/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-SP.epf -i ../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:48:44,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:48:44,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:48:44,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:48:44,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:48:44,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:48:44,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:48:44,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:48:44,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:48:44,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:48:44,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:48:44,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:48:44,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:48:44,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:48:44,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:48:44,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:48:44,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:48:44,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:48:44,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:48:44,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:48:44,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:48:44,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:48:44,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:48:44,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:48:44,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:48:44,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:48:44,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:48:44,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:48:44,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:48:44,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:48:44,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:48:44,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:48:44,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:48:44,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:48:44,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:48:44,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:48:44,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:48:44,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:48:44,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:48:44,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:48:44,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:48:44,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:48:44,137 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:48:44,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:48:44,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:48:44,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:48:44,140 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:48:44,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:48:44,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:48:44,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:48:44,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:48:44,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:48:44,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:48:44,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:48:44,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:48:44,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:48:44,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:48:44,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:48:44,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:48:44,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:48:44,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:48:44,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:48:44,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:48:44,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:48:44,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:48:44,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:48:44,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:48:44,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:48:44,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:48:44,144 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:48:44,144 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:48:44,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:48:44,145 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:48:44,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:48:44,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:48:44,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:48:44,503 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:48:44,505 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:48:44,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-10-22 02:48:44,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/526881500/e7d5f5df45044bd1914b873d3225ab43/FLAGc42e4cd07 [2020-10-22 02:48:45,058 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:48:45,059 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-10-22 02:48:45,060 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-22 02:48:45,060 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-22 02:48:45,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/526881500/e7d5f5df45044bd1914b873d3225ab43/FLAGc42e4cd07 [2020-10-22 02:48:45,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/526881500/e7d5f5df45044bd1914b873d3225ab43 [2020-10-22 02:48:45,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:48:45,449 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:48:45,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:48:45,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:48:45,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:48:45,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:48:45" (1/1) ... [2020-10-22 02:48:45,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef3ba0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45, skipping insertion in model container [2020-10-22 02:48:45,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:48:45" (1/1) ... [2020-10-22 02:48:45,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:48:45,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:48:45,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:48:45,760 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:48:45,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:48:45,790 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:48:45,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45 WrapperNode [2020-10-22 02:48:45,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:48:45,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:48:45,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:48:45,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:48:45,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45" (1/1) ... [2020-10-22 02:48:45,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45" (1/1) ... [2020-10-22 02:48:45,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:48:45,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:48:45,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:48:45,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:48:45,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45" (1/1) ... [2020-10-22 02:48:45,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45" (1/1) ... [2020-10-22 02:48:45,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45" (1/1) ... [2020-10-22 02:48:45,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45" (1/1) ... [2020-10-22 02:48:45,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45" (1/1) ... [2020-10-22 02:48:45,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45" (1/1) ... [2020-10-22 02:48:45,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45" (1/1) ... [2020-10-22 02:48:45,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:48:45,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:48:45,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:48:45,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:48:45,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:48:45,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:48:45,917 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-22 02:48:45,917 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-22 