/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/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 14:01:08,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 14:01:08,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 14:01:08,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 14:01:08,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 14:01:08,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 14:01:08,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 14:01:08,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 14:01:08,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 14:01:08,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 14:01:08,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 14:01:08,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 14:01:08,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 14:01:08,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 14:01:08,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 14:01:08,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 14:01:08,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 14:01:08,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 14:01:08,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 14:01:08,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 14:01:08,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 14:01:08,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 14:01:08,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 14:01:08,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 14:01:08,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 14:01:08,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 14:01:08,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 14:01:08,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 14:01:08,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 14:01:08,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 14:01:08,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 14:01:08,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 14:01:08,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 14:01:08,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 14:01:08,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 14:01:08,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 14:01:08,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 14:01:08,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 14:01:08,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 14:01:08,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 14:01:08,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 14:01:08,960 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 14:01:08,999 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 14:01:09,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 14:01:09,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 14:01:09,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 14:01:09,002 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 14:01:09,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 14:01:09,003 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 14:01:09,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 14:01:09,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 14:01:09,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 14:01:09,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 14:01:09,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 14:01:09,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 14:01:09,005 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 14:01:09,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 14:01:09,005 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 14:01:09,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 14:01:09,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 14:01:09,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 14:01:09,006 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 14:01:09,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 14:01:09,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 14:01:09,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 14:01:09,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 14:01:09,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 14:01:09,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 14:01:09,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 14:01:09,008 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 14:01:09,008 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 14:01:09,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 14:01:09,009 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 14:01:09,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 14:01:09,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 14:01:09,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 14:01:09,357 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 14:01:09,360 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 14:01:09,361 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-10-16 14:01:09,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a5dcb07b/79dedaac240d40648c9f00c77ab0ca68/FLAG37b6881bc [2020-10-16 14:01:09,826 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 14:01:09,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-10-16 14:01:09,827 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-16 14:01:09,827 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-16 14:01:09,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a5dcb07b/79dedaac240d40648c9f00c77ab0ca68/FLAG37b6881bc [2020-10-16 14:01:10,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a5dcb07b/79dedaac240d40648c9f00c77ab0ca68 [2020-10-16 14:01:10,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 14:01:10,214 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 14:01:10,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 14:01:10,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 14:01:10,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 14:01:10,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:01:10" (1/1) ... [2020-10-16 14:01:10,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1879ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10, skipping insertion in model container [2020-10-16 14:01:10,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:01:10" (1/1) ... [2020-10-16 14:01:10,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 14:01:10,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 14:01:10,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 14:01:10,443 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 14:01:10,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 14:01:10,560 INFO L208 MainTranslator]: Completed translation [2020-10-16 14:01:10,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10 WrapperNode [2020-10-16 14:01:10,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 14:01:10,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 14:01:10,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 14:01:10,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 14:01:10,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10" (1/1) ... [2020-10-16 14:01:10,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10" (1/1) ... [2020-10-16 14:01:10,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 14:01:10,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 14:01:10,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 14:01:10,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 14:01:10,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10" (1/1) ... [2020-10-16 14:01:10,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10" (1/1) ... [2020-10-16 14:01:10,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10" (1/1) ... [2020-10-16 14:01:10,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10" (1/1) ... [2020-10-16 14:01:10,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10" (1/1) ... [2020-10-16 14:01:10,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10" (1/1) ... [2020-10-16 14:01:10,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10" (1/1) ... [2020-10-16 14:01:10,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 14:01:10,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 14:01:10,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 14:01:10,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 14:01:10,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10" (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 14:01:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 14:01:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-16 14:01:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-16 14:01:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 14:01:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 14:01:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 14:01:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 14:01:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 14:01:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 14:01:10,736 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 14:01:10,982 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 14:01:10,982 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-16 14:01:10,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:01:10 BoogieIcfgContainer [2020-10-16 14:01:10,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 14:01:10,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 14:01:10,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 14:01:10,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 14:01:10,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:01:10" (1/3) ... [2020-10-16 14:01:10,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb67ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:01:10, skipping insertion in model container [2020-10-16 