/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/svcomp/pthread-wmm/mix056_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 00:48:38,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 00:48:38,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 00:48:38,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 00:48:38,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 00:48:38,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 00:48:38,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 00:48:38,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 00:48:38,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 00:48:38,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 00:48:38,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 00:48:38,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 00:48:38,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 00:48:38,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 00:48:38,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 00:48:38,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 00:48:38,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 00:48:38,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 00:48:38,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 00:48:38,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 00:48:38,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 00:48:38,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 00:48:38,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 00:48:38,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 00:48:38,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 00:48:38,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 00:48:38,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 00:48:38,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 00:48:38,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 00:48:38,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 00:48:38,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 00:48:38,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 00:48:38,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 00:48:38,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 00:48:38,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 00:48:38,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 00:48:38,223 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 [2020-10-06 00:48:38,259 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 00:48:38,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 00:48:38,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 00:48:38,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 00:48:38,261 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 00:48:38,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 00:48:38,262 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 00:48:38,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 00:48:38,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 00:48:38,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 00:48:38,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 00:48:38,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 00:48:38,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 00:48:38,264 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 00:48:38,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 00:48:38,265 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 00:48:38,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 00:48:38,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 00:48:38,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 00:48:38,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 00:48:38,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 00:48:38,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:48:38,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 00:48:38,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 00:48:38,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 00:48:38,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 00:48:38,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 00:48:38,267 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 00:48:38,267 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 00:48:38,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 00:48:38,268 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 00:48:38,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 00:48:38,560 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 00:48:38,565 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 00:48:38,566 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 00:48:38,567 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 00:48:38,568 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix056_tso.opt.i [2020-10-06 00:48:38,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea8c1a9ba/e5377494120640ff98786bd93a865c38/FLAG0e406d51b [2020-10-06 00:48:39,194 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 00:48:39,195 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix056_tso.opt.i [2020-10-06 00:48:39,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea8c1a9ba/e5377494120640ff98786bd93a865c38/FLAG0e406d51b [2020-10-06 00:48:39,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea8c1a9ba/e5377494120640ff98786bd93a865c38 [2020-10-06 00:48:39,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 00:48:39,486 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 00:48:39,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 00:48:39,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 00:48:39,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 00:48:39,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:48:39" (1/1) ... [2020-10-06 00:48:39,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76375823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:39, skipping insertion in model container [2020-10-06 00:48:39,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:48:39" (1/1) ... [2020-10-06 00:48:39,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 00:48:39,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 00:48:40,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:48:40,133 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 00:48:40,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:48:40,264 INFO L208 MainTranslator]: Completed translation [2020-10-06 00:48:40,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:40 WrapperNode [2020-10-06 00:48:40,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 00:48:40,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 00:48:40,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 00:48:40,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 00:48:40,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:40" (1/1) ... [2020-10-06 00:48:40,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:40" (1/1) ... [2020-10-06 00:48:40,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 00:48:40,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 00:48:40,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 00:48:40,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 00:48:40,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:40" (1/1) ... [2020-10-06 00:48:40,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:40" (1/1) ... [2020-10-06 00:48:40,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:40" (1/1) ... [2020-10-06 00:48:40,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:40" (1/1) ... [2020-10-06 00:48:40,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:40" (1/1) ... [2020-10-06 00:48:40,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:40" (1/1) ... [2020-10-06 00:48:40,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:40" (1/1) ... [2020-10-06 00:48:40,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 00:48:40,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 00:48:40,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 00:48:40,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 