/usr/bin/java -Xmx8000000000 -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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/concurrent/pthreads/forkFork.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 14:00:44,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 14:00:44,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 14:00:44,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 14:00:44,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 14:00:44,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 14:00:44,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 14:00:44,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 14:00:44,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 14:00:44,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 14:00:44,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 14:00:44,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 14:00:44,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 14:00:44,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 14:00:44,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 14:00:44,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 14:00:44,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 14:00:44,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 14:00:44,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 14:00:44,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 14:00:44,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 14:00:44,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 14:00:44,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 14:00:44,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 14:00:44,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 14:00:44,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 14:00:44,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 14:00:44,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 14:00:44,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 14:00:44,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 14:00:44,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 14:00:44,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 14:00:44,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 14:00:44,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 14:00:44,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 14:00:44,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 14:00:44,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 14:00:44,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 14:00:44,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 14:00:44,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 14:00:44,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 14:00:44,903 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 14:00:44,943 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 14:00:44,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 14:00:44,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 14:00:44,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 14:00:44,946 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 14:00:44,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 14:00:44,946 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 14:00:44,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 14:00:44,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 14:00:44,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 14:00:44,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 14:00:44,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 14:00:44,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 14:00:44,949 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 14:00:44,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 14:00:44,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 14:00:44,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 14:00:44,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 14:00:44,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 14:00:44,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 14:00:44,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 14:00:44,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 14:00:44,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 14:00:44,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 14:00:44,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 14:00:44,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 14:00:44,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 14:00:44,952 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 14:00:44,952 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 14:00:44,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 14:00:44,953 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 14:00:45,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 14:00:45,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 14:00:45,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 14:00:45,242 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 14:00:45,244 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 14:00:45,245 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkFork.c [2020-10-16 14:00:45,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9260654b/b771cf405f70425d804a4a740f138897/FLAG244868d6d [2020-10-16 14:00:45,744 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 14:00:45,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/concurrent/pthreads/forkFork.c [2020-10-16 14:00:45,745 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-16 14:00:45,745 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-16 14:00:45,787 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9260654b/b771cf405f70425d804a4a740f138897/FLAG244868d6d [2020-10-16 14:00:46,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9260654b/b771cf405f70425d804a4a740f138897 [2020-10-16 14:00:46,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 14:00:46,133 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 14:00:46,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 14:00:46,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 14:00:46,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 14:00:46,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:46" (1/1) ... [2020-10-16 14:00:46,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab0b8b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46, skipping insertion in model container [2020-10-16 14:00:46,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:46" (1/1) ... [2020-10-16 14:00:46,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 14:00:46,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 14:00:46,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 14:00:46,330 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 14:00:46,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 14:00:46,447 INFO L208 MainTranslator]: Completed translation [2020-10-16 14:00:46,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46 WrapperNode [2020-10-16 14:00:46,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 14:00:46,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 14:00:46,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 14:00:46,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 14:00:46,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46" (1/1) ... [2020-10-16 14:00:46,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46" (1/1) ... [2020-10-16 14:00:46,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 14:00:46,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 14:00:46,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 14:00:46,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 14:00:46,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46" (1/1) ... [2020-10-16 14:00:46,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46" (1/1) ... [2020-10-16 14:00:46,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46" (1/1) ... [2020-10-16 14:00:46,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46" (1/1) ... [2020-10-16 14:00:46,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46" (1/1) ... [2020-10-16 14:00:46,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46" (1/1) ... [2020-10-16 14:00:46,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46" (1/1) ... [2020-10-16 14:00:46,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 14:00:46,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 14:00:46,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 14:00:46,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 14:00:46,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 14:00:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-16 14:00:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 14:00:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2020-10-16 14:00:46,570 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2020-10-16 14:00:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-16 14:00:46,571 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-16 14:00:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 