/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 19:28:39,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 19:28:39,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 19:28:39,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 19:28:39,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 19:28:39,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 19:28:39,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 19:28:39,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 19:28:39,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 19:28:39,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 19:28:39,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 19:28:39,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 19:28:39,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 19:28:39,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 19:28:39,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 19:28:39,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 19:28:39,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 19:28:39,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 19:28:39,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 19:28:39,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 19:28:39,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 19:28:39,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 19:28:39,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 19:28:39,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 19:28:39,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 19:28:39,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 19:28:39,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 19:28:39,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 19:28:39,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 19:28:39,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 19:28:39,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 19:28:39,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 19:28:39,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 19:28:39,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 19:28:39,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 19:28:39,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 19:28:39,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 19:28:39,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 19:28:39,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 19:28:39,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 19:28:39,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 19:28:39,965 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-09 19:28:40,005 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 19:28:40,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 19:28:40,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 19:28:40,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 19:28:40,008 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 19:28:40,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 19:28:40,009 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 19:28:40,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 19:28:40,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 19:28:40,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 19:28:40,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 19:28:40,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 19:28:40,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 19:28:40,012 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 19:28:40,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 19:28:40,013 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 19:28:40,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 19:28:40,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 19:28:40,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 19:28:40,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 19:28:40,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 19:28:40,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 19:28:40,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 19:28:40,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 19:28:40,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 19:28:40,015 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 19:28:40,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 19:28:40,015 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 19:28:40,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 19:28:40,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 19:28:40,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 19:28:40,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 19:28:40,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 19:28:40,317 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 19:28:40,317 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 19:28:40,318 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-10-09 19:28:40,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a0c376b7/f4c371b4b23f43c1978e5aec0c7de7e3/FLAGed9f45efe [2020-10-09 19:28:40,852 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 19:28:40,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-10-09 19:28:40,854 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-09 19:28:40,854 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-09 19:28:40,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a0c376b7/f4c371b4b23f43c1978e5aec0c7de7e3/FLAGed9f45efe [2020-10-09 19:28:41,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a0c376b7/f4c371b4b23f43c1978e5aec0c7de7e3 [2020-10-09 19:28:41,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 19:28:41,224 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 19:28:41,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 19:28:41,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 19:28:41,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 19:28:41,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 07:28:41" (1/1) ... [2020-10-09 19:28:41,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2be143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41, skipping insertion in model container [2020-10-09 19:28:41,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 07:28:41" (1/1) ... [2020-10-09 19:28:41,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 19:28:41,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 19:28:41,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 19:28:41,545 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 19:28:41,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 19:28:41,575 INFO L208 MainTranslator]: Completed translation [2020-10-09 19:28:41,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41 WrapperNode [2020-10-09 19:28:41,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 19:28:41,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 19:28:41,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 19:28:41,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 19:28:41,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41" (1/1) ... [2020-10-09 19:28:41,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41" (1/1) ... [2020-10-09 19:28:41,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 19:28:41,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 19:28:41,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 19:28:41,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 19:28:41,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41" (1/1) ... [2020-10-09 19:28:41,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41" (1/1) ... [2020-10-09 