02:48:45,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:48:45,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:48:45,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-22 02:48:45,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:48:45,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:48:45,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:48:45,920 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:48:46,178 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:48:46,179 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-22 02:48:46,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:48:46 BoogieIcfgContainer [2020-10-22 02:48:46,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:48:46,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:48:46,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:48:46,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:48:46,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:48:45" (1/3) ... [2020-10-22 02:48:46,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8f88e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:48:46, skipping insertion in model container [2020-10-22 02:48:46,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:48:45" (2/3) ... [2020-10-22 02:48:46,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8f88e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:48:46, skipping insertion in model container [2020-10-22 02:48:46,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:48:46" (3/3) ... [2020-10-22 02:48:46,194 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2020-10-22 02:48:46,211 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:48:46,211 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:48:46,221 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:48:46,223 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:48:46,270 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,271 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,274 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,275 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,275 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,276 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,276 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,279 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,280 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,280 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,280 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,281 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,281 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,281 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,282 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,282 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,282 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,283 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,283 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,283 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,283 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,284 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,284 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,289 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,289 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,289 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,290 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,293 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,293 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,293 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,294 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,294 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,294 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,295 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,295 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,295 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,295 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,295 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,296 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,296 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,296 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,297 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,299 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,299 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,300 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,307 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,308 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,308 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,308 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,309 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,309 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,314 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,334 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,335 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,335 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,335 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,335 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,336 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,336 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,354 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,355 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,355 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,355 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,355 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,356 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,356 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:48:46,384 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-10-22 02:48:46,396 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:48:46,414 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:48:46,414 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:48:46,415 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:48:46,415 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:48:46,415 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:48:46,415 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:48:46,415 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:48:46,416 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:48:46,432 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:48:46,433 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 77 transitions, 196 flow [2020-10-22 02:48:46,435 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 77 transitions, 196 flow [2020-10-22 02:48:46,437 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 196 flow [2020-10-22 02:48:46,508 INFO L129 PetriNetUnfolder]: 5/85 cut-off events. [2020-10-22 02:48:46,509 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-22 02:48:46,515 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. [2020-10-22 02:48:46,519 INFO L116 LiptonReduction]: Number of co-enabled transitions 1008 [2020-10-22 02:48:47,693 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-10-22 02:48:47,821 INFO L131 LiptonReduction]: Checked pairs total: 4010 [2020-10-22 02:48:47,822 INFO L133 LiptonReduction]: Total number of compositions: 43 [2020-10-22 02:48:47,829 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 112 flow [2020-10-22 02:48:47,862 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 354 states. [2020-10-22 02:48:47,865 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-10-22 02:48:47,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 02:48:47,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:48:47,884 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] [2020-10-22 02:48:47,884 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 02:48:47,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:48:47,891 INFO L82 PathProgramCache]: Analyzing trace with hash -126150362, now seen corresponding path program 1 times [2020-10-22 02:48:47,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:48:47,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963543980] [2020-10-22 02:48:47,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:48:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:48:48,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:48:48,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963543980] [2020-10-22 