/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:17:29,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:17:29,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:17:29,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:17:29,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:17:29,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:17:29,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:17:29,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:17:29,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:17:29,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:17:29,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:17:29,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:17:29,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:17:29,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:17:29,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:17:29,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:17:29,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:17:29,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:17:29,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:17:29,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:17:29,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:17:29,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:17:29,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:17:29,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:17:29,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:17:29,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:17:29,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:17:29,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:17:29,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:17:29,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:17:29,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:17:29,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:17:29,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:17:29,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:17:29,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:17:29,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:17:29,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:17:29,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:17:29,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:17:29,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:17:29,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:17:29,452 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:17:29,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:17:29,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:17:29,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:17:29,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:17:29,474 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:17:29,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:17:29,475 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:17:29,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:17:29,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:17:29,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:17:29,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:17:29,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:17:29,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:17:29,476 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:17:29,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:17:29,476 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:17:29,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:17:29,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:17:29,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:17:29,477 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:17:29,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:17:29,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:17:29,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:17:29,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:17:29,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:17:29,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:17:29,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:17:29,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:17:29,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:17:29,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:17:29,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:17:29,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:17:29,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:17:29,751 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:17:29,752 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:17:29,752 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-10-16 11:17:29,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/049e8650b/abdc6fca7bf34405a549829ba34d51bd/FLAG3e8c0fdb1 [2020-10-16 11:17:30,237 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:17:30,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-10-16 11:17:30,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/049e8650b/abdc6fca7bf34405a549829ba34d51bd/FLAG3e8c0fdb1 [2020-10-16 11:17:30,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/049e8650b/abdc6fca7bf34405a549829ba34d51bd [2020-10-16 11:17:30,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:17:30,575 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:17:30,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:17:30,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:17:30,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:17:30,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:17:30" (1/1) ... [2020-10-16 11:17:30,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5368012f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:30, skipping insertion in model container [2020-10-16 11:17:30,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:17:30" (1/1) ... [2020-10-16 11:17:30,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:17:30,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:17:30,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:17:30,984 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:17:31,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:17:31,232 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:17:31,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31 WrapperNode [2020-10-16 11:17:31,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:17:31,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:17:31,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:17:31,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:17:31,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31" (1/1) ... [2020-10-16 11:17:31,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31" (1/1) ... [2020-10-16 11:17:31,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:17:31,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:17:31,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:17:31,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:17:31,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31" (1/1) ... [2020-10-16 11:17:31,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31" (1/1) ... [2020-10-16 11:17:31,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31" (1/1) ... [2020-10-16 11:17:31,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31" (1/1) ... [2020-10-16 11:17:31,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31" (1/1) ... [2020-10-16 11:17:31,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31" (1/1) ... [2020-10-16 11:17:31,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31" (1/1) ... [2020-10-16 11:17:31,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:17:31,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:17:31,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:17:31,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:17:31,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:17:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:17:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:17:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:17:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:17:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:17:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:17:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:17:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:17:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:17:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:17:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:17:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:17:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:17:31,373 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:17:31,700 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:17:31,700 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:17:31,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:17:31 BoogieIcfgContainer [2020-10-16 