14:00:46,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 14:00:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 14:00:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 14:00:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-16 14:00:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 14:00:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 14:00:46,573 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 14:00:46,911 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 14:00:46,911 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-16 14:00:46,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:46 BoogieIcfgContainer [2020-10-16 14:00:46,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 14:00:46,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 14:00:46,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 14:00:46,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 14:00:46,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:00:46" (1/3) ... [2020-10-16 14:00:46,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69226c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:00:46, skipping insertion in model container [2020-10-16 14:00:46,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:46" (2/3) ... [2020-10-16 14:00:46,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69226c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:00:46, skipping insertion in model container [2020-10-16 14:00:46,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:46" (3/3) ... [2020-10-16 14:00:46,923 INFO L111 eAbstractionObserver]: Analyzing ICFG forkFork.c [2020-10-16 14:00:46,935 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 14:00:46,935 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 14:00:46,942 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 14:00:46,943 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 14:00:46,989 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,989 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,989 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,989 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,990 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,990 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,990 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,990 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,991 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,991 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,991 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,991 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,992 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,992 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,992 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,992 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,993 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,993 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,993 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,993 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,994 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,994 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,995 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,995 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,995 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,995 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,996 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,996 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,997 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,997 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,997 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,997 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,998 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,998 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,998 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,998 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,999 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,999 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,999 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:46,999 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,000 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,000 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,001 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,001 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,001 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,002 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,003 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,003 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,003 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,004 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,004 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,004 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,004 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,004 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,005 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,005 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,005 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,005 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,006 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,006 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,006 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,006 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,007 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,007 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,007 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,007 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,008 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,008 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,012 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,013 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,013 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,013 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,014 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,014 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,014 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,014 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,015 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,022 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,023 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,023 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,023 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,024 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,024 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,024 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,024 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,025 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,025 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,025 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,025 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,026 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,026 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,026 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,027 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,038 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,039 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,039 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,039 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,040 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,040 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,040 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,040 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,041 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:00:47,092 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-10-16 14:00:47,105 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 14:00:47,125 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 14:00:47,125 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 14:00:47,126 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 14:00:47,126 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 14:00:47,126 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 14:00:47,126 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 14:00:47,127 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 14:00:47,127 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 14:00:47,143 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 14:00:47,144 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 83 transitions, 194 flow [2020-10-16 14:00:47,146 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 83 transitions, 194 flow [2020-10-16 14:00:47,148 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 83 transitions, 194 flow [2020-10-16 14:00:47,216 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-16 14:00:47,217 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-16 14:00:47,222 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 89 events. 