/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 01:09:47,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 01:09:47,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 01:09:47,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 01:09:47,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 01:09:47,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 01:09:47,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 01:09:47,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 01:09:47,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 01:09:47,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 01:09:47,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 01:09:47,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 01:09:47,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 01:09:47,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 01:09:47,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 01:09:47,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 01:09:47,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 01:09:47,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 01:09:47,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 01:09:47,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 01:09:47,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 01:09:47,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 01:09:47,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 01:09:47,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 01:09:47,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 01:09:47,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 01:09:47,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 01:09:47,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 01:09:47,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 01:09:47,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 01:09:47,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 01:09:47,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 01:09:47,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 01:09:47,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 01:09:47,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 01:09:47,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 01:09:47,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 01:09:47,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 01:09:47,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 01:09:47,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 01:09:47,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 01:09:47,226 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-WP.epf [2020-10-22 01:09:47,248 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 01:09:47,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 01:09:47,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 01:09:47,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 01:09:47,250 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 01:09:47,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 01:09:47,251 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 01:09:47,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 01:09:47,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 01:09:47,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 01:09:47,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 01:09:47,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 01:09:47,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 01:09:47,252 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 01:09:47,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 01:09:47,253 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 01:09:47,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 01:09:47,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 01:09:47,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 01:09:47,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 01:09:47,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 01:09:47,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 01:09:47,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 01:09:47,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 01:09:47,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 01:09:47,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 01:09:47,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 01:09:47,255 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 01:09:47,255 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 01:09:47,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 01:09:47,255 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 01:09:47,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 01:09:47,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 01:09:47,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 01:09:47,594 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 01:09:47,594 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 01:09:47,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-10-22 01:09:47,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c113a9183/2fb55c71ea914b2c9e069155f57b3beb/FLAGec0da14de [2020-10-22 01:09:48,113 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 01:09:48,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-10-22 01:09:48,114 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-22 01:09:48,115 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-22 01:09:48,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c113a9183/2fb55c71ea914b2c9e069155f57b3beb/FLAGec0da14de [2020-10-22 01:09:48,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c113a9183/2fb55c71ea914b2c9e069155f57b3beb [2020-10-22 01:09:48,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 01:09:48,567 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 01:09:48,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 01:09:48,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 01:09:48,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 01:09:48,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:09:48" (1/1) ... [2020-10-22 01:09:48,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785982cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48, skipping insertion in model container [2020-10-22 01:09:48,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:09:48" (1/1) ... [2020-10-22 01:09:48,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 01:09:48,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 01:09:48,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:09:48,863 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 01:09:48,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:09:48,897 INFO L208 MainTranslator]: Completed translation [2020-10-22 01:09:48,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48 WrapperNode [2020-10-22 01:09:48,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 01:09:48,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 01:09:48,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 01:09:48,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 01:09:48,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48" (1/1) ... [2020-10-22 01:09:48,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48" (1/1) ... [2020-10-22 01:09:48,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 01:09:48,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 01:09:48,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 01:09:48,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 01:09:48,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48" (1/1) ... [2020-10-22 01:09:48,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48" (1/1) ... [2020-10-22 01:09:48,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48" (1/1) ... [2020-10-22 01:09:48,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48" (1/1) ... [2020-10-22 01:09:48,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48" (1/1) ... [2020-10-22 01:09:48,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48" (1/1) ... [2020-10-22 01:09:48,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48" (1/1) ... [2020-10-22 01:09:48,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 01:09:48,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 01:09:48,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 01:09:48,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 01:09:48,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48" (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 