11:17:31,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:17:31,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:17:31,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:17:31,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:17:31,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:17:30" (1/3) ... [2020-10-16 11:17:31,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f28c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:17:31, skipping insertion in model container [2020-10-16 11:17:31,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31" (2/3) ... [2020-10-16 11:17:31,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f28c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:17:31, skipping insertion in model container [2020-10-16 11:17:31,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:17:31" (3/3) ... [2020-10-16 11:17:31,720 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-10-16 11:17:31,730 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:17:31,730 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:17:31,736 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:17:31,737 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:17:31,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,774 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,774 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,776 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,777 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,778 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,778 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,784 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,784 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,790 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,791 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,793 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,793 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,794 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,794 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:31,796 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:17:31,810 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:17:31,832 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:17:31,832 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:17:31,832 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:17:31,832 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:17:31,832 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:17:31,833 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:17:31,833 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:17:31,833 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:17:31,847 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:17:31,850 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 11:17:31,853 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 11:17:31,855 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 11:17:31,909 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-16 11:17:31,909 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:17:31,914 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 11:17:31,916 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 11:17:33,547 INFO L132 LiptonReduction]: Checked pairs total: 2810 [2020-10-16 11:17:33,547 INFO L134 LiptonReduction]: Total number of compositions: 60 [2020-10-16 11:17:33,554 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 11:17:33,594 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 11:17:33,597 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 11:17:33,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:17:33,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:33,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:33,622 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:33,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:33,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-10-16 11:17:33,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:33,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978973956] [2020-10-16 11:17:33,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:33,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978973956] [2020-10-16 11:17:33,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:33,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:17:33,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057989509] [2020-10-16 11:17:33,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:17:33,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:33,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:17:33,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:17:33,873 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 11:17:33,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:33,929 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-16 11:17:33,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:17:33,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:17:33,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:33,949 INFO L225 Difference]: With dead ends: 290 [2020-10-16 11:17:33,949 INFO L226 Difference]: Without dead ends: 226 [2020-10-16 11:17:33,951 INFO L677 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 [2020-10-16 11:17:33,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-16 11:17:34,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-16 11:17:34,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-16 11:17:34,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-16 11:17:34,026 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-16 11:17:34,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:34,031 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-16 11:17:34,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:17:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-16 11:17:34,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:17:34,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:34,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:34,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:17:34,034 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:34,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:34,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-10-16 11:17:34,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:34,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217750219] [2020-10-16 11:17:34,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:34,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:34,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217750219] [2020-10-16 11:17:34,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:34,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:17:34,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76083201] [2020-10-16 11:17:34,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:17:34,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:34,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:17:34,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:17:34,115 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-16 11:17:34,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:34,129 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-10-16 11:17:34,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:17:34,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 11:17:34,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:34,134 INFO L225 Difference]: With dead ends: 214 [2020-10-16 11:17:34,134 INFO L226 Difference]: Without dead ends: 214 [2020-10-16 11:17:34,137 INFO L677 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 [2020-10-16 11:17:34,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-16 11:17:34,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-16 11:17:34,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-16 11:17:34,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-10-16 11:17:34,169 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-10-16 11:17:34,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:34,169 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-10-16 11:17:34,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:17:34,170 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-10-16 11:17:34,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:17:34,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:34,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:34,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:17:34,173 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:34,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:34,174 INFO L82 PathProgramCache]: Analyzing trace with hash -2042509488, now seen corresponding path program 1 times [2020-10-16 11:17:34,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:34,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551509669] [2020-10-16 