00:48:40,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:40" (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 [2020-10-06 00:48:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 00:48:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 00:48:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 00:48:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 00:48:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 00:48:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 00:48:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 00:48:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 00:48:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 00:48:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 00:48:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 00:48:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 00:48:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 00:48:40,493 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 00:48:42,361 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 00:48:42,362 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-06 00:48:42,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:48:42 BoogieIcfgContainer [2020-10-06 00:48:42,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 00:48:42,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 00:48:42,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 00:48:42,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 00:48:42,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 12:48:39" (1/3) ... [2020-10-06 00:48:42,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f91020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:48:42, skipping insertion in model container [2020-10-06 00:48:42,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:48:40" (2/3) ... [2020-10-06 00:48:42,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f91020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:48:42, skipping insertion in model container [2020-10-06 00:48:42,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:48:42" (3/3) ... [2020-10-06 00:48:42,373 INFO L109 eAbstractionObserver]: Analyzing ICFG mix056_tso.opt.i [2020-10-06 00:48:42,384 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 00:48:42,384 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 00:48:42,392 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 00:48:42,393 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 00:48:42,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,423 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,423 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,423 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,425 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,425 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,428 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,428 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,428 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,429 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,435 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,435 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,437 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,437 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,441 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,441 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,441 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,441 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,442 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,442 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,442 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,442 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,442 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,443 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,443 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,443 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:48:42,460 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-06 00:48:42,482 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 00:48:42,482 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 00:48:42,482 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 00:48:42,482 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 00:48:42,482 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 00:48:42,482 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 00:48:42,483 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 00:48:42,483 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 00:48:42,499 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 91 transitions, 197 flow [2020-10-06 00:48:42,501 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2020-10-06 00:48:42,546 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2020-10-06 00:48:42,546 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:48:42,552 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-06 00:48:42,555 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2020-10-06 00:48:42,580 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2020-10-06 00:48:42,580 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:48:42,581 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-06 00:48:42,583 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1536 [2020-10-06 00:48:42,584 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 00:48:43,090 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-06 00:48:43,213 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-06 00:48:44,078 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-06 00:48:44,227 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-06 00:48:45,476 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 229 DAG size of output: 188 [2020-10-06 00:48:45,518 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 1] term [2020-10-06 00:48:45,519 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:45,520 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-06 00:48:45,521 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:46,167 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 106 [2020-10-06 00:48:47,171 WARN L193 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 188 [2020-10-06 00:48:47,192 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 1] term [2020-10-06 00:48:47,193 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:47,198 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-06 00:48:47,198 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:48,020 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2020-10-06 00:48:48,394 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-06 00:48:50,077 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 243 DAG size of output: 203 [2020-10-06 00:48:50,099 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 2, 1] term [2020-10-06 00:48:50,099 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:50,103 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-06 00:48:50,105 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:48:51,455 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 159 DAG size of output: 130 [2020-10-06 00:48:51,698 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-06 00:48:51,832 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-06 00:48:51,840 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4008 [2020-10-06 00:48:51,840 INFO L214 etLargeBlockEncoding]: Total number of compositions: 78 [2020-10-06 00:48:51,843 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 25 transitions, 65 flow [2020-10-06 00:48:51,881 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 650 states. [2020-10-06 00:48:51,884 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states. [2020-10-06 00:48:51,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-06 00:48:51,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:51,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:51,892 INFO L427 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:51,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:51,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1913445642, now