02:48:48,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:48:48,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-22 02:48:48,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1591363684] [2020-10-22 02:48:48,569 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:48:48,577 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:48:48,608 INFO L252 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions. [2020-10-22 02:48:48,609 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:48:49,051 INFO L301 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))))] [2020-10-22 02:48:49,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-22 02:48:49,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:48:49,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-22 02:48:49,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-22 02:48:49,072 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 16 states. [2020-10-22 02:48:49,642 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2020-10-22 02:48:50,145 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 37 [2020-10-22 02:48:50,807 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2020-10-22 02:48:51,132 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-22 02:48:51,386 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-10-22 02:48:51,588 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2020-10-22 02:48:51,844 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-10-22 02:48:52,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:48:52,591 INFO L93 Difference]: Finished difference Result 733 states and 1844 transitions. [2020-10-22 02:48:52,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-22 02:48:52,594 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 25 [2020-10-22 02:48:52,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:48:52,616 INFO L225 Difference]: With dead ends: 733 [2020-10-22 02:48:52,616 INFO L226 Difference]: Without dead ends: 725 [2020-10-22 02:48:52,619 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 [2020-10-22 02:48:52,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2020-10-22 02:48:52,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 448. [2020-10-22 02:48:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-10-22 02:48:52,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 1123 transitions. [2020-10-22 02:48:52,713 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 1123 transitions. Word has length 25 [2020-10-22 02:48:52,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:48:52,714 INFO L481 AbstractCegarLoop]: Abstraction has 448 states and 1123 transitions. [2020-10-22 02:48:52,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-22 02:48:52,715 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 1123 transitions. [2020-10-22 02:48:52,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 02:48:52,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:48:52,719 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] [2020-10-22 02:48:52,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:48:52,720 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 02:48:52,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:48:52,720 INFO L82 PathProgramCache]: Analyzing trace with hash -63589262, now seen corresponding path program 2 times [2020-10-22 02:48:52,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:48:52,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947466280] [2020-10-22 02:48:52,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:48:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:48:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:48:53,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947466280] [2020-10-22 02:48:53,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:48:53,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-22 02:48:53,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [523024440] [2020-10-22 02:48:53,284 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:48:53,290 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:48:53,309 INFO L252 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions. [2020-10-22 02:48:53,310 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:48:53,546 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-10-22 02:48:55,445 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-10-22 02:48:57,586 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2020-10-22 02:48:59,783 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-10-22 02:49:01,225 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-10-22 02:49:02,031 WARN L193 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2020-10-22 02:49:02,282 INFO L301 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|)))] [2020-10-22 02:49:02,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-22 02:49:02,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:49:02,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-22 02:49:02,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2020-10-22 02:49:02,285 INFO L87 Difference]: Start difference. First operand 448 states and 1123 transitions. Second operand 20 states. [2020-10-22 02:49:03,536 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2020-10-22 02:49:03,695 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2020-10-22 02:49:04,280 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-10-22 02:49:06,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:49:06,440 INFO L93 Difference]: Finished difference Result 1190 states and 2990 transitions. [2020-10-22 02:49:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-22 02:49:06,441 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 25 [2020-10-22 02:49:06,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:49:06,450 INFO L225 Difference]: With dead ends: 1190 [2020-10-22 02:49:06,450 INFO L226 Difference]: Without dead ends: 1181 [2020-10-22 02:49:06,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 8 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=491, Invalid=2371, Unknown=0, NotChecked=0, Total=2862 [2020-10-22 02:49:06,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2020-10-22 02:49:06,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 528. [2020-10-22 02:49:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-22 02:49:06,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1306 transitions. [2020-10-22 02:49:06,492 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1306 transitions. Word has length 25 [2020-10-22 02:49:06,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:49:06,492 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 1306 transitions. [2020-10-22 02:49:06,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-22 02:49:06,492 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1306 transitions. [2020-10-22 02:49:06,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 02:49:06,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:49:06,495 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] [2020-10-22 02:49:06,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:49:06,496 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 02:49:06,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:49:06,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1895995450, now seen corresponding path program 1 times [2020-10-22 02:49:06,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:49:06,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634077287] [2020-10-22 02:49:06,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:49:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:49:07,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:49:07,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634077287] [2020-10-22 02:49:07,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:49:07,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-22 02:49:07,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2045791602] [2020-10-22 02:49:07,094 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:49:07,098 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:49:07,114 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions. [2020-10-22 02:49:07,114 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:49:07,481 INFO L301 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 (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|))) (= |fooThread1of1ForFork1_#in~n.base| |fooThread1of1ForFork2_#in~n.