01:09:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 01:09:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-22 01:09:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-22 01:09:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 01:09:49,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 01:09:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-22 01:09:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 01:09:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 01:09:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 01:09:49,018 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 01:09:49,355 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 01:09:49,356 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-22 01:09:49,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:09:49 BoogieIcfgContainer [2020-10-22 01:09:49,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 01:09:49,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 01:09:49,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 01:09:49,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 01:09:49,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 01:09:48" (1/3) ... [2020-10-22 01:09:49,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c47c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:09:49, skipping insertion in model container [2020-10-22 01:09:49,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:09:48" (2/3) ... [2020-10-22 01:09:49,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c47c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:09:49, skipping insertion in model container [2020-10-22 01:09:49,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:09:49" (3/3) ... [2020-10-22 01:09:49,367 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2020-10-22 01:09:49,378 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 01:09:49,379 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 01:09:49,386 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 01:09:49,387 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 01:09:49,418 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,418 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,418 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,419 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,419 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,420 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,420 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,420 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,420 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,421 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,421 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,421 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,422 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,422 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,422 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,423 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,423 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,423 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,423 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,423 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,424 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,424 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,424 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,425 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,425 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,425 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,425 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,426 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,426 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,426 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,427 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,427 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,427 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,427 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,427 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,428 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,428 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,428 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,428 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,429 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,429 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,429 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,429 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,430 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,430 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,434 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,434 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,434 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,435 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,443 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,443 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,443 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,443 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,444 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,444 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,444 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,447 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,447 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,447 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,448 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,448 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,448 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,448 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:09:49,463 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-10-22 01:09:49,475 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 01:09:49,494 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:09:49,494 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:09:49,495 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:09:49,495 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:09:49,495 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:09:49,495 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:09:49,495 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:09:49,495 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:09:49,510 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:09:49,511 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 77 transitions, 196 flow [2020-10-22 01:09:49,513 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 77 transitions, 196 flow [2020-10-22 01:09:49,515 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 196 flow [2020-10-22 01:09:49,586 INFO L129 PetriNetUnfolder]: 5/85 cut-off events. [2020-10-22 01:09:49,587 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-22 01:09:49,593 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 01:09:49,599 INFO L116 LiptonReduction]: Number of co-enabled transitions 1008 [2020-10-22 01:09:50,864 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-10-22 01:09:50,997 INFO L131 LiptonReduction]: Checked pairs total: 4010 [2020-10-22 01:09:50,998 INFO L133 LiptonReduction]: Total number of compositions: 43 [2020-10-22 01:09:51,005 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 112 flow [2020-10-22 01:09:51,039 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 354 states. [2020-10-22 01:09:51,041 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-10-22 01:09:51,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 01:09:51,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:09:51,062 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 01:09:51,062 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 01:09:51,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:09:51,070 INFO L82 PathProgramCache]: Analyzing trace with hash -126150362, now seen corresponding path program 1 times [2020-10-22 01:09:51,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:09:51,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846525034] [2020-10-22 01:09:51,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:09:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:09:51,619 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 14 [2020-10-22 01:09:51,956 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 01:09:51,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846525034] [2020-10-22 01:09:51,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:09:51,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-22 