14:01:10,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:01:10" (2/3) ... [2020-10-16 14:01:10,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb67ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:01:10, skipping insertion in model container [2020-10-16 14:01:10,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:01:10" (3/3) ... [2020-10-16 14:01:10,994 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2020-10-16 14:01:11,010 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 14:01:11,010 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 14:01:11,022 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 14:01:11,023 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 14:01:11,062 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,063 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,063 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,063 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,063 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,064 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,064 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,064 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,064 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,065 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,065 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,065 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,065 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,066 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,066 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,067 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,067 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,067 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,068 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,068 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,068 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,069 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,069 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,069 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,070 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,070 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,070 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,070 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,071 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,071 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,071 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,072 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,072 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,072 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,073 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,073 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,073 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,073 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,074 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,074 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,075 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,075 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,075 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,075 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,076 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,084 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,084 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,084 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,084 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,085 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,085 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,085 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,093 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,094 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,094 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,094 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,095 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,095 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,095 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,100 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,100 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,101 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,101 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,101 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,102 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,102 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 14:01:11,129 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-10-16 14:01:11,145 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 14:01:11,172 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 14:01:11,173 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 14:01:11,173 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 14:01:11,173 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 14:01:11,173 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 14:01:11,173 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 14:01:11,174 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 14:01:11,174 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 14:01:11,190 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 14:01:11,191 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 77 transitions, 196 flow [2020-10-16 14:01:11,193 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 77 transitions, 196 flow [2020-10-16 14:01:11,194 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 196 flow [2020-10-16 14:01:11,263 INFO L129 PetriNetUnfolder]: 5/85 cut-off events. [2020-10-16 14:01:11,263 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-16 14:01:11,272 INFO L80 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 85 events. 5/85 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2020-10-16 14:01:11,280 INFO L117 LiptonReduction]: Number of co-enabled transitions 1008 [2020-10-16 14:01:12,558 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-10-16 14:01:12,690 INFO L132 LiptonReduction]: Checked pairs total: 4010 [2020-10-16 14:01:12,691 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-16 14:01:12,699 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 112 flow [2020-10-16 14:01:12,731 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 354 states. [2020-10-16 14:01:12,734 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-10-16 14:01:12,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 14:01:12,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:01:12,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:01:12,751 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:01:12,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:01:12,758 INFO L82 PathProgramCache]: Analyzing trace with hash -126150362, now seen corresponding path program 1 times [2020-10-16 14:01:12,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:01:12,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032174355] [2020-10-16 14:01:12,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:01:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:01:13,454 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 14:01:13,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032174355] [2020-10-16 14:01:13,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:01:13,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 14:01:13,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [951657418] [2020-10-16 14:01:13,458 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:01:13,466 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:01:13,500 INFO L258 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions. [2020-10-16 14:01:13,500 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:01:13,784 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [804#(not (or (and (= |fooThread1of1ForFork1_#t~pre0| fooThread1of1ForFork0_thidvar0) (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| fooThread1of1ForFork1_~x~0.offset)) (and (not (and (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| fooThread1of1ForFork1_~x~0.offset))) (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)))), 805#(and (not (= (+ ~counter~0 1) 0)) (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|))) (and (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork1_#in~n.offset|) (= fooThread1of1ForFork0_thidvar0 0)))), 806#(and (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|))) (and (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork1_#in~n.offset|) (= fooThread1of1ForFork0_thidvar0 0))) (not (= (+ ~counter~0 1) 0))), 807#(and (not (= (+ ~counter~0 1) 0)) (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|))) (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|)) (or (not (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|)) (and (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork1_#in~n.offset|) (= fooThread1of1ForFork0_thidvar0 0))))] [2020-10-16 14:01:13,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-16 14:01:13,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:01:13,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-16 14:01:13,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-16 14:01:13,803 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 16 states. [2020-10-16 14:01:14,382 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2020-10-16 14:01:14,874 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 37 [2020-10-16 14:01:15,833 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-16 14:01:16,275 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2020-10-16 14:01:16,526 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-10-16 14:01:17,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:01:17,272 INFO L93 Difference]: Finished difference Result 733 states and 1844 transitions. [2020-10-16 14:01:17,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-16 14:01:17,274 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 