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|))] [2020-10-22 02:49:07,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-22 02:49:07,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:49:07,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-22 02:49:07,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-10-22 02:49:07,483 INFO L87 Difference]: Start difference. First operand 528 states and 1306 transitions. Second operand 17 states. [2020-10-22 02:49:10,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:49:10,245 INFO L93 Difference]: Finished difference Result 664 states and 1664 transitions. [2020-10-22 02:49:10,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-22 02:49:10,245 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 25 [2020-10-22 02:49:10,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:49:10,250 INFO L225 Difference]: With dead ends: 664 [2020-10-22 02:49:10,250 INFO L226 Difference]: Without dead ends: 656 [2020-10-22 02:49:10,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=431, Invalid=1639, Unknown=0, NotChecked=0, Total=2070 [2020-10-22 02:49:10,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2020-10-22 02:49:10,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 587. [2020-10-22 02:49:10,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-10-22 02:49:10,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 1451 transitions. [2020-10-22 02:49:10,281 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 1451 transitions. Word has length 25 [2020-10-22 02:49:10,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:49:10,285 INFO L481 AbstractCegarLoop]: Abstraction has 587 states and 1451 transitions. [2020-10-22 02:49:10,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-22 02:49:10,286 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 1451 transitions. [2020-10-22 02:49:10,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 02:49:10,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:49:10,294 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] [2020-10-22 02:49:10,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:49:10,294 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 02:49:10,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:49:10,295 INFO L82 PathProgramCache]: Analyzing trace with hash 374980096, now seen corresponding path program 2 times [2020-10-22 02:49:10,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:49:10,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075269387] [2020-10-22 02:49:10,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:49:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:49:10,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:49:10,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075269387] [2020-10-22 02:49:10,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:49:10,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-22 02:49:10,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2018229138] [2020-10-22 02:49:10,777 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:49:10,780 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:49:10,795 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions. [2020-10-22 02:49:10,795 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:49:11,175 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-10-22 02:49:13,455 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-22 02:49:14,832 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-10-22 02:49:15,024 INFO L301 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|))))] [2020-10-22 02:49:15,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-22 02:49:15,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:49:15,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-22 02:49:15,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2020-10-22 02:49:15,026 INFO L87 Difference]: Start difference. First operand 587 states and 1451 transitions. Second operand 21 states. [2020-10-22 02:49:16,431 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-10-22 02:49:16,585 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-10-22 02:49:17,364 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-22 02:49:19,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:49:19,607 INFO L93 Difference]: Finished difference Result 1332 states and 3276 transitions. [2020-10-22 02:49:19,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-22 02:49:19,607 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 25 [2020-10-22 02:49:19,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:49:19,615 INFO L225 Difference]: With dead ends: 1332 [2020-10-22 02:49:19,615 INFO L226 Difference]: Without dead ends: 1314 [2020-10-22 02:49:19,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=574, Invalid=2966, Unknown=0, NotChecked=0, Total=3540 [2020-10-22 02:49:19,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-10-22 02:49:19,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 677. [2020-10-22 02:49:19,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-10-22 02:49:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 1695 transitions. [2020-10-22 02:49:19,643 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 1695 transitions. Word has length 25 [2020-10-22 02:49:19,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:49:19,644 INFO L481 AbstractCegarLoop]: Abstraction has 677 states and 1695 transitions. [2020-10-22 02:49:19,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-22 02:49:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 1695 transitions. [2020-10-22 02:49:19,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 02:49:19,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:49:19,647 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] [2020-10-22 02:49:19,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:49:19,647 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 02:49:19,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:49:19,648 INFO L82 PathProgramCache]: Analyzing trace with hash 284319048, now seen corresponding path program 1 times [2020-10-22 02:49:19,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:49:19,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994986516] [2020-10-22 02:49:19,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:49:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:49:19,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:49:19,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994986516] [2020-10-22 02:49:19,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:49:19,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-22 02:49:19,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [731307694] [2020-10-22 02:49:19,795 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:49:19,798 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:49:19,804 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 45 transitions. [2020-10-22 02:49:19,804 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:49:19,965 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:49:19,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-22 02:49:19,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:49:19,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-22 02:49:19,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:49:19,967 INFO L87 Difference]: Start difference. First operand 677 states and 1695 transitions. Second operand 8 states. [2020-10-22 02:49:20,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:49:20,135 INFO L93 Difference]: Finished difference Result 836 states and 2041 transitions. [2020-10-22 02:49:20,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 02:49:20,136 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-22 02:49:20,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:49:20,141 INFO L225 Difference]: With dead ends: 836 [2020-10-22 02:49:20,141 INFO L226 Difference]: Without dead ends: 697 [2020-10-22 02:49:20,142 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 [2020-10-22 02:49:20,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-22 02:49:20,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 648. [2020-10-22 02:49:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-10-22 02:49:20,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1620 