19:28:41,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41" (1/1) ... [2020-10-09 19:28:41,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41" (1/1) ... [2020-10-09 19:28:41,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41" (1/1) ... [2020-10-09 19:28:41,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41" (1/1) ... [2020-10-09 19:28:41,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41" (1/1) ... [2020-10-09 19:28:41,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 19:28:41,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 19:28:41,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 19:28:41,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 19:28:41,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41" (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 [2020-10-09 19:28:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 19:28:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-09 19:28:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-09 19:28:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 19:28:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 19:28:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-09 19:28:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-09 19:28:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 19:28:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 19:28:41,732 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 19:28:42,010 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 19:28:42,011 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-09 19:28:42,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 07:28:42 BoogieIcfgContainer [2020-10-09 19:28:42,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 19:28:42,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 19:28:42,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 19:28:42,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 19:28:42,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 07:28:41" (1/3) ... [2020-10-09 19:28:42,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e9c0d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 07:28:42, skipping insertion in model container [2020-10-09 19:28:42,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 07:28:41" (2/3) ... [2020-10-09 19:28:42,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e9c0d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 07:28:42, skipping insertion in model container [2020-10-09 19:28:42,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 07:28:42" (3/3) ... [2020-10-09 19:28:42,026 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2020-10-09 19:28:42,043 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 19:28:42,054 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 19:28:42,056 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 19:28:42,103 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,103 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,103 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,104 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,104 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,104 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,105 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,105 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,105 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,106 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,106 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,106 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,106 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,107 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,107 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,107 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,108 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,108 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,108 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,108 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,109 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,109 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,109 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,109 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,110 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,110 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,110 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,111 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,111 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,111 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,112 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,112 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,112 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,112 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,113 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,113 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,113 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,113 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,114 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,114 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,114 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,115 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,115 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,115 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,115 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,120 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,121 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,121 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,121 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,121 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,122 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,122 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,132 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,132 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,132 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,133 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,133 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,133 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,133 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,142 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,142 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,142 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,142 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,143 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,143 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,143 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 19:28:42,183 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-09 19:28:42,206 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 19:28:42,206 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 19:28:42,206 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 19:28:42,207 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 19:28:42,207 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 19:28:42,207 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 19:28:42,207 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 19:28:42,207 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 19:28:42,224 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 196 flow [2020-10-09 19:28:42,290 INFO L129 PetriNetUnfolder]: 5/85 cut-off events. [2020-10-09 19:28:42,290 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-09 19:28:42,299 INFO L80 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. [2020-10-09 