25 [2020-10-16 14:01:17,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:01:17,297 INFO L225 Difference]: With dead ends: 733 [2020-10-16 14:01:17,297 INFO L226 Difference]: Without dead ends: 725 [2020-10-16 14:01:17,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=413, Invalid=1567, Unknown=0, NotChecked=0, Total=1980 [2020-10-16 14:01:17,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2020-10-16 14:01:17,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 448. [2020-10-16 14:01:17,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-10-16 14:01:17,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 1123 transitions. [2020-10-16 14:01:17,392 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 1123 transitions. Word has length 25 [2020-10-16 14:01:17,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:01:17,394 INFO L481 AbstractCegarLoop]: Abstraction has 448 states and 1123 transitions. [2020-10-16 14:01:17,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-16 14:01:17,394 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 1123 transitions. [2020-10-16 14:01:17,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 14:01:17,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:01:17,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:01:17,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 14:01:17,403 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:01:17,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:01:17,404 INFO L82 PathProgramCache]: Analyzing trace with hash -63589262, now seen corresponding path program 2 times [2020-10-16 14:01:17,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:01:17,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032657482] [2020-10-16 14:01:17,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:01:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:01:17,963 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 14:01:17,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032657482] [2020-10-16 14:01:17,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:01:17,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-16 14:01:17,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1587904770] [2020-10-16 14:01:17,965 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:01:17,970 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:01:17,981 INFO L258 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions. [2020-10-16 14:01:17,982 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:01:18,584 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [2511#(and (not (or (and (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (and (= (+ ~counter~0 1) fooThread1of1ForFork0_thidvar0) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)))) (or (and (= fooThread1of1ForFork0_thidvar0 0) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork0_#in~n.offset|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)))), 2512#(and (= ~counter~0 0) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (and (or (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)) (or (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0))))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)) (= fooThread1of1ForFork0_thidvar0 0) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork0_#in~n.offset|)), 2513#(and (= ~counter~0 0) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)) (= fooThread1of1ForFork0_thidvar0 0) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork0_#in~n.offset|) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork2_#in~n.base|)))), 2514#(and (= ~counter~0 0) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)) (= fooThread1of1ForFork0_thidvar0 0) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork0_#in~n.offset|) (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork0_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)))] [2020-10-16 14:01:18,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 14:01:18,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:01:18,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 14:01:18,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2020-10-16 14:01:18,587 INFO L87 Difference]: Start difference. First operand 448 states and 1123 transitions. Second operand 20 states. [2020-10-16 14:01:19,821 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2020-10-16 14:01:19,976 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2020-10-16 14:01:20,592 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-10-16 14:01:22,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:01:22,661 INFO L93 Difference]: Finished difference Result 1190 states and 2990 transitions. [2020-10-16 14:01:22,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-16 14:01:22,662 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 25 [2020-10-16 14:01:22,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:01:22,672 INFO L225 Difference]: With dead ends: 1190 [2020-10-16 14:01:22,672 INFO L226 Difference]: Without dead ends: 1181 [2020-10-16 14:01:22,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 11 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=491, Invalid=2371, Unknown=0, NotChecked=0, Total=2862 [2020-10-16 14:01:22,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2020-10-16 14:01:22,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 528. [2020-10-16 14:01:22,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-16 14:01:22,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1306 transitions. [2020-10-16 14:01:22,712 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1306 transitions. Word has length 25 [2020-10-16 14:01:22,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:01:22,712 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 1306 transitions. [2020-10-16 14:01:22,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 14:01:22,713 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1306 transitions. [2020-10-16 14:01:22,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 14:01:22,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:01:22,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:01:22,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 14:01:22,716 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:01:22,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:01:22,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1895995450, now seen corresponding path program 1 times [2020-10-16 14:01:22,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:01:22,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464015812] [2020-10-16 14:01:22,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:01:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:01:23,232 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 14:01:23,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464015812] [2020-10-16 14:01:23,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:01:23,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 14:01:23,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1725790182] [2020-10-16 14:01:23,234 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:01:23,238 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:01:23,246 INFO L258 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions. [2020-10-16 14:01:23,246 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:01:23,509 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [4842#(not (or (and (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0) (not (and (= |ULTIMATE.start_main_~#second_thread_id~0.base| fooThread1of1ForFork1_~x~0.base) (= |ULTIMATE.start_main_~#second_thread_id~0.offset| fooThread1of1ForFork1_~x~0.offset)))) (and (= |ULTIMATE.start_main_~#second_thread_id~0.base| fooThread1of1ForFork1_~x~0.base) (= |fooThread1of1ForFork1_#t~pre0| fooThread1of1ForFork0_thidvar0) (= |ULTIMATE.start_main_~#second_thread_id~0.offset| fooThread1of1ForFork1_~x~0.offset)))), 4843#(and (or (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (and (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (= fooThread1of1ForFork0_thidvar0 0) (= |fooThread1of1ForFork1_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|))) (not (= (+ ~counter~0 1) 0)) (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|))), 4844#(and (not (= (+ ~counter~0 1) 0)) (or (and (= fooThread1of1ForFork0_thidvar0 0) (= |fooThread1of1ForFork1_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|)) (not (= |fooThread1of1ForFork2_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (= |fooThread1of1ForFork1_#in~n.base| |fooThread1of1ForFork2_#in~n.base|) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |fooThread1of1ForFork2_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))), 4845#(and (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= (+ ~counter~0 1) 0)) (or (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (and (= fooThread1of1ForFork0_thidvar0 0) (= |fooThread1of1ForFork1_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|))) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork1_#in~n.base|))] [2020-10-16 14:01:23,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-16 14:01:23,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:01:23,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-16 14:01:23,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-10-16 14:01:23,511 INFO L87 Difference]: Start difference. First operand 528 states and 1306 transitions. Second operand 17 states. [2020-10-16 14:01:26,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:01:26,376 INFO L93 Difference]: Finished difference Result 664 states and 1664 transitions. [2020-10-16 14:01:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-16 14:01:26,379 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 25 [2020-10-16 14:01:26,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:01:26,383 INFO L225 Difference]: With dead ends: 664 [2020-10-16 