transitions. [2020-10-22 02:49:20,160 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1620 transitions. Word has length 25 [2020-10-22 02:49:20,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:49:20,161 INFO L481 AbstractCegarLoop]: Abstraction has 648 states and 1620 transitions. [2020-10-22 02:49:20,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-22 02:49:20,161 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1620 transitions. [2020-10-22 02:49:20,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 02:49:20,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:49:20,164 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] [2020-10-22 02:49:20,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:49:20,164 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 02:49:20,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:49:20,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1342328380, now seen corresponding path program 1 times [2020-10-22 02:49:20,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:49:20,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053159280] [2020-10-22 02:49:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:49:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:49:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:49:20,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053159280] [2020-10-22 02:49:20,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:49:20,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-22 02:49:20,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [166433382] [2020-10-22 02:49:20,727 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:49:20,731 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:49:20,740 INFO L252 McrAutomatonBuilder]: Finished intersection with 44 states and 61 transitions. [2020-10-22 02:49:20,741 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:49:21,239 INFO L301 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|) (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|) (= |fooThread1of1ForFork1_#in~n.base| |fooThread1of1ForFork2_#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|) (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|) (= |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 (= |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|)))))] [2020-10-22 02:49:21,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-22 02:49:21,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:49:21,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-22 02:49:21,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-22 02:49:21,241 INFO L87 Difference]: Start difference. First operand 648 states and 1620 transitions. Second operand 18 states. [2020-10-22 02:49:23,269 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2020-10-22 02:49:23,402 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2020-10-22 02:49:23,859 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-10-22 02:49:24,388 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-10-22 02:49:24,572 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-10-22 02:49:24,926 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-10-22 02:49:25,167 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-10-22 02:49:25,487 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2020-10-22 02:49:25,877 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-10-22 02:49:26,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:49:26,485 INFO L93 Difference]: Finished difference Result 1071 states and 2696 transitions. [2020-10-22 02:49:26,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-22 02:49:26,490 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 25 [2020-10-22 02:49:26,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:49:26,496 INFO L225 Difference]: With dead ends: 1071 [2020-10-22 02:49:26,496 INFO L226 Difference]: Without dead ends: 1065 [2020-10-22 02:49:26,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=873, Invalid=3417, Unknown=0, NotChecked=0, Total=4290 [2020-10-22 02:49:26,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2020-10-22 02:49:26,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 694. [2020-10-22 02:49:26,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2020-10-22 02:49:26,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1768 transitions. [2020-10-22 02:49:26,519 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1768 transitions. Word has length 25 [2020-10-22 02:49:26,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:49:26,519 INFO L481 AbstractCegarLoop]: Abstraction has 694 states and 1768 transitions. [2020-10-22 02:49:26,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-22 02:49:26,519 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1768 transitions. [2020-10-22 02:49:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 02:49:26,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:49:26,522 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] [2020-10-22 02:49:26,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:49:26,522 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 02:49:26,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:49:26,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1285072000, now seen corresponding path program 1 times [2020-10-22 02:49:26,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:49:26,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271107808] [2020-10-22 02:49:26,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:49:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:49:26,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:49:26,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271107808] [2020-10-22 02:49:26,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:49:26,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-22 02:49:26,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [486164945] [2020-10-22 02:49:26,909 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:49:26,913 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:49:26,922 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 65 transitions. [2020-10-22 02:49:26,923 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:49:27,618 INFO L301 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 (= |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 (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_~#third_thread_id~0.base| |fooThread1of1ForFork2_#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| 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_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~0.base|)))))] [2020-10-22 02:49:27,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-22 02:49:27,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:49:27,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-22 02:49:27,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2020-10-22 02:49:27,620 INFO L87 Difference]: Start difference. First operand 694 states and 1768 transitions. Second operand 22 states. [2020-10-22 02:49:28,776 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2020-10-22 02:49:28,926 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2020-10-22 02:49:29,089 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-10-22 02:49:29,446 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44 [2020-10-22 02:49:29,622 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2020-10-22 02:49:29,810 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-22 02:49:30,205 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-10-22 02:49:30,423 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2020-10-22 02:49:30,606 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2020-10-22 02:49:30,768 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-22 02:49:31,086 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2020-10-22 02:49:31,325 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2020-10-22 02:49:31,527 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2020-10-22 02:49:31,761 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2020-10-22 02:49:32,034 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-10-22 02:49:32,216 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2020-10-22 02:49:32,669 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-22 