19:28:42,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 77 transitions, 196 flow [2020-10-09 19:28:42,307 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 61 transitions, 158 flow [2020-10-09 19:28:42,356 INFO L129 PetriNetUnfolder]: 5/71 cut-off events. [2020-10-09 19:28:42,357 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-09 19:28:42,357 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 19:28:42,359 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-09 19:28:42,359 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-09 19:28:42,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 19:28:42,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1598168404, now seen corresponding path program 1 times [2020-10-09 19:28:42,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 19:28:42,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897642144] [2020-10-09 19:28:42,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-09 19:28:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 19:28:42,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 36 conjunts are in the unsatisfiable core [2020-10-09 19:28:42,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 19:28:42,864 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-09 19:28:42,864 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:42,874 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:42,875 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 19:28:42,876 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2020-10-09 19:28:42,916 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-09 19:28:42,917 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:42,920 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:42,920 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 19:28:42,921 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2020-10-09 19:28:42,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 19:28:42,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 19:28:43,002 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2020-10-09 19:28:43,010 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2020-10-09 19:28:43,017 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:43,018 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-10-09 19:28:43,018 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:10 [2020-10-09 19:28:43,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 19:28:43,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897642144] [2020-10-09 19:28:43,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 19:28:43,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 10] imperfect sequences [] total 20 [2020-10-09 19:28:43,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893867412] [2020-10-09 19:28:43,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-09 19:28:43,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 19:28:43,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-09 19:28:43,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2020-10-09 19:28:47,956 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 77 [2020-10-09 19:28:47,961 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 158 flow. Second operand 21 states. [2020-10-09 19:28:47,961 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 19:28:47,961 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 77 [2020-10-09 19:28:47,963 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 19:28:48,650 INFO L129 PetriNetUnfolder]: 260/916 cut-off events. [2020-10-09 19:28:48,650 INFO L130 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2020-10-09 19:28:48,656 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1479 conditions, 916 events. 260/916 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6466 event pairs, 15 based on Foata normal form. 1/900 useless extension candidates. Maximal degree in co-relation 1319. Up to 160 conditions per place. [2020-10-09 19:28:48,664 INFO L132 encePairwiseOnDemand]: 60/77 looper letters, 59 selfloop transitions, 28 changer transitions 1/127 dead transitions. [2020-10-09 19:28:48,664 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 127 transitions, 472 flow [2020-10-09 19:28:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-09 19:28:48,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-09 19:28:48,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 921 transitions. [2020-10-09 19:28:48,685 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.747564935064935 [2020-10-09 19:28:48,686 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 921 transitions. [2020-10-09 19:28:48,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 921 transitions. [2020-10-09 19:28:48,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 19:28:48,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 921 transitions. [2020-10-09 19:28:48,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 17 states. [2020-10-09 19:28:48,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 17 states. [2020-10-09 19:28:48,709 INFO L81 ComplementDD]: Finished complementDD. Result 17 states. [2020-10-09 19:28:48,711 INFO L185 Difference]: Start difference. First operand has 65 places, 61 transitions, 158 flow. Second operand 16 states and 921 transitions. [2020-10-09 19:28:48,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 127 transitions, 472 flow [2020-10-09 19:28:48,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 127 transitions, 444 flow, removed 0 selfloop flow, removed 6 redundant places. [2020-10-09 19:28:48,725 INFO L241 Difference]: Finished difference. Result has 83 places, 86 transitions, 309 flow [2020-10-09 19:28:48,728 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=309, PETRI_PLACES=83, PETRI_TRANSITIONS=86} [2020-10-09 19:28:48,729 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 18 predicate places. [2020-10-09 19:28:48,729 INFO L481 AbstractCegarLoop]: Abstraction has has 83 places, 86 transitions, 309 flow [2020-10-09 19:28:48,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-09 19:28:48,730 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 19:28:48,730 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-09 19:28:48,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 19:28:48,942 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-09 19:28:48,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 19:28:48,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1081466416, now seen corresponding path program 1 times [2020-10-09 19:28:48,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 19:28:48,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820568470] [2020-10-09 19:28:48,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-09 19:28:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 19:28:49,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 42 conjunts are in the unsatisfiable core [2020-10-09 19:28:49,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 19:28:49,030 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-09 19:28:49,030 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:49,036 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:49,037 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-09 19:28:49,038 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2020-10-09 19:28:49,060 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:49,060 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-10-09 19:28:49,064 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 19:28:49,069 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:49,075 