14:01:26,384 INFO L226 Difference]: Without dead ends: 656 [2020-10-16 14:01:26,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=431, Invalid=1639, Unknown=0, NotChecked=0, Total=2070 [2020-10-16 14:01:26,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2020-10-16 14:01:26,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 587. [2020-10-16 14:01:26,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-10-16 14:01:26,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 1451 transitions. [2020-10-16 14:01:26,406 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 1451 transitions. Word has length 25 [2020-10-16 14:01:26,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:01:26,406 INFO L481 AbstractCegarLoop]: Abstraction has 587 states and 1451 transitions. [2020-10-16 14:01:26,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-16 14:01:26,407 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 1451 transitions. [2020-10-16 14:01:26,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 14:01:26,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:01:26,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:01:26,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 14:01:26,409 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:01:26,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:01:26,410 INFO L82 PathProgramCache]: Analyzing trace with hash 374980096, now seen corresponding path program 2 times [2020-10-16 14:01:26,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:01:26,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146144294] [2020-10-16 14:01:26,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:01:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:01:26,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 14:01:26,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146144294] [2020-10-16 14:01:26,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:01:26,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-16 14:01:26,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [653886503] [2020-10-16 14:01:26,964 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:01:26,968 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:01:26,978 INFO L258 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions. [2020-10-16 14:01:26,978 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:01:27,418 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [6759#(and (not (and (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0) (not (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)))) (or (and (= |fooThread1of1ForFork0_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|) (= fooThread1of1ForFork0_thidvar0 0)) (not (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (not (= (+ ~counter~0 1) 0))), 6760#(and (= ~counter~0 0) (= |fooThread1of1ForFork0_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|) (or (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (and (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (or (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|))))) (= fooThread1of1ForFork0_thidvar0 0) (or (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)))), 6761#(and (= ~counter~0 0) (= |fooThread1of1ForFork0_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|) (= fooThread1of1ForFork0_thidvar0 0) (or (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork2_#in~n.base|)))), 6762#(and (or (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork0_#in~n.base|))) (= ~counter~0 0) (= |fooThread1of1ForFork0_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|) (= fooThread1of1ForFork0_thidvar0 0) (or (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))))] [2020-10-16 14:01:27,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-16 14:01:27,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:01:27,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-16 14:01:27,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2020-10-16 14:01:27,419 INFO L87 Difference]: Start difference. First operand 587 states and 1451 transitions. Second operand 21 states. [2020-10-16 14:01:28,832 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-10-16 14:01:28,998 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-10-16 14:01:29,724 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-16 14:01:32,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:01:32,001 INFO L93 Difference]: Finished difference Result 1332 states and 3276 transitions. [2020-10-16 14:01:32,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-16 14:01:32,002 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 25 [2020-10-16 14:01:32,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:01:32,011 INFO L225 Difference]: With dead ends: 1332 [2020-10-16 14:01:32,011 INFO L226 Difference]: Without dead ends: 1314 [2020-10-16 14:01:32,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=574, Invalid=2966, Unknown=0, NotChecked=0, Total=3540 [2020-10-16 14:01:32,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-10-16 14:01:32,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 677. [2020-10-16 14:01:32,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-10-16 14:01:32,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 1695 transitions. [2020-10-16 14:01:32,041 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 1695 transitions. Word has length 25 [2020-10-16 14:01:32,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:01:32,042 INFO L481 AbstractCegarLoop]: Abstraction has 677 states and 1695 transitions. [2020-10-16 14:01:32,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-16 14:01:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 1695 transitions. [2020-10-16 14:01:32,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 14:01:32,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:01:32,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:01:32,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 14:01:32,044 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:01:32,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:01:32,045 INFO L82 PathProgramCache]: Analyzing trace with hash 284319048, now seen corresponding path program 1 times [2020-10-16 14:01:32,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:01:32,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308299639] [2020-10-16 14:01:32,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:01:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:01:32,167 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 14:01:32,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308299639] [2020-10-16 14:01:32,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:01:32,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 14:01:32,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1008290480] [2020-10-16 14:01:32,169 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:01:32,173 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:01:32,181 INFO L258 McrAutomatonBuilder]: Finished intersection with 36 states and 45 transitions. [2020-10-16 14:01:32,182 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:01:32,220 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 14:01:32,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 14:01:32,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:01:32,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 14:01:32,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-16 14:01:32,222 INFO L87 Difference]: Start difference. First operand 677 states and 1695 transitions. Second operand 8 states. [2020-10-16 14:01:32,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:01:32,390 INFO L93 Difference]: Finished difference Result 836 states and 2041 transitions. [2020-10-16 14:01:32,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 14:01:32,391 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-16 14:01:32,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:01:32,395 INFO L225 Difference]: With dead ends: 836 [2020-10-16 14:01:32,396 INFO L226 Difference]: Without dead ends: 697 [2020-10-16 14:01:32,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-16 14:01:32,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-16 14:01:32,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 648. [2020-10-16 14:01:32,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-10-16 14:01:32,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1620 transitions. [2020-10-16 14:01:32,415 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1620 transitions. Word has length 25 [2020-10-16 14:01:32,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:01:32,416 INFO L481 AbstractCegarLoop]: Abstraction has 648 states and 1620 transitions. [2020-10-16 14:01:32,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 14:01:32,416 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1620 transitions. [2020-10-16 14:01:32,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 14:01:32,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:01:32,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:01:32,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 14:01:32,418 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:01:32,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:01:32,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1342328380, now seen corresponding path program 1 times [2020-10-16 14:01:32,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:01:32,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318960880] [2020-10-16 14:01:32,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:01:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:01:32,926 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 14:01:32,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318960880] [2020-10-16 14:01:32,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:01:32,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-16 14:01:32,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1645304871] [2020-10-16 14:01:32,928 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:01:32,931 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:01:32,940 INFO L258 McrAutomatonBuilder]: Finished intersection with 44 states and 61 transitions. [2020-10-16 14:01:32,940 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:01:33,238 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [11683#(and (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|)) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork1_#in~n.base|))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (and (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork1_#in~n.offset|) (not (= (+ ~counter~0 1) 0)) (= fooThread1of1ForFork0_thidvar0 0)))), 11684#(and (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (= |fooThread1of1ForFork1_#in~n.base| |fooThread1of1ForFork2_#in~n.