/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-21 00:16:35,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-21 00:16:35,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-21 00:16:35,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-21 00:16:35,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-21 00:16:35,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-21 00:16:35,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-21 00:16:35,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-21 00:16:35,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-21 00:16:35,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-21 00:16:35,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-21 00:16:35,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-21 00:16:35,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-21 00:16:35,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-21 00:16:35,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-21 00:16:35,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-21 00:16:35,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-21 00:16:35,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-21 00:16:35,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-21 00:16:35,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-21 00:16:35,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-21 00:16:35,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-21 00:16:35,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-21 00:16:35,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-21 00:16:35,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-21 00:16:35,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-21 00:16:35,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-21 00:16:35,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-21 00:16:35,291 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-keepdead.epf [2021-01-21 00:16:35,346 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-21 00:16:35,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-21 00:16:35,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-21 00:16:35,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-21 00:16:35,351 INFO L138 SettingsManager]: * Use SBE=true [2021-01-21 00:16:35,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-21 00:16:35,352 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-21 00:16:35,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-21 00:16:35,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-21 00:16:35,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-21 00:16:35,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-21 00:16:35,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-21 00:16:35,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-21 00:16:35,354 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-21 00:16:35,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-21 00:16:35,355 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-21 00:16:35,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-21 00:16:35,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-21 00:16:35,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-21 00:16:35,357 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-21 00:16:35,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-21 00:16:35,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-21 00:16:35,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-21 00:16:35,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-21 00:16:35,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-21 00:16:35,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-21 00:16:35,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-21 00:16:35,359 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-21 00:16:35,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-21 00:16:35,359 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-21 00:16:35,360 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-21 00:16:35,360 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-21 00:16:35,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-21 00:16:35,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-21 00:16:35,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-21 00:16:35,793 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-21 00:16:35,793 INFO L275 PluginConnector]: CDTParser initialized [2021-01-21 00:16:35,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2021-01-21 00:16:35,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/357561dfb/d839d627691c437e9b487470fedd5ec5/FLAG2458a4e58 [2021-01-21 00:16:36,446 INFO L306 CDTParser]: Found 1 translation units. [2021-01-21 00:16:36,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2021-01-21 00:16:36,447 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-01-21 00:16:36,447 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-01-21 00:16:36,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/357561dfb/d839d627691c437e9b487470fedd5ec5/FLAG2458a4e58 [2021-01-21 00:16:36,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/357561dfb/d839d627691c437e9b487470fedd5ec5 [2021-01-21 00:16:36,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-21 00:16:36,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-21 00:16:36,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-21 00:16:36,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-21 00:16:36,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-21 00:16:36,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:16:36" (1/1) ... [2021-01-21 00:16:36,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e120f74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:36, skipping insertion in model container [2021-01-21 00:16:36,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:16:36" (1/1) ... [2021-01-21 00:16:36,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-21 00:16:36,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-21 00:16:37,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-21 00:16:37,065 INFO L203 MainTranslator]: Completed pre-run [2021-01-21 00:16:37,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-21 00:16:37,094 INFO L208 MainTranslator]: Completed translation [2021-01-21 00:16:37,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:37 WrapperNode [2021-01-21 00:16:37,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-21 00:16:37,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-21 00:16:37,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-21 00:16:37,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-21 00:16:37,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:37" (1/1) ... [2021-01-21 00:16:37,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:37" (1/1) ... [2021-01-21 00:16:37,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-21 00:16:37,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-21 00:16:37,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-21 00:16:37,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-21 00:16:37,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:37" (1/1) ... [2021-01-21 00:16:37,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:37" (1/1) ... [2021-01-21 00:16:37,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:37" (1/1) ... [2021-01-21 00:16:37,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:37" (1/1) ... [2021-01-21 00:16:37,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:37" (1/1) ... [2021-01-21 00:16:37,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:37" (1/1) ... [2021-01-21 00:16:37,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:37" (1/1) ... [2021-01-21 00:16:37,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-21 00:16:37,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-21 00:16:37,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-21 00:16:37,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-21 00:16:37,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:37" (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 [2021-01-21 00:16:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-21 00:16:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-01-21 00:16:37,237 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-01-21 00:16:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-21 00:16:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-21 00:16:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-21 00:16:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-21 