2/89 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 98. Up to 5 conditions per place. [2020-10-16 14:00:47,225 INFO L117 LiptonReduction]: Number of co-enabled transitions 334 [2020-10-16 14:00:48,469 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-16 14:00:48,609 INFO L132 LiptonReduction]: Checked pairs total: 1210 [2020-10-16 14:00:48,610 INFO L134 LiptonReduction]: Total number of compositions: 61 [2020-10-16 14:00:48,617 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 26 transitions, 80 flow [2020-10-16 14:00:48,629 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 56 states. [2020-10-16 14:00:48,632 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-10-16 14:00:48,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 14:00:48,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:00:48,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:00:48,641 INFO L429 AbstractCegarLoop]: === Iteration 1 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:00:48,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:00:48,647 INFO L82 PathProgramCache]: Analyzing trace with hash -149989621, now seen corresponding path program 1 times [2020-10-16 14:00:48,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:00:48,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064399450] [2020-10-16 14:00:48,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:00:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:00:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 14:00:48,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064399450] [2020-10-16 14:00:48,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:00:48,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 14:00:48,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1106692821] [2020-10-16 14:00:49,000 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:00:49,007 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:00:49,024 INFO L258 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-16 14:00:49,025 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:00:49,030 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 14:00:49,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 14:00:49,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:00:49,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 14:00:49,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-16 14:00:49,049 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 8 states. [2020-10-16 14:00:49,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:00:49,284 INFO L93 Difference]: Finished difference Result 50 states and 83 transitions. [2020-10-16 14:00:49,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 14:00:49,285 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2020-10-16 14:00:49,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:00:49,295 INFO L225 Difference]: With dead ends: 50 [2020-10-16 14:00:49,295 INFO L226 Difference]: Without dead ends: 47 [2020-10-16 14:00:49,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-16 14:00:49,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-16 14:00:49,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-16 14:00:49,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-16 14:00:49,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 79 transitions. [2020-10-16 14:00:49,335 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 79 transitions. Word has length 7 [2020-10-16 14:00:49,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:00:49,336 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 79 transitions. [2020-10-16 14:00:49,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 14:00:49,336 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2020-10-16 14:00:49,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 14:00:49,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:00:49,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:00:49,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 14:00:49,338 INFO L429 AbstractCegarLoop]: === Iteration 2 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:00:49,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:00:49,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1255807394, now seen corresponding path program 1 times [2020-10-16 14:00:49,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:00:49,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626579601] [2020-10-16 14:00:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:00:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:00:49,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 14:00:49,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626579601] [2020-10-16 14:00:49,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:00:49,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 14:00:49,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [704265908] [2020-10-16 14:00:49,524 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:00:49,527 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:00:49,533 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-10-16 14:00:49,534 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:00:49,600 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:49,608 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 14:00:49,611 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:49,617 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 14:00:49,617 INFO L513 ElimStorePlain]: Eliminatee |#memory_$Pointer$.base| vanished before elimination [2020-10-16 14:00:49,618 INFO L513 ElimStorePlain]: Eliminatee |#memory_$Pointer$.offset| vanished before elimination [2020-10-16 14:00:49,619 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 14:00:49,620 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:63, output treesize:31 [2020-10-16 14:00:49,621 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 14:00:49,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 14:00:49,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:00:49,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 14:00:49,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-16 14:00:49,624 INFO L87 Difference]: Start difference. First operand 47 states and 79 transitions. Second operand 10 states. [2020-10-16 14:00:50,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:00:50,037 INFO L93 Difference]: Finished difference Result 57 states and 91 transitions. [2020-10-16 14:00:50,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 14:00:50,038 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-10-16 14:00:50,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:00:50,039 INFO L225 Difference]: With dead ends: 57 [2020-10-16 14:00:50,040 INFO L226 Difference]: Without dead ends: 57 [2020-10-16 14:00:50,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-16 14:00:50,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-16 14:00:50,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2020-10-16 14:00:50,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-16 14:00:50,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 85 transitions. [2020-10-16 14:00:50,049 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 85 transitions. Word has length 12 [2020-10-16 14:00:50,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:00:50,050 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 85 transitions. [2020-10-16 14:00:50,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 14:00:50,050 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 85 transitions. [2020-10-16 14:00:50,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 14:00:50,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:00:50,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:00:50,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 14:00:50,051 INFO L429 AbstractCegarLoop]: === Iteration 3 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:00:50,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:00:50,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1573748830, now seen corresponding path program 2 times [2020-10-16 14:00:50,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:00:50,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136927192] [2020-10-16 14:00:50,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:00:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:00:50,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 14:00:50,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136927192] [2020-10-16 14:00:50,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:00:50,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 14:00:50,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [395220226] [2020-10-16 14:00:50,161 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:00:50,163 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:00:50,167 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-10-16 14:00:50,168 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:00:50,203 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:50,209 