01:09:51,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1944920438] [2020-10-22 01:09:51,963 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:09:51,981 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:09:52,030 INFO L252 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions. [2020-10-22 01:09:52,030 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:09:52,551 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 01:09:52,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-22 01:09:52,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:09:52,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-22 01:09:52,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-22 01:09:52,573 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 16 states. [2020-10-22 01:09:53,143 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2020-10-22 01:09:53,648 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 37 [2020-10-22 01:09:54,327 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2020-10-22 01:09:54,670 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-22 01:09:54,914 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-10-22 01:09:55,125 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2020-10-22 01:09:55,377 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-10-22 01:09:56,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:09:56,155 INFO L93 Difference]: Finished difference Result 733 states and 1844 transitions. [2020-10-22 01:09:56,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-22 01:09:56,157 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 25 [2020-10-22 01:09:56,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:09:56,181 INFO L225 Difference]: With dead ends: 733 [2020-10-22 01:09:56,182 INFO L226 Difference]: Without dead ends: 725 [2020-10-22 01:09:56,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=413, Invalid=1567, Unknown=0, NotChecked=0, Total=1980 [2020-10-22 01:09:56,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2020-10-22 01:09:56,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 448. [2020-10-22 01:09:56,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-10-22 01:09:56,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 1123 transitions. [2020-10-22 01:09:56,278 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 1123 transitions. Word has length 25 [2020-10-22 01:09:56,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:09:56,279 INFO L481 AbstractCegarLoop]: Abstraction has 448 states and 1123 transitions. [2020-10-22 01:09:56,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-22 01:09:56,280 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 1123 transitions. [2020-10-22 01:09:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 01:09:56,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:09:56,287 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 01:09:56,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 01:09:56,288 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 01:09:56,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:09:56,288 INFO L82 PathProgramCache]: Analyzing trace with hash -63589262, now seen corresponding path program 2 times [2020-10-22 01:09:56,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:09:56,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130778883] [2020-10-22 01:09:56,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:09:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:09:56,861 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 01:09:56,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130778883] [2020-10-22 01:09:56,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:09:56,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-22 01:09:56,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2024115093] [2020-10-22 01:09:56,863 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:09:56,868 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:09:56,882 INFO L252 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions. [2020-10-22 01:09:56,882 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:09:57,235 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-10-22 01:09:59,197 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-10-22 01:10:01,391 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2020-10-22 01:10:03,633 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-10-22 01:10:05,072 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-10-22 01:10:05,910 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2020-10-22 01:10:06,164 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 01:10:06,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-22 01:10:06,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:10:06,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-22 01:10:06,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2020-10-22 01:10:06,167 INFO L87 Difference]: Start difference. First operand 448 states and 1123 transitions. Second operand 20 states. [2020-10-22 01:10:07,468 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2020-10-22 01:10:08,263 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-10-22 01:10:10,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:10:10,498 INFO L93 Difference]: Finished difference Result 1190 states and 2990 transitions. [2020-10-22 01:10:10,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-22 01:10:10,499 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 25 [2020-10-22 01:10:10,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:10:10,509 INFO L225 Difference]: With dead ends: 1190 [2020-10-22 01:10:10,509 INFO L226 Difference]: Without dead ends: 1181 [2020-10-22 01:10:10,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 8 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=491, Invalid=2371, Unknown=0, NotChecked=0, Total=2862 [2020-10-22 01:10:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2020-10-22 01:10:10,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 528. [2020-10-22 01:10:10,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-22 01:10:10,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1306 transitions. [2020-10-22 01:10:10,550 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1306 transitions. Word has length 25 [2020-10-22 01:10:10,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:10:10,551 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 1306 transitions. [2020-10-22 01:10:10,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-22 01:10:10,551 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1306 transitions. [2020-10-22 01:10:10,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 01:10:10,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:10:10,554 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 01:10:10,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 01:10:10,555 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 01:10:10,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:10:10,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1895995450, now seen corresponding path program 1 times [2020-10-22 01:10:10,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:10:10,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662147263] [2020-10-22 01:10:10,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:10:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:10:11,166 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 01:10:11,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662147263] [2020-10-22 01:10:11,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:10:11,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-22 01:10:11,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [879594354] [2020-10-22 01:10:11,168 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:10:11,172 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:10:11,181 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions. [2020-10-22 01:10:11,182 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:10:11,584 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 01:10:11,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-22 01:10:11,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:10:11,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-22 01:10:11,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-10-22 01:10:11,586 INFO L87 Difference]: Start difference. First operand 528 states and 1306 transitions. Second