00:16:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-21 00:16:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-21 00:16:37,243 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-21 00:16:37,789 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-21 00:16:37,789 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-21 00:16:37,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:16:37 BoogieIcfgContainer [2021-01-21 00:16:37,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-21 00:16:37,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-21 00:16:37,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-21 00:16:37,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-21 00:16:37,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 12:16:36" (1/3) ... [2021-01-21 00:16:37,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488c03be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:16:37, skipping insertion in model container [2021-01-21 00:16:37,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:16:37" (2/3) ... [2021-01-21 00:16:37,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488c03be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:16:37, skipping insertion in model container [2021-01-21 00:16:37,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:16:37" (3/3) ... [2021-01-21 00:16:37,802 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2021-01-21 00:16:37,822 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-21 00:16:37,822 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-21 00:16:37,827 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-21 00:16:37,828 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-21 00:16:37,888 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,888 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,889 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,889 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,889 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,889 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,889 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,890 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,890 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,890 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,891 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,891 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,891 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,891 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,892 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,892 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,892 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,893 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,893 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,893 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,894 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,894 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,894 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,895 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,895 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,895 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,896 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,896 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,896 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,897 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,897 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,897 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,898 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,898 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,898 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,898 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,899 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,899 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,899 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,900 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,900 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,900 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,900 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,900 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,900 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,901 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,901 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,901 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,901 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,902 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,902 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,903 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,903 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,903 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,904 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,904 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,904 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,904 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,905 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,905 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,906 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,906 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,906 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,906 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,907 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,907 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,907 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,907 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,908 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,908 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,908 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,908 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,909 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,909 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,910 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,910 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,911 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,911 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,912 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,912 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,913 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,913 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,914 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,914 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,915 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,915 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,915 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,915 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,916 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,916 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,919 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,919 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,919 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,919 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,920 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,920 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,920 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,934 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,935 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,937 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,938 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,938 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,938 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,939 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,942 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,942 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,942 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,943 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,943 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,943 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,943 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-21 00:16:37,970 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-01-21 00:16:37,988 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-21 00:16:38,028 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-21 00:16:38,029 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-21 00:16:38,029 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-21 