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 14:00:50,212 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:50,214 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 14:00:50,214 INFO L513 ElimStorePlain]: Eliminatee |#memory_$Pointer$.base| vanished before elimination [2020-10-16 14:00:50,215 INFO L513 ElimStorePlain]: Eliminatee |#memory_$Pointer$.offset| vanished before elimination [2020-10-16 14:00:50,215 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 14:00:50,216 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:48, output treesize:15 [2020-10-16 14:00:50,216 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [552#(not (= barThread1of1ForFork0_thidvar0 (select (select |#memory_int| |ULTIMATE.start_main_~#thread_id~0.base|) |ULTIMATE.start_main_~#thread_id~0.offset|)))] [2020-10-16 14:00:50,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 14:00:50,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:00:50,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 14:00:50,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-16 14:00:50,218 INFO L87 Difference]: Start difference. First operand 51 states and 85 transitions. Second operand 8 states. [2020-10-16 14:00:50,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:00:50,445 INFO L93 Difference]: Finished difference Result 50 states and 79 transitions. [2020-10-16 14:00:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 14:00:50,446 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-10-16 14:00:50,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:00:50,449 INFO L225 Difference]: With dead ends: 50 [2020-10-16 14:00:50,449 INFO L226 Difference]: Without dead ends: 50 [2020-10-16 14:00:50,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-16 14:00:50,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-16 14:00:50,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2020-10-16 14:00:50,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-16 14:00:50,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 68 transitions. [2020-10-16 14:00:50,457 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 68 transitions. Word has length 12 [2020-10-16 14:00:50,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:00:50,457 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 68 transitions. [2020-10-16 14:00:50,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 14:00:50,457 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 68 transitions. [2020-10-16 14:00:50,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 14:00:50,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:00:50,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:00:50,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 14:00:50,459 INFO L429 AbstractCegarLoop]: === Iteration 4 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:00:50,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:00:50,459 INFO L82 PathProgramCache]: Analyzing trace with hash 67837309, now seen corresponding path program 1 times [2020-10-16 14:00:50,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:00:50,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134888861] [2020-10-16 14:00:50,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:00:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:00:50,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 14:00:50,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134888861] [2020-10-16 14:00:50,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:00:50,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-16 14:00:50,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [604325529] [2020-10-16 14:00:50,806 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:00:50,811 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:00:50,818 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions. [2020-10-16 14:00:50,818 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:00:50,818 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 14:00:50,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-16 14:00:50,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:00:50,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-16 14:00:50,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-10-16 14:00:50,820 INFO L87 Difference]: Start difference. First operand 41 states and 68 transitions. Second operand 15 states. [2020-10-16 14:00:51,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:00:51,476 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2020-10-16 14:00:51,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-16 14:00:51,476 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 17 [2020-10-16 14:00:51,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:00:51,477 INFO L225 Difference]: With dead ends: 47 [2020-10-16 14:00:51,477 INFO L226 Difference]: Without dead ends: 39 [2020-10-16 14:00:51,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2020-10-16 14:00:51,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-16 14:00:51,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-16 14:00:51,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-16 14:00:51,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 64 transitions. [2020-10-16 14:00:51,482 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 64 transitions. Word has length 17 [2020-10-16 14:00:51,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:00:51,483 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 64 transitions. [2020-10-16 14:00:51,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-16 14:00:51,483 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 64 transitions. [2020-10-16 14:00:51,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 14:00:51,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:00:51,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:00:51,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 14:00:51,485 INFO L429 AbstractCegarLoop]: === Iteration 5 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:00:51,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:00:51,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1960936835, now seen corresponding path program 2 times [2020-10-16 14:00:51,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:00:51,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100241739] [2020-10-16 14:00:51,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:00:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:00:51,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 14:00:51,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100241739] [2020-10-16 14:00:51,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:00:51,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 14:00:51,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1638230181] [2020-10-16 14:00:51,741 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:00:51,744 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:00:51,752 INFO L258 McrAutomatonBuilder]: Finished intersection with 26 states and 33 transitions. [2020-10-16 14:00:51,752 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:00:51,755 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-16 14:00:51,776 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 14:00:51,780 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:51,783 INFO L545 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 14:00:51,795 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 14:00:51,797 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2020-10-16 14:00:51,797 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:70, output treesize:35 [2020-10-16 14:00:51,800 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 14:00:51,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 14:00:51,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:00:51,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 14:00:51,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-16 14:00:51,801 INFO L87 Difference]: Start difference. First operand 39 states and 64 transitions. Second operand 14 states. [2020-10-16 14:00:52,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:00:52,478 INFO L93 Difference]: Finished difference Result 47 states and 73 transitions. [2020-10-16 14:00:52,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-16 14:00:52,478 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-10-16 14:00:52,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:00:52,479 INFO L225 Difference]: With dead ends: 47 [2020-10-16 14:00:52,479 INFO L226 Difference]: Without dead ends: 38 [2020-10-16 14:00:52,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2020-10-16 14:00:52,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-16 14:00:52,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-16 14:00:52,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-16 14:00:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-10-16 14:00:52,491 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 17 [2020-10-16 