seen corresponding path program 1 times [2020-10-06 00:48:51,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:51,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326992949] [2020-10-06 00:48:51,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:52,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:52,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326992949] [2020-10-06 00:48:52,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:52,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:48:52,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [802580862] [2020-10-06 00:48:52,225 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:52,228 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:52,246 INFO L258 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-06 00:48:52,247 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:52,253 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:52,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:48:52,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:52,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:48:52,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:52,273 INFO L87 Difference]: Start difference. First operand 650 states. Second operand 3 states. [2020-10-06 00:48:52,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:52,359 INFO L93 Difference]: Finished difference Result 550 states and 1693 transitions. [2020-10-06 00:48:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:48:52,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-06 00:48:52,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:52,381 INFO L225 Difference]: With dead ends: 550 [2020-10-06 00:48:52,382 INFO L226 Difference]: Without dead ends: 450 [2020-10-06 00:48:52,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:52,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-10-06 00:48:52,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-10-06 00:48:52,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-06 00:48:52,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1358 transitions. [2020-10-06 00:48:52,477 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1358 transitions. Word has length 7 [2020-10-06 00:48:52,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:52,478 INFO L479 AbstractCegarLoop]: Abstraction has 450 states and 1358 transitions. [2020-10-06 00:48:52,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:48:52,478 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1358 transitions. [2020-10-06 00:48:52,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 00:48:52,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:52,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:52,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 00:48:52,480 INFO L427 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:52,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:52,481 INFO L82 PathProgramCache]: Analyzing trace with hash 575294358, now seen corresponding path program 1 times [2020-10-06 00:48:52,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:52,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80184143] [2020-10-06 00:48:52,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:52,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:52,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80184143] [2020-10-06 00:48:52,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:52,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:48:52,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [525190585] [2020-10-06 00:48:52,640 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:52,641 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:52,643 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 00:48:52,643 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:52,644 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:52,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:48:52,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:52,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:48:52,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:52,646 INFO L87 Difference]: Start difference. First operand 450 states and 1358 transitions. Second operand 3 states. [2020-10-06 00:48:52,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:52,662 INFO L93 Difference]: Finished difference Result 440 states and 1320 transitions. [2020-10-06 00:48:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:48:52,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 00:48:52,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:52,669 INFO L225 Difference]: With dead ends: 440 [2020-10-06 00:48:52,669 INFO L226 Difference]: Without dead ends: 440 [2020-10-06 00:48:52,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:48:52,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-06 00:48:52,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2020-10-06 00:48:52,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2020-10-06 00:48:52,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 1320 transitions. [2020-10-06 00:48:52,704 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 1320 transitions. Word has length 9 [2020-10-06 00:48:52,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:52,704 INFO L479 AbstractCegarLoop]: Abstraction has 440 states and 1320 transitions. [2020-10-06 00:48:52,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:48:52,704 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 1320 transitions. [2020-10-06 00:48:52,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 00:48:52,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:52,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:52,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 00:48:52,706 INFO L427 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:52,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:52,707 INFO L82 PathProgramCache]: Analyzing trace with hash 654255379, now seen corresponding path program 1 times [2020-10-06 00:48:52,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:52,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754103819] [2020-10-06 00:48:52,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:52,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:52,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754103819] [2020-10-06 00:48:52,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:52,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:48:52,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [775931253] [2020-10-06 00:48:52,814 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:52,815 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:52,818 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-10-06 00:48:52,818 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:52,845 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-06 00:48:52,845 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:52,848 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:52,857 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:52,859 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:52,865 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:52,871 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:52,879 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:52,882 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:52,884 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:52,886 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:52,890 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:52,899 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:52,914 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 00:48:52,917 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:52,918 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:52,923 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:52,934 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:52,940 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:52,993 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4182#(and (= ~y~0 0) (= ~y$w_buff0_used~0 0) (= (mod ~y$w_buff1_used~0 256) 0))] [2020-10-06 00:48:52,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:48:52,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:52,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:48:52,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:52,995 INFO L87 Difference]: Start difference. First operand 440 states and 1320 transitions. Second operand 5 states. [2020-10-06 00:48:53,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:53,042 INFO L93 Difference]: Finished difference Result 434 states and 1298 transitions. [2020-10-06 00:48:53,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:48:53,043 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-06 00:48:53,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:53,047 INFO L225 Difference]: With dead ends: 434 [2020-10-06 00:48:53,048 INFO L226 Difference]: Without dead ends: 434 [2020-10-06 00:48:53,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:53,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-06 00:48:53,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2020-10-06 00:48:53,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-10-06 00:48:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1298 transitions. [2020-10-06 00:48:53,068 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1298 transitions. Word has length 10 [2020-10-06 00:48:53,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:53,068 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 1298 transitions. [2020-10-06 00:48:53,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:48:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1298 transitions. [2020-10-06 00:48:53,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:48:53,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:53,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:53,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 00:48:53,071 INFO L427 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:53,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:53,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1192921599, now seen corresponding path program 1 times [2020-10-06 00:48:53,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:53,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490197976] [2020-10-06 00:48:53,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:53,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:53,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490197976] [2020-10-06 00:48:53,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:53,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:48:53,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1159767219] [2020-10-06 00:48:53,154 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:53,156 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:53,158 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 19 transitions. [2020-10-06 00:48:53,158 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:53,172 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-06 00:48:53,173 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:53,174 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:53,181 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-06 00:48:53,188 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-06 00:48:53,222 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:53,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:48:53,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:53,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:48:53,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:48:53,223 INFO L87 Difference]: Start difference. First operand 434 states and 1298 transitions. Second operand 4 states. [2020-10-06 00:48:53,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:53,285 INFO L93 Difference]: Finished difference Result 438 states and 1309 transitions. [2020-10-06 00:48:53,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:53,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 00:48:53,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:53,291 INFO L225 Difference]: With dead ends: 438 [2020-10-06 00:48:53,291 INFO L226 Difference]: Without dead ends: 438 [2020-10-06 00:48:53,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:48:53,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-10-06 00:48:53,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2020-10-06 00:48:53,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-10-06 00:48:53,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 1309 transitions. [2020-10-06 00:48:53,308 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 1309 transitions. Word has length 11 [2020-10-06 00:48:53,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:53,309 INFO L479 AbstractCegarLoop]: Abstraction has 438 states and 1309 transitions. [2020-10-06 00:48:53,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:48:53,309 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 1309 transitions. [2020-10-06 00:48:53,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:48:53,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:53,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:53,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 00:48:53,312 INFO L427 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:53,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:53,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1192920235, now seen corresponding path program 1 times [2020-10-06 00:48:53,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:53,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90807989] [2020-10-06 00:48:53,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:53,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90807989] [2020-10-06 00:48:53,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:53,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:48:53,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2039325825] [2020-10-06 00:48:53,504 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:53,506 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:53,509 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 21 transitions. [2020-10-06 00:48:53,509 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:53,517 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:53,517 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:53,519 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:53,522 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:53,525 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:53,526 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 00:48:53,527 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:53,537 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:53,576 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:53,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:48:53,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:53,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:48:53,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:53,578 INFO L87 Difference]: Start difference. First operand 438 states and 1309 transitions. Second operand 5 states. [2020-10-06 00:48:53,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:53,626 INFO L93 Difference]: Finished difference Result 426 states and 1265 transitions. [2020-10-06 00:48:53,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:53,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-06 00:48:53,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:53,631 INFO L225 Difference]: With dead ends: 426 [2020-10-06 00:48:53,631 INFO L226 Difference]: Without dead ends: 426 [2020-10-06 00:48:53,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:53,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-10-06 00:48:53,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2020-10-06 00:48:53,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-06 00:48:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1265 