2ms, 81 PlacesBefore, 39 PlacesAfterwards, 77 TransitionsBefore, 35 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 5 FixpointIterations, 25 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, 3906 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2354, positive: 2185, positive conditional: 0, positive unconditional: 2185, negative: 169, negative conditional: 0, negative unconditional: 169, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 766, positive: 723, positive conditional: 0, positive unconditional: 723, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 766, positive: 721, positive conditional: 0, positive unconditional: 721, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 185, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 179, negative conditional: 0, negative unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2354, positive: 1462, positive conditional: 0, positive unconditional: 1462, negative: 126, negative conditional: 0, negative unconditional: 126, unknown: 766, unknown conditional: 0, unknown unconditional: 766] , Statistics on independence cache: Total cache size (in pairs): 189, Positive cache size: 171, Positive conditional cache size: 0, Positive unconditional cache size: 171, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int counter = 0; [L23] 0 int val = 0; [L25] 0 pthread_t first_thread_id; [L26] 0 pthread_t second_thread_id; [L27] 0 pthread_t third_thread_id; [L29] FCALL, FORK 0 pthread_create(&first_thread_id, NULL, foo, &val) VAL [counter=0, n={6:0}] [L16] 1 int *x = (int *)n; [L17] EXPR 1 ++counter VAL [++counter=1, counter=1, n={6:0}, n={6:0}, x={6:0}] [L17] 1 *x = ++counter [L18] 1 return 0; [L30] FCALL, FORK 0 pthread_create(&second_thread_id, NULL, foo, &val) VAL [\result={0:0}, counter=1, n={6:0}, n={6:0}, x={6:0}] [L16] 2 int *x = (int *)n; [L17] 2 ++counter VAL [++counter=2, \result={0:0}, 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=2, \result={0:0}, counter=1, n={6:0}, n={6:0}, x={6:0}] [L33] 0 \read(first_thread_id) VAL [++counter=2, \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 [++counter=2, \result={0:0}, counter=1, n={6:0}, n={6:0}, x={6:0}] [L34] 0 \read(second_thread_id) VAL [++counter=2, \result={0:0}, counter=1, n={6:0}, n={6:0}, x={6:0}] [L17] 2 ++counter VAL [++counter=2, \result={0:0}, counter=2, n={6:0}, n={6:0}, x={6:0}] [L16] 3 int *x = (int *)n; [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 [L18] 3 return 0; [L17] 2 *x = ++counter [L18] 2 return 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] [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: 2649.9ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 16.4ms, AutomataDifference: 262.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1956.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 61 SDtfs, 77 SDslu, 220 SDs, 0 SdLazy, 207 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 122.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 68.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=417occurred in iteration=1, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 49.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 170 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.8ms SsaConstructionTime, 66.7ms SatisfiabilityAnalysisTime, 147.7ms InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 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...