11:17:34,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:34,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:34,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551509669] [2020-10-16 11:17:34,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:34,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:17:34,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335877523] [2020-10-16 11:17:34,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:17:34,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:34,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:17:34,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:17:34,290 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states. [2020-10-16 11:17:34,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:34,318 INFO L93 Difference]: Finished difference Result 254 states and 660 transitions. [2020-10-16 11:17:34,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:17:34,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-16 11:17:34,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:34,320 INFO L225 Difference]: With dead ends: 254 [2020-10-16 11:17:34,321 INFO L226 Difference]: Without dead ends: 134 [2020-10-16 11:17:34,321 INFO L677 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 [2020-10-16 11:17:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-16 11:17:34,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-10-16 11:17:34,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-16 11:17:34,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 326 transitions. [2020-10-16 11:17:34,330 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 326 transitions. Word has length 10 [2020-10-16 11:17:34,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:34,331 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 326 transitions. [2020-10-16 11:17:34,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:17:34,331 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 326 transitions. [2020-10-16 11:17:34,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:17:34,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:34,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:34,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:17:34,333 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:34,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:34,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1680323254, now seen corresponding path program 1 times [2020-10-16 11:17:34,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:34,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447165876] [2020-10-16 11:17:34,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:34,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:34,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447165876] [2020-10-16 11:17:34,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:34,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:17:34,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182995655] [2020-10-16 11:17:34,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:17:34,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:34,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:17:34,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:17:34,389 INFO L87 Difference]: Start difference. First operand 134 states and 326 transitions. Second operand 3 states. [2020-10-16 11:17:34,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:34,395 INFO L93 Difference]: Finished difference Result 128 states and 307 transitions. [2020-10-16 11:17:34,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:17:34,397 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 11:17:34,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:34,398 INFO L225 Difference]: With dead ends: 128 [2020-10-16 11:17:34,398 INFO L226 Difference]: Without dead ends: 128 [2020-10-16 11:17:34,399 INFO L677 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 [2020-10-16 11:17:34,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-16 11:17:34,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-16 11:17:34,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-16 11:17:34,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 307 transitions. [2020-10-16 11:17:34,408 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 307 transitions. Word has length 11 [2020-10-16 11:17:34,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:34,408 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 307 transitions. [2020-10-16 11:17:34,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:17:34,408 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 307 transitions. [2020-10-16 11:17:34,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:17:34,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:34,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:34,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:17:34,410 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:34,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:34,411 INFO L82 PathProgramCache]: Analyzing trace with hash 550400496, now seen corresponding path program 1 times [2020-10-16 11:17:34,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:34,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692719436] [2020-10-16 11:17:34,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:34,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692719436] [2020-10-16 11:17:34,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:34,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:17:34,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043925534] [2020-10-16 11:17:34,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:17:34,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:34,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:17:34,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:17:34,444 INFO L87 Difference]: Start difference. First operand 128 states and 307 transitions. Second operand 3 states. [2020-10-16 11:17:34,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:34,449 INFO L93 Difference]: Finished difference Result 122 states and 288 transitions. [2020-10-16 11:17:34,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:17:34,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 11:17:34,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:34,451 INFO L225 Difference]: With dead ends: 122 [2020-10-16 11:17:34,451 INFO L226 Difference]: Without dead ends: 122 [2020-10-16 11:17:34,451 INFO L677 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 [2020-10-16 11:17:34,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-16 11:17:34,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-10-16 11:17:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-16 11:17:34,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 288 transitions. [2020-10-16 11:17:34,457 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 288 transitions. Word has length 12 [2020-10-16 11:17:34,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:34,458 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 288 transitions. [2020-10-16 11:17:34,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:17:34,458 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 288 transitions. [2020-10-16 11:17:34,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:17:34,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:34,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:34,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:17:34,460 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:34,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:34,460 INFO L82 PathProgramCache]: Analyzing trace with hash -117499308, now seen corresponding path program 1 times [2020-10-16 11:17:34,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:34,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537733553] [2020-10-16 11:17:34,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:34,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:34,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537733553] [2020-10-16 11:17:34,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:34,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:17:34,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031752705] [2020-10-16 11:17:34,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:17:34,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:34,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:17:34,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:17:34,545 INFO L87 Difference]: Start difference. First operand 122 states and 288 transitions. Second operand 4 states. [2020-10-16 11:17:34,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:34,585 INFO L93 Difference]: Finished difference Result 184 states and 429 transitions. [2020-10-16 11:17:34,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:17:34,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 