transitions. [2020-10-06 00:48:53,646 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1265 transitions. Word has length 11 [2020-10-06 00:48:53,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:53,646 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 1265 transitions. [2020-10-06 00:48:53,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:48:53,647 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1265 transitions. [2020-10-06 00:48:53,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:48:53,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:53,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:53,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 00:48:53,648 INFO L427 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:53,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:53,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1194181749, now seen corresponding path program 2 times [2020-10-06 00:48:53,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:53,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378769019] [2020-10-06 00:48:53,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:53,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:53,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378769019] [2020-10-06 00:48:53,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:53,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:48:53,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1762379569] [2020-10-06 00:48:53,845 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:53,847 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:53,850 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2020-10-06 00:48:53,850 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:53,874 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:53,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:48:53,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:53,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:48:53,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:53,876 INFO L87 Difference]: Start difference. First operand 426 states and 1265 transitions. Second operand 5 states. [2020-10-06 00:48:53,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:53,942 INFO L93 Difference]: Finished difference Result 422 states and 1250 transitions. [2020-10-06 00:48:53,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:53,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-06 00:48:53,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:53,947 INFO L225 Difference]: With dead ends: 422 [2020-10-06 00:48:53,948 INFO L226 Difference]: Without dead ends: 422 [2020-10-06 00:48:53,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:53,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-10-06 00:48:53,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 418. [2020-10-06 00:48:53,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-06 00:48:53,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1239 transitions. [2020-10-06 00:48:53,967 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1239 transitions. Word has length 11 [2020-10-06 00:48:53,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:53,967 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 1239 transitions. [2020-10-06 00:48:53,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:48:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1239 transitions. [2020-10-06 00:48:53,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:48:53,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:53,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:53,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 00:48:53,969 INFO L427 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:53,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:53,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1674134258, now seen corresponding path program 1 times [2020-10-06 00:48:53,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:53,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041201411] [2020-10-06 00:48:53,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:54,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041201411] [2020-10-06 00:48:54,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:54,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:48:54,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1895015383] [2020-10-06 00:48:54,046 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:54,048 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:54,052 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 20 transitions. [2020-10-06 00:48:54,053 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:54,062 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:54,111 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:54,112 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:54,118 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:54,139 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:54,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:48:54,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:54,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:48:54,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:54,140 INFO L87 Difference]: Start difference. First operand 418 states and 1239 transitions. Second operand 5 states. [2020-10-06 00:48:54,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:54,188 INFO L93 Difference]: Finished difference Result 414 states and 1224 transitions. [2020-10-06 00:48:54,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:54,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-06 00:48:54,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:54,194 INFO L225 Difference]: With dead ends: 414 [2020-10-06 00:48:54,194 INFO L226 Difference]: Without dead ends: 414 [2020-10-06 00:48:54,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:54,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-10-06 00:48:54,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 410. [2020-10-06 00:48:54,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-10-06 00:48:54,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 1213 transitions. [2020-10-06 00:48:54,214 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 1213 transitions. Word has length 12 [2020-10-06 00:48:54,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:54,214 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 1213 transitions. [2020-10-06 00:48:54,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:48:54,215 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 1213 transitions. [2020-10-06 00:48:54,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:48:54,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:54,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:54,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 00:48:54,216 INFO L427 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:54,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:54,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1674135591, now seen corresponding path program 1 times [2020-10-06 00:48:54,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:54,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701090664] [2020-10-06 00:48:54,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:54,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:54,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701090664] [2020-10-06 00:48:54,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:54,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 00:48:54,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [213896686] [2020-10-06 00:48:54,352 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:54,354 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:54,359 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-10-06 00:48:54,359 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:54,375 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:54,378 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:54,379 