operand 17 states. [2020-10-22 01:10:13,376 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2020-10-22 01:10:14,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:10:14,411 INFO L93 Difference]: Finished difference Result 664 states and 1664 transitions. [2020-10-22 01:10:14,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-22 01:10:14,411 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 25 [2020-10-22 01:10:14,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:10:14,417 INFO L225 Difference]: With dead ends: 664 [2020-10-22 01:10:14,418 INFO L226 Difference]: Without dead ends: 656 [2020-10-22 01:10:14,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=431, Invalid=1639, Unknown=0, NotChecked=0, Total=2070 [2020-10-22 01:10:14,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2020-10-22 01:10:14,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 587. [2020-10-22 01:10:14,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-10-22 01:10:14,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 1451 transitions. [2020-10-22 01:10:14,441 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 1451 transitions. Word has length 25 [2020-10-22 01:10:14,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:10:14,442 INFO L481 AbstractCegarLoop]: Abstraction has 587 states and 1451 transitions. [2020-10-22 01:10:14,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-22 01:10:14,442 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 1451 transitions. [2020-10-22 01:10:14,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 01:10:14,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:10:14,444 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 01:10:14,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 01:10:14,445 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 01:10:14,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:10:14,445 INFO L82 PathProgramCache]: Analyzing trace with hash 374980096, now seen corresponding path program 2 times [2020-10-22 01:10:14,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:10:14,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066698942] [2020-10-22 01:10:14,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:10:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:10:14,981 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 01:10:14,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066698942] [2020-10-22 01:10:14,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:10:14,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-22 01:10:14,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1379428305] [2020-10-22 01:10:14,982 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:10:14,985 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:10:14,994 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 57 transitions. [2020-10-22 01:10:14,995 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:10:15,412 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-10-22 01:10:17,704 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-22 01:10:19,095 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-10-22 01:10:19,294 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 01:10:19,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-22 01:10:19,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:10:19,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-22 01:10:19,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2020-10-22 01:10:19,296 INFO L87 Difference]: Start difference. First operand 587 states and 1451 transitions. Second operand 21 states. [2020-10-22 01:10:20,751 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-10-22 01:10:20,916 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-10-22 01:10:21,713 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-22 01:10:24,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:10:24,078 INFO L93 Difference]: Finished difference Result 1332 states and 3276 transitions. [2020-10-22 01:10:24,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-22 01:10:24,079 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 25 [2020-10-22 01:10:24,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:10:24,088 INFO L225 Difference]: With dead ends: 1332 [2020-10-22 01:10:24,089 INFO L226 Difference]: Without dead ends: 1314 [2020-10-22 01:10:24,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=574, Invalid=2966, Unknown=0, NotChecked=0, Total=3540 [2020-10-22 01:10:24,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-10-22 01:10:24,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 677. [2020-10-22 01:10:24,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-10-22 01:10:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 1695 transitions. [2020-10-22 01:10:24,118 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 1695 transitions. Word has length 25 [2020-10-22 01:10:24,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:10:24,119 INFO L481 AbstractCegarLoop]: Abstraction has 677 states and 1695 transitions. [2020-10-22 01:10:24,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-22 01:10:24,119 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 1695 transitions. [2020-10-22 01:10:24,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 01:10:24,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:10:24,122 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 01:10:24,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 01:10:24,122 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 01:10:24,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:10:24,122 INFO L82 PathProgramCache]: Analyzing trace with hash 284319048, now seen corresponding path program 1 times [2020-10-22 01:10:24,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:10:24,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303956387] [2020-10-22 01:10:24,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:10:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:10:24,240 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 01:10:24,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303956387] [2020-10-22 01:10:24,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:10:24,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-22 01:10:24,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [113032059] [2020-10-22 01:10:24,242 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:10:24,245 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:10:24,253 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 45 transitions. [2020-10-22 01:10:24,253 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:10:24,439 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:10:24,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-22 01:10:24,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:10:24,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-22 01:10:24,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-22 01:10:24,440 INFO L87 Difference]: Start difference. First operand 677 states and 1695 transitions. Second operand 8 states. [2020-10-22 01:10:24,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:10:24,633 INFO L93 Difference]: Finished difference Result 836 states and 2041 transitions. [2020-10-22 01:10:24,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 01:10:24,633 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-22 01:10:24,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:10:24,639 INFO L225 Difference]: With dead ends: 836 [2020-10-22 01:10:24,639 INFO L226 Difference]: Without dead ends: 697 [2020-10-22 01:10:24,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-22 01:10:24,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-22 01:10:24,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 648. [2020-10-22 01:10:24,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-10-22 01:10:24,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1620 transitions. [2020-10-22 01:10:24,657 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1620 transitions. Word has length 25 [2020-10-22 01:10:24,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:10:24,658 INFO L481 AbstractCegarLoop]: Abstraction has 648 states and 1620 transitions. [2020-10-22 01:10:24,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-22 01:10:24,658 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1620 transitions. [2020-10-22 01:10:24,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 01:10:24,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:10:24,660 