14:00:52,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:00:52,491 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-10-16 14:00:52,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 14:00:52,492 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-10-16 14:00:52,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 14:00:52,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:00:52,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:00:52,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 14:00:52,493 INFO L429 AbstractCegarLoop]: === Iteration 6 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:00:52,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:00:52,494 INFO L82 PathProgramCache]: Analyzing trace with hash -430501265, now seen corresponding path program 3 times [2020-10-16 14:00:52,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:00:52,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938009180] [2020-10-16 14:00:52,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:00:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:00:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 14:00:52,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938009180] [2020-10-16 14:00:52,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:00:52,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 14:00:52,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [97609136] [2020-10-16 14:00:52,772 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:00:52,775 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:00:52,781 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-10-16 14:00:52,781 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:00:52,817 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-16 14:00:52,830 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:52,833 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:52,836 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:52,839 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:52,876 INFO L625 ElimStorePlain]: treesize reduction 64, result has 48.0 percent of original size [2020-10-16 14:00:52,879 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:52,881 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:52,891 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 14:00:52,892 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-10-16 14:00:52,893 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:187, output treesize:27 [2020-10-16 14:00:52,894 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1032#(and (not (= |ULTIMATE.start_main_~#ret_val~0.base| |barThread1of1ForFork0_#res.base|)) (<= (select (select |#memory_int| |barThread1of1ForFork0_#res.base|) |barThread1of1ForFork0_#res.offset|) 10) (<= 10 (select (select |#memory_int| |barThread1of1ForFork0_#res.base|) |barThread1of1ForFork0_#res.offset|)) (not (= |fooThread1of1ForFork1_~#ret~0.base| |barThread1of1ForFork0_#res.base|)))] [2020-10-16 14:00:52,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-16 14:00:52,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:00:52,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-16 14:00:52,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-16 14:00:52,895 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 15 states. [2020-10-16 14:00:53,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:00:53,584 INFO L93 Difference]: Finished difference Result 52 states and 82 transitions. [2020-10-16 14:00:53,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-16 14:00:53,584 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 17 [2020-10-16 14:00:53,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:00:53,585 INFO L225 Difference]: With dead ends: 52 [2020-10-16 14:00:53,586 INFO L226 Difference]: Without dead ends: 35 [2020-10-16 14:00:53,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=148, Invalid=554, Unknown=0, NotChecked=0, Total=702 [2020-10-16 14:00:53,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-16 14:00:53,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-16 14:00:53,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-16 14:00:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 54 transitions. [2020-10-16 14:00:53,593 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 54 transitions. Word has length 17 [2020-10-16 14:00:53,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:00:53,593 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 54 transitions. [2020-10-16 14:00:53,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-16 14:00:53,593 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2020-10-16 14:00:53,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 14:00:53,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:00:53,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:00:53,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 14:00:53,594 INFO L429 AbstractCegarLoop]: === Iteration 7 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:00:53,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:00:53,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1664064943, now seen corresponding path program 4 times [2020-10-16 14:00:53,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:00:53,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171639799] [2020-10-16 14:00:53,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:00:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:00:53,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 14:00:53,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171639799] [2020-10-16 14:00:53,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:00:53,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 14:00:53,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1104699750] [2020-10-16 14:00:53,870 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:00:53,872 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:00:53,877 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 27 transitions. [2020-10-16 14:00:53,877 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:00:53,909 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:53,912 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:53,921 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 14:00:53,924 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:53,925 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-16 14:00:53,928 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 14:00:53,929 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-16 14:00:53,929 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:75, output treesize:9 [2020-10-16 14:00:53,929 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1193#(and (not (= fooThread1of1ForFork1_~param~0.base |fooThread1of1ForFork1_~#ret~0.base|)) (not (= fooThread1of1ForFork1_~param~0.base |ULTIMATE.start_main_~#ret_val~0.base|)))] [2020-10-16 14:00:53,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-16 14:00:53,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:00:53,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-16 14:00:53,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-16 14:00:53,931 INFO L87 Difference]: Start difference. First operand 35 states and 54 transitions. Second operand 15 states. [2020-10-16 14:00:54,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:00:54,622 INFO L93 Difference]: Finished difference Result 57 states and 88 transitions. [2020-10-16 14:00:54,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-16 14:00:54,622 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 17 [2020-10-16 14:00:54,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:00:54,623 INFO L225 Difference]: With dead ends: 57 [2020-10-16 14:00:54,623 INFO L226 Difference]: Without dead ends: 31 [2020-10-16 14:00:54,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2020-10-16 14:00:54,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-16 14:00:54,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-16 14:00:54,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-16 14:00:54,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 46 transitions. [2020-10-16 14:00:54,628 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 46 transitions. Word has length 17 [2020-10-16 14:00:54,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:00:54,628 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 46 transitions. [2020-10-16 14:00:54,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-16 14:00:54,628 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2020-10-16 14:00:54,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 14:00:54,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:00:54,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:00:54,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 14:00:54,630 INFO L429 AbstractCegarLoop]: === Iteration 8 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:00:54,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:00:54,630 INFO L82 PathProgramCache]: Analyzing trace with hash -211343889, now seen corresponding