02:49:32,986 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2020-10-22 02:49:33,179 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-10-22 02:49:33,341 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-10-22 02:49:33,476 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-10-22 02:49:33,697 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-10-22 02:49:33,920 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2020-10-22 02:49:34,070 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 37 [2020-10-22 02:49:34,450 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2020-10-22 02:49:34,630 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-10-22 02:49:34,873 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2020-10-22 02:49:35,108 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-10-22 02:49:35,326 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2020-10-22 02:49:35,707 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-10-22 02:49:35,963 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-10-22 02:49:36,168 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-10-22 02:49:36,637 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2020-10-22 02:49:36,765 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-10-22 02:49:36,966 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 44 [2020-10-22 02:49:37,136 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2020-10-22 02:49:37,453 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 41 [2020-10-22 02:49:37,593 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 37 [2020-10-22 02:49:38,160 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 44 [2020-10-22 02:49:38,322 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-10-22 02:49:38,515 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2020-10-22 02:49:38,932 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2020-10-22 02:49:39,255 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-10-22 02:49:39,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:49:39,379 INFO L93 Difference]: Finished difference Result 1396 states and 3158 transitions. [2020-10-22 02:49:39,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-10-22 02:49:39,380 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 25 [2020-10-22 02:49:39,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:49:39,388 INFO L225 Difference]: With dead ends: 1396 [2020-10-22 02:49:39,388 INFO L226 Difference]: Without dead ends: 1373 [2020-10-22 02:49:39,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2612 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1487, Invalid=7443, Unknown=0, NotChecked=0, Total=8930 [2020-10-22 02:49:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2020-10-22 02:49:39,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 802. [2020-10-22 02:49:39,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2020-10-22 02:49:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 2022 transitions. [2020-10-22 02:49:39,421 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 2022 transitions. Word has length 25 [2020-10-22 02:49:39,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:49:39,422 INFO L481 AbstractCegarLoop]: Abstraction has 802 states and 2022 transitions. [2020-10-22 02:49:39,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-22 02:49:39,422 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 2022 transitions. [2020-10-22 02:49:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 02:49:39,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:49:39,425 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] [2020-10-22 02:49:39,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:49:39,425 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 02:49:39,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:49:39,425 INFO L82 PathProgramCache]: Analyzing trace with hash -421440302, now seen corresponding path program 2 times [2020-10-22 02:49:39,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:49:39,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768539717] [2020-10-22 02:49:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:49:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:49:39,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:49:39,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768539717] [2020-10-22 02:49:39,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:49:39,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-22 02:49:39,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1837501782] [2020-10-22 02:49:39,803 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:49:39,806 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:49:39,819 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 65 transitions. [2020-10-22 02:49:39,819 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:49:40,469 INFO L301 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| 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_~#third_thread_id~0.base| |ULTIMATE.start_main_~#second_thread_id~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 (= |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 (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_~#third_thread_id~0.base| |fooThread1of1ForFork2_#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|))))] [2020-10-22 02:49:40,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-22 02:49:40,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:49:40,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-22 02:49:40,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2020-10-22 02:49:40,471 INFO L87 Difference]: Start difference. First operand 802 states and 2022 transitions. Second operand 23 states. [2020-10-22 02:49:41,621 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2020-10-22 02:49:41,770 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2020-10-22 02:49:41,927 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-10-22 02:49:42,269 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44 [2020-10-22 02:49:42,433 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2020-10-22 02:49:42,615 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-22 02:49:42,999 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-10-22 02:49:43,216 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2020-10-22 02:49:43,400 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2020-10-22 02:49:43,568 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-22 02:49:43,884 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2020-10-22 02:49:44,127 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2020-10-22 02:49:44,332 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2020-10-22 02:49:44,559 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2020-10-22 02:49:44,825 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-10-22 02:49:44,999 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2020-10-22 02:49:45,269 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-10-22 02:49:45,478 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-22 02:49:45,784 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2020-10-22 02:49:45,980 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-10-22 02:49:46,150 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-10-22 02:49:46,290 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-10-22 02:49:46,515 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-10-22 02:49:46,724 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2020-10-22 02:49:46,877 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 37 [2020-10-22 02:49:47,272 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2020-10-22 02:49:47,460 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-10-22 02:49:47,710 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2020-10-22 02:49:47,946 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-10-22 02:49:48,158 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2020-10-22 02:49:48,568 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-10-22 02:49:48,819 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-10-22 02:49:49,365 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 32 [2020-10-22 02:49:49,772 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2020-10-22 02:49:50,019 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 32 [2020-10-22 