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:54,392 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:54,396 INFO L603 QuantifierPusher]: Distributing 5 disjuncts over 4 conjuncts [2020-10-06 00:48:54,403 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:54,405 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:54,412 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 00:48:54,469 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10594#(and (= (* 256 (div ~y$w_buff1_used~0 256)) ~y$w_buff1_used~0) (<= ~y$r_buff0_thd0~0 (* 256 (div ~y$r_buff0_thd0~0 256))))] [2020-10-06 00:48:54,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 00:48:54,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:54,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 00:48:54,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-06 00:48:54,471 INFO L87 Difference]: Start difference. First operand 410 states and 1213 transitions. Second operand 7 states. [2020-10-06 00:48:54,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:54,603 INFO L93 Difference]: Finished difference Result 434 states and 1271 transitions. [2020-10-06 00:48:54,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:48:54,604 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-10-06 00:48:54,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:54,607 INFO L225 Difference]: With dead ends: 434 [2020-10-06 00:48:54,608 INFO L226 Difference]: Without dead ends: 434 [2020-10-06 00:48:54,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-06 00:48:54,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-06 00:48:54,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 426. [2020-10-06 00:48:54,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-06 00:48:54,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1253 transitions. [2020-10-06 00:48:54,624 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1253 transitions. Word has length 12 [2020-10-06 00:48:54,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:54,625 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 1253 transitions. [2020-10-06 00:48:54,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 00:48:54,625 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1253 transitions. [2020-10-06 00:48:54,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:48:54,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:54,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:54,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 00:48:54,627 INFO L427 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:54,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:54,628 INFO L82 PathProgramCache]: Analyzing trace with hash 358553942, now seen corresponding path program 1 times [2020-10-06 00:48:54,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:54,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310100151] [2020-10-06 00:48:54,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:54,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:54,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310100151] [2020-10-06 00:48:54,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:54,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-06 00:48:54,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1218512963] [2020-10-06 00:48:54,844 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:54,846 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:54,852 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 21 transitions. [2020-10-06 00:48:54,852 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:54,862 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 4, 3, 2, 1] term [2020-10-06 00:48:54,862 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:54,863 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:54,865 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:54,872 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:54,877 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:54,879 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 00:48:54,886 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:54,905 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:48:54,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 00:48:54,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:54,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 00:48:54,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-06 00:48:54,907 INFO L87 Difference]: Start difference. First operand 426 states and 1253 transitions. Second operand 7 states. [2020-10-06 00:48:54,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:54,998 INFO L93 Difference]: Finished difference Result 498 states and 1475 transitions. [2020-10-06 00:48:55,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:48:55,000 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-06 00:48:55,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:55,004 INFO L225 Difference]: With dead ends: 498 [2020-10-06 00:48:55,004 INFO L226 Difference]: Without dead ends: 498 [2020-10-06 00:48:55,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-06 00:48:55,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-06 00:48:55,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 474. [2020-10-06 00:48:55,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-10-06 00:48:55,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 1393 transitions. [2020-10-06 00:48:55,021 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 1393 transitions. Word has length 13 [2020-10-06 00:48:55,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:55,022 INFO L479 AbstractCegarLoop]: Abstraction has 474 states and 1393 transitions. [2020-10-06 00:48:55,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 00:48:55,022 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 1393 transitions. [2020-10-06 00:48:55,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:48:55,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:55,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:55,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-06 00:48:55,024 INFO L427 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:55,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:55,024 INFO L82 PathProgramCache]: Analyzing trace with hash 358593932, now seen corresponding path program 2 times [2020-10-06 00:48:55,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:55,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384977658] [2020-10-06 00:48:55,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:55,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:55,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384977658] [2020-10-06 00:48:55,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:55,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-06 00:48:55,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [413271950] [2020-10-06 00:48:55,321 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:55,323 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:55,326 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-10-06 00:48:55,327 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:55,332 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:48:55,334 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:55,335 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:48:55,348 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 4, 3, 2, 1] term [2020-10-06 00:48:55,349 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:48:55,401 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [13347#(and (<= ~y$r_buff0_thd0~0 (* 256 (div ~y$r_buff0_thd0~0 256))) (= ~y$w_buff1_used~0 0) (= 2 ~y$w_buff0~0) (<= 0 ~y$r_buff0_thd0~0) (= ~y$r_buff0_thd2~0 0))] [2020-10-06 00:48:55,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-06 00:48:55,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:55,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-06 00:48:55,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-06 00:48:55,403 INFO L87 Difference]: Start difference. First operand 474 