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 01:10:24,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 01:10:24,661 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 01:10:24,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:10:24,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1342328380, now seen corresponding path program 1 times [2020-10-22 01:10:24,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:10:24,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704409527] [2020-10-22 01:10:24,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:10:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:10:25,141 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 01:10:25,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704409527] [2020-10-22 01:10:25,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:10:25,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-22 01:10:25,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [482048482] [2020-10-22 01:10:25,143 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:10:25,146 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:10:25,154 INFO L252 McrAutomatonBuilder]: Finished intersection with 44 states and 61 transitions. [2020-10-22 01:10:25,154 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:10:25,677 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 01:10:25,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-22 01:10:25,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:10:25,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-22 01:10:25,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-22 01:10:25,678 INFO L87 Difference]: Start difference. First operand 648 states and 1620 transitions. Second operand 18 states. [2020-10-22 01:10:27,771 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2020-10-22 01:10:28,387 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-10-22 01:10:28,614 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-10-22 01:10:28,949 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-10-22 01:10:29,129 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-10-22 01:10:29,494 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-10-22 01:10:29,751 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-10-22 01:10:30,084 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2020-10-22 01:10:30,513 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-10-22 01:10:31,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:10:31,159 INFO L93 Difference]: Finished difference Result 1071 states and 2696 transitions. [2020-10-22 01:10:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-22 01:10:31,167 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 25 [2020-10-22 01:10:31,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:10:31,173 INFO L225 Difference]: With dead ends: 1071 [2020-10-22 01:10:31,174 INFO L226 Difference]: Without dead ends: 1065 [2020-10-22 01:10:31,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=873, Invalid=3417, Unknown=0, NotChecked=0, Total=4290 [2020-10-22 01:10:31,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2020-10-22 01:10:31,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 694. [2020-10-22 01:10:31,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2020-10-22 01:10:31,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1768 transitions. [2020-10-22 01:10:31,197 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1768 transitions. Word has length 25 [2020-10-22 01:10:31,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:10:31,197 INFO L481 AbstractCegarLoop]: Abstraction has 694 states and 1768 transitions. [2020-10-22 01:10:31,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-22 01:10:31,197 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1768 transitions. [2020-10-22 01:10:31,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 01:10:31,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:10:31,200 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 01:10:31,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 01:10:31,200 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 01:10:31,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:10:31,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1285072000, now seen corresponding path program 1 times [2020-10-22 01:10:31,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:10:31,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531402022] [2020-10-22 01:10:31,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:10:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:10:31,660 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 01:10:31,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531402022] [2020-10-22 01:10:31,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:10:31,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-22 01:10:31,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [114479703] [2020-10-22 01:10:31,662 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:10:31,667 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:10:31,680 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 65 transitions. [2020-10-22 01:10:31,680 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:10:32,364 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 01:10:32,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-22 01:10:32,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:10:32,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-22 01:10:32,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2020-10-22 01:10:32,365 INFO L87 Difference]: Start difference. First operand 694 states and 1768 transitions. Second operand 22 states. [2020-10-22 01:10:33,030 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 31 [2020-10-22 01:10:33,560 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2020-10-22 01:10:33,712 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2020-10-22 01:10:33,878 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-10-22 01:10:34,243 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44 [2020-10-22 01:10:34,424 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2020-10-22 01:10:34,613 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-22 01:10:35,010 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-10-22 01:10:35,242 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2020-10-22 01:10:35,452 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2020-10-22 01:10:35,617 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-22 01:10:35,747 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37 [2020-10-22 01:10:35,963 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2020-10-22 01:10:36,220 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2020-10-22 01:10:36,431 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2020-10-22 01:10:36,682 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2020-10-22 01:10:36,965 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-10-22 01:10:37,151 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2020-10-22 01:10:37,286 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 37 [2020-10-22 01:10:37,625 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-22 01:10:37,963 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2020-10-22 01:10:38,170 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-10-22 01:10:38,345 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-10-22 01:10:38,492 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-10-22 01:10:38,737 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-10-22 01:10:38,960 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2020-10-22 01:10:39,119 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 37 [2020-10-22 01:10:39,531 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2020-10-22 01:10:39,727 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-10-22 01:10:39,978 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2020-10-22 01:10:40,228 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-10-22 01:10:40,449 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2020-10-22 01:10:40,875 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-10-22 01:10:41,160 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-10-22 01:10:41,372 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-10-22 01:10:41,867 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2020-10-22 01:10:42,006 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-10-22 