02:49:50,439 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 35 [2020-10-22 02:49:50,687 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-10-22 02:49:51,005 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 34 [2020-10-22 02:49:51,260 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2020-10-22 02:49:51,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:49:51,340 INFO L93 Difference]: Finished difference Result 1381 states and 3138 transitions. [2020-10-22 02:49:51,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-10-22 02:49:51,341 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 25 [2020-10-22 02:49:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:49:51,347 INFO L225 Difference]: With dead ends: 1381 [2020-10-22 02:49:51,347 INFO L226 Difference]: Without dead ends: 1352 [2020-10-22 02:49:51,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2317 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=1451, Invalid=6921, Unknown=0, NotChecked=0, Total=8372 [2020-10-22 02:49:51,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2020-10-22 02:49:51,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 797. [2020-10-22 02:49:51,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-10-22 02:49:51,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 2005 transitions. [2020-10-22 02:49:51,375 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 2005 transitions. Word has length 25 [2020-10-22 02:49:51,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:49:51,375 INFO L481 AbstractCegarLoop]: Abstraction has 797 states and 2005 transitions. [2020-10-22 02:49:51,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-22 02:49:51,375 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 2005 transitions. [2020-10-22 02:49:51,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 02:49:51,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:49:51,378 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] [2020-10-22 02:49:51,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 02:49:51,378 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 02:49:51,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:49:51,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1646732586, now seen corresponding path program 3 times [2020-10-22 02:49:51,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:49:51,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597383050] [2020-10-22 02:49:51,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:49:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:49:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:49:51,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597383050] [2020-10-22 02:49:51,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:49:51,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-22 02:49:51,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1321011818] [2020-10-22 02:49:51,830 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:49:51,832 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:49:51,839 INFO L252 McrAutomatonBuilder]: Finished intersection with 45 states and 63 transitions. [2020-10-22 02:49:51,839 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:49:52,012 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-22 02:49:52,013 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-22 02:49:52,028 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-22 02:49:52,029 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-22 02:49:52,047 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-22 02:49:52,048 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-22 02:49:52,314 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 02:49:52,386 INFO L301 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#(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|))) (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|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork2_#in~n.base|) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))), 20566#(and (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| |fooThread1of1ForFork0_#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 (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|)) (= |ULTIMATE.start_main_~#third_thread_id~0.base| |fooThread1of1ForFork0_#in~n.base|))))] [2020-10-22 02:49:52,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-22 02:49:52,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:49:52,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-22 02:49:52,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-10-22 02:49:52,388 INFO L87 Difference]: Start difference. First operand 797 states and 2005 transitions. Second operand 21 states. [2020-10-22 02:49:53,219 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2020-10-22 02:49:53,379 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-22 02:49:53,553 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-22 02:49:53,770 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-22 02:49:53,970 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2020-10-22 02:49:54,261 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2020-10-22 02:49:54,701 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-10-22 02:49:54,870 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-22 02:49:55,008 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-22 02:49:55,226 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-10-22 02:49:55,452 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-22 02:49:55,804 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2020-10-22 02:49:56,146 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-10-22 02:49:56,306 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-22 02:49:56,536 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-22 02:49:56,788 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-10-22 02:49:57,034 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-22 02:49:57,314 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-22 02:49:57,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:49:57,383 INFO L93 Difference]: Finished difference Result 1209 states and 2811 transitions. [2020-10-22 02:49:57,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-22 02:49:57,384 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 25 [2020-10-22 02:49:57,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:49:57,391 INFO L225 Difference]: With dead ends: 1209 [2020-10-22 02:49:57,392 INFO L226 Difference]: Without dead ends: 1190 [2020-10-22 02:49:57,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=654, Invalid=1896, Unknown=0, NotChecked=0, Total=2550 [2020-10-22 02:49:57,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2020-10-22 02:49:57,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 831. [2020-10-22 02:49:57,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2020-10-22 02:49:57,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 2082 transitions. [2020-10-22 02:49:57,417 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 2082 transitions. Word has length 25 [2020-10-22 02:49:57,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:49:57,418 INFO L481 AbstractCegarLoop]: Abstraction has 831 states and 2082 transitions. [2020-10-22 02:49:57,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-22 02:49:57,418 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 2082 transitions. [2020-10-22 02:49:57,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 02:49:57,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:49:57,421 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] [2020-10-22 02:49:57,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 02:49:57,421 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 02:49:57,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:49:57,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1982583190, now seen corresponding path program 3 times [2020-10-22 02:49:57,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:49:57,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015876322] [2020-10-22 02:49:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:49:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:49:58,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:49:58,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015876322] [2020-10-22 