states and 1393 transitions. Second operand 8 states. [2020-10-06 00:48:55,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:55,564 INFO L93 Difference]: Finished difference Result 574 states and 1624 transitions. [2020-10-06 00:48:55,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 00:48:55,566 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-10-06 00:48:55,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:55,570 INFO L225 Difference]: With dead ends: 574 [2020-10-06 00:48:55,570 INFO L226 Difference]: Without dead ends: 502 [2020-10-06 00:48:55,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-06 00:48:55,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-10-06 00:48:55,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 430. [2020-10-06 00:48:55,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-06 00:48:55,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1228 transitions. [2020-10-06 00:48:55,587 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1228 transitions. Word has length 13 [2020-10-06 00:48:55,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:55,588 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 1228 transitions. [2020-10-06 00:48:55,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-06 00:48:55,588 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1228 transitions. [2020-10-06 00:48:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:48:55,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:48:55,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:48:55,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-06 00:48:55,590 INFO L427 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:48:55,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:48:55,590 INFO L82 PathProgramCache]: Analyzing trace with hash 359870388, now seen corresponding path program 1 times [2020-10-06 00:48:55,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:48:55,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472466654] [2020-10-06 00:48:55,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:48:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:48:55,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:48:55,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472466654] [2020-10-06 00:48:55,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:48:55,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:48:55,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1260297671] [2020-10-06 00:48:55,653 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:48:55,655 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:48:55,659 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 27 transitions. [2020-10-06 00:48:55,659 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:48:55,682 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:48:55,687 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [14788#(= (mod ~main$tmp_guard0~0 256) 0)] [2020-10-06 00:48:55,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:48:55,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:48:55,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:48:55,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:48:55,689 INFO L87 Difference]: Start difference. First operand 430 states and 1228 transitions. Second operand 5 states. [2020-10-06 00:48:55,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:48:55,717 INFO L93 Difference]: Finished difference Result 302 states and 758 transitions. [2020-10-06 00:48:55,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:48:55,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-06 00:48:55,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:48:55,719 INFO L225 Difference]: With dead ends: 302 [2020-10-06 00:48:55,719 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 00:48:55,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:48:55,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 00:48:55,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 00:48:55,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 00:48:55,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 00:48:55,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-06 00:48:55,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:48:55,722 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 00:48:55,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:48:55,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 00:48:55,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 00:48:55,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-06 00:48:55,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 12:48:55 BasicIcfg [2020-10-06 00:48:55,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 00:48:55,731 INFO L168 Benchmark]: Toolchain (without parser) took 16243.69 ms. Allocated memory was 141.0 MB in the beginning and 364.4 MB in the end (delta: 223.3 MB). Free memory was 101.1 MB in the beginning and 85.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 238.6 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:55,737 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 00:48:55,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.57 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 100.9 MB in the beginning and 156.3 MB in the end (delta: -55.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:55,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.60 ms. Allocated memory is still 203.9 MB. Free memory was 156.3 MB in the beginning and 153.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:55,741 INFO L168 Benchmark]: Boogie Preprocessor took 62.58 ms. Allocated memory is still 203.9 MB. Free memory was 153.8 MB in the beginning and 151.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:55,749 INFO L168 Benchmark]: RCFGBuilder took 1956.83 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 151.2 MB in the beginning and 190.0 MB in the end (delta: -38.8 MB). Peak memory consumption was 99.8 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:55,750 INFO L168 Benchmark]: TraceAbstraction took 13362.18 ms. Allocated memory was 246.9 MB in the beginning and 364.4 MB in the end (delta: 117.4 MB). Free memory was 188.3 MB in the beginning and 85.8 MB in the end (delta: 102.5 MB). Peak memory consumption was 219.9 MB. Max. memory is 7.1 GB. [2020-10-06 00:48:55,755 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 778.57 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 100.9 MB in the beginning and 156.3 MB in the end (delta: -55.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 78.60 ms. Allocated memory is still 203.9 MB. Free memory was 156.3 MB in the beginning and 153.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.58 ms. Allocated memory is still 203.9 MB. Free memory was 153.8 MB in the beginning and 151.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1956.83 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 151.2 MB in the beginning and 190.0 MB in the end (delta: -38.8 MB). Peak memory consumption was 99.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13362.18 ms. Allocated memory was 246.9 MB in the beginning and 364.4 MB in the end (delta: 117.4 MB). Free memory was 188.3 MB in the beginning and 85.8 MB in the end (delta: 102.5 MB). Peak memory consumption was 219.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 9.3s, 99 ProgramPointsBefore, 35 ProgramPointsAfterwards, 91 TransitionsBefore, 25 TransitionsAfterwards, 1536 CoEnabledTransitionPairs, 8 FixpointIterations, 31 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 797 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4008 CheckedPairsTotal, 78 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 90 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.3s, HoareTripleCheckerStatistics: 235 SDtfs, 238 SDslu, 341 SDs, 0 SdLazy, 218 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=650occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 112 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 12479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...