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:49,076 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-09 19:28:49,076 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:14 [2020-10-09 19:28:49,114 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-09 19:28:49,115 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:49,124 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:49,125 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 19:28:49,125 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2020-10-09 19:28:49,321 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-10-09 19:28:49,322 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:49,334 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:49,338 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-09 19:28:49,338 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:38, output treesize:34 [2020-10-09 19:28:49,459 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:49,460 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 76 [2020-10-09 19:28:49,461 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:49,518 INFO L625 ElimStorePlain]: treesize reduction 32, result has 62.8 percent of original size [2020-10-09 19:28:49,526 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 19:28:49,530 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 19:28:49,533 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-09 19:28:49,533 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:42, output treesize:39 [2020-10-09 19:28:49,535 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 19:28:49,579 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 19:28:49,873 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 7, 1] term [2020-10-09 19:28:49,874 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 19:28:49,892 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-10-09 19:28:49,893 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:49,930 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:49,936 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-10-09 19:28:49,936 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:49,971 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:49,979 INFO L545 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-10-09 19:28:49,980 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:74, output treesize:52 [2020-10-09 19:28:50,068 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-10-09 19:28:50,068 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 19:28:50,099 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-10-09 19:28:50,100 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:50,150 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:50,159 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-10-09 19:28:50,160 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:50,180 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:50,184 INFO L545 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2020-10-09 19:28:50,184 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:65, output treesize:51 [2020-10-09 19:28:50,292 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-10-09 19:28:50,293 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 19:28:50,303 INFO L441 ElimStorePlain]: Different costs {1=[|#memory_int|], 2=[v_prenex_6]} [2020-10-09 19:28:50,308 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2020-10-09 19:28:50,309 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:50,325 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:50,329 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2020-10-09 19:28:50,331 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-09 19:28:50,343 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 19:28:50,346 INFO L545 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 19:28:50,347 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:59, output treesize:7 [2020-10-09 19:28:50,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 19:28:50,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 19:28:54,179 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 20 [2020-10-09 19:29:51,567 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 19:29:53,187 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 249 DAG size of output: 50 [2020-10-09 19:29:53,189 INFO L625 ElimStorePlain]: treesize reduction 10110, result has 0.9 percent of original size [2020-10-09 19:29:53,191 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-09 19:29:53,220 INFO L545 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 19:29:53,220 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:136, output treesize:33 [2020-10-09 19:29:55,296 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 19:29:56,118 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-09 19:29:56,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 19:29:56,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820568470] [2020-10-09 19:29:56,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 19:29:56,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22, 22] imperfect sequences [] total 40 [2020-10-09 19:29:56,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670621959] [2020-10-09 19:29:56,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-09 19:29:56,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 19:29:56,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-09 19:29:56,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1413, Unknown=15, NotChecked=0, Total=1560 [2020-10-09 19:32:27,859 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 77 [2020-10-09 19:32:27,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 86 transitions, 309 flow. Second operand 40 states. [2020-10-09 19:32:27,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 19:32:27,861 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 77 [2020-10-09 19:32:27,861 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 19:32:36,255 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-10-09 19:32:53,960 WARN L193 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 46 [2020-10-09 19:33:34,101 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-10-09 19:33:34,327 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-09 19:33:34,531 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-10-09 19:33:52,983 WARN L193 SmtUtils]: Spent 6.10 s on a formula simplification that was a NOOP. DAG size: 51 [2020-10-09 19:34:23,092 WARN L193 SmtUtils]: Spent 6.56 s on a formula simplification that was a NOOP. DAG size: 73 [2020-10-09 19:34:52,533 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification that was a NOOP. DAG size: 60 [2020-10-09 19:37:24,289 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-09 19:37:49,542 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 42 [2020-10-09 19:37:49,902 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-10-09 19:37:50,256 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-10-09 19:37:50,520 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2020-10-09 19:37:50,756 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2020-10-09 19:37:50,968 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-10-09 19:38:53,403 WARN L193 SmtUtils]: Spent 55.69 s on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-10-09 19:39:18,033 WARN L193 SmtUtils]: Spent 4.16 s on a formula simplification that was a NOOP. DAG size: 65 [2020-10-09 19:39:53,298 WARN L193 SmtUtils]: Spent 29.11 s on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-09 19:39:53,546 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2020-10-09 19:41:25,191 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-09 19:41:37,289 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((fooThread1of1ForFork0_~x~0.offset Int) (|fooThread1of1ForFork2_#t~pre0| Int) (|ULTIMATE.start_main_~#third_thread_id~0.offset| Int) (fooThread1of1ForFork2_~x~0.offset Int) (|fooThread1of1ForFork0_#t~pre0| Int)) (< (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#third_thread_id~0.