11:17:34,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:34,587 INFO L225 Difference]: With dead ends: 184 [2020-10-16 11:17:34,587 INFO L226 Difference]: Without dead ends: 130 [2020-10-16 11:17:34,587 INFO L677 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 [2020-10-16 11:17:34,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-16 11:17:34,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 122. [2020-10-16 11:17:34,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-16 11:17:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 278 transitions. [2020-10-16 11:17:34,596 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 278 transitions. Word has length 13 [2020-10-16 11:17:34,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:34,596 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 278 transitions. [2020-10-16 11:17:34,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:17:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 278 transitions. [2020-10-16 11:17:34,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:17:34,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:34,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:34,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:17:34,602 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:34,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:34,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1997055762, now seen corresponding path program 2 times [2020-10-16 11:17:34,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:34,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202830829] [2020-10-16 11:17:34,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:34,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202830829] [2020-10-16 11:17:34,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:34,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:17:34,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805369911] [2020-10-16 11:17:34,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:17:34,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:34,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:17:34,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:17:34,689 INFO L87 Difference]: Start difference. First operand 122 states and 278 transitions. Second operand 4 states. [2020-10-16 11:17:34,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:34,718 INFO L93 Difference]: Finished difference Result 142 states and 318 transitions. [2020-10-16 11:17:34,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:17:34,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 11:17:34,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:34,720 INFO L225 Difference]: With dead ends: 142 [2020-10-16 11:17:34,720 INFO L226 Difference]: Without dead ends: 82 [2020-10-16 11:17:34,720 INFO L677 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 [2020-10-16 11:17:34,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-16 11:17:34,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-16 11:17:34,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-16 11:17:34,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 174 transitions. [2020-10-16 11:17:34,724 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 174 transitions. Word has length 13 [2020-10-16 11:17:34,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:34,724 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 174 transitions. [2020-10-16 11:17:34,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:17:34,725 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 174 transitions. [2020-10-16 11:17:34,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:17:34,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:34,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:34,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:17:34,726 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:34,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:34,726 INFO L82 PathProgramCache]: Analyzing trace with hash 616515302, now seen corresponding path program 1 times [2020-10-16 11:17:34,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:34,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994416323] [2020-10-16 11:17:34,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:34,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:34,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994416323] [2020-10-16 11:17:34,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:34,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:17:34,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637197086] [2020-10-16 11:17:34,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:17:34,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:34,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:17:34,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:17:34,781 INFO L87 Difference]: Start difference. First operand 82 states and 174 transitions. Second operand 3 states. [2020-10-16 11:17:34,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:34,794 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-10-16 11:17:34,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:17:34,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-16 11:17:34,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:34,795 INFO L225 Difference]: With dead ends: 74 [2020-10-16 11:17:34,795 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:17:34,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:17:34,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:17:34,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:17:34,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:17:34,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:17:34,797 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-16 11:17:34,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:34,797 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:17:34,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:17:34,797 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:17:34,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:17:34,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 11:17:34,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:17:34 BasicIcfg [2020-10-16 11:17:34,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:17:34,810 INFO L168 Benchmark]: Toolchain (without parser) took 4233.66 ms. Allocated memory was 140.0 MB in the beginning and 248.0 MB in the end (delta: 108.0 MB). Free memory was 101.6 MB in the beginning and 188.5 MB in the end (delta: -86.9 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:17:34,811 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:17:34,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.40 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.2 MB in the beginning and 160.3 MB in the end (delta: -59.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:17:34,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.57 ms. Allocated memory is still 203.4 MB. Free memory was 160.3 MB in the beginning and 158.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-16 11:17:34,821 INFO L168 Benchmark]: Boogie Preprocessor took 24.47 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:17:34,822 INFO L168 Benchmark]: RCFGBuilder took 401.75 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 133.7 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:17:34,825 INFO L168 Benchmark]: TraceAbstraction took 3096.14 ms. Allocated memory was 203.4 MB in the beginning and 248.0 MB in the end (delta: 44.6 MB). Free memory was 133.7 MB in the beginning and 188.5 MB in the end (delta: -54.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:17:34,833 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 657.40 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.2 MB in the beginning and 160.3 MB in the end (delta: -59.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.57 ms. Allocated memory is still 203.4 MB. Free memory was 160.3 MB in the beginning and 158.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.47 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 401.75 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 133.7 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3096.14 ms. Allocated memory was 203.4 MB in the beginning and 248.0 MB in the end (delta: 44.6 MB). Free memory was 133.7 MB in the beginning and 188.5 MB in the end (delta: -54.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 850 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 69 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 60 TotalNumberOfCompositions, 2810 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 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 144 SDtfs, 81 SDslu, 119 SDs, 0 SdLazy, 46 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2334 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...