01:10:42,220 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 44 [2020-10-22 01:10:42,404 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2020-10-22 01:10:42,744 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 41 [2020-10-22 01:10:42,893 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 37 [2020-10-22 01:10:43,491 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 44 [2020-10-22 01:10:43,646 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-10-22 01:10:43,843 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2020-10-22 01:10:44,265 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2020-10-22 01:10:44,595 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-10-22 01:10:44,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:10:44,731 INFO L93 Difference]: Finished difference Result 1396 states and 3158 transitions. [2020-10-22 01:10:44,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-10-22 01:10:44,731 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 25 [2020-10-22 01:10:44,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:10:44,738 INFO L225 Difference]: With dead ends: 1396 [2020-10-22 01:10:44,738 INFO L226 Difference]: Without dead ends: 1373 [2020-10-22 01:10:44,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2612 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=1487, Invalid=7443, Unknown=0, NotChecked=0, Total=8930 [2020-10-22 01:10:44,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2020-10-22 01:10:44,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 802. [2020-10-22 01:10:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2020-10-22 01:10:44,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 2022 transitions. [2020-10-22 01:10:44,767 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 2022 transitions. Word has length 25 [2020-10-22 01:10:44,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:10:44,768 INFO L481 AbstractCegarLoop]: Abstraction has 802 states and 2022 transitions. [2020-10-22 01:10:44,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-22 01:10:44,768 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 2022 transitions. [2020-10-22 01:10:44,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 01:10:44,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:10:44,770 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 01:10:44,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 01:10:44,771 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 01:10:44,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:10:44,771 INFO L82 PathProgramCache]: Analyzing trace with hash -421440302, now seen corresponding path program 2 times [2020-10-22 01:10:44,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:10:44,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985501532] [2020-10-22 01:10:44,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:10:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:10:45,193 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 01:10:45,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985501532] [2020-10-22 01:10:45,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:10:45,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-22 01:10:45,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1451739526] [2020-10-22 01:10:45,195 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:10:45,198 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:10:45,207 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 65 transitions. [2020-10-22 01:10:45,207 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:10:45,843 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 01:10:45,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-22 01:10:45,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:10:45,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-22 01:10:45,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2020-10-22 01:10:45,844 INFO L87 Difference]: Start difference. First operand 802 states and 2022 transitions. Second operand 23 states. [2020-10-22 01:10:46,632 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2020-10-22 01:10:47,045 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2020-10-22 01:10:47,204 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2020-10-22 01:10:47,386 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-10-22 01:10:47,749 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44 [2020-10-22 01:10:47,921 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2020-10-22 01:10:48,113 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-22 01:10:48,522 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-10-22 01:10:48,758 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2020-10-22 01:10:48,956 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2020-10-22 01:10:49,132 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-22 01:10:49,261 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37 [2020-10-22 01:10:49,470 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2020-10-22 01:10:49,737 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2020-10-22 01:10:49,946 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2020-10-22 01:10:50,188 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2020-10-22 01:10:50,483 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-10-22 01:10:50,670 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2020-10-22 01:10:50,807 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 37 [2020-10-22 01:10:51,153 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-22 01:10:51,470 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2020-10-22 01:10:51,660 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-10-22 01:10:51,837 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-10-22 01:10:51,990 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-10-22 01:10:52,222 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-10-22 01:10:52,447 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2020-10-22 01:10:52,611 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 37 [2020-10-22 01:10:53,032 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2020-10-22 01:10:53,232 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-10-22 01:10:53,489 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2020-10-22 01:10:53,740 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-10-22 01:10:53,963 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2020-10-22 01:10:54,393 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-10-22 01:10:54,651 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-10-22 01:10:55,234 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 32 [2020-10-22 01:10:55,481 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 31 [2020-10-22 01:10:55,663 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2020-10-22 01:10:56,341 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 35 [2020-10-22 01:10:56,612 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-10-22 01:10:56,819 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2020-10-22 01:10:56,952 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 34 [2020-10-22 01:10:57,217 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2020-10-22 01:10:57,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:10:57,303 INFO L93 Difference]: Finished difference Result 1381 states and 3138 transitions. [2020-10-22 01:10:57,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-10-22 01:10:57,303 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 25 [2020-10-22 01:10:57,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:10:57,310 INFO L225 Difference]: With dead ends: 1381 [2020-10-22 01:10:57,310 INFO L226 Difference]: Without dead ends: 1352 [2020-10-22 01:10:57,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2317 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=1451, Invalid=6921, Unknown=0, NotChecked=0, Total=8372 [2020-10-22 01:10:57,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2020-10-22 01:10:57,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 797. [2020-10-22 01:10:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-10-22 01:10:57,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 2005 transitions. [2020-10-22 01:10:57,339 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 2005 transitions. Word has length 25 [2020-10-22 01:10:57,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:10:57,339 INFO L481 AbstractCegarLoop]: Abstraction has 797 