02:49:58,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:49:58,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-22 02:49:58,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [204660725] [2020-10-22 02:49:58,026 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:49:58,029 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:49:58,037 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 43 transitions. [2020-10-22 02:49:58,037 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:49:58,287 INFO L301 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|))))] [2020-10-22 02:49:58,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-22 02:49:58,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:49:58,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-22 02:49:58,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-22 02:49:58,289 INFO L87 Difference]: Start difference. First operand 831 states and 2082 transitions. Second operand 18 states. [2020-10-22 02:49:58,539 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2020-10-22 02:49:58,725 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-10-22 02:49:59,075 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-22 02:49:59,253 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2020-10-22 02:49:59,542 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2020-10-22 02:49:59,927 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-10-22 02:50:00,299 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2020-10-22 02:50:00,488 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-10-22 02:50:00,729 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-10-22 02:50:01,501 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-10-22 02:50:01,781 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-22 02:50:01,951 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-10-22 02:50:02,227 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-10-22 02:50:02,514 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-10-22 02:50:02,696 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-22 02:50:02,956 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-10-22 02:50:03,266 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-10-22 02:50:03,422 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-10-22 02:50:03,680 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-10-22 02:50:04,149 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-10-22 02:50:04,690 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-22 02:50:05,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:50:05,648 INFO L93 Difference]: Finished difference Result 1205 states and 2968 transitions. [2020-10-22 02:50:05,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-22 02:50:05,649 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 25 [2020-10-22 02:50:05,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:50:05,655 INFO L225 Difference]: With dead ends: 1205 [2020-10-22 02:50:05,655 INFO L226 Difference]: Without dead ends: 1199 [2020-10-22 02:50:05,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1282 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=854, Invalid=3568, Unknown=0, NotChecked=0, Total=4422 [2020-10-22 02:50:05,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2020-10-22 02:50:05,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 929. [2020-10-22 02:50:05,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-10-22 02:50:05,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 2361 transitions. [2020-10-22 02:50:05,680 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 2361 transitions. Word has length 25 [2020-10-22 02:50:05,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:50:05,681 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 2361 transitions. [2020-10-22 02:50:05,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-22 02:50:05,681 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 2361 transitions. [2020-10-22 02:50:05,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 02:50:05,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:50:05,684 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] [2020-10-22 02:50:05,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 02:50:05,684 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 02:50:05,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:50:05,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1689584038, now seen corresponding path program 2 times [2020-10-22 02:50:05,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:50:05,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803990058] [2020-10-22 02:50:05,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:50:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:50:05,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:50:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:50:05,724 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:50:05,752 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 02:50:05,753 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 02:50:05,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-22 02:50:05,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:50:05 BasicIcfg [2020-10-22 02:50:05,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:50:05,809 INFO L168 Benchmark]: Toolchain (without parser) took 80365.78 ms. Allocated memory was 137.9 MB in the beginning and 562.6 MB in the end (delta: 424.7 MB). Free memory was 99.6 MB in the beginning and 107.6 MB in the end (delta: -8.0 MB). Peak memory consumption was 416.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:50:05,809 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 02:50:05,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.35 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 98.5 MB in the beginning and 178.4 MB in the end (delta: -79.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:50:05,810 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.51 ms. Allocated memory is still 201.3 MB. Free memory was 178.4 MB in the beginning and 176.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:50:05,811 INFO L168 Benchmark]: Boogie Preprocessor took 29.12 ms. Allocated memory is still 201.3 MB. Free memory was 176.3 MB in the beginning and 174.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:50:05,811 INFO L168 Benchmark]: RCFGBuilder took 328.82 ms. Allocated memory is still 201.3 MB. Free memory was 174.9 MB in the beginning and 157.5 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:50:05,812 INFO L168 Benchmark]: TraceAbstraction took 79623.45 ms. Allocated memory was 201.3 MB in the beginning and 562.6 MB in the end (delta: 361.2 MB). Free memory was 156.8 MB in the beginning and 107.6 MB in the end (delta: 49.2 MB). Peak memory consumption was 410.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:50:05,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 340.35 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 98.5 MB in the beginning and 178.4 MB in the end (delta: -79.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 31.51 ms. Allocated memory is still 201.3 MB. Free memory was 178.4 MB in the beginning and 176.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.12 ms. Allocated memory is still 201.3 MB. Free memory was 176.3 MB in the beginning and 174.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 328.82 ms. Allocated memory is still 201.3 MB. Free memory was 174.9 MB in the beginning and 157.5 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 79623.45 ms. Allocated memory was 201.3 MB in the beginning and 562.6 MB in the end (delta: 361.2 MB). Free memory was 156.8 MB in the beginning and 107.6 MB in the end (delta: 49.2 MB). Peak memory consumption was 410.4 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: 1.3s, 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: 79.3s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 55.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 472 SDtfs, 4575 SDslu, 3890 SDs, 0 SdLazy, 11745 SolverSat, 1077 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 673 GetRequests, 91 SyntacticMatches, 17 SemanticMatches, 565 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10162 ImplicationChecksByTransitivity, 48.7s 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, 4.3s 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...