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork1_#in~n.base|))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (and (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork1_#in~n.offset|) (not (= (+ ~counter~0 1) 0)) (= fooThread1of1ForFork0_thidvar0 0)))), 11685#(and (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork1_#in~n.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork1_#in~n.base|))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (and (= |ULTIMATE.start_main_~#third_thread_id~0.offset| |fooThread1of1ForFork1_#in~n.offset|) (not (= (+ ~counter~0 1) 0)) (= fooThread1of1ForFork0_thidvar0 0)))), 11686#(and (or (and (not (= |fooThread1of1ForFork1_#t~pre0| 0)) (= fooThread1of1ForFork0_thidvar0 0) (= |ULTIMATE.start_main_~#third_thread_id~0.offset| fooThread1of1ForFork1_~x~0.offset)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base))) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)))))] [2020-10-16 14:01:33,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-16 14:01:33,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:01:33,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-16 14:01:33,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-16 14:01:33,241 INFO L87 Difference]: Start difference. First operand 648 states and 1620 transitions. Second operand 18 states. [2020-10-16 14:01:35,237 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2020-10-16 14:01:35,834 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-10-16 14:01:36,061 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-10-16 14:01:36,393 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-10-16 14:01:36,918 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-16 14:01:37,164 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-10-16 14:01:37,470 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2020-10-16 14:01:37,871 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-16 14:01:38,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:01:38,511 INFO L93 Difference]: Finished difference Result 1071 states and 2696 transitions. [2020-10-16 14:01:38,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-16 14:01:38,511 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 25 [2020-10-16 14:01:38,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:01:38,519 INFO L225 Difference]: With dead ends: 1071 [2020-10-16 14:01:38,519 INFO L226 Difference]: Without dead ends: 1065 [2020-10-16 14:01:38,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=873, Invalid=3417, Unknown=0, NotChecked=0, Total=4290 [2020-10-16 14:01:38,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2020-10-16 14:01:38,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 694. [2020-10-16 14:01:38,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2020-10-16 14:01:38,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1768 transitions. [2020-10-16 14:01:38,542 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1768 transitions. Word has length 25 [2020-10-16 14:01:38,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:01:38,542 INFO L481 AbstractCegarLoop]: Abstraction has 694 states and 1768 transitions. [2020-10-16 14:01:38,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-16 14:01:38,543 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1768 transitions. [2020-10-16 14:01:38,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 14:01:38,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:01:38,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:01:38,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 14:01:38,545 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:01:38,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:01:38,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1285072000, now seen corresponding path program 1 times [2020-10-16 14:01:38,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:01:38,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107713672] [2020-10-16 14:01:38,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:01:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:01:38,923 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 14:01:38,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107713672] [2020-10-16 14:01:38,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:01:38,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-16 14:01:38,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [451106291] [2020-10-16 14:01:38,924 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:01:38,927 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:01:38,934 INFO L258 McrAutomatonBuilder]: Finished intersection with 46 states and 65 transitions. [2020-10-16 14:01:38,934 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:01:39,375 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [14259#(and (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|))) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|))) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (and (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork1_#in~n.base|)))), 14260#(and (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork1_#in~n.base|) (= |fooThread1of1ForFork1_#in~n.base| |fooThread1of1ForFork2_#in~n.base|))) (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |fooThread1of1ForFork2_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)))), 14261#(and (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork1_#in~n.base|) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork1_#in~n.base|))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|)))), 14262#(and (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (or (not (= |ULTIMATE.start_main_#t~mem5| fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)))), 14263#(and (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base))))] [2020-10-16 14:01:39,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-16 14:01:39,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:01:39,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-16 14:01:39,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2020-10-16 14:01:39,377 INFO L87 Difference]: Start difference. First operand 694 states and 1768 transitions. Second operand 22 states. [2020-10-16 14:01:40,017 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2020-10-16 14:01:40,526 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2020-10-16 14:01:40,676 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 36 [2020-10-16 14:01:40,836 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-10-16 14:01:41,185 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 44 [2020-10-16 14:01:41,372 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 38 [2020-10-16 14:01:41,554 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-16 14:01:41,981 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2020-10-16 14:01:42,246 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2020-10-16 14:01:42,464 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2020-10-16 14:01:42,634 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-16 14:01:42,762 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37 [2020-10-16 14:01:42,999 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2020-10-16 14:01:43,293 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2020-10-16 14:01:43,495 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2020-10-16 14:01:43,772 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2020-10-16 14:01:44,081 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 42 [2020-10-16 14:01:44,258 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2020-10-16 14:01:44,754 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-10-16 14:01:45,120 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2020-10-16 14:01:45,352 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 46 [2020-10-16 14:01:45,523 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-10-16 14:01:45,667 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-10-16 14:01:45,928 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2020-10-16 14:01:46,190 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-10-16 14:01:46,341 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 37 [2020-10-16 14:01:46,793 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 53 [2020-10-16 14:01:46,978 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-10-16 14:01:47,272 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-16 14:01:47,557 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2020-10-16 14:01:47,776 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2020-10-16 14:01:48,179 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-10-16 14:01:48,452 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-10-16 14:01:48,648 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 38 [2020-10-16 14:01:48,809 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 38 [2020-10-16 14:01:49,158 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 45 [2020-10-16 14:01:49,293 