states and 2005 transitions. [2020-10-22 01:10:57,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-22 01:10:57,339 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 2005 transitions. [2020-10-22 01:10:57,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 01:10:57,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:10:57,342 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 01:10:57,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 01:10:57,342 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 01:10:57,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:10:57,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1646732586, now seen corresponding path program 3 times [2020-10-22 01:10:57,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:10:57,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465778670] [2020-10-22 01:10:57,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:10:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:10:57,743 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 01:10:57,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465778670] [2020-10-22 01:10:57,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:10:57,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-22 01:10:57,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1261248687] [2020-10-22 01:10:57,745 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:10:57,747 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:10:57,755 INFO L252 McrAutomatonBuilder]: Finished intersection with 45 states and 63 transitions. [2020-10-22 01:10:57,755 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:10:57,932 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-22 01:10:57,933 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-22 01:10:57,953 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-22 01:10:57,954 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-22 01:10:57,965 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-22 01:10:57,967 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-22 01:10:58,224 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 01:10:58,302 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 01:10:58,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-22 01:10:58,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:10:58,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-22 01:10:58,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-10-22 01:10:58,303 INFO L87 Difference]: Start difference. First operand 797 states and 2005 transitions. Second operand 21 states. [2020-10-22 01:10:58,843 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2020-10-22 01:10:58,993 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-10-22 01:10:59,192 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2020-10-22 01:10:59,360 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-22 01:10:59,549 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-22 01:10:59,780 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-22 01:10:59,991 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2020-10-22 01:11:00,300 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2020-10-22 01:11:00,768 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-10-22 01:11:00,949 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-22 01:11:01,093 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-22 01:11:01,308 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-10-22 01:11:01,537 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-22 01:11:01,905 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2020-10-22 01:11:02,260 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-10-22 01:11:02,431 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-22 01:11:02,686 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-22 01:11:02,955 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-10-22 01:11:03,222 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-22 01:11:03,523 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-22 01:11:03,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:11:03,600 INFO L93 Difference]: Finished difference Result 1209 states and 2811 transitions. [2020-10-22 01:11:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-22 01:11:03,601 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 25 [2020-10-22 01:11:03,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:11:03,608 INFO L225 Difference]: With dead ends: 1209 [2020-10-22 01:11:03,608 INFO L226 Difference]: Without dead ends: 1190 [2020-10-22 01:11:03,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=654, Invalid=1896, Unknown=0, NotChecked=0, Total=2550 [2020-10-22 01:11:03,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2020-10-22 01:11:03,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 831. [2020-10-22 01:11:03,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2020-10-22 01:11:03,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 2082 transitions. [2020-10-22 01:11:03,632 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 2082 transitions. Word has length 25 [2020-10-22 01:11:03,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:11:03,632 INFO L481 AbstractCegarLoop]: Abstraction has 831 states and 2082 transitions. [2020-10-22 01:11:03,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-22 01:11:03,633 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 2082 transitions. [2020-10-22 01:11:03,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 01:11:03,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:11:03,635 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 01:11:03,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 01:11:03,635 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 01:11:03,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:11:03,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1982583190, now seen corresponding path program 3 times [2020-10-22 01:11:03,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:11:03,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483271217] [2020-10-22 01:11:03,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:11:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:11:04,275 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 01:11:04,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483271217] [2020-10-22 01:11:04,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:11:04,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-22 01:11:04,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1341257800] [2020-10-22 01:11:04,276 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:11:04,278 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:11:04,284 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 43 transitions. [2020-10-22 01:11:04,284 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:11:04,521 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 01:11:04,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-22 01:11:04,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:11:04,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-22 01:11:04,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-10-22 01:11:04,523 INFO L87 Difference]: Start difference. First operand 831 states and 2082 transitions. Second operand 18 states. [2020-10-22 01:11:04,796 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2020-10-22 01:11:04,992 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-10-22 01:11:05,358 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-22 01:11:05,551 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2020-10-22 01:11:05,856 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2020-10-22 01:11:06,001 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-10-22 01:11:06,250 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-10-22 01:11:06,639 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2020-10-22 01:11:06,827 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-10-22 01:11:07,066 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-10-22 01:11:07,307 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-10-22 01:11:07,844 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-10-22 01:11:08,123 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-22 01:11:08,298 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-10-22 01:11:08,581 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-10-22 01:11:08,882 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-10-22 01:11:09,068 