/usr/bin/java -Xmx16000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:11:43,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:11:43,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:11:43,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:11:43,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:11:43,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:11:43,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:11:43,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:11:43,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:11:43,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:11:43,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:11:43,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:11:43,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:11:43,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:11:43,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:11:43,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:11:43,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:11:43,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:11:43,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:11:43,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:11:43,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:11:43,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:11:43,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:11:43,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:11:43,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 15:11:43,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 15:11:43,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 15:11:43,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 15:11:43,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 15:11:43,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 15:11:43,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:11:43,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:11:43,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:11:43,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:11:43,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:11:43,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:11:43,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:11:43,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:11:43,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:11:43,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:11:43,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:11:43,247 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 15:11:43,289 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:11:43,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:11:43,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:11:43,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:11:43,292 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:11:43,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:11:43,292 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:11:43,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:11:43,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:11:43,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:11:43,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:11:43,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:11:43,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:11:43,295 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:11:43,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:11:43,295 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:11:43,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:11:43,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:11:43,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:11:43,296 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:11:43,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:11:43,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:11:43,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:11:43,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:11:43,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:11:43,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:11:43,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:11:43,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:11:43,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:11:43,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:11:43,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:11:43,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:11:43,625 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:11:43,626 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:11:43,626 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:11:43,627 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2020-10-11 15:11:43,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21c8ed831/8628783f58d44c5382e3ddce026a8c32/FLAGeaa5d27db [2020-10-11 15:11:44,209 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:11:44,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2020-10-11 15:11:44,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21c8ed831/8628783f58d44c5382e3ddce026a8c32/FLAGeaa5d27db [2020-10-11 15:11:44,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21c8ed831/8628783f58d44c5382e3ddce026a8c32 [2020-10-11 15:11:44,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:11:44,521 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:11:44,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:11:44,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:11:44,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:11:44,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:11:44" (1/1) ... [2020-10-11 15:11:44,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c8a634c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44, skipping insertion in model container [2020-10-11 15:11:44,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:11:44" (1/1) ... [2020-10-11 15:11:44,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:11:44,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:11:44,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:11:44,930 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:11:45,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:11:45,202 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:11:45,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:45 WrapperNode [2020-10-11 15:11:45,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:11:45,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:11:45,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:11:45,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:11:45,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:45" (1/1) ... [2020-10-11 15:11:45,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:45" (1/1) ... [2020-10-11 15:11:45,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:11:45,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:11:45,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:11:45,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:11:45,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:45" (1/1) ... [2020-10-11 15:11:45,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:45" (1/1) ... [2020-10-11 15:11:45,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:45" (1/1) ... [2020-10-11 15:11:45,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:45" (1/1) ... [2020-10-11 15:11:45,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:45" (1/1) ... [2020-10-11 15:11:45,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:45" (1/1) ... [2020-10-11 15:11:45,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:45" (1/1) ... [2020-10-11 15:11:45,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:11:45,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:11:45,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:11:45,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:11:45,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:11:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:11:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:11:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:11:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:11:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:11:45,361 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:11:45,361 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:11:45,362 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:11:45,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:11:45,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:11:45,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:11:45,365 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:11:45,683 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:11:45,684 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:11:45,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:11:45 BoogieIcfgContainer [2020-10-11 15:11:45,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:11:45,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:11:45,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:11:45,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:11:45,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:11:44" (1/3) ... [2020-10-11 15:11:45,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f92ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:11:45, skipping insertion in model container [2020-10-11 15:11:45,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:45" (2/3) ... [2020-10-11 15:11:45,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f92ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:11:45, skipping insertion in model container [2020-10-11 15:11:45,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:11:45" (3/3) ... [2020-10-11 15:11:45,696 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_pso.oepc.i [2020-10-11 15:11:45,708 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:11:45,709 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:11:45,716 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:11:45,717 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:11:45,763 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,763 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,763 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,764 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,764 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,765 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,765 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,766 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,766 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,766 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,766 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,774 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,775 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,780 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,797 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-11 15:11:45,820 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:11:45,820 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:11:45,823 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:11:45,823 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:11:45,823 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:11:45,824 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:11:45,824 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:11:45,824 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:11:45,836 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:11:45,839 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-11 15:11:45,843 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-11 15:11:45,845 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-10-11 15:11:45,883 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-10-11 15:11:45,883 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:11:45,888 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-11 15:11:45,890 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-11 15:11:47,225 INFO L132 LiptonReduction]: Checked pairs total: 1338 [2020-10-11 15:11:47,225 INFO L134 LiptonReduction]: Total number of compositions: 51 [2020-10-11 15:11:47,232 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-11 15:11:47,243 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-11 15:11:47,245 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-11 15:11:47,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-11 15:11:47,251 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:47,252 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-11 15:11:47,252 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:47,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:47,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1873752150, now seen corresponding path program 1 times [2020-10-11 15:11:47,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:47,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013834925] [2020-10-11 15:11:47,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:47,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:47,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013834925] [2020-10-11 15:11:47,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:47,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:11:47,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705143498] [2020-10-11 15:11:47,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:47,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:47,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:47,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:47,521 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2020-10-11 15:11:47,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:47,578 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-10-11 15:11:47,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:11:47,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-10-11 15:11:47,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:47,590 INFO L225 Difference]: With dead ends: 63 [2020-10-11 15:11:47,590 INFO L226 Difference]: Without dead ends: 40 [2020-10-11 15:11:47,592 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:47,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-11 15:11:47,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-11 15:11:47,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-11 15:11:47,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-11 15:11:47,632 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 6 [2020-10-11 15:11:47,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:47,632 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-11 15:11:47,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:47,633 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-11 15:11:47,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 15:11:47,634 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:47,634 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:47,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:11:47,634 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:47,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:47,635 INFO L82 PathProgramCache]: Analyzing trace with hash -771561330, now seen corresponding path program 1 times [2020-10-11 15:11:47,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:47,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046718447] [2020-10-11 15:11:47,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:47,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046718447] [2020-10-11 15:11:47,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:47,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:47,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069474353] [2020-10-11 15:11:47,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:11:47,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:47,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:11:47,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:47,730 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-10-11 15:11:47,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:47,764 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-10-11 15:11:47,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:11:47,765 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-11 15:11:47,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:47,766 INFO L225 Difference]: With dead ends: 35 [2020-10-11 15:11:47,766 INFO L226 Difference]: Without dead ends: 28 [2020-10-11 15:11:47,767 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:11:47,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-11 15:11:47,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-11 15:11:47,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-11 15:11:47,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-10-11 15:11:47,772 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-10-11 15:11:47,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:47,772 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-10-11 15:11:47,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:11:47,773 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-10-11 15:11:47,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:11:47,773 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:47,773 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:47,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:11:47,774 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:47,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:47,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1059449318, now seen corresponding path program 1 times [2020-10-11 15:11:47,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:47,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750696613] [2020-10-11 15:11:47,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:47,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:47,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750696613] [2020-10-11 15:11:47,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:47,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:47,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247961838] [2020-10-11 15:11:47,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:47,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:47,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:47,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:47,829 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 4 states. [2020-10-11 15:11:47,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:47,849 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-10-11 15:11:47,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:11:47,849 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:11:47,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:47,850 INFO L225 Difference]: With dead ends: 35 [2020-10-11 15:11:47,850 INFO L226 Difference]: Without dead ends: 22 [2020-10-11 15:11:47,851 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:47,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-11 15:11:47,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-11 15:11:47,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-11 15:11:47,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-11 15:11:47,854 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 12 [2020-10-11 15:11:47,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:47,855 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-11 15:11:47,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:47,855 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-10-11 15:11:47,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:11:47,856 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:47,856 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:47,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:11:47,856 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:47,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:47,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1252547174, now seen corresponding path program 2 times [2020-10-11 15:11:47,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:47,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161793063] [2020-10-11 15:11:47,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:47,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:47,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161793063] [2020-10-11 15:11:47,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:47,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:47,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107342760] [2020-10-11 15:11:47,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:47,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:47,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:47,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:47,906 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 4 states. [2020-10-11 15:11:47,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:47,918 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-10-11 15:11:47,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:11:47,918 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:11:47,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:47,919 INFO L225 Difference]: With dead ends: 21 [2020-10-11 15:11:47,919 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:11:47,919 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:47,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:11:47,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:11:47,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:11:47,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:11:47,921 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-11 15:11:47,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:47,921 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:11:47,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:47,921 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:11:47,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:11:47,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:11:47,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:11:47 BasicIcfg [2020-10-11 15:11:47,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:11:47,928 INFO L168 Benchmark]: Toolchain (without parser) took 3407.18 ms. Allocated memory was 252.7 MB in the beginning and 359.1 MB in the end (delta: 106.4 MB). Free memory was 206.1 MB in the beginning and 174.7 MB in the end (delta: 31.4 MB). Peak memory consumption was 137.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:47,929 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 252.7 MB. Free memory was 228.2 MB in the beginning and 227.4 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-11 15:11:47,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.49 ms. Allocated memory was 252.7 MB in the beginning and 318.2 MB in the end (delta: 65.5 MB). Free memory was 205.2 MB in the beginning and 274.1 MB in the end (delta: -68.8 MB). Peak memory consumption was 31.1 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:47,931 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.51 ms. Allocated memory is still 318.2 MB. Free memory was 274.1 MB in the beginning and 272.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:47,932 INFO L168 Benchmark]: Boogie Preprocessor took 26.68 ms. Allocated memory is still 318.2 MB. Free memory was 272.4 MB in the beginning and 270.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:47,933 INFO L168 Benchmark]: RCFGBuilder took 407.16 ms. Allocated memory is still 318.2 MB. Free memory was 270.7 MB in the beginning and 250.4 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:47,934 INFO L168 Benchmark]: TraceAbstraction took 2237.56 ms. Allocated memory was 318.2 MB in the beginning and 359.1 MB in the end (delta: 40.9 MB). Free memory was 249.5 MB in the beginning and 174.7 MB in the end (delta: 74.8 MB). Peak memory consumption was 115.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:47,939 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 252.7 MB. Free memory was 228.2 MB in the beginning and 227.4 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 682.49 ms. Allocated memory was 252.7 MB in the beginning and 318.2 MB in the end (delta: 65.5 MB). Free memory was 205.2 MB in the beginning and 274.1 MB in the end (delta: -68.8 MB). Peak memory consumption was 31.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.51 ms. Allocated memory is still 318.2 MB. Free memory was 274.1 MB in the beginning and 272.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.68 ms. Allocated memory is still 318.2 MB. Free memory was 272.4 MB in the beginning and 270.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 407.16 ms. Allocated memory is still 318.2 MB. Free memory was 270.7 MB in the beginning and 250.4 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2237.56 ms. Allocated memory was 318.2 MB in the beginning and 359.1 MB in the end (delta: 40.9 MB). Free memory was 249.5 MB in the beginning and 174.7 MB in the end (delta: 74.8 MB). Peak memory consumption was 115.7 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 469 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 33 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 61 PlacesBefore, 22 PlacesAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 51 TotalNumberOfCompositions, 1338 MoverChecksTotal - 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 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 56 SDtfs, 47 SDslu, 68 SDs, 0 SdLazy, 43 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...