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 34 [2020-10-16 14:01:49,502 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2020-10-16 14:01:49,676 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2020-10-16 14:01:50,005 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 41 [2020-10-16 14:01:50,143 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2020-10-16 14:01:50,413 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2020-10-16 14:01:50,759 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44 [2020-10-16 14:01:50,909 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-10-16 14:01:51,090 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 43 [2020-10-16 14:01:51,551 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2020-10-16 14:01:51,690 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2020-10-16 14:01:51,925 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2020-10-16 14:01:52,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:01:52,055 INFO L93 Difference]: Finished difference Result 1396 states and 3158 transitions. [2020-10-16 14:01:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-10-16 14:01:52,055 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 25 [2020-10-16 14:01:52,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:01:52,063 INFO L225 Difference]: With dead ends: 1396 [2020-10-16 14:01:52,064 INFO L226 Difference]: Without dead ends: 1373 [2020-10-16 14:01:52,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2619 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=1487, Invalid=7443, Unknown=0, NotChecked=0, Total=8930 [2020-10-16 14:01:52,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2020-10-16 14:01:52,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 802. [2020-10-16 14:01:52,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2020-10-16 14:01:52,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 2022 transitions. [2020-10-16 14:01:52,095 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 2022 transitions. Word has length 25 [2020-10-16 14:01:52,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:01:52,095 INFO L481 AbstractCegarLoop]: Abstraction has 802 states and 2022 transitions. [2020-10-16 14:01:52,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-16 14:01:52,095 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 2022 transitions. [2020-10-16 14:01:52,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 14:01:52,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:01:52,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:01:52,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 14:01:52,098 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:01:52,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:01:52,098 INFO L82 PathProgramCache]: Analyzing trace with hash -421440302, now seen corresponding path program 2 times [2020-10-16 14:01:52,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:01:52,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771036017] [2020-10-16 14:01:52,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:01:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:01:52,459 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 14:01:52,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771036017] [2020-10-16 14:01:52,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:01:52,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-16 14:01:52,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1796616553] [2020-10-16 14:01:52,461 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:01:52,464 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:01:52,476 INFO L258 McrAutomatonBuilder]: Finished intersection with 46 states and 65 transitions. [2020-10-16 14:01:52,477 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:01:52,935 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [17427#(or (not (= |ULTIMATE.start_main_#t~mem5| fooThread1of1ForFork0_thidvar0)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))), 17428#(and (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (or (not (= |ULTIMATE.start_main_#t~mem5| fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)))), 17429#(and (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base))) (or (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)))), 17430#(and (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|))) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|))) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (and (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork1_#in~n.base|)))), 17431#(and (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork1_#in~n.base|) (= |fooThread1of1ForFork1_#in~n.base| |fooThread1of1ForFork2_#in~n.base|))) (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |fooThread1of1ForFork2_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)))), 17432#(and (or (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (= |fooThread1of1ForFork0_#in~n.base| |fooThread1of1ForFork1_#in~n.base|) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork1_#in~n.base|))) (or (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|))))] [2020-10-16 14:01:52,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-16 14:01:52,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:01:52,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-16 14:01:52,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2020-10-16 14:01:52,936 INFO L87 Difference]: Start difference. First operand 802 states and 2022 transitions. Second operand 23 states. [2020-10-16 14:01:54,102 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2020-10-16 14:01:54,248 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 36 [2020-10-16 14:01:54,412 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-10-16 14:01:54,773 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 44 [2020-10-16 14:01:54,964 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 38 [2020-10-16 14:01:55,149 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-16 14:01:55,573 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2020-10-16 14:01:55,839 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2020-10-16 14:01:56,060 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2020-10-16 14:01:56,226 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-16 14:01:56,586 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2020-10-16 14:01:56,890 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2020-10-16 14:01:57,095 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2020-10-16 14:01:57,365 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2020-10-16 14:01:57,672 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 42 [2020-10-16 14:01:57,856 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2020-10-16 14:01:58,370 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-10-16 14:01:58,742 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2020-10-16 14:01:58,972 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 46 [2020-10-16 14:01:59,142 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-10-16 14:01:59,289 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-10-16 14:01:59,549 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2020-10-16 14:01:59,803 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-10-16 14:01:59,958 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 37 [2020-10-16 14:02:00,408 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 53 [2020-10-16 14:02:00,602 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-10-16 14:02:00,895 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-16 14:02:01,177 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2020-10-16 14:02:01,393 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2020-10-16 14:02:01,807 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-10-16 14:02:02,062 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-10-16 14:02:02,444 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 38 [2020-10-16 14:02:02,651 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 32 [2020-10-16 14:02:03,059 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2020-10-16 14:02:03,703 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 35 [2020-10-16 14:02:03,979 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-10-16 14:02:04,171 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2020-10-16 14:02:04,594 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2020-10-16 14:02:04,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:02:04,675 INFO L93 Difference]: Finished difference Result 1381 states and 3138 transitions. [2020-10-16 14:02:04,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-10-16 14:02:04,680 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 25 [2020-10-16 14:02:04,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:02:04,686 INFO L225 Difference]: With dead ends: 1381 [2020-10-16 14:02:04,686 INFO L226 Difference]: Without dead ends: 1352 [2020-10-16 14:02:04,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2325 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1451, Invalid=6921, Unknown=0, NotChecked=0, Total=8372 [2020-10-16 14:02:04,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2020-10-16 14:02:04,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 797. [2020-10-16 14:02:04,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-10-16 14:02:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 2005 transitions. [2020-10-16 14:02:04,714 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 2005 transitions. Word has length 25 [2020-10-16 14:02:04,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:02:04,714 INFO L481 AbstractCegarLoop]: Abstraction has 797 states and 2005 transitions. [2020-10-16 14:02:04,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-16 14:02:04,714 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 2005 transitions. [2020-10-16 