path program 5 times [2020-10-16 14:00:54,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:00:54,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985798445] [2020-10-16 14:00:54,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:00:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:00:54,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 14:00:54,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985798445] [2020-10-16 14:00:54,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:00:54,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 14:00:54,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1485707262] [2020-10-16 14:00:54,854 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:00:54,856 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:00:54,859 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 19 transitions. [2020-10-16 14:00:54,859 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:00:54,861 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 14:00:54,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 14:00:54,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:00:54,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 14:00:54,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-16 14:00:54,862 INFO L87 Difference]: Start difference. First operand 31 states and 46 transitions. Second operand 14 states. [2020-10-16 14:00:55,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:00:55,413 INFO L93 Difference]: Finished difference Result 55 states and 83 transitions. [2020-10-16 14:00:55,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-16 14:00:55,413 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-10-16 14:00:55,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:00:55,414 INFO L225 Difference]: With dead ends: 55 [2020-10-16 14:00:55,414 INFO L226 Difference]: Without dead ends: 30 [2020-10-16 14:00:55,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=469, Unknown=0, NotChecked=0, Total=600 [2020-10-16 14:00:55,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-16 14:00:55,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-16 14:00:55,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-16 14:00:55,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-16 14:00:55,418 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-16 14:00:55,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:00:55,418 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-16 14:00:55,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 14:00:55,419 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-16 14:00:55,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 14:00:55,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:00:55,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:00:55,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 14:00:55,420 INFO L429 AbstractCegarLoop]: === Iteration 9 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:00:55,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:00:55,420 INFO L82 PathProgramCache]: Analyzing trace with hash 57402539, now seen corresponding path program 6 times [2020-10-16 14:00:55,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:00:55,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980660457] [2020-10-16 14:00:55,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:00:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:00:55,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 14:00:55,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980660457] [2020-10-16 14:00:55,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:00:55,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 14:00:55,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [24723028] [2020-10-16 14:00:55,672 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:00:55,674 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:00:55,677 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 21 transitions. [2020-10-16 14:00:55,677 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:00:55,683 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-16 14:00:55,692 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 14:00:55,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 14:00:55,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:00:55,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 14:00:55,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-16 14:00:55,693 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 14 states. [2020-10-16 14:00:56,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:00:56,219 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-16 14:00:56,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-16 14:00:56,220 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-10-16 14:00:56,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:00:56,220 INFO L225 Difference]: With dead ends: 29 [2020-10-16 14:00:56,220 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 14:00:56,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=469, Unknown=0, NotChecked=0, Total=600 [2020-10-16 14:00:56,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 14:00:56,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 14:00:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 14:00:56,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 14:00:56,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-16 14:00:56,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:00:56,222 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 14:00:56,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 14:00:56,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 14:00:56,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 14:00:56,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 14:00:56,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:00:56 BasicIcfg [2020-10-16 14:00:56,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 14:00:56,231 INFO L168 Benchmark]: Toolchain (without parser) took 10097.48 ms. Allocated memory was 140.0 MB in the beginning and 331.9 MB in the end (delta: 191.9 MB). Free memory was 101.4 MB in the beginning and 194.7 MB in the end (delta: -93.2 MB). Peak memory consumption was 98.7 MB. Max. memory is 7.1 GB. [2020-10-16 14:00:56,231 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 14:00:56,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.01 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.2 MB in the beginning and 181.9 MB in the end (delta: -80.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-16 14:00:56,239 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.18 ms. Allocated memory is still 203.4 MB. Free memory was 181.2 MB in the beginning and 179.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-10-16 14:00:56,241 INFO L168 Benchmark]: Boogie Preprocessor took 21.93 ms. Allocated memory is still 203.4 MB. Free memory was 179.5 MB in the beginning and 178.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 14:00:56,243 INFO L168 Benchmark]: RCFGBuilder took 396.86 ms. Allocated memory is still 203.4 MB. Free memory was 178.1 MB in the beginning and 155.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-16 14:00:56,245 INFO L168 Benchmark]: TraceAbstraction took 9314.04 ms. Allocated memory was 203.4 MB in the beginning and 331.9 MB in the end (delta: 128.5 MB). Free memory was 155.6 MB in the beginning and 194.7 MB in the end (delta: -39.1 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. [2020-10-16 14:00:56,255 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 315.01 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.2 MB in the beginning and 181.9 MB in the end (delta: -80.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.18 ms. Allocated memory is still 203.4 MB. Free memory was 181.2 MB in the beginning and 179.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.93 ms. Allocated memory is still 203.4 MB. Free memory was 179.5 MB in the beginning and 178.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 396.86 ms. Allocated memory is still 203.4 MB. Free memory was 178.1 MB in the beginning and 155.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9314.04 ms. Allocated memory was 203.4 MB in the beginning and 331.9 MB in the end (delta: 128.5 MB). Free memory was 155.6 MB in the beginning and 194.7 MB in the end (delta: -39.1 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 169 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 20 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 89 PlacesBefore, 30 PlacesAfterwards, 83 TransitionsBefore, 26 TransitionsAfterwards, 334 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 61 TotalNumberOfCompositions, 1210 MoverChecksTotal - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 69 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 82 SDtfs, 413 SDslu, 188 SDs, 0 SdLazy, 1945 SolverSat, 217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 29035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 correct! Received shutdown request...