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset| 2)))) (store .cse2 c_fooThread1of1ForFork0_~n.base (store (select .cse2 c_fooThread1of1ForFork0_~n.base) fooThread1of1ForFork0_~x~0.offset |fooThread1of1ForFork0_#t~pre0|))))) (store .cse1 |c_ULTIMATE.start_main_~#val~0.base| (store (select .cse1 |c_ULTIMATE.start_main_~#val~0.base|) fooThread1of1ForFork2_~x~0.offset |fooThread1of1ForFork2_#t~pre0|))))) (store .cse0 c_fooThread1of1ForFork1_~x~0.base (store (select .cse0 c_fooThread1of1ForFork1_~x~0.base) c_fooThread1of1ForFork1_~x~0.offset |c_fooThread1of1ForFork1_#t~pre0|))) |c_ULTIMATE.start_main_~#second_thread_id~0.base|) |c_ULTIMATE.start_main_~#second_thread_id~0.offset|) 2)) (forall ((|fooThread1of1ForFork2_#t~pre0| Int) (fooThread1of1ForFork2_~x~0.offset Int)) (< (select (select (let ((.cse3 (store |c_#memory_int| |c_fooThread1of1ForFork2_#in~n.base| (store (select |c_#memory_int| |c_fooThread1of1ForFork2_#in~n.base|) fooThread1of1ForFork2_~x~0.offset |fooThread1of1ForFork2_#t~pre0|)))) (store .cse3 c_fooThread1of1ForFork1_~x~0.base (store (select .cse3 c_fooThread1of1ForFork1_~x~0.base) c_fooThread1of1ForFork1_~x~0.offset |c_fooThread1of1ForFork1_#t~pre0|))) |c_ULTIMATE.start_main_~#second_thread_id~0.base|) |c_ULTIMATE.start_main_~#second_thread_id~0.offset|) c_fooThread1of1ForFork2_thidvar0)) (forall ((fooThread1of1ForFork0_~x~0.offset Int) (|fooThread1of1ForFork2_#t~pre0| Int) (|ULTIMATE.start_main_~#third_thread_id~0.offset| Int) (fooThread1of1ForFork2_~x~0.offset Int) (|fooThread1of1ForFork0_#t~pre0| Int)) (< (select (select (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#third_thread_id~0.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset| 2)))) (store .cse6 |c_fooThread1of1ForFork0_#in~n.base| (store (select .cse6 |c_fooThread1of1ForFork0_#in~n.base|) fooThread1of1ForFork0_~x~0.offset |fooThread1of1ForFork0_#t~pre0|))))) (store .cse5 |c_ULTIMATE.start_main_~#val~0.base| (store (select .cse5 |c_ULTIMATE.start_main_~#val~0.base|) fooThread1of1ForFork2_~x~0.offset |fooThread1of1ForFork2_#t~pre0|))))) (store .cse4 c_fooThread1of1ForFork1_~x~0.base (store (select .cse4 c_fooThread1of1ForFork1_~x~0.base) c_fooThread1of1ForFork1_~x~0.offset |c_fooThread1of1ForFork1_#t~pre0|))) |c_ULTIMATE.start_main_~#second_thread_id~0.base|) |c_ULTIMATE.start_main_~#second_thread_id~0.offset|) 2))) is different from false [2020-10-09 19:42:22,022 WARN L193 SmtUtils]: Spent 4.08 s on a formula simplification that was a NOOP. DAG size: 61 [2020-10-09 19:42:46,327 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 76 Received shutdown request... [2020-10-09 19:43:25,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-10-09 19:43:25,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 19:43:25,397 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-09 19:43:25,403 WARN L235 ceAbstractionStarter]: Timeout [2020-10-09 19:43:25,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 07:43:25 BasicIcfg [2020-10-09 19:43:25,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 19:43:25,405 INFO L168 Benchmark]: Toolchain (without parser) took 884181.86 ms. Allocated memory was 252.7 MB in the beginning and 430.4 MB in the end (delta: 177.7 MB). Free memory was 207.7 MB in the beginning and 234.7 MB in the end (delta: -27.0 MB). Peak memory consumption was 150.8 MB. Max. memory is 14.2 GB. [2020-10-09 19:43:25,406 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 252.7 MB. Free memory was 230.8 MB in the beginning and 229.9 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. [2020-10-09 19:43:25,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.87 ms. Allocated memory was 252.7 MB in the beginning and 316.1 MB in the end (delta: 63.4 MB). Free memory was 207.7 MB in the beginning and 290.2 MB in the end (delta: -82.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 14.2 GB. [2020-10-09 19:43:25,408 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.37 ms. Allocated memory is still 316.1 MB. Free memory was 290.2 MB in the beginning and 288.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-09 19:43:25,408 INFO L168 Benchmark]: Boogie Preprocessor took 35.38 ms. Allocated memory is still 316.1 MB. Free memory was 288.5 MB in the beginning and 287.7 MB in the end (delta: 838.8 kB). Peak memory consumption was 838.8 kB. Max. memory is 14.2 GB. [2020-10-09 19:43:25,409 INFO L168 Benchmark]: RCFGBuilder took 358.87 ms. Allocated memory is still 316.1 MB. Free memory was 287.7 MB in the beginning and 269.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 14.2 GB. [2020-10-09 19:43:25,410 INFO L168 Benchmark]: TraceAbstraction took 883388.45 ms. Allocated memory was 316.1 MB in the beginning and 430.4 MB in the end (delta: 114.3 MB). Free memory was 268.5 MB in the beginning and 234.7 MB in the end (delta: 33.8 MB). Peak memory consumption was 148.1 MB. Max. memory is 14.2 GB. [2020-10-09 19:43:25,415 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 252.7 MB. Free memory was 230.8 MB in the beginning and 229.9 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 350.87 ms. Allocated memory was 252.7 MB in the beginning and 316.1 MB in the end (delta: 63.4 MB). Free memory was 207.7 MB in the beginning and 290.2 MB in the end (delta: -82.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 42.37 ms. Allocated memory is still 316.1 MB. Free memory was 290.2 MB in the beginning and 288.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 35.38 ms. Allocated memory is still 316.1 MB. Free memory was 288.5 MB in the beginning and 287.7 MB in the end (delta: 838.8 kB). Peak memory consumption was 838.8 kB. Max. memory is 14.2 GB. * RCFGBuilder took 358.87 ms. Allocated memory is still 316.1 MB. Free memory was 287.7 MB in the beginning and 269.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 883388.45 ms. Allocated memory was 316.1 MB in the beginning and 430.4 MB in the end (delta: 114.3 MB). Free memory was 268.5 MB in the beginning and 234.7 MB in the end (delta: 33.8 MB). Peak memory consumption was 148.1 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 37]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 37). Cancelled while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 103 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 883.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 814.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 55 SDtfs, 633 SDslu, 1666 SDs, 0 SdLazy, 3707 SolverSat, 77 SolverUnsat, 136 SolverUnknown, 0 SolverNotchecked, 257.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 286 GetRequests, 158 SyntacticMatches, 1 SemanticMatches, 126 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2605 ImplicationChecksByTransitivity, 527.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=309occurred 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, 0.0s SatisfiabilityAnalysisTime, 67.9s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 216 ConstructedInterpolants, 37 QuantifiedInterpolants, 213030 SizeOfPredicates, 53 NumberOfNonLiveVariables, 290 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 could not prove your program: Timeout Completed graceful shutdown