14:02:04,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 14:02:04,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:02:04,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:02:04,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 14:02:04,719 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:02:04,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:02:04,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1646732586, now seen corresponding path program 3 times [2020-10-16 14:02:04,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:02:04,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797890514] [2020-10-16 14:02:04,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:02:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:02:05,123 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 14:02:05,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797890514] [2020-10-16 14:02:05,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:02:05,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-16 14:02:05,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1370893774] [2020-10-16 14:02:05,125 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:02:05,127 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:02:05,134 INFO L258 McrAutomatonBuilder]: Finished intersection with 45 states and 63 transitions. [2020-10-16 14:02:05,134 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:02:05,192 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-16 14:02:05,193 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-16 14:02:05,206 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-16 14:02:05,208 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-16 14:02:05,218 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-16 14:02:05,219 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-16 14:02:05,352 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 14:02:05,358 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 14:02:05,477 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [20563#(or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| fooThread1of1ForFork1_~x~0.base))) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#second_thread_id~0.base| fooThread1of1ForFork1_~x~0.base)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)))), 20564#(or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)) (and (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#third_thread_id~0.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)))), 20565#(and (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|) (not (= |fooThread1of1ForFork2_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (and (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|)))) (or (and (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|))), 20566#(and (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork0_#in~n.base|) (or (not (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|)) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)))) (or (and (not (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork1_#in~n.base|)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#third_thread_id~0.base|) |ULTIMATE.start_main_~#third_thread_id~0.offset|) fooThread1of1ForFork1_thidvar0))) (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#third_thread_id~0.base|)))] [2020-10-16 14:02:05,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-16 14:02:05,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:02:05,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-16 14:02:05,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-10-16 14:02:05,479 INFO L87 Difference]: Start difference. First operand 797 states and 2005 transitions. Second operand 21 states. [2020-10-16 14:02:06,009 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2020-10-16 14:02:06,187 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-10-16 14:02:06,389 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2020-10-16 14:02:06,561 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-16 14:02:06,762 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-10-16 14:02:06,990 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2020-10-16 14:02:07,190 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2020-10-16 14:02:07,499 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2020-10-16 14:02:07,950 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-10-16 14:02:08,151 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-10-16 14:02:08,320 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-10-16 14:02:08,539 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2020-10-16 14:02:08,768 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2020-10-16 14:02:09,133 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 70 [2020-10-16 14:02:09,491 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-10-16 14:02:09,678 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-10-16 14:02:09,933 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2020-10-16 14:02:10,207 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2020-10-16 14:02:10,478 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2020-10-16 14:02:10,777 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2020-10-16 14:02:10,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:02:10,852 INFO L93 Difference]: Finished difference Result 1209 states and 2811 transitions. [2020-10-16 14:02:10,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-16 14:02:10,852 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 25 [2020-10-16 14:02:10,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:02:10,858 INFO L225 Difference]: With dead ends: 1209 [2020-10-16 14:02:10,859 INFO L226 Difference]: Without dead ends: 1190 [2020-10-16 14:02:10,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=654, Invalid=1896, Unknown=0, NotChecked=0, Total=2550 [2020-10-16 14:02:10,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2020-10-16 14:02:10,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 831. [2020-10-16 14:02:10,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2020-10-16 14:02:10,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 2082 transitions. [2020-10-16 14:02:10,883 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 2082 transitions. Word has length 25 [2020-10-16 14:02:10,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:02:10,883 INFO L481 AbstractCegarLoop]: Abstraction has 831 states and 2082 transitions. [2020-10-16 14:02:10,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-16 14:02:10,884 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 2082 transitions. [2020-10-16 14:02:10,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 14:02:10,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:02:10,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:02:10,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 14:02:10,886 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:02:10,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:02:10,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1982583190, now seen corresponding path program 3 times [2020-10-16 14:02:10,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:02:10,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042099947] [2020-10-16 14:02:10,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:02:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 14:02:11,535 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 14:02:11,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042099947] [2020-10-16 14:02:11,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 14:02:11,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-16 14:02:11,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [390109327] [2020-10-16 14:02:11,537 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 14:02:11,540 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 14:02:11,546 INFO L258 McrAutomatonBuilder]: Finished intersection with 35 states and 43 transitions. [2020-10-16 14:02:11,547 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 14:02:11,732 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [23513#(and (not (= (+ ~counter~0 1) 0)) (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= fooThread1of1ForFork2_~x~0.base |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (and (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (= fooThread1of1ForFork0_thidvar0 0) (= |fooThread1of1ForFork1_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|)))), 23514#(and (not (= (+ ~counter~0 1) 0)) (or (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |fooThread1of1ForFork2_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (not (= |fooThread1of1ForFork0_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (and (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (= fooThread1of1ForFork0_thidvar0 0) (= |fooThread1of1ForFork1_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|)))), 23515#(and (not (= (+ ~counter~0 1) 0)) (or (and (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (= fooThread1of1ForFork0_thidvar0 0) (= |fooThread1of1ForFork1_#in~n.offset| |ULTIMATE.start_main_~#second_thread_id~0.offset|)) (not (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|))) (or (= |ULTIMATE.start_main_~#val~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|) (and (not (= (select (select |#memory_int| |ULTIMATE.start_main_~#second_thread_id~0.base|) |ULTIMATE.start_main_~#second_thread_id~0.offset|) fooThread1of1ForFork0_thidvar0)) (not (= |fooThread1of1ForFork1_#in~n.