00:16:38,029 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-21 00:16:38,029 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-21 00:16:38,029 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-21 00:16:38,030 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-21 00:16:38,030 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-21 00:16:38,048 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 77 transitions, 196 flow [2021-01-21 00:16:38,360 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) [2021-01-21 00:16:38,377 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) [2021-01-21 00:16:38,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:16:38,424 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:16:38,425 INFO L504 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] [2021-01-21 00:16:38,425 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:16:38,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:16:38,437 INFO L82 PathProgramCache]: Analyzing trace with hash -640381470, now seen corresponding path program 1 times [2021-01-21 00:16:38,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:16:38,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894105662] [2021-01-21 00:16:38,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:16:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-21 00:16:39,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-21 00:16:39,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894105662] [2021-01-21 00:16:39,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-21 00:16:39,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-01-21 00:16:39,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970681747] [2021-01-21 00:16:39,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-01-21 00:16:39,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-21 00:16:39,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-01-21 00:16:39,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-01-21 00:16:39,705 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) [2021-01-21 00:16:41,581 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2021-01-21 00:16:41,826 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2021-01-21 00:16:42,032 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2021-01-21 00:16:42,211 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-01-21 00:16:42,454 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-01-21 00:16:42,624 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-01-21 00:16:42,833 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-01-21 00:16:43,107 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-01-21 00:16:44,393 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2021-01-21 00:16:44,651 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2021-01-21 00:16:44,862 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-01-21 00:16:45,007 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2021-01-21 00:16:45,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-21 00:16:45,533 INFO L93 Difference]: Finished difference Result 12191 states and 37074 transitions. [2021-01-21 00:16:45,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-01-21 00:16:45,537 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 [2021-01-21 00:16:45,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-21 00:16:45,543 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=598, Invalid=2594, Unknown=0, NotChecked=0, Total=3192 [2021-01-21 00:16:45,544 INFO L78 Accepts]: Start accepts. Automaton has 12191 states and 37074 transitions. Word has length 55 [2021-01-21 00:16:45,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-21 00:16:45,547 INFO L481 AbstractCegarLoop]: Abstraction has 12191 states and 37074 transitions. [2021-01-21 00:16:45,547 INFO L482 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) [2021-01-21 00:16:45,547 INFO L276 IsEmpty]: Start isEmpty. Operand 12191 states and 37074 transitions. [2021-01-21 00:16:45,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-21 00:16:45,603 INFO L496 BasicCegarLoop]: Found error trace [2021-01-21 00:16:45,604 INFO L504 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] [2021-01-21 00:16:45,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-21 00:16:45,604 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-01-21 00:16:45,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-21 00:16:45,605 INFO L82 PathProgramCache]: Analyzing trace with hash -2058352804, now seen corresponding path program 1 times [2021-01-21 00:16:45,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-21 00:16:45,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330471201] [2021-01-21 00:16:45,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-21 00:16:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-21 00:16:45,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-21 00:16:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-21 00:16:45,687 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-21 00:16:45,726 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-21 00:16:45,726 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-01-21 00:16:45,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-21 00:16:45,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 12:16:45 BasicIcfg [2021-01-21 00:16:45,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-21 00:16:45,834 INFO L168 Benchmark]: Toolchain (without parser) took 8948.45 ms. Allocated memory was 304.1 MB in the beginning and 402.7 MB in the end (delta: 98.6 MB). Free memory was 277.7 MB in the beginning and 242.0 MB in the end (delta: 35.7 MB). Peak memory consumption was 138.0 MB. Max. memory is 16.0 GB. [2021-01-21 00:16:45,836 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 304.1 MB. Free memory was 275.2 MB in the beginning and 275.1 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-21 00:16:45,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.74 ms. Allocated memory is still 304.1 MB. Free memory was 277.5 MB in the beginning and 268.7 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-01-21 00:16:45,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.94 ms. Allocated memory is still 304.1 MB. Free memory was 268.7 MB in the beginning and 267.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-21 00:16:45,839 INFO L168 Benchmark]: Boogie Preprocessor took 20.51 ms. Allocated memory is still 304.1 MB. Free memory was 267.3 MB in the beginning and 266.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-21 00:16:45,841 INFO L168 Benchmark]: RCFGBuilder took 636.78 ms. Allocated memory is still 304.1 MB. Free memory was 266.2 MB in the beginning and 282.9 MB in the end (delta: -16.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-01-21 00:16:45,843 INFO L168 Benchmark]: TraceAbstraction took 8036.68 ms. Allocated memory was 304.1 MB in the beginning and 402.7 MB in the end (delta: 98.6 MB). Free memory was 282.9 MB in the beginning and 242.0 MB in the end (delta: 40.9 MB). Peak memory consumption was 142.6 MB. Max. memory is 16.0 GB. [2021-01-21 00:16:45,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 304.1 MB. Free memory was 275.2 MB in the beginning and 275.1 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 208.74 ms. Allocated memory is still 304.1 MB. Free memory was 277.5 MB in the beginning and 268.7 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 37.94 ms. Allocated memory is still 304.1 MB. Free memory was 268.7 MB in the beginning and 267.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.51 ms. Allocated memory is still 304.1 MB. Free memory was 267.3 MB in the beginning and 266.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 636.78 ms. Allocated memory is still 304.1 MB. Free memory was 266.2 MB in the beginning and 282.9 MB in the end (delta: -16.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8036.68 ms. Allocated memory was 304.1 MB in the beginning and 402.7 MB in the end (delta: 98.6 MB). Free memory was 282.9 MB in the beginning and 242.0 MB in the end (delta: 40.9 MB). Peak memory consumption was 142.6 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: 7.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 227 SDtfs, 778 SDslu, 2084 SDs, 0 SdLazy, 1759 SolverSat, 100 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12191occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 42822 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...