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-22 01:11:09,345 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-10-22 01:11:09,672 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-10-22 01:11:09,838 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-10-22 01:11:10,109 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-10-22 01:11:10,605 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-10-22 01:11:11,174 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-22 01:11:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:11:12,201 INFO L93 Difference]: Finished difference Result 1205 states and 2968 transitions. [2020-10-22 01:11:12,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-22 01:11:12,202 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 25 [2020-10-22 01:11:12,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:11:12,207 INFO L225 Difference]: With dead ends: 1205 [2020-10-22 01:11:12,208 INFO L226 Difference]: Without dead ends: 1199 [2020-10-22 01:11:12,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1282 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=854, Invalid=3568, Unknown=0, NotChecked=0, Total=4422 [2020-10-22 01:11:12,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2020-10-22 01:11:12,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 929. [2020-10-22 01:11:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-10-22 01:11:12,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 2361 transitions. [2020-10-22 01:11:12,234 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 2361 transitions. Word has length 25 [2020-10-22 01:11:12,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:11:12,234 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 2361 transitions. [2020-10-22 01:11:12,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-22 01:11:12,234 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 2361 transitions. [2020-10-22 01:11:12,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-22 01:11:12,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:11:12,237 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 01:11:12,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 01:11:12,238 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-22 01:11:12,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:11:12,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1689584038, now seen corresponding path program 2 times [2020-10-22 01:11:12,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:11:12,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187118551] [2020-10-22 01:11:12,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:11:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:11:12,263 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:11:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:11:12,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:11:12,309 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:11:12,310 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:11:12,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-22 01:11:12,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 01:11:12 BasicIcfg [2020-10-22 01:11:12,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 01:11:12,368 INFO L168 Benchmark]: Toolchain (without parser) took 83808.51 ms. Allocated memory was 138.9 MB in the beginning and 534.2 MB in the end (delta: 395.3 MB). Free memory was 100.4 MB in the beginning and 471.2 MB in the end (delta: -370.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-10-22 01:11:12,369 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 01:11:12,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.44 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.3 MB in the beginning and 178.2 MB in the end (delta: -78.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-10-22 01:11:12,370 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.45 ms. Allocated memory is still 201.9 MB. Free memory was 178.2 MB in the beginning and 176.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2020-10-22 01:11:12,370 INFO L168 Benchmark]: Boogie Preprocessor took 20.19 ms. Allocated memory is still 201.9 MB. Free memory was 176.6 MB in the beginning and 175.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-22 01:11:12,370 INFO L168 Benchmark]: RCFGBuilder took 399.88 ms. Allocated memory is still 201.9 MB. Free memory was 175.3 MB in the beginning and 157.5 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2020-10-22 01:11:12,371 INFO L168 Benchmark]: TraceAbstraction took 83005.67 ms. Allocated memory was 201.9 MB in the beginning and 534.2 MB in the end (delta: 332.4 MB). Free memory was 156.8 MB in the beginning and 471.2 MB in the end (delta: -314.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. [2020-10-22 01:11:12,373 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 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 330.44 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.3 MB in the beginning and 178.2 MB in the end (delta: -78.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 38.45 ms. Allocated memory is still 201.9 MB. Free memory was 178.2 MB in the beginning and 176.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.19 ms. Allocated memory is still 201.9 MB. Free memory was 176.6 MB in the beginning and 175.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 399.88 ms. Allocated memory is still 201.9 MB. Free memory was 175.3 MB in the beginning and 157.5 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 83005.67 ms. Allocated memory was 201.9 MB in the beginning and 534.2 MB in the end (delta: 332.4 MB). Free memory was 156.8 MB in the beginning and 471.2 MB in the end (delta: -314.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 512 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 104 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 81 PlacesBefore, 39 PlacesAfterwards, 77 TransitionsBefore, 35 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 5 FixpointIterations, 25 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, 4010 MoverChecksTotal - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int counter = 0; [L23] 0 int val = 0; [L25] 0 pthread_t first_thread_id; [L26] 0 pthread_t second_thread_id; [L27] 0 pthread_t third_thread_id; [L29] FCALL, FORK 0 pthread_create(&first_thread_id, NULL, foo, &val) VAL [counter=0, n={8:0}] [L30] FCALL, FORK 0 pthread_create(&second_thread_id, NULL, foo, &val) VAL [counter=0, n={8:0}] [L16] 2 int *x = (int *)n; [L17] 2 ++counter VAL [++counter=1, counter=0, n={8:0}, n={8:0}, x={8:0}] [L31] FCALL, FORK 0 pthread_create(&third_thread_id, NULL, foo, &val) VAL [++counter=1, counter=0, n={8:0}, n={8:0}, x={8:0}] [L16] 3 int *x = (int *)n; [L17] EXPR 3 ++counter VAL [++counter=1, counter=1, n={8:0}, n={8:0}, x={8:0}] [L17] 3 *x = ++counter [L18] 3 return 0; [L17] 2 ++counter VAL [++counter=1, \result={0:0}, counter=2, n={8:0}, n={8:0}, x={8:0}] [L16] 1 int *x = (int *)n; [L17] EXPR 1 ++counter VAL [++counter=3, \result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L33] 0 \read(first_thread_id) VAL [++counter=3, \result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L17] 1 *x = ++counter [L18] 1 return 0; [L17] 2 *x = ++counter [L18] 2 return 0; [L33] FCALL, JOIN 1 pthread_join(first_thread_id, NULL) VAL [\result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L34] 0 \read(second_thread_id) VAL [\result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L34] FCALL, JOIN 2 pthread_join(second_thread_id, NULL) VAL [\result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L35] 0 \read(third_thread_id) VAL [\result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L35] FCALL, JOIN 3 pthread_join(third_thread_id, NULL) VAL [\result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] [L37] FCALL 0 IdentifierExpression[val] [L37] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, counter=3, n={8:0}, n={8:0}, x={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 82.8s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 58.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 472 SDtfs, 4575 SDslu, 3890 SDs, 0 SdLazy, 11745 SolverSat, 1077 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 673 GetRequests, 91 SyntacticMatches, 17 SemanticMatches, 565 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10162 ImplicationChecksByTransitivity, 50.9s 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, 4.6s 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...