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)) (= |ULTIMATE.start_main_~#val~0.base| |fooThread1of1ForFork0_#in~n.base|))))] [2020-10-16 14:02:11,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-16 14:02:11,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 14:02:11,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-16 14:02:11,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-16 14:02:11,733 INFO L87 Difference]: Start difference. First operand 831 states and 2082 transitions. Second operand 18 states. [2020-10-16 14:02:11,995 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2020-10-16 14:02:12,184 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-10-16 14:02:12,538 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-16 14:02:12,724 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2020-10-16 14:02:13,021 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2020-10-16 14:02:13,396 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-10-16 14:02:13,780 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2020-10-16 14:02:13,961 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-10-16 14:02:14,194 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-10-16 14:02:14,946 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-10-16 14:02:15,213 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-16 14:02:15,378 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-10-16 14:02:15,651 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-10-16 14:02:15,946 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-10-16 14:02:16,128 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-16 14:02:16,405 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-10-16 14:02:16,709 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-10-16 14:02:16,869 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-10-16 14:02:17,129 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-10-16 14:02:17,613 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-10-16 14:02:17,749 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-10-16 14:02:18,179 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-16 14:02:19,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 14:02:19,171 INFO L93 Difference]: Finished difference Result 1205 states and 2968 transitions. [2020-10-16 14:02:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-16 14:02:19,171 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 25 [2020-10-16 14:02:19,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 14:02:19,178 INFO L225 Difference]: With dead ends: 1205 [2020-10-16 14:02:19,179 INFO L226 Difference]: Without dead ends: 1199 [2020-10-16 14:02:19,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1282 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=854, Invalid=3568, Unknown=0, NotChecked=0, Total=4422 [2020-10-16 14:02:19,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2020-10-16 14:02:19,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 929. [2020-10-16 14:02:19,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-10-16 14:02:19,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 2361 transitions. [2020-10-16 14:02:19,203 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 2361 transitions. Word has length 25 [2020-10-16 14:02:19,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 14:02:19,204 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 2361 transitions. [2020-10-16 14:02:19,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-16 14:02:19,204 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 2361 transitions. [2020-10-16 14:02:19,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 14:02:19,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 14:02:19,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 14:02:19,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 14:02:19,207 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 14:02:19,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 14:02:19,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1689584038, now seen corresponding path program 2 times [2020-10-16 14:02:19,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 14:02:19,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696809246] [2020-10-16 14:02:19,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 14:02:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 14:02:19,230 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 14:02:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 14:02:19,244 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 14:02:19,274 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 14:02:19,274 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 14:02:19,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 14:02:19,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:02:19 BasicIcfg [2020-10-16 14:02:19,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 14:02:19,328 INFO L168 Benchmark]: Toolchain (without parser) took 69114.89 ms. Allocated memory was 140.5 MB in the beginning and 540.0 MB in the end (delta: 399.5 MB). Free memory was 101.9 MB in the beginning and 443.2 MB in the end (delta: -341.3 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2020-10-16 14:02:19,328 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 14:02:19,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.31 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 101.5 MB in the beginning and 180.9 MB in the end (delta: -79.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-10-16 14:02:19,329 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.32 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 178.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-10-16 14:02:19,329 INFO L168 Benchmark]: Boogie Preprocessor took 47.60 ms. Allocated memory is still 202.9 MB. Free memory was 178.5 MB in the beginning and 177.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 14:02:19,330 INFO L168 Benchmark]: RCFGBuilder took 322.87 ms. Allocated memory is still 202.9 MB. Free memory was 177.2 MB in the beginning and 159.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2020-10-16 14:02:19,331 INFO L168 Benchmark]: TraceAbstraction took 68341.43 ms. Allocated memory was 202.9 MB in the beginning and 540.0 MB in the end (delta: 337.1 MB). Free memory was 159.1 MB in the beginning and 443.2 MB in the end (delta: -284.1 MB). Peak memory consumption was 53.0 MB. Max. memory is 7.1 GB. [2020-10-16 14:02:19,332 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 346.31 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 101.5 MB in the beginning and 180.9 MB in the end (delta: -79.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.32 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 178.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.60 ms. Allocated memory is still 202.9 MB. Free memory was 178.5 MB in the beginning and 177.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 322.87 ms. Allocated memory is still 202.9 MB. Free memory was 177.2 MB in the beginning and 159.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 68341.43 ms. Allocated memory was 202.9 MB in the beginning and 540.0 MB in the end (delta: 337.1 MB). Free memory was 159.1 MB in the beginning and 443.2 MB in the end (delta: -284.1 MB). Peak memory consumption was 53.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 512 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 104 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 81 PlacesBefore, 39 PlacesAfterwards, 77 TransitionsBefore, 35 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 5 FixpointIterations, 25 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, 4010 MoverChecksTotal - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int counter = 0; [L23] 0 int val = 0; [L25] 0 pthread_t first_thread_id; [L26] 0 pthread_t second_thread_id; [L27] 0 pthread_t third_thread_id; [L29] FCALL, FORK 0 pthread_create(&first_thread_id, NULL, foo, &val) VAL [counter=0, n={8:0}] [L30] FCALL, FORK 0 pthread_create(&second_thread_id, NULL, foo, &val) VAL [counter=0, n={8:0}] [L16] 2 int *x = (int *)n; [L17] 2 ++counter VAL [++counter=1, counter=0, n={8:0}, n={8:0}, x={8:0}] [L31] FCALL, FORK 0 pthread_create(&third_thread_id, NULL, foo, &val) VAL [++counter=1, counter=0, n={8:0}, n={8:0}, x={8:0}] [L16] 3 int *x = (int *)n; [L17] EXPR 3 ++counter VAL [++counter=1, counter=1, n={8:0}, n={8:0}, x={8:0}] [L17] 3 *x = ++counter [L18] 3 return 0; [L17] 2 ++counter VAL [++counter=1, \result={0:0}, counter=2, n={8:0}, n={8:0}, x={8:0}] [L16] 1 int *x = (int *)n; [L17] EXPR 1 ++counter VAL [++counter=3, \result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L33] 0 \read(first_thread_id) VAL [++counter=3, \result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L17] 1 *x = ++counter [L18] 1 return 0; [L17] 2 *x = ++counter [L18] 2 return 0; [L33] FCALL, JOIN 1 pthread_join(first_thread_id, NULL) VAL [\result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L34] 0 \read(second_thread_id) VAL [\result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L34] FCALL, JOIN 2 pthread_join(second_thread_id, NULL) VAL [\result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L35] 0 \read(third_thread_id) VAL [\result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L35] FCALL, JOIN 3 pthread_join(third_thread_id, NULL) VAL [\result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L37] FCALL 0 IdentifierExpression[val] [L37] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 68.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 57.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 472 SDtfs, 4576 SDslu, 3890 SDs, 0 SdLazy, 11745 SolverSat, 1077 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 672 GetRequests, 81 SyntacticMatches, 26 SemanticMatches, 565 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10207 ImplicationChecksByTransitivity, 51.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=929occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 3811 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 275 NumberOfCodeBlocks, 275 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 240 ConstructedInterpolants, 0 QuantifiedInterpolants, 119808 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...